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Tytuł:
Usage of thermosyphon for avoiding of low grade corrosion on the surfaces of air heaters and increasing of thermal efficiency of steam generators PK-38-4
Autorzy:
Iliev, I.
Lazarov, S.
Powiązania:
https://bibliotekanauki.pl/articles/175291.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heat pipes
thermosyphon
waste heat recovery
air heater
Opis:
The paper presents and analyzes new type air heater, which uses the thermosyphon’s technology, aims to replace the existing horizontal tubular air heater of first-degree for steam generators Nos.5,6,7 and 8 at TPP Maritsa East-2 in Bulgaria. The main advantage of the air heater with heat pipes is the ability to lower the temperature of exhaust gases to levels that are impossible for the conventional tubular air heaters, thus increasing the efficiency of the steam generator. Along with the increased energy efficiency, reductions in CO2, SOx and NOx emissions into the atmosphere are achieved. The preheating of the air, used for air combustion by recirculation relieving the operation and improving the combustion in the steam generator, is also reduced.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2014, 126; 211-219
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The idea of the recovery of municipal solid waste incineration (MSWI) residues in Kłodawa Salt Mine S.A. by filling the excavations with self-solidifying mixtures
Koncepcja odzysku odpadów z instalacji termicznego przekształcania odpadów komunalnych (ITPOK) w technologii wypełniania wyrobisk samozestalającymi się mieszaninami w Kopalni Soli „Kłodawa”
Autorzy:
Korzeniowski, W.
Poborska-Młynarska, K.
Skrzypkowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/219581.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odzysk odpadów
podsadzka utwardzana
Kopalnia Soli „Kłodawa”
odpady ITPOK
waste recovery
hardening backfill
Kłodawa Salt Mine
MSWI residues
Opis:
In view of the permanent increase of the municipal solid waste incineration (MSWI) residues amount, the numerous attempts to find a way of their recovery have been undertaken. In this paper the idea of the recovery of the MSWI residues in Kłodawa salt mine is presented. The idea is to fill the waste in underground workings, close and/or backfill the underground excavations with self-solidifying mixture prepared on the basis of MSWI grained solid residues. Two techniques are proposed: 1) hydraulic backfill technique (HBT) where the mixture is prepared in the surface installation and pumped down into the underground workings through shaft and the pipelines and 2) dry waste technique (DWT), where dry grained waste is dropped into the mine by pneumatic pipeline transport, then supplied to the underground mixture-preparing-installation and pumped as a thin liquid or paste into the selected workings. The description of the technology is preceded by general characteristic of the hardening backfill in underground mines and by characteristic of MSWI residues, drafted on the basis of the literature review.
Wobec stale przyrastającej ilości odpadów wtórnych pochodzących z instalacji termicznego przekształcania odpadów komunalnych (ITPOK) poszukuje się sposobów ich odzysku i unieszkodliwiania. W artykule przedstawiono koncepcję technologii odzysku odpadów ITPOK w Kopalni Soli „Kładowa”. Polega ona na wypełnianiu, likwidacji i podsadzaniu wyeksploatowanych wyrobisk samozestalającą się mieszaniną sporządzoną na bazie drobnoziarnistych odpadów stałych pochodzących ze spalarń odpadów komunalnych. Zaproponowano dwie technologie: 1) technologię podsadzki hydraulicznej (TPH), w której mieszanina jest przygotowywana w instalacji powierzchniowej i jest dostarczana poprzez szyb do wyrobisk kopalni rurociągiem oraz 2) technologię suchego odpadu (TSO), w której odpady z powierzchni transportowane są pneumatycznie rurociągiem do kopalni, następnie dostarczane są do podziemnej instalacji przygotowania mieszaniny, po czym mieszanina jako płynna ciecz lub gęsta pasta jest przepompowana rurociągiem do docelowych wyrobisk. Opis koncepcyjny technologii poprzedzono ogólną charakterystyką utwardzanej podsadzki w kopalniach podziemnych i odpadów z ITPOK opracowaną na podstawie przeglądu literatury.
