The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8197783 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 12, 2012

Filed:

Nov. 26, 2008
Applicants:

Nobuhisa Masuda, Yokkaichi, JP;

Noboru Tachino, Yokkaichi, JP;

Inventors:

Nobuhisa Masuda, Yokkaichi, JP;

Noboru Tachino, Yokkaichi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a method for separating and recovering conversion reaction gas, wherein after a conversion reaction process for producing trichlorosilane from hydrogen gas and silicon tetrachloride comprising; condensing step of cooling discharged gas, separating step of silicon tetrachloride from the condensed liquid, and recovering disilicon hexachloride. For example, the method includes a first distillation process for distilling trichlorosilane from the condensed liquid, a second distillation process for distilling silicon tetrachloride from residual liquid of the first distillation process, and a third distillation process for distilling disilicon hexachloride from residual liquid of the second distillation process.


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Masuda, Nobuhisa. (2012). Method for separating and recovering conversion reaction gas (U.S. Patent No. 8197783). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8197783

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