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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">gscience</journal-id><journal-title-group><journal-title xml:lang="en">Mining Science and Technology (Russia)</journal-title><trans-title-group xml:lang="ru"><trans-title>Горные науки и технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-0632</issn><publisher><publisher-name>The National University of Science and Technology MISiIS (NUST MISIS)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/2500-0632-2018-3-45-53</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-121</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="en"><subject>BENEFICIATION AND PROCESSING OF NATURAL AND TECHNOGENIC RAW MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОБОГАЩЕНИЕ, ПЕРЕРАБОТКА МИНЕРАЛЬНОГО И ТЕХНОГЕННОГО СЫРЬЯ</subject></subj-group></article-categories><title-group><article-title>New dialkyldithiophosphate collector for silver-containing ore flotation</article-title><trans-title-group xml:lang="ru"><trans-title>Новый диалкилдитиофосфатный собиратель для флотации серебросодержащих руд</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>Рябой</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryaboy</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</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>Левковец</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Levkovets</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тольятти</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефремова</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Efremova</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Магадан</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коваль</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Koval</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Магадан</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Механобр-ОР»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC "Mekhanobr-OR"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Квадрат плюс»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC "Kvadrat Plus"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ЗАО «Серебро Магадана»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>CJSC "Silver Magadan"</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2018</year></pub-date><volume>0</volume><issue>3</issue><fpage>45</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ryaboy V.I., Levkovets S.E., Efremova G.A., Koval O.E., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Рябой В.И., Левковец С.Е., Ефремова Г.А., Коваль О.Е.</copyright-holder><copyright-holder xml:lang="en">Ryaboy V.I., Levkovets S.E., Efremova G.A., Koval O.E.</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://mst.misis.ru/jour/article/view/121">https://mst.misis.ru/jour/article/view/121</self-uri><abstract><p>To create more effective dialkyldithiophosphate collector for use in combination with potassium butyl xanthate in silver ore flotation (for Ducat deposit ores), the effect of a number of dialkyldithiophosphate collectors was studied depending on their surface-active properties and water-repelling ability. It was shown that their collecting ability, at rather similar water-repelling ability increases with strengthening their surface-active properties and reaches maximum at surface tension of 42–45.3 mN/m, and then begins to decrease. The water repellent ability decrease, even at their high surface-active properties, for example, for hydrolyzed samples, significantly reduces silver recovery. Taking into account the studied effect of surface activity and water repellent ability of the reagents, a more efficient dialkyldithiophosphate collector has been developed, which increases silver recovery compared to the standard reagent by 1.8–3.4% depending on ore dressability. Optimal ratio of the proposed dialkyldithiophosphate collector and xanthate dosing also contributes to increasing silver recovery with no reducing the process selectivity.</p></abstract><trans-abstract xml:lang="ru"><p>С целью создания более эффективного диалкилдитиофосфатного собирателя, применяемого в комбинации с бутилксантогенатом калия при флотации серебряных руд (м.р. Дукат), изучено действие ряда диалкилдитиофосфатных собирателей в зависимости от их поверхностно-активных свойств и гидрофобизирующей способности. Показано, что их собирательная сила при близкой гидрофобизирующей способности возрастает по мере увеличения их поверхностно-активных свойств и достигает максимума при величине поверхностного натяжения 42–45,3 мН/м, а затем начинает снижаться. Уменьшение гидрофобизирующей способности даже при их высоких поверхностно-активных свойствах, например для гидролизованных образцов, заметно снижает извлечение серебра. С учетом изученного влияния поверхностной активности и гидрофобизирующей способности реагентов разработан более эффективный диалкилдитиофосфатный собиратель, увеличивающий извлечение серебра по сравнению со стандартным реагентом на 1,8–3,4 % в зависимости от обогатимости руды. Повышению извлечения серебра без снижения селективности процесса способствует также оптимальное соотношение расходов предложенного диалкилдитиофосфатного собирателя и ксантогената.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поверхностно-активные свойства</kwd><kwd>сталагмометрический метод</kwd><kwd>гидрофобизирующая способность</kwd><kwd>эффективность обогащения</kwd><kwd>извлечение</kwd><kwd>серебро</kwd><kwd>диалкилдитиофосфаты</kwd><kwd>ксантогенат</kwd><kwd>серебряные руды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>surface-active properties</kwd><kwd>stalagmometric method</kwd><kwd>water-repelling ability</kwd><kwd>beneficiation efficiency</kwd><kwd>extraction</kwd><kwd>silver</kwd><kwd>dialkyldithiophosphates</kwd><kwd>xanthate</kwd><kwd>silver ores</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">Кондратьев С.А. 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