Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Witold A. Charewicz"'
Publikováno v:
Separation and Purification Technology. 81:237-242
Experimental studies were made on the solvent extraction of chromium(III) with Aliquat 336 from the protein hydrolyzate obtained by the alkaline hydrolysis of wastes of uncolored chromium-tanned leathers. The effects of NaOH concentration in the prot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e46f2c2de629204c22c347bd2aa767f
https://doi.org/10.1016/j.seppur.2011.07.024
https://doi.org/10.1016/j.seppur.2011.07.024
Autor:
Witold A. Charewicz
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 23:743-749
Efficiency and intensity of the flotation of isostructural, tetrahedral oxyanions with the cationic (R)4N+ type surfactant were examined, exemplified by the case of the diluted aqueous solutions of phosphorus(v), molybdenum(vi) and rhenium(vii) at co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ca955cf734f80ffcd9a5a4391098bff
https://doi.org/10.1002/jctb.5020231006
https://doi.org/10.1002/jctb.5020231006
Autor:
Jerzy Strzelbicki, Witold A. Charewicz
Publikováno v:
Journal of Chemical Technology and Biotechnology. 29:149-153
An experimental investigation is presented on the recovery of cationic [dimethyl-benzyldodecylammonium bromide (DMBDA-Br)] and anionic [sodium dodecyl-benzylsulphonate (Na-DBS)] surfactants from foam separation and precipitate flotation concentrates.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6be2704946f7d91b13e4201c35fd9a6
https://doi.org/10.1002/jctb.503290305
https://doi.org/10.1002/jctb.503290305
Autor:
Sergiusz Basak, Witold A. Charewicz
Publikováno v:
Journal of Chemical Technology & Biotechnology. 36:74-78
Flotation of copper hydroxide precipitate has been investigated at total initial copper concentration 10−2M with sodium dodecylbenzenesulphonate (DBSNa) and dodecyldimethylbenzylammonium bromide (DDMBABr), both at initial concentration 10−4M. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dea24a357a663ccebdb5240228c66bc
https://doi.org/10.1002/jctb.280360206
https://doi.org/10.1002/jctb.280360206
Autor:
Sergiusz Basak, Witold A. Charewicz
Publikováno v:
Journal of Chemical Technology and Biotechnology. 32:407-411
An experimental kinetic study has been completed on precipitate flotation of Zn(II), Co(II) and Cu(II) hydroxides (initial metal concentration 1 × 10−-2M) with the anionic surfactant, sodium dodecyl benzenesulphonate (1 × 10−-4M), at varying eq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17b04cf98ffc48c9d313ca91d68c4e9f
https://doi.org/10.1002/jctb.5030320207
https://doi.org/10.1002/jctb.5030320207
Autor:
Sergiusz Basak, Witold A. Charewicz
Publikováno v:
Journal of Chemical Technology & Biotechnology. 36:557-561
Flotation of zinc and cobalt hydroxide precipitates was investigated at total initial metal concentrations of 1 × 10−2 M with sodium dodecylbenzenesulphonate (DBSNa) and dodecyldimethylbenzylammonium bromide (DDMBABr), both at initial concentratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94316421ddbe697151fe36936f394e87
https://doi.org/10.1002/jctb.280361203
https://doi.org/10.1002/jctb.280361203
Publikováno v:
Journal of Chemical Technology & Biotechnology. 52:119-126
Process of rhenium removal from acidic industrial effluents by pressure reduction with gaseous hydrogen and sulphur dioxide was examined. Solutions from two sources were investigated, namely: circulating wash liquors originated from a wet dedusting o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d65c6c3b2c1c49f508e3cc04fc78c76f
https://doi.org/10.1002/jctb.280520109
https://doi.org/10.1002/jctb.280520109
Publikováno v:
Hydrometallurgy. 82:83-92
Studies are reported on the recovery of chromium(III) from industrial spent tanning liquors by liquid–liquid extraction with trioctyl methylammonium chloride (Aliquat 336), sulphate, and hydroxide. The optimal conditions of extraction of chromium(I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d0dd2f2a7ef3307b10e710d4c54176e
https://doi.org/10.1016/j.hydromet.2006.03.055
https://doi.org/10.1016/j.hydromet.2006.03.055
Autor:
Sadik Elshani, Wladyslaw Walkowiak, Witold A. Charewicz, Malgorzata A. Wegiel, Katarzyna Walus, Richard A. Bartsch
Publikováno v:
Separation Science and Technology. 40:1673-1683
Twelve lipophilic, acyclic polyethers, each with two terminal N‐(X)sulfonyl carboxamate groups, are found to efficiently extract Ra(II) and Ba(II) at radiotracer levels from aqueous solution into chloroform. With the presence of Ba(II) carrier in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::076b030b6afa675d7c33be31316fc37f
https://doi.org/10.1081/ss-200059594
https://doi.org/10.1081/ss-200059594
Autor:
Jerzy Wódka, Witold A. Charewicz
Publikováno v:
Surface and Coatings Technology. 126:232-237
Preparation of nickel-coated composite powders is presented by pressure reduction with hydrogen of aqueous Ni(II) from acetate feed solutions containing various base powders (graphite, tungsten carbide, and aluminium). Particularly, the effect of maj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7aded0cf98a4e06977e2bb6a23c04ff8
https://doi.org/10.1016/s0257-8972(00)00543-0
https://doi.org/10.1016/s0257-8972(00)00543-0