Acrolein production method and acrylic acid production method
AssigneeShowa Denko K.K.
InventorsTakanori Aoki, Norihide Arai
Life of this patent
Estimating the term…
Abstract
Disclosed are an acrolein production method capable of producing acrolein from a glycerin mixture including either one or both of a fatty acid and a fatty acid salt, a glycerin; a fatty acid ester, and the like with a little consumption of energy, and an acrylic acid production method. Specifically disclosed is an acrolein production method having the steps of: dehydrating glycerin in the glycerin mixture to produce an acrolein mixture including acrolein; either one of a fatty acid and a fatty acid salt, and the like; and collecting acrolein from the acrolein mixture. Also specifically disclosed is an acrylic acid production method having the step of reacting acrolein produced by the acrolein production method with molecular oxygen.
Claims10
An acrolein production method comprising:
- performing, either concurrently or sequentially,
- (1) a step of dehydrating a glycerin mixture comprising the following (i) and (ii):
- (i) glycerin;
- and
- (ii) at least one selected from the group consisting of:
- a glyceride;
- either one or both of a fatty acid and a fatty acid salt;
- and a fatty acid ester, to produce an acrolein mixture comprising the following (iii) and (iv):
- (iii) acrolein;
- and
- (iv) at least one selected from the group consisting of:
- a glyceride;
- a fatty acid ester;
- and either one or both of a fatty acid and a fatty acid salt;
- and
- (2) a step of collecting acrolein from the acrolein mixture.
Dependencies are inferred from the claim text.