Title:
A PROCESS FOR MANUFACTURING POTASSIUM SULFATE FERTILIZER AND OTHER METAL SULFATES
Document Type and Number:
WIPO Patent Application WO2003020663
Kind Code:
A8
Abstract:
A new process of preparing potassium sulfate fertilizer and other metal sulfates from the chlorides and other halides of these metals. The process utilizes the discovery that sulfur dioxide or trioxide, when introduced as fluidizing medium into shallow beds (10) of the halide salts (11) at moderately elevated temperatures (1000 degrees F - 1150 degrees F) in a counter current process results in the conversion of the metal halides into metal sulfates and the halide gas.
Inventors:
RIGBY WILLIAM J (US)
COCHRAN KEITH D
HOLT TIMOTHY G
COCHRAN KEITH D
HOLT TIMOTHY G
Application Number:
PCT/US2001/027160
Publication Date:
April 08, 2004
Filing Date:
August 29, 2001
Export Citation:
Assignee:
RIGBY WILLIAM J (US)
International Classes:
B01J8/00; C01D5/04; B01J8/12; B01J8/18; B01J8/28; B01J8/30; C01B17/20; C01B17/96; C01D5/00; C01D5/02; C01F11/46; C05D1/02; C05D3/00; C05D9/00; C05D; (IPC1-7): C05D9/00
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