Removal of Zn or Cd and cyanide from cyanide electroplating wastes
Patent
·
OSTI ID:7078908
A method is described for the efficient stripping of stable complexes of a selected quaternary amine and a cyanide of Zn or Cd. An alkali metal hydroxide solution such as NaOH or KOH will quantitatively strip a pregnant extract of the quaternary ammonium complex of its metal and cyanide content and regenerate a quaternary ammonium hydroxide salt which can be used for extracting further metal cyanide values.
- Assignee:
- Energy Research and Development Administration
- Patent Number(s):
- US 4026790
- OSTI ID:
- 7078908
- Country of Publication:
- United States
- Language:
- English
Similar Records
Removal of Zn or Cd and cyanide from cyanide electroplating wastes
Removal of Zn or Cd and cyanide from cyanide electroplating wastes
Removal and recovery of cyanide and zinc from electroplating wastes by solvent extraction
Patent
·
Tue May 31 00:00:00 EDT 1977
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OSTI ID:862841
Removal of Zn or Cd and cyanide from cyanide electroplating wastes
Patent
·
·
OSTI ID:7187987
Removal and recovery of cyanide and zinc from electroplating wastes by solvent extraction
Journal Article
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Sun Aug 01 00:00:00 EDT 1976
· Plat. Surf. Finish.; (United States)
·
OSTI ID:7311309
Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ALKALI METALS
CADMIUM
CHEMICAL REACTIONS
CYANIDES
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
INDUSTRIAL WASTES
MANAGEMENT
METALS
OXYGEN COMPOUNDS
PROCESSING
REMOVAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
ZINC
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ALKALI METALS
CADMIUM
CHEMICAL REACTIONS
CYANIDES
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
INDUSTRIAL WASTES
MANAGEMENT
METALS
OXYGEN COMPOUNDS
PROCESSING
REMOVAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
ZINC