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:
Jul. 17, 2012
Filed:
Jan. 22, 2009
Process and apparatus for separating and recovering waste alkali from cyclohexane oxidation solution
Zhishan Bai, Shanghai, CN;
Zhuoqun Qian, Shanghai, CN;
Ji MA, Shanghai, CN;
Ping Zhou, Shanghai, CN;
Yanhong Zhang, Shanghai, CN;
Hualin Wang, Shanghai, CN;
Zhishan Bai, Shanghai, CN;
Zhuoqun Qian, Shanghai, CN;
Ji Ma, Shanghai, CN;
Ping Zhou, Shanghai, CN;
Yanhong Zhang, Shanghai, CN;
Hualin Wang, Shanghai, CN;
East China University of Science and Technology, Shanghai, CN;
Abstract
A process and an apparatus for separating and recovering waste alkali from a cyclohexane oxidation solution are provided. A gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process.