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公开(公告)号：US4256707A
公开(公告)日：1981-03-17
申请号：US87852
申请日：1979-10-24
摘要： A rapid, energy efficient, low cost, nonhazardous method for the selective removal of mercury from mercury-containing metal cyanide solutions, particularly the cyanide solutions resulting from the cyanidation of gold ore and the like, wherein a reactive sulfide is admixed with the solution for a time sufficient to form an insoluble mercuric sulfide precipitate. The mercuric sulfide precipitate is then separated from the metal cyanide solution by filtration or other conventional means.
摘要翻译： 一种用于从含汞金属氰化物溶液中选择性去除汞的快速，节能，低成本，非危险的方法，特别是由金矿石等氰化产生的氰化物溶液，其中反应性硫化物与溶液混合， 足以形成不溶性硫化汞沉淀物的时间。 然后通过过滤或其它常规方法从金属氰化物溶液中分离出硫化汞沉淀物。
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公开(公告)号：US4285912A
公开(公告)日：1981-08-25
申请号：US186090
申请日：1980-09-11
CPC分类号： C01G51/006 , C01G29/00 , C01G37/006
摘要： A method for the separation of bismuth from a complex chloride solution obtained by leaching with chloride reagents ores containing bismuth and high concentrations of other metals comprising adding to said complex chloride solution at least a stoichiometric amount of a precipitating agent selected from the group consisting of hexamminecobalt (III) salts and hexamminechromium (III) salts soluble in said solution to precipitate said bismuth as a hexamminecobalt (III) bismuth salt or a hexamminechromium (III) bismuth salt and separating said precipitate from said solution.
摘要翻译： 一种用于从含有铋和高浓度其它金属的氯化物试剂矿石浸出得到的复合氯化物溶液中分离铋的方法，包括向所述复合氯化物溶液中加入至少一种化学计量的沉淀剂，所述沉淀剂选自六氰基钴 （III）盐和可溶于所述溶液中的六氨基铬（III）盐，以将所述铋作为六价钴（III）铋盐或六锑铬（III）铋盐沉淀，并将所述沉淀物与所述溶液分离。
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公开(公告)号：US4888207A
公开(公告)日：1989-12-19
申请号：US589799
申请日：1984-03-15
CPC分类号： C01G28/005 , C22B30/04 , C01P2006/80
摘要： Arsenic, in the form of As.sub.2 O.sub.3, is recovered from arsenical ores or concentrates by leaching with a hot acidic ferric salt solution to extract arsenic, followed by cooling the pregnant leach solution to crystallize As.sub.2 O.sub.3. Leaching of some ores or concentrates is facilitated by addition of silver sulfate or mercuric sulfate to catalyze the leaching reaction.
摘要翻译： 以As2O3的形式，通过用酸性磷酸铁溶液浸出砷矿石或浓缩物砷来提取砷，然后冷却该浸出溶液使As2O3结晶。 通过加入硫酸银或硫酸汞将催化浸出反应促进了一些矿石或浓缩物的浸出。
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公开(公告)号：US4256587A
公开(公告)日：1981-03-17
申请号：US097756
申请日：1979-11-27
摘要： A low cost, effective method for removing heavy metal ions from aqueous solution which utilizes a porous, high surface-to-weight ratio siliceous adsorbent comprises the steps of activating the siliceous adsorbent, which is preferably a kaolin clay leach residue, with a basic salt of an alkali metal to incorporate alkali ions into the siliceous adsorbent and contacting the heavy metal ion-containing solution with the activated adsorbent whereby the heavy metal ions exchange with the alkali ions to remove the heavy metal ions from solution. The heavy metal ion loaded adsorbent may be stripped for subsequent reuse or, alternatively, utilized for flux in base metal smelting and the like.
摘要翻译： 使用多孔，高表面重量比的硅质吸附剂从水溶液中除去重金属离子的低成本，有效的方法包括以下步骤：将具有碱性盐的硅质吸附剂（优选为高岭土浸出残渣）活化 的碱金属将碱离子掺入硅质吸附剂中并使含重金属离子的溶液与活化吸附剂接触，由此重金属离子与碱离子交换以从溶液中除去重金属离子。 可以将重金属离子负载的吸附剂剥离以用于随后的再利用，或者替代地，用于贱金属冶炼等中的助熔剂。
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