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Tytuł:
Effect of thermal conditioning of the sodium silicate glass on the value of Zeta potential of the soluble sodium silicate
Wpływ kondycjonowania termicznego szkliwa krzemianowo-sodowego na wartość potencjału Zeta uwodnionego krzemianu sodu
Autorzy:
Baliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/391818.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:
uwodniony krzemian sodu
szkliwo krzemianowo-sodowe
potencjał zeta
soluble sodium silicate
sodium silicate glass
zeta potential
Opis:
Problems connected with a change of Zeta potential values of soluble sodium silicate are presented. Soluble sodium silicate was made from sodium-silicate glass to thermally conditioned at a temperature of 1350°C for 60, 90 and 120 minutes. It was found that particles in all types of the soluble sodium silicate have similar electrokinetic properties. In the soluble sodium silicate made from the sodium-silicate glass subjected to thermally conditioned for 120 minutes, particles with the highest value of the Zeta potential were present. They provide the most intense laser light scattering.
Przedstawiono zagadnienia związane ze zmianą wartości potencjału Zeta uwodnionego krzemianu sodu. Uwodniony krzemian sodu był wykonany ze szkliwa krzemianowo- -sodowego poddanego kondycjonowaniu termicznemu w temperaturze 1350°C przez 60, 90 i 120 minut. Stwierdzono, że we wszystkich rodzajach uwodnionego krzemianu sodu występują cząstki o zbliżonych właściwościach elektrokinetycznych. W uwodnionym krzemianie sodu wykonanym ze szkliwa krzemianowo-sodowego poddanego kondycjonowaniu termicznemu przez 120 minut, cząstki o największej wartości potencjału Zeta są źródłem największej intensywności rozpraszania światła laserowego.
Źródło:
Prace Instytutu Odlewnictwa; 2012, 52, 2; 5-11
1899-2439
Pojawia się w:
Prace Instytutu Odlewnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The flotation separation of barite-calcite using sodium silicate as depressant in the presence of sodium dodecyl sulfate
Autorzy:
Chen, Xiong
Gu, Guohua
Liu, Donghui
Zhu, Renfeng
Powiązania:
https://bibliotekanauki.pl/articles/110272.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
calcite
barite
sodium dodecyl sulfate
sodium silicate
Opis:
The flotation separation of barite from calcite using sodium dodecyl sulfate (SDS) as the collector and sodium silicate (SS) as the depressant has been concretely studied in this paper. The results show that SDS has high collecting ability for both barite and calcite and that the flotation separation of barite from calcite cannot be achieved by using SDS alone. The depressant sodium silicate has a selective depression effect on calcite by the control of the pulp pH at 9.0 in the presence of SDS. Through locked cycle tests, a concentrate containing 95.54% BaSO4 can be obtained from an actual ore containing 24.5% BaSO4, with a recovery of 86.11%. The zeta potential measurements, adsorption analysis and infrared spectrum studies reveal that the pre-adsorption of sodium silicate strongly favors the adsorption of SDS on the calcite surface and adversely affects SDS adsorption on the barite surface. This property is the reason for the selective depression of SS on calcite.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 2; 346-355
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Function and mechanism of sodium silicate in the cleaning process of ilmenite rough concentrate
Autorzy:
Xiong, Kun
Wen, Shuming
Deng, Jiushuai
Cai, Jiaozhong
Lv, Mengyang
Powiązania:
https://bibliotekanauki.pl/articles/110255.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ilmenite
sodium silicate
titanaugite
cleaning
rough concentrate
Opis:
The grade of titanium dioxide (TiO2) from Panzhihua titanium concentrate (defined as the ilmenite rough concentrate in this paper) is generally around 47%. The high impurity content in the titanium concentrate causes difficulties for its successive use in the production of titania pigment. Further purification of the ilmenite concentrate will make it more useful for industrial use. In this study, a further cleaning process of the ilmenite rough concentrate is conducted using sodium silicate as the depressant, and the function of sodium silicate is determined by flotation, absorption measurements, Zeta potential measurements, and infrared spectral analysis. The results indicate that an ilmenite concentrate with a TiO2  grade of 50.37% can be achieved from 46.78% according to the stages on the flowsheet-one roughing, three cleaning and one scavenging-under the optimal conditions, and can also reflect the advantages of the excellent selectivity of sodium silicate. Sodium silicate can hinder the adsorption of salicylhydroxamic acid (SHA) on the titanaugite surface but has almost no effect on ilmenite. Multiple methods comprehensively confirm that sodium silicate provides a good selective depression effect for the further purification of the ilmenite rough concentrate.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 5; 1099-1107
