Investigation of the process of precipitation of arsenic from copper electrolyte with manganese oxide (IV)

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dc.contributor.author Omarov, Kh.B.
dc.contributor.author Aldabergenova, S.K.
dc.contributor.author Muzapparov, A.A.
dc.contributor.author Absat, Z.B.
dc.contributor.author Rakhimzhanova, N.Zh.
dc.date.accessioned 2018-06-14T09:07:08Z
dc.date.available 2018-06-14T09:07:08Z
dc.date.issued 2018-03-30
dc.identifier.citation Investigation of the process of precipitation of arsenic from copper electrolyte with manganese oxide (IV)/Kh.B. Omarov [et al]//Қарағанды универисетінің хабаршысы. ХИМИЯ Сериясы.=Вестник Карагандинского университета. Серия ХИМИЯ.=Bulletin of the Karaganda University. CHEMISTRY Series.-2018. №1.Р.83-91. ru_RU
dc.identifier.uri http://rep.ksu.kz/handle/data/3216
dc.description.abstract The work is aimed at researching the process of depositing arsenic from copper electrolyte with manganese oxide (IV) using the method of stochastic determinated design of experiments on four levels. The chosen factors are: the frequency of dispensing of the precipitant; the ratio of precipitant to arsenic; the temperature of process; concentration of sulfuric acid; duration of experiment. Analysis of the partial dependencies of arsenic deposition showed that the increase in the amount of precipitant and the duration of the experiment had a significant influence on the course of the process. IR spectroscopy of precipitation showed the presence of arsenate ions AsO4 3– in them. The kinetic curve of the differential-thermal analysis of the solid sediment characterizes the process of its destruction as a step-wise process — the removal of crystallizated water (from 250 ºС to 350 ºС), the decomposition of manganese hydroarsenate (from 470 ºС to 630 ºС) and manganese arsenate (from 690 ºС to 900 ºС). It is established that the process of formation of manganese arsenate is a result of parallel reactions of interaction of sulfate ions with manganese ions with the formation of a sulfate complex, interaction of the manganese sulphate complex with arsenate ions with the formation of manganese hydroarsenate, and the transition of hydroarsenate to manganese arsenate. ru_RU
dc.language.iso en ru_RU
dc.publisher KSU Publ. ru_RU
dc.relation.ispartofseries Қарағанды универисетінің хабаршысы. ХИМИЯ Сериясы.=Вестник Карагандинского университета. Серия ХИМИЯ.=Bulletin of the Karaganda University. CHEMISTRY Series.;№ 1(89)/2018
dc.subject copper electrolyte ru_RU
dc.subject manganese oxide (IV) ru_RU
dc.subject arsenic ru_RU
dc.subject arsenates ru_RU
dc.subject hydroarsenate ru_RU
dc.subject manganese arsenate ru_RU
dc.subject stochastic determinateddesign of experiments ru_RU
dc.title Investigation of the process of precipitation of arsenic from copper electrolyte with manganese oxide (IV) ru_RU
dc.title.alternative Мыс электролитінен марганец (IV) тотығымен күшəланы тұндыру үрдісін зерттеу ru_RU
dc.title.alternative Исследование процесса осаждения мышьяка из медного электролита оксидом марганца (IV) ru_RU
dc.type Article ru_RU


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