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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2020-3-13-22</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1128</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Металлургия цветных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy of Non-Ferrous Metals</subject></subj-group></article-categories><title-group><article-title>Исследование влияния на электрохимическое поведение сульфида никеля состава электролита и депассивирующих добавок</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the effect of electrolyte composition and nickel depassivating additives on the electrochemical behavior of nickel sulfide</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесников</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnikov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, старший научный сотрудник Департамента науки и производства ЮКГУ им. М. Ауэзова, наусный руководитель грантового проекта АР 05132500 ГУ МОН РК.</p><p>160012, Шымкент, пр-т Тауке хана, 5</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), senior research scientist of the Department of science and production M. Auezov SKSU</p></bio><email xlink:type="simple">kas164@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Наторхин</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Natorhin</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат химических наук, наусный сотрудник С-ПГТИ, старший научный сотрудник грантового проекта АР 05132500 ГУ МОН РК Департамента науки и производства ЮКГУ им. М. Ауэзова.</p><p>190013, Санкт-Петербург, Московский пр., 25</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), research scientist of Saint-Petersburg SIT, senior research scientist of grant project AP 05132500 GU MES RK M. Auezov SKSU.</p><p>190013, St. Petersburg, Moskovskii ave., 26</p></bio><email xlink:type="simple">maxim.torin@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Теруков</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Terukov</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор технических наук, профессор ФТИ им. А.Ф. Иоффе РАН, ведущий научный сотрудник грантового проекта АР 05132500 ГУ МОН РК Департамента науки и производства ЮКГУ им. М. Ауэзова.</p><p>194021, Санкт-Петербург, ул. Политехническая, 26</p></bio><bio xml:lang="en"><p>Dr. Sci. (Tech.), prof. Ioffe PTI, leading researcher of grant project AP 05132500 GU MES RK of the Department of science and production of M. Auezov SKSU.</p><p>194021, St. Petersburg, Politekhnicheskaya str., 26</p></bio><email xlink:type="simple">e.terukov@hevelsolar.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суйгенбаева</surname><given-names>А. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Suigenbaeva</surname><given-names>A. Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, старший научный сотрудник грантового проекта АР 05132500 ГУ МОН РК Департамента науки и производства ЮКГУ им. М. Ауэзова</p></bio><bio xml:lang="en"><p>Cand. Sci. (Tech.), senior research scientist of grant project AP 05132500 GU MES RK of the Department of science and production of M. Auezov SKSU.</p><p>160012, Shymkent, Tauke Khan ave., 5</p></bio><email xlink:type="simple">S_a_g@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саипов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Saipov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Research scientist of grant project AP 05132500 GU MES RK of the Department of science and production of M. Auezov SKSU.</p><p>160012, Shymkent, Tauke Khan ave., 5</p></bio><email xlink:type="simple">abdilla.s.a@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Южно-Казахстанский государственный университет (ЮКГУ) им. М. Ауэзова</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>M. Auezov South Kazakhstan State University</institution><country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургского государственного технологического института (технического университета; Южно-Казахстанский государственный университет (ЮКГУ) им. М. Ауэзова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State Institute of Technology; M. Auezov South Kazakhstan State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Физико-технического института им. А.Ф. Иоффе РАН; Южно-Казахстанский государственный университет (ЮКГУ) им. М. Ауэзова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ioffe Physical and Technical Institute; M. Auezov South Kazakhstan State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>15</day><month>06</month><year>2020</year></pub-date><volume>0</volume><issue>3</issue><fpage>13</fpage><lpage>22</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колесников А.С., Наторхин М.И., Теруков Е.