Źródło:
Archives of Mining Sciences; 2018, 63, 3; 553-565
0860-7001
Pojawia się w:
Archives of Mining Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waste heat recovery from the air preparation room in a paint shop
Autorzy:
Adamkiewicz, Andrzej
Nikończuk, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/240142.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
waste heat recovery
air compression
paint shop
ciepło odpadowe
sprężanie powietrza
lakiernia
Opis:
The policy of sustainable development seeks to improve energy efficiency of industrial equipment. Efforts to improve energy efficiency also apply to the paint shops, where the recovery of waste heat is sought. The main source of a large amount of low-temperature waste heat in the paint shop is the spray booth. The second place where a large amount of low temperature waste heat is released is the room where the compressed air is prepared. Low energy efficiency of air compressors requires a large electric power supply. As a result, the emitted large heat fluxes become waste energy of the technological process. Heat is equivalent to up to 93% of the electric power supplied in the air compression process. There are solutions for recovering heat from compressors coming from the oil cooling water, but then the waste heat from the cooling of the compressed air and from the electric motor is released into air in the room. A method for recovering low-temperature waste heat from the air preparation room by means of an air-source heat pump has been proposed. An energy balance of the air compression and dehumidification process for the paint shop was made. A Matlab’s built-in numerical model includes air compressor and dehumidifier, heat recovery and accumulation for the purposes of use in the spray booth. A simulation experiment was carried out on the effectiveness of heat recovery from the air preparation room. The use of combined energy management in paint shops was proposed.
Źródło:
Archives of Thermodynamics; 2019, 40, 3; 229-241
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An innovative method for waste heat recovery from flue gas treatment system through an additional economizer
Autorzy:
Iliev, Iliya Krastev
Kowalczyk, Tomasz
Beloev, Hristo Kvanov
Terziev, Angel Kostadinov
Jesionek, Krzysztof Jan
Badur, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/2091368.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
waste heat recovery
flue gases
feasibility study
battery emulsifier second generation
bag filters
Opis:
The usage of wet methods for flue gas dedusting from coalfired boilers is associated with significant heat losses and water resources. Widespread emulsifiers of the first and second generation are satisfactory in terms of flue gas cleaning efficiency (up to 99.5%), but at the same time do not create conditions for deeper waste heat recovery, leading to lowering the temperature of gases. Therefore, in the paper, an innovative modernization, including installing an additional economizer in front of the scrubber (emulsifier) is proposed, as part of the flue gas passes through a parallel bag filter. At the outlet of the emulsifier and the bag filter, the gases are mixed in a suitable ratio, whereby the gas mixture entering the stack does not create conditions for condensation processes in the stack.
Źródło:
Archives of Thermodynamics; 2022, 43, 2; 37--59
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the influence of capillary effect on operation of the loop heat pipe
Autorzy:
Mikielewicz, D.
Błauciak, K.
Powiązania:
https://bibliotekanauki.pl/articles/240739.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
loop heat pipe
capillary forces
waste heat recovery
rurka ciepła z pętlą obiegową
siły kapilarne
wykorzystanie energii odpadowej
Opis:
In the paper presented are studies on the investigation of the capillary forces effect induced in the porous structure of a loop heat pipe using water and ethanol ad test fluids. The potential application of such effect is for example in the evaporator of the domestic micro-CHP unit, where the reduction of pumping power could be obtained. Preliminary analysis of the results indicates water as having the best potential for developing the capillary effect.
Źródło:
Archives of Thermodynamics; 2014, 35, 3; 59-80
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of an impulse and a reaction turbine stage for an ORC power plant
Autorzy:
Zaniewski, Dawid
Klimaszewski, Piotr
Witanowski, Łukasz
Jędzejewski, Łukasz
Klonowicz, Piotr
Lampart, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/240056.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CFD
waste heat recovery
steam turbine
organic Rankine cycle
ciepło odpadowe
odzysk ciepła
ORC
organiczny cykl Rankine'a
Opis:
Turbine stages can be divided into two types: impulse stages and reaction stages. The advantages of one type over the second one are generally known based on the basic physics of turbine stage. In this paper these differences between mentioned two types of turbines were indicated on the example of single stage turbines dedicated to work in organic Rankine cycle (ORC) power systems. The turbines for two ORC cases were analysed: the plant generating up to 30 kW and up to 300 kW of net electric power, respectively. Mentioned ORC systems operate with different working fluids: DMC (dimethyl carbonate) for the 30 kW power plant and MM (hexamethyldisiloxane) for the 300 kW power plant. The turbines were compared according to three major issues: thermodynamic and aerodynamic performance, mechanical and manufacturing aspects. The analysis was performed by means of the 0D turbomachinery theory and 3D computational aerodynamic calculations. As a result of this analysis, the paper indicates conclusions which type of turbine is a recommended choice to use in ORC systems taking into account the features of these systems.
