Reclaim the method for precious metal and the recovery system for precious metal

Reclaim the method for precious metal and the recovery system for precious metal

  • CN 101,855,373 B
  • Filed: 01/20/2009
  • Issued: 08/12/2015
  • Est. Priority Date: 01/21/2008
  • Status: Active Grant
First Claim
Patent Images

1. a recovery method, it comprises:

  • The solids component containing Ru is made to contact to form Ru compound with the aqueous solution, this aqueous solution is by being selected from by water solution A, aqueous solution B, aqueous solution C, at least one in the group that aqueous solution D and aqueous solution E forms is formed, water solution A comprises acid and formic acid, alcohols, aldehydes, there is the compound of hemiacetal structure or there is the compound of acetal structure, aqueous solution B comprises acid and a kind of compound, this compound to coexist lower generation formic acid with acid, alcohols, aldehydes, there is the compound of hemiacetal structure or there is the compound of acetal structure, aqueous solution C comprises acid and carbohydrate, aqueous solution D comprises formic acid, and aqueous solution E comprises oxalic acid, wherein said acid is selected from sulfuric acid, hydrochloric acid, nitric acid, carboxylic acid, andBy this Ru compound selective ground elution in this aqueous solution;

    After the ground elution of Ru compound selective is in the aqueous solution, make solids component and oxidising agent;

    The solids component crossed with oxidising agent is made to contact to form Ru compound with the aqueous solution, this aqueous solution is by being selected from water solution A, aqueous solution B, aqueous solution C, at least one in the group that aqueous solution D and aqueous solution E forms is formed, water solution A comprises acid and formic acid, alcohols, aldehydes, there is the compound of hemiacetal structure or there is the compound of acetal structure, aqueous solution B comprises acid and a kind of compound, this compound to coexist lower generation formic acid with acid, alcohols, aldehydes, there is the compound of hemiacetal structure or there is the compound of acetal structure, aqueous solution C comprises acid and carbohydrate, aqueous solution D comprises formic acid, and aqueous solution E comprises oxalic acid, wherein said acid is selected from sulfuric acid, hydrochloric acid, nitric acid, carboxylic acid, andBy this Ru compound selective ground elution in this aqueous solution.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×