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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">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2020-5-1105-1112</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-440</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 И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGY AND MATERIALS SCIENCE</subject></subj-group></article-categories><title-group><article-title>Оценка возможности переработки техногенного сырья с применением ультранизких концентраций цианистого натрия</article-title><trans-title-group xml:lang="en"><trans-title>Assessing possibility of technogenic raw material processing using ultra-low concentrations of sodium cyanide</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>Василькова</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilkova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василькова Анастасия Олеговна, аспирант, младший научный сотрудник Лаборатории гидрометаллургии</p><p>664011, г. Иркутск, б-р Гагарина, 38 </p></bio><bio xml:lang="en"><p>Anastasia O. Vasilkova, Postgraduate Student, Junior Researcher of the Laboratory of Hydrometallurgy</p><p>38, Gagarin Blvd, Irkutsk 664011 </p></bio><email xlink:type="simple">anastasiya.perepelkina.94@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>Бывальцев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Byvaltsev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бывальцев Александр Владимирович, кандидат технических наук, ведущий научный сотрудник Лаборатории гидрометаллургии</p><p>664011, г. Иркутск, б-р Гагарина, 38 </p></bio><bio xml:lang="en"><p>Alexander V. Byvaltsev, Cand. Sci. (Eng.), Leading Researcher of the Laboratory of Hydrometallurgy</p><p>38, Gagarin Blvd, Irkutsk 664011 </p></bio><email xlink:type="simple">torrot_2008@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>Хмельницкая</surname><given-names>О. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Khmelnitskaya</surname><given-names>O. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хмельницкая Ольга Давыдовна, кандидат технических наук, заведующая Лабораторией гидрометаллургии</p><p>664011, г. Иркутск, б-р Гагарина, 38 </p></bio><bio xml:lang="en"><p>Olga D. Khmelnitskaya, Cand. Sci. (Eng.), Head of the Laboratory of Hydrometallurgy</p><p>38, Gagarin Blvd, Irkutsk 664011 </p></bio><email xlink:type="simple">lab15@irgiredmet.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>Войлошников</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Voiloshnikov</surname><given-names>G. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Войлошников Григорий Иванович, доктор технических наук, профессор, заместитель директора по научной работе и инновациям</p><p>664011, г. Иркутск, б-р Гагарина, 38 </p></bio><bio xml:lang="en"><p>Grigory l. Voiloshnikov, Dr. Sci. (Eng.), Professor, Deputy Director for Research and Innovation</p><p>38, Gagarin Blvd, Irkutsk 664011 </p></bio><email xlink:type="simple">greg@irgiredmet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АО «Иргиредмет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irgiredmet JSC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2020</year></pub-date><volume>24</volume><issue>5</issue><fpage>1105</fpage><lpage>1112</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Василькова А.О., Бывальцев А.В., Хмельницкая О.Д., Войлошников Г.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Василькова А.О., Бывальцев А.В., Хмельницкая О.Д., Войлошников Г.И.</copyright-holder><copyright-holder xml:lang="en">Vasilkova A.O., Byvaltsev A.V., Khmelnitskaya O.D., Voiloshnikov G.l.</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://ipolytech.elpub.ru/jour/article/view/440">https://ipolytech.elpub.ru/jour/article/view/440</self-uri><abstract><p>Цель – проведение опытов с целью определения возможности цианирования техногенного золотосодержащего сырья при использовании NaCN ультранизких концентраций. Были проведены опыты по цианированию трех проб техногенного сырья различного состава. Первая проба – пиритные огарки (Au – 1,8–2,3 г/т, Ag – 13–22 г/т, Fe – 48,52%, Cu – 0,15–0,30%, Zn – 0,3–0,6%). Второй пробой явились лежалые хвосты медно-цинковой флотации (проба I) с содержанием Au – 0,8 г/т, Ag – 7,0 г/т, Fe – 17,2%, Cu – 0,212%, Zn – 0,207%. Следующим