Chemistry of inorganic compounds – Silicon or compound thereof – Halogen containing
Reexamination Certificate
2008-04-07
2010-06-15
Nguyen, Ngoc-Yen M (Department: 1793)
Chemistry of inorganic compounds
Silicon or compound thereof
Halogen containing
C423S341000, C210S714000, C210S718000, C023S301000, C023S30500F
Reexamination Certificate
active
07736614
ABSTRACT:
A process for removing aluminum and other metal chlorides from liquid chlorosilanes with the steps of: introducing a source of seed into a source of impure liquid chlorosilanes, initiating the crystallization of aluminum and other metal chlorides on the seed from the liquid chlorosilanes in a first agitated vessel, passing the resulting mixture of liquid and solids through a cooler into a second agitated vessel for additional crystallization, transferring the resulting mixture of liquid and solids into a solids removal device, transferring the liquid with reduced solids content to a further process or vessel and transferring the liquid with high solids content into a waste concentration device, passing the resulting liquid with reduced solids content to a further process or vessel and passing the resultant liquid with very high solids content to a waste storage vessel with agitation.
REFERENCES:
patent: 3878291 (1975-04-01), Keller et al.
patent: 4130632 (1978-12-01), Braunsperger et al.
patent: 4676967 (1987-06-01), Breneman
patent: 4743344 (1988-05-01), Breneman et al.
patent: 5066472 (1991-11-01), Ruff et al.
patent: 2001/0053339 (2001-12-01), Kohler et al.
patent: 2004/0042949 (2004-03-01), Block et al.
patent: 2004/0047797 (2004-03-01), Block et al.
patent: 2006/0183958 (2006-08-01), Breneman
patent: 2007/0098612 (2007-05-01), Lord
patent: 2005-029428 (2005-02-01), None
patent: WO2006/054325 (2006-05-01), None
International Search Report and Written Opinion mailed Jul. 15, 2009 for International Application No. PCT/US2009/002000.
Lord Ltd., LP
Nguyen Ngoc-Yen M
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