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of manganese ions addition orders on the flotation behavior of scheelite
Autorzy:
Lu, Kuanwei
Chen, Rong
Zhang, Ying
Luo, Hongying
Yang, Hu
Cai, Jiaozhong
Powiązania:
https://bibliotekanauki.pl/articles/1845215.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
manganese ion
addition order
scheelite
sodium silicate
flotation
Opis:
In this study, the effect of MnCl2 on scheelite flotation with sodium oleate (NaOL) as a collector and sodium silicate as a depressant was assessed by a combination of flotation experiments, Fouriertransform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and solution chemistry. The flotation experiments confirmed that the addition of MnCl2 before sodium silicate showed an adverse effect on flotation and the recovery of scheelite gradually decreased as the amount of MnCl2 was increased. When MnCl2 was added afte r sodium silicate, the recovery of scheelite gradually increased with an increase in the amount of MnCl2. The results of FTIR, XPS, and solution chemistry indicated that MnCl2 acted on the surface of scheelite in the form of manganese ions. When MnCl2 was added before sodium silicate, manganese ions adsorbed on the surface of scheelite reacted with sodium silicate to form a hydrophilic silicate, which covers the surface of scheelite and blocks the adsorption of NaOL. However, when MnCl2 was added after sodium silicate, manganese ions are continued to be adsorbed on the surface of scheelite, which increases the cations on the surface of scheelite, and hence the condition becomes conducive for the interaction between scheelite and NaOL.
Źródło:
Physicochemical Problems of Mineral Processing; 2020, 56, 5; 860-873
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Additive "B" on the Properties of CO2-Hardened Foundry Sands with Hydrated Sodium Silicate
Autorzy:
Kamińska, J.
Angrecki, M.
Palma, A.
Jakubski, J.
Wildhirt, E.
Powiązania:
https://bibliotekanauki.pl/articles/352315.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industry
moulding sand
hydrated sodium silicate
additive “B”
Opis:
The results of own studies concerning the application of a new additive to the CO2-hardened sodium water glass foundry sands are presented. The new additive, which is a composition of aqueous solutions of modified polyalcohols, has been designated by the symbol “B” and is used as an agent improving the sand knocking out properties. The scope of studies included various mechanical and technological properties of foundry sand mixtures, such as permeability, friability, life cycle of cores and knocking out properties. Two types of water glass with different values of the silica modulus and density, designated as R145 and R150, were tested. Moulding sands used in the tests were made with the additive “B”. For comparison, a reference sand mixture with water glass but without the additive “B” was also prepared.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1637-1641
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Setting Time and Compressive Strength of Geopolymers Made of Three Indonesian Low Calcium Fly Ash with Variation of Sodium Silicate Addition
Autorzy:
Hidayati, Ririn Eva
Faradilla, Fitria Sandi
Dadang, Dadang
Harmelia, Lia
Nurlina, Nurlina
Prasetyoko, Didik
Fansuri, Hamzah
Powiązania:
https://bibliotekanauki.pl/articles/2049135.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fly ash
geopolymer
sodium silicate
low calcium
waste management
Opis:
In this research, the effect of sodium silicate (Na2SiO3) on the geopolymerization of fly ash type F (low calcium) has been studied. the variations of Na2SiO3 used in the synthesized geopolymers were 19, 32, and 41wt%. the fly ash from three different power plant sources was characterized using X-Ray Fluorescence (XRF), X-Ray diffraction (XRD), Particle Size Analyzer (PSA), and Scanning Electron Microscopy (SEM). Fly ash-based geopolymers were tested for mechanical strength and setting time. the best geopolymer was obtained by adding 32% Na2SiO3, produced a compressive strength of 21.62 MPa with a setting time of 30 hours. additions of 19wt% Na2SiO3 failed to form geopolymer paste while the addition of 41wt% Na2SiO3 decreased the mechanical strength of the geopolymer. Higher calcium content in low calcium fly ash produces stronger geopolymer and faster setting time.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 4; 1115-1121
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Density Degree and Grade of Inorganic Binder on Behavior of Molding Sand at High Temperature
Autorzy:
Stachowicz, M.