Źródło:
Archives of Thermodynamics; 2019, 40, 3; 137-157
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie wybranych konstrukcji wymienników ciepła pracujących w układzie odzysku ciepła odpadowego ze spalin wylotowych
Comparison of selected designs of heat exchangers operating in heat recovery systems from flue gases
Autorzy:
Szulc, P.
Tietze, T.
Rączka, P.
Wójs, K.
Powiązania:
https://bibliotekanauki.pl/articles/173165.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wymiennik ciepła
odzysk ciepła odpadowego
spaliny wylotowe
blok energetyczny
Mathcad
heat exchanger
waste heat recovery
flue gases
power unit
Opis:
This paper describes the state-of-the-art on the methods of waste heat recovery from flue gases in coal-fired power units. The different types of heat exchangers for recovery waste heat from the flue gases in the coal-fired plants were compared. The calculations use two mathematical models for calculations one is based on the balance mean values and the second one on the VDI model with the Colburn-Hagen method. The results of calculations for heat exchangers operating in the cross flow configuration, as well as with horizontal tubes or the multi-pass were compared.
W pracy przedstawiono stan wiedzy w zakresie metod odzysku ciepła odpadowego ze spalin wylotowych w blokach energetycznych elektrowni węglowych. Porównano różne typy wymienników ciepła do odzysku ciepła odpadowego ze spalin w bloku energetycznym elektrowni węglowej. W obliczeniach wykorzystano dwa modele matematyczne bilansowy opierający się na uśrednionych wartościach cieplnych i przepływowych oraz model VDI Heat Atlas (VDI Wrmeatlas) [10] w połączeniu z metodą Colburna-Hagena. Wszystkie obliczenia wykonano z wykorzystaniem programu Mathcad. Przedstawiono wyniki obliczeń dla kondensacyjnych wymienników ciepła (z poziomym i krzyżowym układem rur chłodzących) oraz dla wielobiegowych bezkondesacyjnych wymienników ciepła.
Źródło:
Archiwum Energetyki; 2013, 43, 1/2; 11-30
0066-684X
Pojawia się w:
Archiwum Energetyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A case study of working fluid selection for a small-scale waste heat recovery ORC system
Autorzy:
Klimaszewski, Piotr
Zaniewski, Dawid
Witanowski, Łukasz
Suchocki, Tomasz
Klonowicz, Piotr
Lampart, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/240748.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
waste heat recovery
organic Rankine cycle
ORC fluids
heat exchangers
turboexpander
ciepło odpadowe
odzysk ciepła
ORC
organiczny cykl Rankine'a
wymienniki ciepła
turboekspander
Opis:
The paper illustrates a case study of fluid selection for an internal combustion engine heat recovery organic Rankine cycle (ORC) system having the net power of about 30 kW. Various criteria of fluid selection are discussed. Particular attention is paid to thermodynamic performance of the system and human safety. The selection of working fluid for the ORC system has a large impact on the next steps of the design process, i.e., the working substance affects the turbine design and the size and type of heat exchangers. The final choice is usually a compromise between thermodynamic performance, safety and impact on natural environment. The most important parameters in thermodynamic analysis include calculations of net generated power and ORC cycle efficiency. Some level of toxicity and flammability can be accepted only if the leakages are very low. The fluid thermal stability level has to be taken into account too. The economy is a key aspect from the commercial point of view and that includes not only the fluid cost but also other costs which are the consequence of particular fluid selection. The paper discusses various configurations of the ORC system – with and without a regenerator and with direct or indirect evaporation. The selected working fluids for the considered particular power plant include toluene, DMC (dimethyl carbonate) and MM (hexamethyldisiloxane). Their advantages and disadvantages are outlined.
Źródło:
Archives of Thermodynamics; 2019, 40, 3; 159-180
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermodynamical motivation of the Polish energy policy
Autorzy:
Ziębik, A.
