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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.2021.2.10</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-14762</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/14762</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">Increasing the efficiency of phosphate ore processing  using flotation method</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Повышение эффективности переработки фосфатных руд  флотационным методом</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Aleksandrova</surname>
            <given-names>Tatyana N.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Александрова</surname>
              <given-names>Т. Н.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Aleksandrova</surname>
              <given-names>Tatyana N.</given-names>
            </name>
          </name-alternatives>
          <email>alexandrovat10@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0002-3069-0001</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" corresp="yes">
          <name name-style="eastern">
            <surname>Elbendari</surname>
            <given-names>Abdalla M.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Элбендари</surname>
              <given-names>А. М.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Elbendari</surname>
              <given-names>Abdalla M.</given-names>
            </name>
          </name-alternatives>
          <email>abdullah_elbendary@yahoo.com</email>
          <contrib-id contrib-id-type="orcid">0000-0003-1882-7885</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="2021-06-24">
        <day>24</day>
        <month>06</month>
        <year>2021</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2021</year>
      </pub-date>
      <volume>248</volume>
      <fpage>260</fpage>
      <lpage>271</lpage>
      <history>
        <date date-type="received" iso-8601-date="2021-03-12">
          <day>12</day>
          <month>03</month>
          <year>2021</year>
        </date>
        <date date-type="accepted" iso-8601-date="2021-04-12">
          <day>12</day>
          <month>04</month>
          <year>2021</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2021-06-24">
          <day>24</day>
          <month>06</month>
          <year>2021</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2021 Т. Н. Александрова, А. М. Элбендари</copyright-statement>
        <copyright-statement xml:lang="en">© 2021 Tatyana N. Aleksandrova, Abdalla M. Elbendari</copyright-statement>
        <copyright-year>2021</copyright-year>
        <copyright-holder xml:lang="ru">Т. Н. Александрова, А. М. Элбендари</copyright-holder>
        <copyright-holder xml:lang="en">Tatyana N. Aleksandrova, Abdalla M. Elbendari</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/14762">https://pmi.spmi.ru/pmi/article/view/14762</self-uri>
      <abstract xml:lang="ru">
        <p>Представлена флотация двух образцов фосфатных руд разного происхождения. Статистический анализ был использован для исследования влияния рабочих параметров, действующих на эффективность флотации. В работе предложено повысить эффективность флотационного обогащения фосфатной руды магматического происхождения с низким содержанием полезного компонента (P2O5 = 10,88 %), содержащей нефелин и полевые шпаты, с помощью прямой анионной флотации. Представлена оптимизация анионной флотации с использованием смешанных жирных кислот таллового масла с анионным фосфоланом в качестве анионного собирателя.Исследовано влияние добавления кальцинированной соды для компенсации действия катионов кальция на технологические показатели флотации P2O5. Результаты исследования флотации нефелиновой руды (хвосты флотации фосфатной руды магматического происхождения) показали, что замена фосфолана на оксиэтилированный изотридеканол позволяет получить высококачественный концентрат. Установлено, что с добавлением Na2CO3 в количестве 2000 г/т был получен концентрат с содержанием и извлечением пятиокиси фосфора, равный 39,15 и 94,19 % соответственно. В работе предложено повысить эффективность флотационного обогащения фосфатной руды осадочного происхождения с низким содержанием полезного компонента (P2O5 = 22,5 %), содержащей гипс и кварц, путем обесшламливания с последующей анионной или катионной обратной флотацией. Жирная кислота таллового масла с анионным фосфоланом использовалась в качестве собирателя при анионной обратной флотации, а амин – при катионной обратной флотации. Триполифосфат натрия применялся в качестве депрессора P2O5. Обнаружено, что он является эффективным депрессором как при анионной, так и катионной обратной флотации. При анализе статистического плана, было установлено, что максимальное содержание полезного компонента в концентрате (P2O5 = 31,23 %) и извлечение в концентрат 95,22 % были получены в камерном продукте при расходе амина 950,88 и триполифосфат натрия 500 г/т.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The paper presents flotation of two phosphate ore samples of different origin. Statistical analysis was used to study the effect of operating parameters on flotation efficiency. The paper proposes to increase the efficiency of flotation processing of magmatic phosphate ore with a low grade of the valuable component (P2O5 = 10.88 %), containing nepheline and feldspars, by means of direct anionic flotation. Authors present an optimization of anionic flotation using tall oil fatty acids mixed with anionic phospholane as an anionic collector. The effect of adding soda ash to compensate for the influence of calcium cations on technological parameters of P2O5 flotation was examined. The results of studying the flotation of nepheline ore (flotation tailings of magmatic phosphate ore) showed that replacement of phospholane with oxyethylated isotridecanol allowed to obtain a high-quality concentrate. It was estimated that with the addition of Na2CO3 in the amount of 2,000 g/t, a concentrate was obtained with the grade and recovery of phosphorus pentoxide equal to 39.15 and 94.19 %, respectively. The paper proposes to increase the efficiency of flotation processing of sedimentary phosphate ore with a low grade of the valuable component (P2O5 = 22.5 %), containing gypsum and quartz, by means of desliming followed by anionic or cationic reverse flotation. Tall oil fatty acid with anionic phospholane was used as a collector in anionic reverse flotation, and amine was used in cationic reverse flotation. Sodium tripolyphosphate was used as a P2O5 depressant. It was found to be an effective depressant in both anionic and cationic flotation. When analyzing the statistical plan, it was estimated that the maximum grade of the valuable component in the concentrate (P2O5 = 31.23 %) and the recovery to concentrate of 95.22 % were obtained in the chamber product at amine consumption of 950.88 g/t and sodium tripolyphosphate consumption of 500 g/t.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>флотация фосфорсодержащих руд</kwd>
        <kwd>флотационные реагенты</kwd>
        <kwd>триполифосфат натрия</kwd>
        <kwd>синергетический эффект</kwd>
        <kwd>неионогенные поверхностно-активные вещества</kwd>
        <kwd>флотация нефелиновой руды</kwd>
        <kwd>статистический план</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>flotation of phosphorous-bearing ores</kwd>
        <kwd>flotation reagents</kwd>
        <kwd>sodium tripolyphosphate</kwd>
        <kwd>synergistic effect</kwd>
        <kwd>non-ionic surfactants</kwd>
        <kwd>flotation of nepheline ore</kwd>
        <kwd>statistical plan</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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