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U.S. Department of Energy
Office of Scientific and Technical Information

Microbial solubilization of phosphate

Patent ·
OSTI ID:5302906

A process is provided for solubilizing phosphate from phosphate containing ore by treatment with microorganisms which comprises forming an aqueous mixture of phosphate ore, microorganisms operable for solubilizing phosphate from the phosphate ore and maintaining the aqueous mixture for a period of time and under conditions operable to effect the microbial solubilization process. An aqueous solution containing soluble phosphorus can be separated from the reacted mixture by precipitation, solvent extraction, selective membrane, exchange resin or gravity methods to recover phosphate from the aqueous solution. 6 figures.

DOE Contract Number:
AC07-76ID01570
Assignee:
EG and G Idaho, Inc., Idaho Falls, ID (United States)
Patent Number(s):
A; US 5256544
Application Number:
PPN: US 7-826563
OSTI ID:
5302906
Country of Publication:
United States
Language:
English