Please use this identifier to cite or link to this item: https://elib.belstu.by/handle/123456789/20923
Title: Nickel pigments preparation by spent nickel-plating electrolyte precipitation
Authors: Ashuiko, V. A.
Kandidatova, I. N.
Novikova, L. N.
Keywords: оксид никеля
фосфатосодержащие пигменты
отработанные растворы никелирования
электрохимическое осаждение
Issue Date: 2015
Publisher: BSTU
Citation: Ashuiko, V. A. Nickel pigments preparation by spent nickel-plating electrolyte precipitation / V. A. Ashuiko, I. N. Kandidatova, L. N. Novikova // Proceedings of BSTU. No. 3. – Minsk : BSTU, 2015. – P. 80-83
Description: A way to recycle spent waste sulfuric acid nickel electrolytes by nickel compounds extracting is offered and in this paper. The nickel (II) ions con centration was defined by chemical analysis and solid phase composition were determined by elemental analysis. Slightly soluble nickel (II) compounds were precipitated with sodium hydroxide solution and satu-rated sodium orthophosphate solution during boiling. Also waste degreasing solution containing sodium hydroxide, sodium carbonate and sodium phosphate was used. Nickel (II) ions extraction degree for degreasing solution precipitation was 97%, and for sodium hydroxide solution or sodium orthophosphate solution precipitation – 99.9%. For nickel (II) compo unds obtained X-ray analysis, elemental analysis and thermal analysis were carried out, their IR-abs orption spectra micrographs were obtained. Colored compounds obtained from waste electrolytes had various shades of green colour scheme and high concentration of chromofore ions. That made them possible for pigments producing. The precipitates obtained were dried, calcinated, milled, sifted and then used as pigment compositions.
URI: http://elib.belstu.by/handle/123456789/20923
Appears in Collections:2015, № 3

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