объектом явились медно-цинковые хвосты флотации обогатительной фабрики (проба II), в которых Au – 1,22 г/т, Ag – 15,2 г/т, Cu – 0,13%, Zn – 0,23%. В качестве предварительной обработки пиритных огарков была рекомендована водная отмывка от цветных металлов с последующей известковой обработкой. Цианирование проводили при разных расходах реагента: от 0,075 до 3 кг/т. Опыты показали, что в данном диапазоне расхода NaCN извлечение золота варьировалось от 42,9 до 44,2%, кроме того, уменьшение расхода реагента позволило снизить концентрацию ионов цветных металлов в растворах цианирования. Перед цианированием проба I также подвергалась водной отмывке от кислоты и цветных металлов; расход NaCN варьировался от 0,25 до 2,2 кг/т. Извлечение золота при этом составило 36,6–46,4%. Цианирование хвостов (проба II) проводили в диапазоне 0,15–1,2 кг/т NaCN. Извлечение золота варьировалось от 24,1 до 30,9%. Технология цианирования техногенного сырья в области ультранизких концентраций цианистого натрия является перспективной, так как обеспечивает приемлемое извлечение золота при низком расходе реагента. Для дальнейших исследований в качестве перспективного объекта по разработке технологии извлечения ценных компонентов были выбраны хвосты флотации медноцинкового производства (проба II). Планируется провести полупромышленные испытания, расчет техникоэкономических показателей и разработку технологического регламента.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the study is to conduct experiments in order to determine the possibility of technogenic goldbearing raw material cyanidation using ultra-low concentrations of NaCN. Experiments are carried out on the cyanidation of three samples of technogenic raw materials of different composition. The first sample consists of pyrite cinders (Au – 1.8-2.3 g/t, Ag – 13-22 g/t, Fe – 48.52%, Cu – 0.15-0.30%, Zn – 0.3–0.6%). The second sample is represented by the aged tailings of copper-zinc flotation (sample I) with the content of Au – 0.8 g/t, Ag – 7.0 g/t, Fe – 17.2%, Cu – 0.212%, Zn – 0.207%. The next object is the copper-zinc flotation tailings of a concentration plant (sample II), with the following content of Au – 1.22 g/t, Ag – 15.2 g/t, Cu – 0.13%, Zn – 0.23%. It is recommended to use an aqueous wash from nonferrous metals with subsequent lime treatment as a preliminary processing of pyrite cinders. Cyanidation is carried out at different consumptions of reagent: from 0.075 to 3 kg/t. The experiments have shown that gold recovery in this range of NaCN consumption varies from 42.9 to 44.2%; moreover, a decrease in the reagent consumption allows to reduce the concentration of non-ferrous metal ions in cyanidation solutions. Before cyanidation sample I has also been subjected to aqueous wash to remove acid and non-ferrous metals. NaCN consumption varies from 0.25 to 2.2 kg/t. In this case the extraction of gold amounts to 36.6–46.4%. Cyanidation of tailings (sample II) is carried out in the range of 0.15–1.2 kg/t of NaCN. Gold recovery varies from 24.1 to 30.9%. The cyanidation technology of technogenic raw materials in the field of ultra-low concentrations of sodium cyanide is promising, since it provides acceptable gold recovery under low reagent consumption. For further research in the field of development of an extraction technology of valuable components, the flotation tailings of copper-zinc production (sample II) are chosen as a promising object. It is planned to carry out semiindustrial tests, calculate technical and economic indicators and develop process regulations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>металлургия благородных металлов</kwd><kwd>цианирование</kwd><kwd>переработка техногенного сырья</kwd><kwd>низкие концентрации цианида натрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>precious metals metallurgy</kwd><kwd>cyanidation</kwd><kwd>recycling of technogenic raw materials</kwd><kwd>low concentrations of sodium cyanide</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">Коннова Н.И., Пехова Л.П., Титовская А.И. Переработка лежалых хвостов и отвалов горнообогатительных предприятий // Современные технологии освоения минеральных ресурсов: сб. статей III Междунар. конф. (Лимасол, 28 апреля 2005 г.). Лимасол, 2005. 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