Process for producing gallium-containing solution from aluminum smelting dust

Patent · Tue Feb 16 00:00:00 EST 1988

OSTI ID:5099691

Ikeda, H; Matsui, S; Era, A

A process for producing a gallium-containing solution from aluminum smelting dust is described comprising mixing aluminum smelting dust with 5 to 50% by weight of an alkaline flux selected from the group consisting of sodium carbonate, sodium hydroxide, potassium carbonate, potassium hydroxide and mixtures thereof, heating the mixture to a temperature sufficient to roast the mixture without fusing the mixture, leaching the roasted mixture at a temperature of 80/sup 0/C. to 100/sup 0/C. with a mineral acid selected from the group consisting of sulfuric acid, hydrochloric acid, nitric acid and mixtures thereof to preferentially solubilize gallium from other material in the roasted mixture, and filtering the leached mixture to separate the solubilized gallium solution therefrom.

• Assignee: Mitsui Aluminum Co., Ltd., Tokyo
• Patent Number(s): US 4725414
• OSTI ID: 5099691
• Resource Relation: Patent File Date: Filed date 7 May 1987
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKALINE EARTH METALS
DISSOLUTION
DUSTS
GALLIUM
PRODUCTION
ACIDIFICATION
ALUMINIUM
CHEMICAL REACTION YIELD
HYDROCHLORIC ACID
LEACHING
MEDIUM TEMPERATURE
NITRIC ACID
POTASSIUM CARBONATES
POTASSIUM HYDROXIDES
ROASTING
SMELTING
SODIUM CARBONATES
SODIUM HYDROXIDES
SULFURIC ACID
WASTE PROCESSING
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMICAL REACTIONS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
MANAGEMENT
METALS
OXIDATION
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
PROCESSING
SEPARATION PROCESSES
SODIUM COMPOUNDS
WASTE MANAGEMENT
YIELDS
400201* - Chemical & Physicochemical Properties