FIELD: pyrometallurgy. SUBSTANCE: method includes oxidative firing to produce calcine, preparation of charge, and melting it to yield iron-sodium slag and gold-containing alloy. According to invention, oxidative firing is carried out at 600-750 C for 10-15 h, and subjected to melting is slurry containing 35-43% calcine, 35-43% saltpeter, and 20-30% borax. EFFECT: increased concentration of precious metals in concentrated product. 3 tbl
| Title | Year | Author | Number | 
|---|---|---|---|
| METHOD OF REMOVING PLATINUM METALS FROM MATERIAL CONTAINING THESE METALS | 1997 | 
 | RU2120485C1 | 
| METHOD OF RECOVERING SILVER FROM MATERIALS CONTAINING SILVER CHLORIDE, GOLD AND PLATINUM GROUP METAL ADMIXTURES | 1996 | 
 | RU2096506C1 | 
| METHOD FOR PROCESSING OF AURUM-CONTAINING HALF-FINISHED PRODUCTS | 1996 | 
 | RU2095446C1 | 
| METHOD OF RECOVERING PRECIOUS METALS FROM GRAVITATION CONCENTRATES | 2003 | 
 | RU2240367C1 | 
| METHOD OF NOBLE METALS EXTRACTION FROM GRAVITATIONAL CONCENTRATES | 1989 | 
 | SU1649815A1 | 
| METHOD OF PROCESSING GRAVITY SEPARATION CONCENTRATES CONTAINING PRECIOUS METALS | 1999 | 
 | RU2156820C1 | 
| METHOD FOR PROCESSING SULFIDE CONCENTRATES CONTAINING PRECIOUS METALS | 2017 | 
 | RU2687613C2 | 
| PROCEDURE FOR PROCESSING CONCENTRATES CONTAINING NOBLE METALS AND SULPHIDES | 2008 | 
 | RU2395598C1 | 
| METHOD FOR PROCESSING SULFIDE CONCENTRATES CONTAINING NOBLE METALS | 2017 | 
 | RU2654407C1 | 
| METHOD OF RECOVERING PRECIOUS METALS FROM INTERMEDIATE PRODUCTS | 1997 | 
 | RU2110594C1 | 
Authors
Dates
1997-12-20—Published
1996-08-23—Filed