Titanium-containing catalyst composition and processes therefor and therewith

US6066714A · kind A · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Donald Edward Putzig · Newark, US
• Edward Francis McBride · Wilmington, US
• Hiep Do · Somerville, US
• James Arthur Trainham · Newark, US
• Hermann Ludwig Jaeger · Hamm, DE
• Heiner Schulte · Munster, DE

Key dates

• Filing date: Apr 15, 1999
• Grant date: May 23, 2000
• Expiry date: Apr 15, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/82
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst composition is disclosed. The composition comprises a titanium compound, a phosphorus compound, an amine, a solvent and optionally a cocatalyst in which the phosphorus compound has a formula selected from the group consisting of (R.sup.1 O).sub.x (PO)(OH).sub.3-x, (R.sup.1 O).sub.y (P.sub.2 O.sub.3)(OH).sub.4-y, and combinations thereof; the amine is a tertiary amine; each R.sup.1 is independently a linear or branched alkyl radical containing from 1 to about 20 carbon atoms per radical; x is 1 or 2; and y is 1, 2, or 3; and the cocatalyst can be a cobalt/aluminum catalyst, an antimony compound, or combinations thereof. Also disclosed is a process for producing the composition. The process comprises combining a titanium compound, a phosphorus compound, a solvent, an amine, a solvent, and optionally a cocatalyst. The phosphorus compound, amie, and solvent are the same as those disclosed above. Further disclosed is a process for using the composition which comprises contacting a carbonyl compound, in the presence of the composition, with an alcohol under a condition suitable for esterification, transesterification, polymerization, or combinations thereof.