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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-12725</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12725</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Физическая химия, обогащение и металлургия</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Physical chemistry, benefication and metallurgy</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Extraction of some nonferrous metal ions by naphthenic acids</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Об экстракции ионов некоторых цветных металлов нафтеновыми кислотами</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Shikheeva</surname>
            <given-names>L. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Шихеева</surname>
              <given-names>Л. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Shikheeva</surname>
              <given-names>L. V.</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"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1963-11-16">
        <day>16</day>
        <month>11</month>
        <year>1963</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1963</year>
      </pub-date>
      <volume>42</volume>
      <issue>3</issue>
      <fpage>71</fpage>
      <lpage>71</lpage>
      <history>
        <date date-type="received" iso-8601-date="1962-09-08">
          <day>08</day>
          <month>09</month>
          <year>1962</year>
        </date>
        <date date-type="accepted" iso-8601-date="1962-11-16">
          <day>16</day>
          <month>11</month>
          <year>1962</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1963-11-16">
          <day>16</day>
          <month>11</month>
          <year>1963</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1963 Л. В. Шихеева</copyright-statement>
        <copyright-statement xml:lang="en">© 1963 L. V. Shikheeva</copyright-statement>
        <copyright-year>1963</copyright-year>
        <copyright-holder xml:lang="ru">Л. В. Шихеева</copyright-holder>
        <copyright-holder xml:lang="en">L. V. Shikheeva</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/12725">https://pmi.spmi.ru/pmi/article/view/12725</self-uri>
      <abstract xml:lang="ru">
        <p>Нафтеновые кислоты являются составной частью нефтей, преиму­щественно нафтеновых. Последние содержат алициклические углево­дороды с пяти- и шестичленными циклами. Состав и строение нафтено­вых кислот меняются при переходе от одной фракции нефти к другой. Нафтеновые кислоты, полученные при щелочной обработке газойлевых и керосиновых дистиллятов, содержат главным образом производные циклопентана.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Naphthenic acids are a component of oils, mainly naphthenic ones. The latter contain alicyclic hydrocarbons with five- and six-membered cycles. The composition and structure of naphthenic acids change from one oil fraction to another. Naphthenic acids obtained by alkaline treatment of gasoil and kerosene distillates contain mainly cyclopentane derivatives.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