Paduchowicz, P.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/106947.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
foundry
hydrated sodium silicate
hot-distortion
thermal deformation
molding sands
Opis:
This paper discusses the impact of high temperatures (up to 900°C) on molding and core sand with inorganic binders selected from among the group of unmodified grades of hydrated sodium silicate (water-glass). Molding sands with medium quartz sand were made under laboratory conditions and compacted at the different energy inputs necessary for obtaining various apparent densities (ϱ0). Due to the different composition and apparent density of molding mixtures hardened via microwaves at a frequency of 2.45 GHz, it was possible to assess their deformation (L) at a high temperature above the binder’s eutectic temperature. For this purpose, an apparatus for hot distortion tests was used whose construction and equipment allows us to measure the thermoplastic deformations in molding sand in many aspects; i.e., in its time of annealing. The article proposes new possibilities of interpreting the hot distortion phenomena in comparative studies of molding materials and mixtures. The application of this new measurement method revealed the differences between molding mixtures made with five inorganic binders with a molar module ranging from 2.0 to 3.4 and apparent density ranging from 1.34 to 1.57 g/cm3. It was established that distortions under the influence of high temperatures last the longest in molding sand with a binder with the highest molar module (3.4). Research also revealed that the density of molding sand is significant for increasing/decreasing the rate of thermoplastic deformations following the heating of samples only if the molding sand includes binders with a molar module of between 3.0 to 3.4. For molding sand with binders with molar modules from 2.0 to 2.5, it was established that this is excessively susceptible to thermoplastic deformation.
Źródło:
Journal of Casting & Materials Engineering; 2017, 1, 3; 64-69
2543-9901
Pojawia się w:
Journal of Casting & Materials Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of elicitation with sodium silicate and iron chelate on the composition and quality of fatty acids in buckwheat sprouts
Autorzy:
Debski, H.
Horbowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1192811.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
common buckwheat
sprouts
elicitation
iron chelate
sodium silicate
fatty acids
Opis:
In laboratory experiments, the impact of elicitation with a mixture of sodium silicate and iron chelate or sodium silicate alone on fatty acid composition in sprouts of common buckwheat (Fagopyrum esculentum Moench) has been examined. Buckwheat seeds and then sprouts were soaked for 0.5 h each day over six days in an aqueous solution of the mentioned elicitors. The sprouts were grown in the light regime of 16/8 h, day/night. After seven days of germination (sprouting), the composition of fatty acids in freeze-dried and powdered sprout tissues was analyzed by gas chromatography. The results showed significant changes in the composition of fatty acids in sprouts in comparison to buckwheat seeds. The results indicate that the germination of buckwheat seeds leads to an increase in myristic (C14:0), palmitic (C16:0), stearic (C18:0) and behenic (C20:0) acid in sprouts, although the use of the elicitors, especially sodium silicate, inhibited this tendency. The sprouts of common buckwheat contained almost twice as much α-linolenic acid (C18:3) as the seeds did, and slightly less linoleic acid (C18:2). Moreover, the use of elicitors favored an increased accumulation of α-C18:3. As a result, germination drastically reduced the C18:2/a-C18:3 ratio by about 4 times, which may have a positive health effect. The buckwheat sprouts contained traces of eicosatrienoic (C20:3), eicosatetraenoic (C20:4), docosaenoic (C22:1) and docosadienoic (C22:2) acids, while their content in the seeds was between 0.6 and 2.4%. The buckwheat sprouts had a higher atherogenic (AI) and thrombogenic index (TI) and a lower health index (HI) than seeds did, but the use of elicitors inhibited this tendency.
Źródło:
Journal of Elementology; 2021, 26, 1; 87-96
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of sand base preparation on properties of chromite moulding sands with sodium silicate hardened with selected methods
Autorzy:
Stachowicz, M.
Granat, K.