И., Суйгенбаева А.Ж., Саипов А.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Колесников А.С., Наторхин М.И., Теруков Е.И., Суйгенбаева А.Ж., Саипов А.А.</copyright-holder><copyright-holder xml:lang="en">Kolesnikov A.S., Natorhin M.I., Terukov E.I., Suigenbaeva A.Z., Saipov A.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://cvmet.misis.ru/jour/article/view/1128">https://cvmet.misis.ru/jour/article/view/1128</self-uri><abstract><p>Рассмотрены вопросы гидрометаллургической технологии переработки сульфида никеля (NiS), в частности влияния состава электролита и депассивирующих добавок на электрохимическое поведение синтезированного сульфида никеля. Проведены исследования кинетики и электрохимического поведения сульфида никеля в сульфатных, сульфитных, хлоридных, бихроматных, аммиачных и медьсодержащих электролитах. Показаны возможные направления течения процесса анодного растворения сульфида никеля с выделением элементной серы и сульфидов, способствующих пассивации поверхности. Изучено депассивирующее влияние на процесс добавок, в частности NaCl, KBr и K2Cr2O7. По результатам исследований установлено следующее: бихромат калия депассивирующе воздействует на процесс анодного растворения NiS в Na2SO4 и NH4OH; оптимальная концентрация бихромата калия находится в области —ласти ≈30 г/дм3; при растворении NiS в присутствии K2Cr2O7  происходит окисление сульфидной серы до SO2-4; в чистом растворе Na2SO3 наблюдается интенсивное растворение NiS, сопровождающееся образованием нерастворимых гидроксосоединений Ni2+, состав которых меняется с изменением рН; совместное действие NH4OH и Na2SO3 вызывает интенсивное растворение NiS с образованием аммиачных комплексов [Ni(NH3)n]2+;  наличие в медьсодержащих электролитах анионов кислот, способных к комплексообразованию как с Cu(I), так и с Cu(II), приводит к ускорению анодного растворения NiS; самые значительные скорости анодного растворения NiS наблюдаются в случае нитратно-бромидной системы; образующаяся на поверхности NiS расплавленная сера полностью вытесняет, а медно-бромидные комплексы растворяют возникающую при низких потенциалах пленку CU2S; при добавках 200 г/дм3 KBr к 96,8 г/дм3 Cu(NO3)2 наблюдаются большие скорости растворения NiS, чем в случае добавки 200 г/дм3 NaCl к раствору 67,22 г/дм3 CuCl2.</p></abstract><trans-abstract xml:lang="en"><p>This article deals with the hydrometallurgical technology of nickel sulfide (NiS) processing, in particular, the effect of electrolyte composition and depassivating additives on the electrochemical behavior of synthesized nickel sulfide. The kinetics and electrochemical behavior of nickel sulfide in sulfate, sulfite, chloride, bichromate, ammonia and copper-containing electrolytes were studied. Possible directions of the process of nickel sulfide anodic dissolution with the release of elemental sulfur and sulfides that contribute to surface passivation were shown. The depassivating effect of additives, in particular NaCl, KBr and K2Cr2O7 was also studied. The results of studies suggest that: potassium bichromate has a depassivating effect on NiS anodic dissolution in Na2SO4 and NH4OH; the optimum concentration of potassium bichromate is around ≈30 g/dm3; sulfide sulfur oxidizes to SO2 4- with NiS dissolution in the presence of K2Cr2O7; NiS intensively dissolves in the pure Na2SO3 solution with the formation of insoluble Ni2+ hydroxy compounds featuring structure changes with changing pH; the combined action of NH4OH and Na2SO3 causes intensive NiS dissolution with the formation of [Ni(NH3)n]2+ ammonia complexes; the presence of acid anions capable of complexation with both Cu(I) and Cu(II) in copper-containing electrolytes leads to accelerated NiS anode dissolution; the most significant anode dissolution rates are observed in case of a nitrate-bromide system; molten sulfur formed on the NiS surface completely displaces, and copper-bromide complexes dissolve the Cu2S film formed at low potentials; when 200 g/dm3 of KBr is added to 96.8 g/dm3 of Cu (NO3)2, greater NiS dissolution rates are observed than when 200 g/dm3 of NaCl is added to 67,22 g/dm3 of the CuCl2 solution.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидрометаллургия</kwd><kwd>сульфид никеля</kwd><kwd>электрохимическое поведение</kwd><kwd>депассивирующие добавки</kwd><kwd>электролит</kwd><kwd>элементная сера</kwd><kwd>металлы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrometallurgy</kwd><kwd>nickel sulfide</kwd><kwd>electrochemical behavior</kwd><kwd>depassivating additives</kwd><kwd>electrolyte</kwd><kwd>elemental sulfur</kwd><kwd>metals</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Резник И.Д., Ермаков Г.П., Шнеерсон Я.М. 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