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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2015-6-10-14</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-270</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 цветных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy of Non-Ferrous Metals</subject></subj-group></article-categories><title-group><article-title>ТЕРМОДИНАМИЧЕСКИЕ ФУНКЦИИ ОБРАЗОВАНИЯ ТВЕРДОЙ ФАЗЫ В СИСТЕМЕ Fe(II)/Ni(II) – ДИБУТИЛДИТИОФОСФАТ АММОНИЯ – ДИИЗООКТИЛДИТИОФОСФАТ АММОНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>Thermodynamic functions for the formation of the solid phase in the Fe(II)/Ni(II)–ammonium dibutyldithiophosphate–ammonium diisooctyldithiophosphate system</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>Амерханова</surname><given-names>Ш. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Amerkhanova</surname><given-names>Sh. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. хим. наук, профессор кафедры физической и аналитической химии КарГУ (100028, Респ. Казахстан, г. Караганда, ул. Университетская, 28). Тел.: +7 (7212) 41-62-18</p></bio><bio xml:lang="en"><p>Dr. Sci.(Chem.), Prof., Department of Physical and Analytical Chemistry, Karaganda State University (KSU) (100028, Republic of Kazakhstan, Karaganda, Universitetskaya str., 28). Tel .: +7 (7212) 41-62-18.</p></bio><email xlink:type="simple">amerkhanova_sh@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>Шляпов</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shlyapov</surname><given-names>R. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, доцент кафедры химической технологии и экологии КарГУ</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), Associate Prof., Department of Chemical Engineering and Petroleum Chemistry, KSU</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уали</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Uali</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, доцент той же кафедры</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), Associate Prof., Department of Chemical Engineering and Petroleum Chemistry, KSU.</p></bio><email xlink:type="simple">ualieva.84@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Карагандинский государственный университет (КарГУ) им. акад. Е.А. Букетова, Республика Казахстан</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>17</day><month>12</month><year>2015</year></pub-date><volume>0</volume><issue>6</issue><fpage>10</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Амерханова Ш.К., Шляпов Р.М., Уали А.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Амерханова Ш.К., Шляпов Р.М., Уали А.С.</copyright-holder><copyright-holder xml:lang="en">Amerkhanova S.K., Shlyapov R.M., Uali A.S.</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://cvmet.misis.ru/jour/article/view/270">https://cvmet.misis.ru/jour/article/view/270</self-uri><abstract><p>Потенциометрическим методом изучены процессы формирования осадков дибутилдитиофосфата–диизооктилдитио-фосфата никеля (II) и железа (II). Проведены расчеты произведений растворимости для Ni- и Fe-содержащих осадков дибутилдитиофосфата и диизооктилдитиофосфата аммония. Показано, что увеличение температуры по-разному влияет на процесс осаждения: для комплексов ионов Fe(II) во всем интервале ионных сил (I = 0÷0,75) растворимость уменьшается, тогда как для ионов Ni(II) она снижается только при низких значениях этого показателя (I = 0÷0,25), а при высоких – осадок растворяется. На основании данных по произведению растворимости рассчитаны термодинамические характеристики процесса образования осадков дибутилдитифофосфата–диизооктилдитиофосфата железа (II) и никеля (II) – изменение энергии Гиббса, энтальпия и энтропия. Показано, что на указанный процесс определяющее влияние оказывает сольватация компонентов, причем в случае ионов железа (II) оно наибольшее в интервале I = 0,50÷0,75, а для ионов никеля (II) – при I = 0÷0,25.</p></abstract><trans-abstract xml:lang="en"><p>The formation of precipitates of dibutyldithiophosphate–diisooctyldithiophosphate of nickel(II) and iron(II) are investigated by the potentiometric method. Solubility products for Ni-containing and Fe-containing precipitates of ammonium dibutyldithiophosphate and diisooctyldithiophosphate are calculated. It is shown that an increase in temperature differently affects the deposition process, notably, solubility for complexes of Fe(II) ions decreases overall the ionic strength range (I = 0÷0,75), while it decreases for Ni(II) ions only at low values of this characteristic (I = 0÷0,25), and the precipitate dissolves at a high ionic strength. Thermodynamic characteristics of the precipitate formation of dibutyldithiophosphate–diisoocryldithiophosphate of iron(II) and nickel(II), notably, the variation in the Gibbs energy, enthalpy, and entropy are calculated based on the data on the solubility product. It is shown that the solvation of components exerts the determining effect on the mentioned process, and it is largest in range I = 0,50÷0,75 in the case of iron(II) ions and at I = 0÷÷0,25 in the case of nickel (II) ions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фосфорсодержащие собиратели</kwd><kwd>произведение растворимости</kwd><kwd>изменение энергии Гиббса</kwd><kwd>энтальпия</kwd><kwd>энтропия</kwd><kwd>сольватация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phosphorus-containing collectors</kwd><kwd>solubility product</kwd><kwd>variation in the Gibbs energy</kwd><kwd>enthalpy</kwd><kwd>entropy</kwd><kwd>solvation</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">Ananthapadmanabhan K.P., Somasundaran P. Surface precipitation of inorganics and surfactants and its role in adsorption and flotation // Coll. and Surf. 1985. Vol. 13. 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