Powiązania:
https://bibliotekanauki.pl/articles/240888.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
efektywność energetyczna
egzergia
kogeneracja
koszt termoekologiczny
odzysk ciepła
polityka energetyczna
straty egzergii
cogeneration
energy effectiveness
energy policy
exergy
exergy losses
thermoecological cost
Waste-heat recovery
Opis:
Basing on the first and second law of thermodynamics the fundamental trends in the Polish energy policy are analysed, including the aspects of environmental protection. The thermodynamical improvement of real processes (reduction of exergy losses) is the main way leading to an improvement of the effectivity of energy consumption. If the exergy loss is economically not justified, we have to do with an error from the viewpoint of the second law analysis. The paper contains a thermodynamical analysis of the ratio of final and primary energy, as well as the analysis of the thermo-ecological cost and index of sustainable development concerning primary energy. Analyses of thermo-ecological costs concerning electricity and centralized heat production have been also carried out. The effect of increasing the share of high-efficiency cogeneration has been analyzed, too. Attention has been paid to an improved efficiency of the transmission and distribution of electricity, which is of special importance from the viewpoint of the second law analysis. The improvement of the energy effectivity in industry was analyzed on the example of physical recuperation, being of special importance from the point of view of exergy analysis.
Źródło:
Archives of Thermodynamics; 2012, 33, 4; 3-21
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of Oxidizing Agents in Leaching Process of Electronic Waste
Autorzy:
Lisińska, M.
Saternus, M.
Willner, J.
Fornalczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/352176.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ozone
leaching process
electronic waste
metals recovery
Opis:
New technologies and the globalization of the electrical and electronic equipment market cause a continuous increase in the amount of electrical and electronic waste. They constitute one of the waste groups that grows the fastest in quantity. The development of the new generation of electrical and electronic devices is much faster than before. Recently attention has been concentrated on hydrometallurgical methods for the recovery of metals from electronic waste. In this article the role of an oxidizing agent, mainly ozone and hydrogen peroxide was presented in hydrometallurgical processes. Leaching process of printed circuits boards (PCBs) from used cell phones was conducted. The experiments were carried out in the presence of sulfuric acid and ozone as an oxidizing agent for various temperatures, acid concentration, ozone concentration. As a result, the concentrations of copper, zinc, iron and aluminum in the obtained solution were measured. The obtained results were compared to results obtained earlier in the presence of hydrogen peroxide as an oxidizing agent and discussed.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 969-974
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of Leaching of the Printed Circuit Boards Coming from Waste Mobile Phones
Autorzy:
Lisińska, M.
Saternus, M.
Willner, J.
Powiązania:
https://bibliotekanauki.pl/articles/355683.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile phone waste
PCB
metals recovery
leaching
Opis:
The continuous changing technologies of electronic devices, mainly mobile phones cause that their life is shorten from year to year (even to 8-12 months); that is way there is a constantly increasing amount of generated waste. Such waste treatment to recover mainly copper and other base metals should be really profitable. The process of metals recovery could be done using different methods including pyro- and hydrometallurgical process. The paper describes the research of leaching process of Printed Circuit Boards (PCB) coming from waste mobile phones. As a leaching agent sulfuric acid was used with addition of hydrogen peroxides. Experiments were carried out for different temperature, acid concentration and addition of hydrogen peroxide. As a result the concentration of copper, zinc, iron and aluminium in the obtained solution was measured. The results were discussed.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 1; 143-147
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problems of Processing and Separation of Multi-Material Electronic Waste in Terms of Circular Economy
Autorzy:
Lisińska, M.
Fornalczyk, A.
Willner, J.
Powiązania:
https://bibliotekanauki.pl/articles/356622.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electronic waste
mobile phone
metals recovery
circular economy
Opis:
The article presents current methods used for the recovery of metals from used electronic equipment. The analysis of the composition and structure of the material was made on the example of one of the most popular and widespread e-waste - used cell phones. The article was address the problems of processing and separation of individual components included in these heterogeneous wastes. The main purpose of the conducted research was to prepare the tested material in such a way that the recovery of metalsin the further stages of its processing was as effective as possible. The results of attempts to separate individual material fractions with magnetic, pyrometallurgical or hydrometallurgical methods will be presented. An analysis of the possibilities of managing electronic waste in terms of the circular economy will be made.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1639-1643
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of waste heat recovery systems on energy efficiency improvement of a heavy-duty diesel engine
Autorzy:
Ma, Z.
Chen, H.
