公开(公告)号：US4606797A

公开(公告)日：1986-08-19

申请号：US775070

申请日：1985-09-12

申请人： Arthur D. Taylor ,  Roger W. Ramsey

发明人： Arthur D. Taylor ,  Roger W. Ramsey

IPC分类号： C25F5/00

CPC分类号： C25F5/00 ,  C25C1/20 ,  C25C5/02

摘要： A method for recovering high grade gold alloy in an unoxidized condition from karat gold clad to a base metal substrate without significant oxidation of the substrate, wherein the substrate is employed as an anode in an aqueous solution of from about 0.02 to about 2% by weight nitric acid and is subjected to electrolysis at a temperature of from about 48.degree. C. to about 94.degree. C. for sufficient time to delaminate karat gold from the substrate in particulate form and deposit same in the solution, from which the delaminated karat gold may be separated. Also disclosed is an apparatus suitable for carrying out such process, comprising an electrolysis tank wherein the karat gold-clad base metal substrate is mounted in spaced relationship to a cathode, with filtration means disposed in the tank for collection of delaminated karat gold formed during the electrolysis, and means for draining or otherwise withdrawing electrolyte solution from the tank after termination of the electrolysis conditions, whereby the delaminated karat gold may be recovered from the electrolyte solution.

摘要翻译： 一种在未氧化条件下从无金属包覆到基底金属基底的高品位金合金的回收方法，而不会明显地氧化基底，其中将基底用作约0.02至约2％（重量）的水溶液中的阳极 硝酸，并在约48℃至约94℃的温度下进行电解足够的时间以从颗粒形式的基质中分层岩溶金，并将其沉积在溶液中，其中分层的卡拉金可以从其中 被分开 还公开了一种适用于进行这种处理的装置，其中包括一个电解槽，其中该金刚石覆盖的基底金属基底与阴极间隔开地安装，其中设置在该储罐中的过滤装置用于收集在该过程中形成的分层的卡拉金 电解，以及在电解条件终止之后排出或以其他方式从电解槽中取出电解质溶液的装置，从而可以从电解液中回收分层的卡拉金。