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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 custom-type="pmi" pub-id-type="custom">pmi-12094</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12094</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Методические работы. Краткие сообщения</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Methodical works. Brief reports</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">On the composition and solubility of naphthenates</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>О составе и растворимости нафтенатов</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Kopylenko</surname>
            <given-names>M. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Копыленко</surname>
              <given-names>М. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kopylenko</surname>
              <given-names>M. I.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1970-07-10">
        <day>10</day>
        <month>07</month>
        <year>1970</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1970</year>
      </pub-date>
      <volume>50</volume>
      <issue>3</issue>
      <fpage>171</fpage>
      <lpage>172</lpage>
      <history>
        <date date-type="received" iso-8601-date="1969-12-17">
          <day>17</day>
          <month>12</month>
          <year>1969</year>
        </date>
        <date date-type="accepted" iso-8601-date="1970-02-13">
          <day>13</day>
          <month>02</month>
          <year>1970</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1970-07-10">
          <day>10</day>
          <month>07</month>
          <year>1970</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1970 М. И. Копыленко</copyright-statement>
        <copyright-statement xml:lang="en">© 1970 M. I. Kopylenko</copyright-statement>
        <copyright-year>1970</copyright-year>
        <copyright-holder xml:lang="ru">М. И. Копыленко</copyright-holder>
        <copyright-holder xml:lang="en">M. I. Kopylenko</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/12094">https://pmi.spmi.ru/pmi/article/view/12094</self-uri>
      <abstract xml:lang="ru">
        <p>При экстракции цветных металлов из разбавленных рас­творов нафтеновыми кислотами образуются соли, растворимые в органической фазе и малорастворимые в воде. Рас­творимость нафтенатов в органической фазе определяется как природой растворителя, так и составом экстрагируемого со­единения, как правило, содержащего некоторое количество гидратной воды ...</p>
      </abstract>
      <abstract xml:lang="en">
        <p>During extraction of non-ferrous metals from dilute solutions with naphthenic acids, salts are formed that are soluble in the organic phase and poorly soluble in water. The solubility of naphthenates in the organic phase is determined both by the nature of the solvent and by the composition of the extracted compound, which usually contains a certain amount of hydrated water ...</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
