US Patent 7479567 Reactive distillation of chlorosilanes
Patent 7479567 was granted and assigned to Dow Corning on January, 2009 by the United States Patent and Trademark Office.
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Patent abstract
Chlorosilanes such as dimethyldichlorosilane are hydrolyzed in a first super-azeotropic hydrochloric acid distillation column A to produce cyclosiloxanes, chlorosiloxanes, and hydrogen chloride gas. The cyclosiloxanes and the chlorosiloxanes are washed and separated according to their volatility in a second sub-azeotropic hydrochloric acid distillation column B, to produce a substantially chloride free volatile cyclosiloxane stream and a substantially chloride free non-volatile siloxane stream. The process is substantially chloride efficient.
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US Patent 07479567 Reactive distillation of chlorosilanes US Patent 7479567 Reactive distillation of chlorosilanes
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Patent Number
0747956700
Patent Number
747956700
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
074795670
Date of Patent
January 20, 2009
0Patent Application Number
118839870
Date Filed
March 15, 2006
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074795670
Date of Patent
January 20, 2009
0Patent Application Number
118839870
Date Filed
March 15, 2006
0Official Website
Patent Primary Examiner
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US Patent 07479567 Reactive distillation of chlorosilanes
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07479567
Date of patent
January 20, 2009
Patent application number
11883987
Date Filed
March 15, 2006
Patent primary examiner
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