Catalyst composition comprising a titanium compound, a...

B - Operations – Transporting – 01 – J

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B01J 31/12 (2006.01) B01J 31/02 (2006.01) B01J 31/24 (2006.01) B01J 31/26 (2006.01) C08G 63/85 (2006.01)

Patent

CA 2321613

A catalyst composition is disclosed. The composition comprises a titanium compound, a solubility promoter selected from the group consisting of orthosilicates, orthozirconates, and combinations thereof, a phosphorus source, a solvent, and optionally a sulfonic acid, a cocatalyst, or both. The cocatalyst can be a cobalt/aluminum catalyst, and antimony compound, or combinations thereof. Also disclosed is a process for producing the composition. The process comprises combining a titanium compound, a solubility promoter, a phosporous source, a solvent, and optionally a sulfonic acid, a cocatalyst, or both. 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.

L'invention concerne une composition de catalyse qui comprend ce qui suit: un composé à base de titane; un promoteur de solubilité sélectionné dans le groupe constitué d'orthosilicates, d'orthozirconates et de leurs combinaisons; une source de phosphore; un solvant; et éventuellement un acide sulfonique ou un cocatalyseur, ou les deux. Le cocatalyseur peut être un catalyseur à base de cobalt/d'aluminium, un composé à base d'antimoine ou leurs combinaisons. L'invention concerne également un procédé pour fabriquer la composition en question. Le procédé consiste à combiner un composé à base de titane, un promoteur de solubilité, une source de phosphore, un solvant et éventuellement un acide sulfonique, un cocatalyseur ou les deux. En outre, l'invention a pour objet un procédé d'utilisation de la composition qui consiste à mettre en contact un composé carbonyle avec un alcool en présence de la composition, et ce dans des conditions propices à l'estérification, à la transestérification, à la polymérisation ou à leurs combinaisons.

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