Separation of tungsten from rhenium

Patent · Tue Jul 08 04:00:00 EDT 1986

OSTI ID:5471401

Douglas, A D; Reilly, K T; MacInnis, M B; Powers, J A; Christini, J N

A process is described for separating tungsten from a solution containing tungstate and perrhenate ions, the process comprising: (a) reacting hydrochloric acid with the solution at a temperature of at least about 85/sup 0/C to form a solid containing essentially all of the tungsten and a liquor containing essentially all of the rhenium, the amount of the hydrochloric acid being sufficient to enable the liquor to be at least about 1.25 normal in hydrochloric acid after the solid has formed; and (b) separating the solid from the liquor.

• Assignee: GTE Products Corp., Stamford, CT
• Patent Number(s): US 4599223
• OSTI ID: 5471401
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACIDIFICATION
ELEMENTS
EXTRACTION
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MEDIUM TEMPERATURE
METALS
RHENIUM
SEPARATION PROCESSES
SOLIDS
SOLVENT EXTRACTION
TRANSITION ELEMENTS
TUNGSTATES
TUNGSTEN