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1.发明公开RECOVERY OF GOLD AND/OR SILVER FROM SCRAP 审中-公开RÜCKGEWINNUNGVON GOLD UND / ODER SILBER AUS ALTMETALL
公开(公告)号：EP3148939A1
公开(公告)日：2017-04-05
申请号：EP15754631.8
申请日：2015-02-26
CPC分类号： C22B11/042 , C01G5/00 , C01G5/02 , C01G7/00 , C01G41/02 , C22B3/02 , C22B3/045 , C22B7/007 , C22B11/046 , C25C1/20 , C25C7/005 , Y02P10/214 , Y02P10/234
摘要： Gold and silver are recovered selectively such that gold and silver are separated from non-silver and non-gold material within the scrap. Gold and silver are recovered from scrap material using mixtures of acids, in some instances. The mixture comprises nitric acid and at least one supplemental acid, such as sulfuric acid or phosphoric acid. The amount of nitric acid within the mixture are relatively small compared to the amount of sulfuric acid or phosphoric acid within the mixture. The recovery of gold and silver using the acid mixtures are enhanced by transporting an electric current between an electrode and the gold and silver of the scrap material. Acid mixtures are used to recover silver from particular types of scrap materials, such as scrap material comprising silver metal and cadmium oxide and scrap material comprising silver metal and tungsten metal.
摘要翻译： 金和银被选择性地回收，使得金和银与废金中的非银和非金材料分离。 在某些情况下，使用酸的混合物从废料中回收金和银。 该混合物包含硝酸和至少一种补充酸，例如硫酸或磷酸。 与混合物中的硫酸或磷酸的量相比，混合物内的硝酸的量相对较小。 通过在电极和废料的金和银之间传输电流来增强使用酸混合物的金和银的回收。 酸混合物用于从特定类型的废料回收银，例如包含银金属和氧化镉的废料以及包含银金属和钨金属的废料。
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2.发明公开METHOD AND APPARATUS FOR RECOVERY OF NOBLE METALS, INCLUDING RECOVERY OF NOBLE METALS FROM PLATED AND/OR FILLED SCRAP 审中-公开方法和装置用于回收贵金属，包括贵金属FROM AUFPLATTIERTEM和/或填充废料的回收
公开(公告)号：EP3083016A2
公开(公告)日：2016-10-26
申请号：EP14871936.2
申请日：2014-12-19
IPC分类号： B01D61/00
摘要： Systems and methods for the recovery of noble metal from noble-metal-containing material are generally described. Certain embodiments related to systems and methods in which an electric current is transported between an electrode and the noble metal of a noble-metal-containing material to dissolve at least a portion of the noble metal from the noble-metal-containing material. The dissolved noble metal can subsequently be precipitated out of solution and recovered, according to certain embodiments. Noble metals can be recovered from any suitable noble-metal-containing material, including plated and/or filled scrap materials and/or other materials.
摘要翻译： 为贵金属从含有贵金属的材料中回收的系统和方法是基因反弹说明。 相关的系统和在其中电流之间的电极和含贵金属材料的贵金属运方法的某些实施，以溶解至少一从贵金属含有金属的材料中的贵金属的一部分。 溶解的贵金属可以随后从溶液中沉淀和回收，gemäß某些实施例。 贵金属可以从任何合适的含贵金属的材料被回收，包括镀和/或填充的废料和/或其它材料。
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公开(公告)号：EP3083016B1
公开(公告)日：2020-07-29
申请号：EP14871936.2
申请日：2014-12-19
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4.发明公开
公开(公告)号：EP3353332A1
公开(公告)日：2018-08-01
申请号：EP16815255.1
申请日：2016-06-23
CPC分类号： C25C1/20 , C01G5/00 , C01G7/00 , C22B3/065 , C22B3/08 , C22B11/04 , C25C7/00 , C25C7/02 , Y02P10/234
摘要： The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal material within the material. Noble metal(s) may be recovered from noble-metal-containing material using mixtures of acids, in some instances. In some cases, the mixture can comprise nitric acid and/or another source of nitrate ions and at least one supplemental acid, such as sulfuric acid, phosphoric acid, and/or a sulfonic acid. The amount of nitrate ions within the mixture can be, in some instances, relatively small compared to the amount of supplemental acid within the mixture. In some cases, the recovery of noble metal(s) using the acid mixtures described herein can be enhanced by transporting an electric current between an electrode and the noble metal(s) of the noble-metal-containing material. In some cases, acid mixtures can be used to recover silver from particular types of scrap materials, such as scrap material comprising silver metal and cadmium oxide and/or scrap material comprising silver metal and tungsten metal.
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