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:
Apr. 06, 1999
Filed:
Jul. 31, 1997
Ahmad Soltani-Ahmadi, Radnor, PA (US);
Arco Chemical Technology, L.P., Greenville, DE (US);
Abstract
In the preparation of double metal cyanide complex catalysts, higher catalyst yield and higher catalyst activity may be obtained by recirculating a stream of catalyst dispersion to the reactor head space in the form of a spray, and by directing this or another circulation loop stream through a high shear in-line mixer. The process economics and catalyst purity may be increased by increasing the solids content of the wet centrifuge/filtration cake to higher solids by pressing the wet cake, preferably by diaphragm squeezing. The number of washes may be decreased thereby without affecting catalyst quality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile