Title:
METHOD OF REDUCING FORMATION OF PRECIPITATES IN SOLVENT RECOVERY SYSTEM
Document Type and Number:
WIPO Patent Application WO2002004529
Kind Code:
A3
Abstract:
A method of removing at least one inert reaction diluent and/or wash diluent from a waste stream from a catalyst precursor production unit, where the waste stream includes at least one reaction diluent or wash solvent, at least one titanium alkoxide, at least one magnesizm alkoxide, and at least one alkanol by contacting the waste stream with a solubilization solvent, and then subjecting the resulting stream to distillation. The method prevents precipitation of solid titanium and magnesium containing species during distillation.
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Inventors:
ZUM MALLEN MICHAEL PHILIP
Application Number:
PCT/US2001/019042
Publication Date:
June 13, 2002
Filing Date:
June 14, 2001
Export Citation:
Assignee:
UNION CARBIDE CHEM PLASTIC (US)
International Classes:
B01J31/02; B01J31/12; B01J31/40; C07C9/10; C07C9/15; C07C15/06; C07C7/04; C07C15/08; C07C17/383; C07C19/03; C07C25/02; C07C25/06; C08F4/64; C08F10/00; (IPC1-7): C08F10/00; C08F4/64; C08J11/02; B01J31/12; B01J31/40; B01D3/14
Foreign References:
US5242549A | 1993-09-07 | |||
US5962361A | 1999-10-05 | |||
US5948212A | 1999-09-07 |
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