公开(公告)号：US3970737A

公开(公告)日：1976-07-20

申请号：US518833

申请日：1974-10-29

Applicant: Raymond John Davidson

Inventor： Raymond John Davidson

IPC: C22B11/08 ,  B01D15/00 ,  C01G5/00 ,  C01G7/00 ,  C01G55/00 ,  C22B3/24 ,  C22B15/00 ,  C22B23/00 ,  C01G3/00 ,  C01G53/00

CPC classification number: C01G55/001 ,  B01D15/00 ,  C01G5/003 ,  C01G7/003 ,  C22B3/24 ,  Y02P10/234

Abstract: The invention provides a method of recovering transition or noble metal values, particularly gold and silver values, from a support having absorbed thereon the metal values in the form of an ionic complex, particularly a cyanide ionic complex, by desorbing the metal values with water of low cation concentration such as deionized or softened water. When the cation of the complex is an alkaline earth metal cation then the support is preferably subjected to a pre-treatment with an alkali metal salt solution to effect an exchange reaction before the desorption step.

Abstract translation: 本发明提供了一种从其上吸收了离子络合物，特别是氰化物离子络合物形式的金属值的载体中回收过渡金属或贵金属值，特别是金和银值的方法，通过用水 低阳离子浓度，如去离子水或软化水。 当络合物的阳离子是碱土金属阳离子时，优选用碱金属盐溶液对载体进行预处理，以在解吸步骤之前进行交换反应。