Patent ID: 9073846
Filing Date: 2015-07-07
Classification: B01J,C07C,Y02P

Abstract:
1. A process for producing an acrylate product, the process comprising the steps of: contacting an alkanoic acid or an ester thereof and an alkylenating agent over an aldol condensation catalyst in a reaction zone and under conditions effective to produce a crude product stream comprising acrylate product and alkylenating agent, and separating at least a portion of the crude product stream to form an alkylenating agent stream comprising at least 1 wt % alkylenating agent and an intermediate product stream comprising acrylate product wherein the aldol condensation catalyst comprises a multi-element oxide active material of the general formula: wherein: X X b ranges from 0.9 to 2.0 c ranges from 0.01 to 1, d ranges from 0 to 0.1, e ranges from 0 to 0.1, and n is the stoichiometric coefficient of the element oxygen as determined by the stoichiometric coefficients of the non-oxygen elements and the charge numbers thereof.