Pałyga, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/354867.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry engineering
chromite sand
hydrated sodium silicate
strength properties
microwave hardening
Opis:
The paper presents a research on the relation between thermal preparation of chromite sand base of moulding sands containing sodium silicate, hardened with selected physical and chemical methods, and structure of the created bonding bridges. Test specimens were prepared of chromite sand - fresh or baked at 950°C for 10 or 24 hours - mixed with 0.5 wt.% of the selected non-modified inorganic binder and, after forming, were hardened with CO2 or liquid esters, dried traditionally or heated with microwaves at 2.45 GHz. It was shown on the grounds of SEM observations that the time of baking the base sand and the hardening method significantly affect structure of the bonding bridges and are correlated with mechanical properties of the moulding sands. It was found that hardening chromite-based moulding mixtures with physical methods is much more favourable than hardening with chemical methods, guaranteeing also more than ten times higher mechanical properties.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 1; 379-383
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of Hardening Technology of Moulding Sand with Hydrated Sodium Silicate Binder Devoted to Aluminum Alloys Ablation Casting
Autorzy:
Major-Gabryś, K.
Hosadyna-Kondracka, M.
Grabarczyk, A.
Kamińska, J.
Powiązania:
https://bibliotekanauki.pl/articles/354196.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry engineering
ablation casting
moulding sands
hydrated sodium silicate
hot-box technology
Opis:
The ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and watersoluble binder. After pouring the mould with liquid metal, while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. The following paper focuses on the selection of moulding sands with hydrated sodium silicate technologies for moulds devoted to the ablation casting of aluminum alloys. It has been proposed to use different types of moulding sands with a water-soluble binder, which is hydrated sodium silicate. The authors showed that the best kind of moulding sands for moulds for Al alloy casting will be moulding sands hardened with physical factors – through dehydration. The use of microwave hardened moulding sands and moulding sands made in hot-box technology has been proposed. The tests were carried out on moulding sands with different types of modified binder and various inorganic additives. The paper compares viscosity of different binders used in the research and thermal degradation of moulding sands with tested binders. The paper analyzes the influence of hardening time periods on bending strength of moulding sands with hydrated sodium silicate prepared in hot-box technology. The analysis of literature data and own research have shown that molding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties for the ablation foundry of Al alloys.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 359-364
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of South African Silica Sand Properties on the Strength Development and Collapsibility of Single Component Sodium Silicate Binders
Autorzy:
Banganayi, F. C.
Nyembwe, K.
Polzin, H.
Powiązania:
https://bibliotekanauki.pl/articles/379673.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inorganic binders
sodium silicate
strength development
collapsibility
spoiwo nieorganiczne
krzemian sodu
wytrzymałość spoiwa
Opis:
This study shows the results of the investigation of the strength performance, and residual strength of a single component inorganic binder system Cast Clean S27®. The study was conducted using three different foundry sand sources in South Africa. Sample A is an alluvial coastal sample, sample B is an alluvial riverbed sample and Sample C is a blasted sample from a consolidated quartzite rock. The binder was also cured using three different curing mechanisms. The aim of the investigation was to determine the variation of strength performance and residual strength between the different South African sand sources based upon the physical and chemical properties of the sand sources. The moulding sand was prepared using three possible curing mechanisms which are carbon dioxide curing, ester curing and heat curing. The strength measurements were determined by bending strength. Sample A and sample C sand had good strength development. Sample B sand had inferior strength development and excellent high temperature residual strength. The study showed that the single component inorganic binders have good strength development and low residual strength. The silica sand properties have major contributing factors on both strength development and residual strength. The degree of influence of silica sand properties on strength performance and residual strength is dependent on the time of curing and method of curing.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 5-12
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Granulacja krzemianów sodu metodą prasowania
Granulation of sodium silicates by pressing method
Autorzy:
Kużdżał, E.
Walawska, B.
Kwiecień, J.
Powiązania:
https://bibliotekanauki.pl/articles/1218903.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
krzemiany sodu
granulacja
granulacja metodą prasowania
sodium silicate
granulation
granulation by pressing method
Opis:
W artykule opisano wstępne wyniki badań granulacji krzemianów sodu metodą prasowania. Prowadzone badania miały na celu sprawdzenie możliwości uzyskania z pylistych surowców granulatów o określonym rozkładzie ziarnowym. W badaniach laboratoryjnych stosowano pyliste krzemiany sodu o module 2,0-3,3 SiO2 mol/ Na2O mol. Prowadzono je w prasie matrycowej firmy AWPMA. W ramach badań wyznaczono wpływ ciśnienia prasowania na stopień zagęszczenia oraz określono optymalne ciśnienie prasowania badanych krzemianów. Uzyskano produkty charakteryzujące się większym ziarnem i wyższymi gęstościami nasypowymi. Otrzymane wyniki umożliwiają dobór urządzeń przemysłowych do granulacji dwukrzemianów sodu jako głównego produktu, z jednoczesną możliwością otrzymania granulowanych krzemianów o innych module.
