B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/108, 260/482
B01J 31/12 (2006.01) B01J 27/16 (2006.01) B01J 37/03 (2006.01) C07C 51/353 (2006.01) C07C 57/03 (2006.01)
Patent
CA 1205449
ABSTRACT OF THE DISCLOSURE A process for preparing a catalyst composition wherein a Metal Hydrocarboxide I, such as aluminum sec- butoxide, a Metal Hydrocarboxide II, such as zirconium butoxide, an acidic phosphorus-oxygen composition, such as phosphoric acid, and water, are reacted in the presence of a liquid organic medium, such as acetone, to form a catalyst precursor composition, which is then calcined to form the catalyst, is disclosed. The catalyst is useful for condensing carboxylic acids or their ester with aldehydes or acetals to synthesize .alpha.,.beta.-ethylenically unsaturated acids or esters, such as methylmethacrylate.
438647
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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