IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0413627
(1989-09-28)
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발명자
/ 주소 |
- O\Neill Gary A. (Plum Borough PA) Misra Chanakya (Plum Borough PA) Chen Abraham S. C. (Franklin Park Township PA)
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출원인 / 주소 |
- Aluminum Company of America (Pittsburgh PA 02)
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인용정보 |
피인용 횟수 :
11 인용 특허 :
0 |
초록
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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)yCz.nH2O, 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)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≥½(w-x); 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; and separating the substance from the solution.
대표청구항
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A method for reducing the amount of an anionic metal-ligand complex in a solution, the ligand of said complex comprising a molecule, ion or atom capable of independent existence as a stable, chemical species and which ligand attaches to the central atom of a coordination compound, chelate or other c
A method for reducing the amount of an anionic metal-ligand complex in a solution, the ligand of said complex comprising a molecule, ion or atom capable of independent existence as a stable, chemical species and which ligand attaches to the central atom of a coordination compound, chelate or other complex, and the metal of said complex being selected from: Ag, Au, Ba, Ca, Cd, Cu, Fe, Mg, Mn, Ni, Pb, Pd, Pt, Ra, Rh, Sn, Sr, V and Zn, said method comprising: (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≥½(w-x); a calcined product of said compound and mixtures thereof; and (b) separating the substance from the solution.
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