公开(公告)号：US4684404A

公开(公告)日：1987-08-04

申请号：US784463

申请日：1985-10-04

Applicant: Guy I. Z. Kalocsai

Inventor： Guy I. Z. Kalocsai

IPC: C22B11/00 ,  C01G7/00 ,  C22B20060101 ,  C22B3/00 ,  C22B7/00 ,  C23F1/10 ,  C23F1/30 ,  G01N33/20 ,  C22B11/04

CPC classification number: C22B11/04

Abstract: The invention provides a reagent suitable for the dissolution of metallic gold and various methods for the application of the reagent including gold analysis, gold extraction, gold separation and the in-situ treatment of gold deposits.The reagent uses a protic solvent containing a preferably non-reducing cation source and a source of bromine optionally in combination with a strong oxidizing agent. The protic solvent is water or a lower alkyl alcohol or a mixture thereof. The cation source preferably highly dissociates in the protic solvent and suitable cation sources include dibasic ammonium phosphate, ammonium sulphate, potassium chromate, hydrochloric acid, sodium hydroxide and potassium hydroxide. Cation sources which liberate ammonium cations are preferred.The strong oxidizing agent should by highly dissociated in the solvent and is preferably selected from the group consisting of hydrogen peroxide, sodium peroxide, potassium peroxide, sodium permanganate, potassium permanganate, potassium dichromate and ferric sulphate.

Abstract translation: 本发明提供了一种适用于金属溶解的试剂和用于应用试剂的各种方法，包括金分析，金提取，金分离和金沉积物的原位处理。 试剂使用含有优选非还原性阳离子源和溴源的质子溶剂，任选与强氧化剂组合。 质子溶剂是水或低级烷基醇或其混合物。 阳离子源优选在质子溶剂中高度解离，合适的阳离子源包括磷酸氢二铵，硫酸铵，铬酸钾，盐酸，氢氧化钠和氢氧化钾。 释放铵阳离子的阳离子源是优选的。 强氧化剂应在溶剂中高度离解，优选选自过氧化氢，过氧化钠，过氧化钾，高锰酸钠，高锰酸钾，重铬酸钾和硫酸铁。