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. 19, 1988
Filed:
Dec. 30, 1986
Edward T Marquis, Austin, TX (US);
Howard F Payton, Austin, TX (US);
Texaco Chemical Company, White Plains, NY (US);
Abstract
An improved procedure for making molybdenum/ethylene glycol complexes useful as epoxidation catalysts wherein the cycle time necessary for catalyst preparation is significantly reduced by preparing a mixture of undiluted ethylene glycol with undiluted ammonium dimolybdate in the molar ratio of about 7 to about 20 moles of ethylene glycol per gram atom of molybdenum, heating the mixture from ambient conditions to a temperature of about 25.degree. to about 150.degree. C. over a 5 to 100 minute period while simultaneously reducing the pressure to about 5 to about 100 mm Hg and, after an appropriate holding time, if necessary, returning the mixture to ambient conditions and recovering an essentially solids free clear catalytically active solution of molybdenum/ethylene glycol complex in unreacted ethylene glycol having a molybdenum content of about 10 to 15 wt. % of molybednum.