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Study on Titanium Chlorination Solid Wastes.

PB88159801

Publication Date	1987
Personal Author	Krishnaswamy, R.; Parker, N. H.
Page Count	292
Abstract	The report presents the conceptual designs and the results of tests on processes used to recover titanium from solid waste. Recoveries of 80 to 88 pct of the titanium in the waste as a concentrate of 94 to 99 pct titanium dioxide were achieved, reducing the amount of final waste effluent to less than 40 pct of current quantities. It was estimated that a 1,000 lb/h plant, with an installed cost of $888,000, would recover about 1,320 tons of titanium minerals a year, representing a revenue of $607,200. Allowing for operating expenses, return on investment would be 28 pct. The technical feasibility of pyrohydrolysis as an alternative final effluent treatment was established. Conceptual designs of pyrohydrolysis pelletization of concentrates, secondary chlorinator, and treatment of currently ponded tailings are presented. Overall treatment resulting in low quantities of inert, nontoxic, and nondusty final solid waste, reuseable titanium mineral concentrates, and maximum recycle of process water is also discussed.
Keywords	Titanium recovery Solid wastes Chlorination Recovery Pyrohydrolysis Pelletization Secondary chlorinators Ponded waste treatment Heavy metals
Source Agency	Bureau of Mines
NTIS Subject Category	68C - Solid Wastes Pollution & Control 71N - Nonferrous Metals & Alloys 43F - Environment
Corporate Authors	Krispar Technologies, Inc., Glendale, CA.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Research rept.,
NTIS Issue Number	198810
Contract Number	J0145046

Study on Titanium Chlorination Solid Wastes.

Study on Titanium Chlorination Solid Wastes.
PB88159801

Publication Date	1987
Personal Author	Krishnaswamy, R.; Parker, N. H.
Page Count	292
Abstract	The report presents the conceptual designs and the results of tests on processes used to recover titanium from solid waste. Recoveries of 80 to 88 pct of the titanium in the waste as a concentrate of 94 to 99 pct titanium dioxide were achieved, reducing the amount of final waste effluent to less than 40 pct of current quantities. It was estimated that a 1,000 lb/h plant, with an installed cost of $888,000, would recover about 1,320 tons of titanium minerals a year, representing a revenue of $607,200. Allowing for operating expenses, return on investment would be 28 pct. The technical feasibility of pyrohydrolysis as an alternative final effluent treatment was established. Conceptual designs of pyrohydrolysis pelletization of concentrates, secondary chlorinator, and treatment of currently ponded tailings are presented. Overall treatment resulting in low quantities of inert, nontoxic, and nondusty final solid waste, reuseable titanium mineral concentrates, and maximum recycle of process water is also discussed.
Keywords	Titanium recovery Solid wastes Chlorination Recovery Pyrohydrolysis Pelletization Secondary chlorinators Ponded waste treatment Heavy metals
Source Agency	Bureau of Mines
NTIS Subject Category	68C - Solid Wastes Pollution & Control 71N - Nonferrous Metals & Alloys 43F - Environment
Corporate Authors	Krispar Technologies, Inc., Glendale, CA.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Research rept.,
NTIS Issue Number	198810
Contract Number	J0145046