CN106978534A CN201710180399.XA CN201710180399A CN106978534A CN 106978534 A CN106978534 A CN 106978534A CN 201710180399 A CN201710180399 A CN 201710180399A CN 106978534 A CN106978534 A CN 106978534A Authority CN China Prior art keywords molybdenum sulfuric acid extraction extractant filtrate Prior art date 2017-03-22 Legal status …
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FIELD: metallurgy. SUBSTANCE: method involves reduction of oxide compound powder of valve metal with pairs of magnesium or calcium by heating in inert atmosphere, heat treatment of reduction products is carried out at temperature of 1000-1500°C for 0.5-2 hours, acid leaching of magnesium or calcium oxide from reduction products.
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The iron ore wash plant also removes clays from the feed material and the combined effect means the Fe content increases from between 43.4% and 52.7% in the feed to above 60% iron ore product, with a yield of up to 50%.
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Изобретение относится к области извлечения ценных веществ - ванадия, урана, молибдена и редкоземельных металлов из черносланцевых руд. Способ включает измельчение руды, противоточное двухстадиальное выщелачивание ...
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FIELD: non-ferrous metallurgy; elimination of waste in the course of processing tungsten-tin concentrates, production of calcium tungstate and tin compounds. SUBSTANCE: proposed method includes reducing roasting of initial concentrate and hydrochloric acid leaching of cinder thus obtained. After hydrochloric leaching, tin hydroxide is settled from solution for obtaining …
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FIELD: metallurgy; reworking of vanadium-containing materials; extraction of vanadium from vanadium-containing metallurgical slags. SUBSTANCE: proposed method includes roasting of starting vanadium- containing material in atmosphere of oxygen of air without reactive additives at temperature of 825-875 C continued for 1-2 h and followed by leaching-out of cinder in …
Jan 22, 2021 · Поле DC Значение Язык; dc.contributor.author: Назаренко, О. В. uk: dc.contributor.author: Іванченко, А. В. uk: dc.contributor ...
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CN106501446A CN201611002773.9A CN201611002773A CN106501446A CN 106501446 A CN106501446 A CN 106501446A CN 201611002773 A CN201611002773 A CN 201611002773A CN 106501446 A CN106501446 A CN 106501446A Authority CN China Prior art keywords waste acid hydrogen peroxide concentrating waste iron concentrating Prior art date 2016-11-15 …
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Police Auctions Canada - Oster BLSTFE12W-W33 12-Speed ... Oster BLSTFE12W-W33 12-Speed BlenderSKU#241684H Push your culinary creativity in the kitchen with the Oster 12-Speed Blender.
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FIELD: metallurgy. ^ SUBSTANCE: invention refers to procedure for leaching precious metal from ore containing said precious metal. The procedure consists of three stages: leaching ore at presence of hydrochloric acid with production of soluble chloride of metal in a solution for leaching, in adding sulphur dioxide into the solution for leaching, in extracting metal sulphate …
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Иран-это очень важный рынок Ближнего Востока. Каждый год…
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