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:
Mar. 15, 2022
Filed:
Oct. 06, 2017
The Procter & Gamble Company, Cincinnati, OH (US);
Nippon Shokubai Co., Ltd., Osaka, JP;
Juan Estaban Velasquez, Cincinnati, OH (US);
Dimitris Ioannis Collias, Cincinnati, OH (US);
Jane Ellen Godlewski, Cincinnati, OH (US);
Motosuke Imada, Osaka, JP;
Koji Shingubara, Osaka, JP;
Masashi Tonoya, Osaka, JP;
Shinji Kanbara, Osaka, JP;
Masaki Okada, Osaka, JP;
Tomoharu Oku, Osaka, JP;
Hideaki Tsuneki, Osaka, JP;
Masanori Nonoguchi, Osaka, JP;
THE PROCTER & GAMBLE COMPANY, Cincinnati, OH (US);
NIPPON SHOKUBAI CO., LTD., Osaka, JP;
Abstract
The present invention aims to provide a regeneration method capable of sufficiently restoring the catalytic performance of a solid catalyst used in a dehydration reaction of lactic acid and derivatives thereof. The present invention relates to a method for regenerating a solid catalyst used in a dehydration reaction of lactic acid and derivatives of lactic acid, the method including a contacting step of bringing a solid catalyst containing a component that forms a molten salt in the presence of steam into contact with oxygen and steam under pressure.