Autor: Becker, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wykorzystanie popiołów poenergetycznych dla celów budowlanych
The use of ash generated in energy production for construction purposes
Autorzy:: Meyer, Z.
Coufal, R.
Szczygielski, T.
Becker, Z.
Powiązania:: https://bibliotekanauki.pl/articles/163597.pdf
Data publikacji:: 2012
Wydawca:: Polski Związek Inżynierów i Techników Budownictwa
Tematy:: popiół elektrowniany
wykorzystanie
mieszanka popiołowo-żużlowa
zastosowanie w budownictwie
wał przeciwpowodziowy
nasyp drogowy
power plant combustion ash
ashes utilization
ash-slag mix
application in construction
flood embankment
road embankment
Opis:: W referacie przedstawiono krótką charakterystykę fizyko-chemiczną i mechaniczną odpadów poenergetycznych z węgla kamiennego oraz wybrane ich zastosowania w budownictwie.
This paper presents a brief description of the physicochemical and mechanical characteristics of waste produced from bituminous coal burnt for energy production, and selected uses of such waste in the construction industry.
Źródło:: Przegląd Budowlany; 2012, R. 83, nr 5, 5; 23-26
0033-2038
Pojawia się w:: Przegląd Budowlany
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Direct measurements of reaction time for extractive processes
Autorzy:: Gotfryd, L.
Becker, K.
Pietek, G.
Szołomicki, Z.
Piwowonska, J.
Powiązania:: https://bibliotekanauki.pl/articles/109772.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: reaction time
solvent extraction
viscosity
stripping rate
sulphuric acid
Opis:: Extraction times for selected metal cations (Mg2+, Al3+, Zn2+, Cd2+, Cu2+, Ni2+, Co2+, Mn2+, Fe2+ and Fe3+) have been measured using cation-exchanging extractants - Versatic 10 (neodecanoic acid), DEHPA (bis(2-ethylhexyl)phosphoric acid) and Cyanex 272 (bis(2,4,4-trimetylpentyl)phosphinic acid). Data was collected directly by measuring and recording pH of the two phase reaction mixture with maintaining continuity of the aqueous phase. Similarly, the stripping rate of selected cations (Mg2+, Al3+, Zn2+, Cu2+, Ni2+, Co2+) in a sulphuric acid solution was measured. Viscosities of organic phases, saturated with cations, were measured before their stripping. Additionally, the extraction dependence of Mg2+, Al3+, Fe2+ and Fe3+ on pH was measured using Versatic 10 at various concentrations (7.5, 15 and 30 %).
Źródło:: Physicochemical Problems of Mineral Processing; 2016, 52, 2; 909-919
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Neodecanoic acid as extractant of selected non-ferrous metals
Autorzy:: Gotfryd, L.
Pietek, G.
Szołomicki, Z.
Becker, K.
Piwowońska, J.
Powiązania:: https://bibliotekanauki.pl/articles/109507.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: Versatic 10
neodecanoic acid
solvent extraction
non-ferrous metals
hydrometallurgy
Opis:: The paper presents results of studies on extracting properties of neodecanoic acid (Versatic 10) solutions. Neodecanoic acid was diluted in Exxsol D80 AZ to three concentrations: 7.5, 15, and 30 % (v/v). Tests were conducted using sulphate(VI) solutions of six ions: Zn(II), Ni(II), Cu(II), Co(II), Cd(II), Mn(II) and a nitrate(V) solution of Pb(II). All the aqueous solutions were prepared as 0.1 M concentration. For all combinations of the used solutions (organic and aqueous), direct methods of measuring and recording the pH of the biphasic mixture have been applied. The degrees of ions extraction, depending on equilibrium pH were also presented in the paper. Extraction and stripping isotherms of selected ions and organic phase were plotted for 7.5 and 30 % (v/v) of extractant solutions and Zn(II), Ni(II) and Cu(II) ions.
Źródło:: Physicochemical Problems of Mineral Processing; 2015, 51, 2; 435-445
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Recovery of major components of spent zinc electrolyte with di(2-ethylhexyl)phosphoric acid (DEHPA) used as a zinc(II) extractant
Autorzy:: Gotfryd, L.
Pietek, G.
Szołomicki, Z.
Becker, K.
Powiązania:: https://bibliotekanauki.pl/articles/951834.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: zinc electrolyte
zinc solvent extraction
DEHPA
mineral fertilizer
Opis:: Industrial acidic zinc electrolyte has been treated with calcium compounds and/or concentrated ammonia solution and resulting crystalline phases as well as equilibrium mother liquors were analyzed in detail for dependence on preliminary dilution of electrolyte with water. Neutralized zinc electrolyte was an object of investigation in zinc(II) extraction with di(2-ethylhexyl)phosphoric acid (DEHPA) as an extractant. Dependencies of zinc(II) and contaminants extraction on equilibrium pH, isotherms of zinc(II) extraction and stripping have been studied. During simulated laboratory counter-current trial of zinc extraction a new zinc electrolyte (stripped solution) has been produced. Raffinates left after the process were purified and qualified as mineral magnesium-ammonium fertilizer solutions.
Źródło:: Physicochemical Problems of Mineral Processing; 2014, 50, 1; 311-325
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: New upper Givetian to basal Frasnian conodont faunas from the Tafilalt (Anti-Atlas, Southern Morocco)
Autorzy:: Aboussalam, Z.S.
Becker, R.T.
Powiązania:: https://bibliotekanauki.pl/articles/2059516.pdf
Data publikacji:: 2007
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Morocco
Frasnes Event
Givetian
Frasnian
conodont taxonomy
conodont biostratigraphy
Opis:: Conodont faunas, mostly from previously unsampled sections of the Tafilalt (eastern Anti-Atlas, Morocco) and spanning the upper Givetian to basal Frasnian, include first records of species for the region and NW Gondwana as well as new taxa: "Ozarkodina" maroccanica n. sp., Polygnathus aequidivisus n. sp., Po. dengleri sagitta n. ssp., Po. jorfensis n. sp., Po. saevus n. sp., Po. tafilensis n. sp., and Schmidtognathus longicavus n. sp. The morphology of Tortodus subsymmetricus n. sp. suggests relation ships of Tortodus with Frasnian ancyrognathids. Other taxa are described in open nomenclature: Po. cristatus n. ssp., Icriodus aff. I. symmetricus, Skeletognathus aff. Sk. norrisi, and enigmatic supposed Pb elements (Gen. et sp. indet.). Ctenopolygnathus lanei Kuzmin (1995) is emended and distinctive morphotypes are recognized in Ct. angustidiscus and Po. collieri. Mesotaxis falsiovalis Sandberg et al. (1989) is a subjective junior synonym of the widely over looked M. guanwushanensis (Tian, 1988). There vised regional lithostratigraphy and conodont sequences allow to refine the upper Givetian zonation. The former Upper disparilis Zone is subdivided into succes sive Po. dengleri sagitta and Po. dengleri dengleri subzones. The basalmost Frasnian Ancyrodella rotundiloba pristina Zone (= MN 1 Zone) is preserved as a thin, condensed lime stone just at one locality (Bine Jebilet). The over lying Frasnes Event Beds (Lower Styliolinites) seem to fall in the subsequent Ad. rotundiloba soluta Zone (MN 2 Zone). Records of rare taxa, such as Po. paradecorosus, Po. Pollocki Morphotype 1, old est Po. webbi, Ct. angustidiscus, and Ct. lanei may be help ful for correlation into distant areas or shallower facies.
Źródło:: Geological Quarterly; 2007, 51, 4; 345-374
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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