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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">10.17073/0021-3438-2020-4-16-21</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1149</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>Двухстадийное солянокислое выщелачивание окисленной никелевой руды Серовского месторождения</article-title><trans-title-group xml:lang="en"><trans-title>Two-stage hydrochloric leaching of oxidized nickel ore of the Serovsky deposit</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>Колмачихина</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmachikhina</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент кафедры металлургии цветных металлов (МЦМ)</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate prof., Department of metallurgy of non-ferrous metals (MNFM)</p><p>620002,  Yekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">o.b.kolmachikhina@urfu.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>Маковская</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Makovskaya</surname><given-names>O. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент кафедры МЦМ</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate prof., Department of MNFM</p><p>620002, Yekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">o.i.makovskaia@urfu.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>Лобанов</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobanov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент кафедры МЦМ</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate prof., Department of MNFM</p><p>620002, Yekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">v.g.lobanov@urfu.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>Полыгалов</surname><given-names>С. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Polygalov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ассистент кафедры МЦМ</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Assistant lecturer, Department of MNFM</p><p>620002,  Yekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">sergey.polygalov@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет (УрФУ) имени первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University (UrFU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>14</day><month>08</month><year>2020</year></pub-date><volume>0</volume><issue>4</issue><fpage>16</fpage><lpage>21</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колмачихина О.Б., Маковская О.Ю., Лобанов В.Г., Полыгалов С.Э., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Колмачихина О.Б., Маковская О.Ю., Лобанов В.Г., Полыгалов С.Э.</copyright-holder><copyright-holder xml:lang="en">Kolmachikhina O.B., Makovskaya O.Y., Lobanov V.G., Polygalov S.E.</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/1149">https://cvmet.misis.ru/jour/article/view/1149</self-uri><abstract><p>В Уральском регионе сосредоточены значительные запасы окисленных никелевых руд как в крупных, так и в небольших месторождениях, которые разрабатываются открытым способом. Руда достаточно рыхлая, что делает стоимость добычи относительно невысокой. В то же время технологии, используемые на уральских никелевых заводах, не удовлетворяют требованиям энергосбережения и экологии и являются убыточными. В работе предложена двухстадийная гидрометаллургическая технология переработки окисленных никелевых руд Серовского месторождения. Исследована руда следующего состава, мас.%: 1,01 Ni, 0,031 Co, 15,32 Feобщ, 8,51 Al2O3, 21,76 MgO, 43,97 SiO2. Фазовый состав пробы установлен методом порошковой дифракции на рентгеновском дифрактометре XRD-7000 («Shimadzu», Япония). Основными никельсодержащими минералами идентифицированы серпентин Mg6[Ni, Si4O10](OH)8 и нимит (Ni, Mg, Al)6(Si, Al)4О10(OH)8. Никель входит в кристаллическую решетку силикатов, изоморфно замещая магний и железо, что существенно затрудняет вскрытие таких минералов гидрометаллургическим способом. Приведены результаты лабораторных исследований атмосферного выщелачивания руды соляной кислотой (на первой стадии) и автоклавного выщелачивания полученной пульпы (на второй) в зависимости от температуры, продолжительности выщелачивания и расхода кислоты. Суммарное (по двум стадиям) извлечение в раствор составило, мас.%: 82 Ni, 73,6 Co, 22 Fe, 22 Mg, 50,4 Al. Соляная кислота в данных условиях расходуется практически полностью – ее остаточная концентрация составила около 3 г/дм3 . Автоклавная пульпа обладает хорошей фильтруемостью. Состав кека после автоклавного выщелачивания, следующий, мас.%: 0,35 Ni, 0,01 Co, 12 Feобщ, 10,63 Mg, 1,2 Al, 55 SiО2.</p></abstract><trans-abstract xml:lang="en"><p>Significant reserves of oxidized nickel ores are concentrated in the Ural region, in the deposits of various sizes that are mined by open-pit method. Ore is rather loose, which makes the cost of production relatively low. At the same time, the technologies employed at Ural nickel plants fail to meet the energy conservation requirements, and they are environmentally unfriendly and unprofitable. The paper proposes a two-stage hydrometallurgical technology for processing oxidized nickel ores from the Serovsky deposit. The composition of investigated ore is, wt.%: 1.01 Ni, 0.031 Co, 15.32 Fetotal, 8.51 Al2O3, 21.76 MgO, 43.97 SiO2. The phase composition of the sample was determined by powder diffraction on the XRD-7000 X-ray diffractometer (Shimadzu, Japan). Serpentine Mg6[Ni, Si4O10](OH)8 and nimite (Ni, Mg, Al)6(Si, Al)4О10(OH)8 were identified as the main nickel-containing minerals. Nickel enters the crystal lattice of silicates and replaces magnesium and iron isomorphically, which significantly complicates the disintegration of such minerals by the hydrometallurgical method. The paper provides the results of laboratory studies into atmospheric ore leaching with hydrochloric acid at the first stage and autoclave leaching of the obtained slurry at the second stage depending on temperature, leaching time and acid consumption. The total (in two stages) extraction into the solution was, wt.%: 82 Ni, 73.6 Co, 22 Fe, 22 Mg, 50.4 Al. Hydrochloric acid is almost completely consumed under these conditions with residual acid concentration of about 3 g/dm3. The autoclave slurry has good filterability. Cake composition after autoclave leaching is as follows, wt.%: 0.35 Ni, 0.01 Co, 12 Fetotal, 10.63 Mg, 1.2 Al, 55 SiO2.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>окисленная никелевая руда</kwd><kwd>соляная кислота</kwd><kwd>автоклавное выщелачивание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oxidized nickel ore</kwd><kwd>hydrochloric acid</kwd><kwd>high-pressure leaching</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">Mudd G.M. Global trends and environmental issues in nickel mining: Sulfides versus laterites. Ore Geol. Rev. 2010, Vol. 38, P. 9—6. DOI: 10.1016/j.oregeorev.2010.05.003.</mixed-citation><mixed-citation xml:lang="en">Mudd G.M. Global trends and environmental issues in nickel mining: Sulfides versus laterites. Ore Geol. Rev. 2010, Vol. 38, P. 9—6. 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