The preliminary results of studies of sodium silicate granulation by pressing method was described. The studies was conducted to test the possibility of obtaining the powdery raw material granules with a specific particle size distribution. In laboratory studies powdered sodium silicates with module of 2 up to 3.3 SiO2 moles/Na2O moles were used. They were investigated in the AWPMA's matrix press. The studies determined the impact of compaction pressure on the densification degree and the optimal compression pressure of tested silicates was determined. The products of larger grains and higher bulk densities were obtained. The results allow the selection of industrial equipment for granulation of sodium disilicates as the main product and the possibility of obtaining granulated silicates of other module at the same time.
Źródło:
Chemik; 2012, 66, 5; 515-524
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of the Modified Ablation Casting on Casts Properties Produced in Microwave Hardened Moulds with Hydrated Sodium Silicate Binder
Autorzy:
Major-Gabryś, K.
Hosadyna-Kondracka, M.
Puzio, S.
Kamińska, J.
Angrecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/352738.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
ablation casting
hydrated sodium silicate
microwave hardening
mechanical properties of casting
Opis:
The ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and water-soluble binder. After pouring the mould with liquid metal the mould is destructed (washed out) using a stream of cooling medium, which in this case is water. The process takes place while the casting is still solidifying. The following paper focuses on testing the influence of the modified ablation casting of aluminum alloy on casts properties produced in moulds with hydrated sodium silicate binder. The authors showed that the best kind of moulding sands for Al alloy casting will be those hardened with physical factors – through dehydration. The analysis of literature data and own research have shown that the moulding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties for the modified ablation casting of Al alloys. In the paper the use of microwave hardened moulding sands has been proposed. The moulds were prepared in the matrix specially designed for this technology. Two castings from the AlSi7Mg alloy were made; one by traditional gravity casting and the other by gravity casting using ablation. The conducted casts tests showed that the casting made in modified ablation casting technology characterizes by higher mechanical properties than the casting made in traditional casting technology. In both experimental castings the directional solidification was observed, however in casting made by ablation casting, dimensions of dendrites in the structure at appropriate levels were smaller.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 1; 497-502
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic Measurement System of Hydrated Sodium Silicate Composition Analysis
Autorzy:
Wang, Huafang
Wang, Quanrun
Zhang, Wu
Gao, Xiang
Lu, Jijun
Powiązania:
https://bibliotekanauki.pl/articles/1837674.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hydrated sodium silicate
composition analysis
potentiometr
titration
uwodniony krzemian sodu
analiza składu
potencjometr
miareczkowanie
Opis:
Sodium silicate is one of the most successful inorganic binder. Along with the broad application of sodium silicate for domestic and industrial purposes, the composition analysis, include modulus (m), ratio of SiO2:Na2O, Na2O%, SiO2%, and solid-containing content, is important for the products strength and service life. However, it is perplexing to operate, inefficient and low precision for traditional standard testing method of these parameters. In this study, an automatic measurement system of sodium silicate composition analysis, with the potential electrode for potentiometer titration, micro-controller, PCB, heater, stirrer, printer and micro peristaltic pump, was developed according to the determine method principle. The end-points of pH value in the two titrating steps, first was 4.3 and second was 6.0, were set in the micro-controller to control the reaction in the processing of the sodium silicate composition analysis. And all the potential signals of the pH electrode were transited in the special PCB for the micro-controller.
Źródło:
Archives of Foundry Engineering; 2021, 21, 2; 5-8
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of thermal conditioning of silica-sodium glass on the kinetics of Zeta potential changes during soluble sodium silicate gelation
Wplyw kondycjonowania termicznego szkliwa krzemianowo-sodowego na kinetyke zmian potencjalu Zeta w procesie zelowania uwodnionego krzemianu sodu
Autorzy:
Balinski, A.
Powiązania:
https://bibliotekanauki.pl/articles/792672.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
soluble sodium silicate
kinetics
silica-sodium glass
zeta potential change
thermal condition
gelation
nanostructure
binder-quartz system
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 45

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