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:
Nov. 10, 2015
Filed:
Oct. 18, 2007
Applicants:
Kiyoshi Yoshida, Katsushika-ku, JP;
Tetsuo Koshitsuka, Tokyo, JP;
Kaoru Tsuyuki, Tokyo, JP;
Wakana Uesugi, Tokyo, JP;
Inventors:
Kiyoshi Yoshida, Katsushika-ku, JP;
Tetsuo Koshitsuka, Tokyo, JP;
Kaoru Tsuyuki, Tokyo, JP;
Wakana Uesugi, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 15/08 (2006.01); B01F 13/10 (2006.01); B01F 15/06 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); B01F 5/06 (2006.01); B01F 15/02 (2006.01);
U.S. Cl.
CPC ...
C01B 15/08 (2013.01); B01F 13/1016 (2013.01); B01F 15/065 (2013.01); B01J 19/0013 (2013.01); B01J 19/2415 (2013.01); B01F 5/06 (2013.01); B01F 2015/0221 (2013.01); B01J 2219/002 (2013.01); B01J 2219/00099 (2013.01); B01J 2219/00186 (2013.01); B01J 2219/00204 (2013.01); B01J 2219/00231 (2013.01); B01J 2219/00238 (2013.01);
Abstract
The invention provides a method for producing a peroxymonosulfuric acid solution with high stability, including the steps of mixing 35 mass % or more of hydrogen peroxide and 70 mass % or more of sulfuric acid to react them, cooling the reaction solution to 80° C. or lower within five minutes after initiation of the mixing step, and diluting the reaction solution with water four times or more as much as the reaction solution by mass.