Processes for the Production of Acrylic Acids and Acrylates Using Multiple Reactors
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Oct 31, 2012
filing date -
Oct 31, 2012
priority date (Note) -
Abandoned
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Abstract
In one embodiment, the present invention relates to a process for producing an acrylate product comprising the step of providing a reaction system comprising at least one reaction zone and at least one regeneration zone. Each reaction zone and regeneration zone has a size and comprises a catalyst. A ratio of the combined size of the at least one reaction zone to the combined size of the at least one regeneration zone ranges between 1:1 to 6:1. The process further comprises the step of reacting, in the at least one reaction zone, a reaction mixture comprising an alkanoic acid and an alkylenating agent to form a crude acrylate product. The process further comprises the step of regenerating, in the at least one regeneration zone, the respective catalyst. The process further comprises the step of separating at least a portion of the crude acrylate products to form a purified acrylate product.
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