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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/pmi.2020.2.202</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13335</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13335</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Металлургия и обогащение</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Metallurgy and concentration</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Flotation extraction of elemental sulfur from gold-bearing cakes</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Флотационное выделение элементарной серы из золотосодержащих кеков</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Ivanik</surname>
            <given-names>Svetlana A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Иваник</surname>
              <given-names>С. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ivanik</surname>
              <given-names>Svetlana A.</given-names>
            </name>
          </name-alternatives>
          <email>Ivanik_SA@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0003-3477-8382</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Санкт-Петербург, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Saint Petersburg, Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Ilyukhin</surname>
            <given-names>Dmitrii A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Илюхин</surname>
              <given-names>Д. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ilyukhin</surname>
              <given-names>Dmitrii A.</given-names>
            </name>
          </name-alternatives>
          <email>ilyukhin_da@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0001-8469-334X</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Санкт-Петербург, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Saint Petersburg, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2020-04-24">
        <day>24</day>
        <month>04</month>
        <year>2020</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2020</year>
      </pub-date>
      <volume>242</volume>
      <fpage>202</fpage>
      <lpage>208</lpage>
      <history>
        <date date-type="received" iso-8601-date="2018-09-12">
          <day>12</day>
          <month>09</month>
          <year>2018</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-01-05">
          <day>05</day>
          <month>01</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2020-04-24">
          <day>24</day>
          <month>04</month>
          <year>2020</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2020 С. А. Иваник, Д. А. Илюхин</copyright-statement>
        <copyright-statement xml:lang="en">© 2020 Svetlana A. Ivanik, Dmitrii A. Ilyukhin</copyright-statement>
        <copyright-year>2020</copyright-year>
        <copyright-holder xml:lang="ru">С. А. Иваник, Д. А. Илюхин</copyright-holder>
        <copyright-holder xml:lang="en">Svetlana A. Ivanik, Dmitrii A. Ilyukhin</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/13335">https://pmi.spmi.ru/pmi/article/view/13335</self-uri>
      <abstract xml:lang="ru">
        <p>В настоящее время в развитии сырьевой базы золотодобывающей промышленности наблюдается тенденция снижения качества исходного минерального сырья в связи с истощением запасов богатых золотосодержащих руд. В статье рассмотрена технология вскрытия упорных золотосодержащих концентратов на основе низкотемпературного выщелачивания пиритного концентрата. Снижение параметров процесса автоклавного окисления сульфидных минералов, таких как пирит и арсенопирит, приводит к неполному извлечению золота в раствор и, соответственно, его потерям при последующем цианировании. В качестве возможного варианта более полного извлечения золота по низкотемпературной окислительной технологии предложен метод флотационного выделения элементарной серы из кеков выщелачивания. По принципиальной технологической схеме процесс флотации с целью доизвлечения золота проводится после автоклавного окисления, но перед проведением цианирования. Проведена серия опытов при варьировании реагентного режима и установлена зависимость потерь золота от извлечения элементарной серы в хвостах флотации. В качестве определяющих факторов учитывались рН и содержание твердого в исходной пульпе. Обоснован механизм выделения элементарной серы из автоклавного кека в обогащенный серный концентрат. Исследованы режимы флотации кека после автоклавного окислительного выщелачивания пиритного концентрата. Распределение элементарной серы и золота по продуктам флотации дает возможность проведения процесса цианирования хвостов с приемлемыми показателями.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Currently, in the development of the raw materials base of the gold mining industry, there is a tendency to reduce the quality of the initial mineral raw materials due to the depletion of reserves of rich gold-bearing ores. The article discusses the technology of extraction of refractory gold-bearing concentrates based on low-temperature leaching of pyrite concentrate. A decrease in the parameters of the autoclave oxidation of sulfide minerals, such as pyrite and arsenopyrite, leads to the incomplete extraction of gold into the solution and, consequently, its losses during subsequent cyanidation. As a possible option for a more complete extraction of gold using low-temperature oxidation technology, a method of flotation separation of elemental sulfur from leaching cakes is proposed. According to the basic process flow chart, the flotation process designed for gold extraction is carried out after autoclave oxidation, but before cyanidation. A series of experiments were carried out with varying reagent conditions and the dependence of gold losses on the extraction of elemental sulfur in the flotation tailings was established. As determining factors, pH and solid content in the initial pulp were considered. The paper justifies the separation of elemental sulfur from autoclave cake to enriched sulfur concentrate. The cake flotation modes after autoclave oxidative leaching of pyrite concentrate are investigated. The distribution of elemental sulfur and gold by flotation products makes it possible to conduct the tailings cyanidation process with acceptable indicators.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>Золотосодержащий пиритный концентрат</kwd>
        <kwd>тонковкрапленное золото</kwd>
        <kwd>низкотемпературное выщелачивание</kwd>
        <kwd>элементарная сера</kwd>
        <kwd>флотация</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>gold-bearing pyrite concentrate</kwd>
        <kwd>finely disseminated gold</kwd>
        <kwd>low-temperature leaching</kwd>
        <kwd>elemental sulfur</kwd>
        <kwd>flotation</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
