초록 ▼

A method for reducing the amount of anionic metal-ligand complex in a solution comprises: (a) contacting the solution with a substance selected from: a compound having the formula: AwBx(OH)yCzㆍnH2O, wherein A represents a divalent metal cation, B represents a trivalent metal cation, C represents a m

A method for reducing the amount of anionic metal-ligand complex in a solution comprises: (a) contacting the solution with a substance selected from: a compound having the formula: AwBx(OH)yCzㆍnH2O, wherein A represents a divalent metal cation, B represents a trivalent metal cation, C represents a mono- to tetravalent anion, and w, x, y, z and n satisfy the following: 0≤z≤x≤4≤w≤½y and 12≥n≥3/2x; a calcined product of said compound and mixtures thereof; and (b) separating the substance from the solution. A method for removing substantially all metal-cyanide, -thiocyanate, -thiosulfate, -citrate and/or -EDTA complex from a solution containing one or more of said complexes is also disclosed. The latter method comprises contacting the solution with a sufficient amount of substance consisting essentially of a compound selected from: hydrotalcite, calcined hydrotalcite and mixtures thereof.

대표청구항 ▼

A method for reducing the amount of anionic metal-ligand complex in a solution, the ligand of said complex being selected from: cyanide, thiocyanate, thiosulfate, citrate and ethylenediamine tetraacetic acid (EDTA), said method comprising: (a) contacting the solution with a substance selected from:

A method for reducing the amount of anionic metal-ligand complex in a solution, the ligand of said complex being selected from: cyanide, thiocyanate, thiosulfate, citrate and ethylenediamine tetraacetic acid (EDTA), said method comprising: (a) contacting the solution with a substance selected from: a compound having the formula AwBx(OH)yCz.nH2O, wherein A represents a divalent metal cation, B represents a trivalent metal cation, C represents a mono- to tetravalent anion, and w, x, y, z and n satisfy the following: 0≤z≤x≤4≤w≤½y and 12≥n≥3/2x; a calcined product of said compound and mixtures thereof; and (b) separating the substance from the solution.