Zhang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/240819.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency design index
energy efficiency operational indicator
waste heat recovery system
performance analysis
reduction factor
wskaźnik efektywności energetycznej
wskaźniki eksploatacyjny efektywności energetycznej
system odzysku ciepła odpadowego
analiza wydajności
współczynnik redukcyjny
Opis:
The increase of ship’s energy utilization efficiency and the reduction of greenhouse gas emissions have been high lightened in recent years and have become an increasingly important subject for ship designers and owners. The International Maritime Organization (IMO) is seeking measures to reduce the CO2 emissions from ships, and their proposed energy efficiency design index (EEDI) and energy efficiency operational indicator (EEOI) aim at ensuring that future vessels will be more efficient. Waste heat recovery can be employed not only to improve energy utilization efficiency but also to reduce greenhouse gas emissions. In this paper, a typical conceptual large container ship employing a low speed marine diesel engine as the main propulsion machinery is introduced and three possible types of waste heat recovery systems are designed. To calculate the EEDI and EEOI of the given large container ship, two software packages are developed. From the viewpoint of operation and maintenance, lowering the ship speed and improving container load rate can greatly reduce EEOI and further reduce total fuel consumption. Although the large container ship itself can reach the IMO requirements of EEDI at the first stage with a reduction factor 10% under the reference line value, the proposed waste heat recovery systems can improve the ship EEDI reduction factor to 20% under the reference line value.
Źródło:
Archives of Thermodynamics; 2017, 38, 3; 63-75
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Recovery of Yttrium and Europium Compounds from Waste Materials
Odzysk związków itru i europu z surowców odpadowych
Autorzy:
Góralczyk, S.
Uzunow, E.
Powiązania:
https://bibliotekanauki.pl/articles/204909.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
recovery
yttrium
europium
waste materials
odzysk
ITR
europ
odpady
Opis:
Rare earth metals including yttrium and europium are one of several critical raw materials, the use of which ensures the development of the so-called high technology. The possibility of their recovery in Europe is limited practically only to secondary materials such as phosphogypsum and electronic waste. The article presents the results of our research concerning the development of recovery technology of yttrium and europium from luminophore CRT used lamps. It describes the principle of separation of elements and the test results of cleaning the concentrate. It was shown that the costs of preparing the concentrate according to the proposed technology are lower than the phosphogypsum processing technology and the composition of the resulting product does not contain hazardous substances.
Metale ziem rzadkich, w tym itr i europ należą do tej grupy kilkunastu surowców krytycznych, których stosowanie zapewnia rozwój w obszarze tzw. wysokich technologii. Możliwość ich pozyskiwania w Europie ogranicza się praktycznie do surowców wtórnych, np. fosfogipsów oraz zużytego sprzętu elektronicznego. W artykule przedstawiono wyniki badań autorów dot. opracowania technologii odzysku itru i europu z luminoforu zużytych lamp kineskopowych. Opisano zasady wydzielania pierwiastków i wyniki badań oczyszczania koncentratu. Wykazano, że koszty otrzymywania koncentratu wg proponowanej technologii są niższe od technologii przeróbki fosfogipsów, a otrzymany produkt nie zawiera substancji niebezpiecznych.
Źródło:
Archives of Environmental Protection; 2013, 39, 3; 107-114
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Acid Dissolution Conditions on Recovery of Valuable Metals from Used Plasma Display Panel Scrap
Autorzy:
Kim, C.- M.
Dharmaiah, P.
Kim, H.-S.
Koo, J.-M.
Yoon, J.-S.
Hong, S.-H.
Hong, S.-J.
Powiązania:
https://bibliotekanauki.pl/articles/355713.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high energy ball milling
waste plasma display panels
dissolution
recovery
Opis:
The objective of this particular study was to recover valuable metals from waste plasma display panels using high energy ball milling with subsequent acid dissolution. Dissolution of milled (PDP) powder was studied in HCl, HNO3, and H2SO4 acidic solutions. The effects of dissolution acid, temperature, time, and PDP scrap powder to acid ratio on the leaching process were investigated and the most favorable conditions were found: (1) valuable metals (In, Ag, Mg) were recovered from PDP powder in a mixture of concentrated hydrochloric acid (HCl:H2O = 50:50); (2) the optimal dissolution temperature and time for the valuable metals were found to be 60°C and 30 min, respectively; (3) the ideal PDP scrap powder to acid solution ratio was found to be 1:10. The proposed method was applied to the recovery of magnesium, silver, and indium with satisfactory results.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1173-1177
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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