Process for the preparation of methyl or ethyl esters of...

Details Process for the preparation of methyl or ethyl esters of... Process for the preparation of methyl or ethyl esters of...

C - Chemistry, Metallurgy

07

C

260/482.4

C07C 69/54 (2006.01)

Patent

CA 1106394

Abstract of the Disclosure. A process for the preparation of methyl or ethyl esters of acrylic or methacrylic acid, which comprises reacting acrolein or methacrolein with oxygen or gases containing free oxygen and methanol or ethanol in the gas phase and in the presence of a catalyst selected from the group consisting of MoaVbMecOx , MoaWdMecOy and MoaVbWdMecOz , where Me denotes a chromium, manganese, iron, cobalt, nickel, copper, zinc, silver, cadmium, gold, mercury, sodium, barium, calcium, cerium, bismuth, thorium, uranium, lead, antimony, tin, phosphorus, or boron atom, a has a value of from 6 to 12, b has a value of from 1 to 6, c has a value of from 0 to 5, d has a value of from 1 to 6, x has a value of from 20.5 to 58.5, y has a value of from 21 to 61.5, and z has a value of from 23.5 to 76.5. The invention also relates to the above-mentioned catalysts for the execution of the process.

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