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.:
Date of Patent:
Feb. 07, 2006
Filed:
Nov. 29, 2004
Koshiro Shimazu, Shizuoka, JP;
Yoshiaki Tateno, Shizuoka, JP;
Mitsuo Magara, Shizuoka, JP;
Naoki Okamoto, Chiba, JP;
Takao Ohshima, Saitama, JP;
Minoru Nagasawa, Saitama, JP;
Hideki Sakamura, Gunma, JP;
Koshiro Shimazu, Shizuoka, JP;
Yoshiaki Tateno, Shizuoka, JP;
Mitsuo Magara, Shizuoka, JP;
Naoki Okamoto, Chiba, JP;
Takao Ohshima, Saitama, JP;
Minoru Nagasawa, Saitama, JP;
Hideki Sakamura, Gunma, JP;
Towa Chemical Industry Co., Ltd., Tokyo, JP;
Nikko Rica Corporation, Tokyo, JP;
Abstract
To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.