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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">10.17073/0021-3438-2017-2-36-42</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-473</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>СОВЕРШЕНСТВОВАНИЕ ПРОЦЕССА ОСАЖДЕНИЯ ТРИСУЛЬФИДА МЫШЬЯКА ИЗ ПРОМЫВНЫХ ВОД СЕРНО-КИСЛОТНОГО ПРОИЗВОДСТВА МЕДЕПЛАВИЛЬНЫХ ЗАВОДОВ</article-title><trans-title-group xml:lang="en"><trans-title>Improvement of arsenic trisulfide precipitation from sulfuric acid production flush waters at copper works</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>Мамяченков</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mamyachenkov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. техн. наук, профессор кафедры металлургии тяжелых цветных металлов УрФУ (620002, Екатеринбург, ул. Мира, 19)</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor of the Department of metallurgy of heavy non-ferrous metals of Ural Federal University named after first President of Russia B.N. Yeltsin (620002, Russia, Yekaterinburg, Mira str., 19)</p></bio><email xlink:type="simple">svmamyachenkov@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>Анисимова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Anisimova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, доцент той же кафедры УрФУ</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate professor of the same Department</p></bio><email xlink:type="simple">osanis@mail.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>Костина</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostina</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка той же кафедры УрФУ</p></bio><bio xml:lang="en"><p>Student of the same Department</p></bio><email xlink:type="simple">dar.kostina@yandex.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 имени первого Президента России Б.Н. Ельцина» (УрФУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after first President of Russia B.N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>04</month><year>2017</year></pub-date><volume>0</volume><issue>2</issue><fpage>36</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мамяченков С.В., Анисимова О.С., Костина Д.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Мамяченков С.В., Анисимова О.С., Костина Д.А.</copyright-holder><copyright-holder xml:lang="en">Mamyachenkov S.V., Anisimova O.S., Kostina D.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/473">https://cvmet.misis.ru/jour/article/view/473</self-uri><abstract><p>Недостатками сульфидного метода очистки промывных вод серно-кислотного производства являются образование мелкодисперсных (размер частиц от 0,3 до 1,5 мкм) труднофильтруемых осадков сульфида мышьяка (III) и опасность выделения сероводорода в атмосферу при передозировке гидросульфида натрия. Исследован процесс коагуляции золей сульфида мышьяка для разработки более эффективной и быстрой технологии фильтрации осадка. Определены скорости фильтрации в различных режимах подачи гидросульфида натрия, рассмотрена зависимость скорости отстаивания и фильтрации от присутствия коагулянтов – сульфата железа и сульфата алюминия. Установлено, что реализация рассредоточенной подачи гидросульфида натрия при осаждении сульфида мышьяка в сочетании с применением неорганического коагулянта – сульфата железа (III) – позволит в несколько раз увеличить размеры частиц As2S3, а также повысить скорости фильтрации и отстаивания пульп.</p></abstract><trans-abstract xml:lang="en"><p>The sulfide method for purification of sulfuric acid production flush waters have such disadvantages as the formation of finely dispersed (0,3 to 1,5 μm particle size) difficult-to-filter precipitates of arsenic sulfide (III) and the risk of hydrogen sulfide release into the atmosphere in case of sodium hydrosulfide overdose. The article studies the process of arsenic sulfide sols coagulation in order to develop a more effective and fast precipitate filtration technology. The article determines filtering rates in various modes of sodium hydrosulfide feeding, and dependence of the settling and filtering rates on the presence of coagulants – iron sulfate and aluminum sulfate. It was found that the implementation of dispersed feeding of sodium hydrosulfide during the arsenic sulfide precipitation in combination with the use of inorganic coagulant – ferric sulfate (III) would make it possible to increase the size of As2S3 particles by several times, and to increase filtering and settling rates of pulps.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сульфид мышьяка</kwd><kwd>коагуляция</kwd><kwd>скорость фильтрации</kwd><kwd>сульфат железа</kwd><kwd>сульфат алюминия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>arsenic sulfide</kwd><kwd>coagulation</kwd><kwd>filtering rate</kwd><kwd>ferric sulfate</kwd><kwd>aluminum sulfate</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">Набойченко С.С., Мамяченков С.В., Карелов С.В. Мышьяк в цветной металлургии. 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