Recovery of tungsten, scandium, iron, and manganese from tungsten bearing material

Patent · Tue Feb 28 00:00:00 EST 1989

OSTI ID:6227919

Vanderpool, C D; Ladd, J A; MacInnis, M B; Fedorchak, M A

A process is described for separating tungsten, from scandium, iron, and manganese in tungsten bearing material, the process comprising: digesting the material in sufficient sulfuric acid at a temperature of at least about 80/sup 0/C for a sufficient time in the presence of coal as a reducing agent to form a digestion solution containing the major portion of the scandium, iron and manganese and a digestion residue containing the major portion of the tungsten; and separating the digestion solution from the digestion residue.

• Assignee: GTE Products Corp., Stamford, CT
• Patent Number(s): US 4808384
• OSTI ID: 6227919
• Resource Relation: Patent File Date: Filed date 21 Dec 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
TUNGSTEN COMPOUNDS
DEMETALLIZATION
ACIDIFICATION
COAL
IRON
MANGANESE
MEDIUM TEMPERATURE
RECOVERY
REDUCTION
SCANDIUM
SEPARATION PROCESSES
SULFURIC ACID
TUNGSTEN
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360101* - Metals & Alloys- Preparation & Fabrication
400201 - Chemical & Physicochemical Properties