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US 9,969,658 B2Granted
Materials and methods for producing alkenes and derivatives thereof
AssigneeInvista North America S.A.R.L.
InventorsDaniel Pienaar, Alex Conradie
Life of this patent
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Abstract
The present disclosure relates to processes for production of alkene products from their alkene precursors, such as 3-hydroxyacid and alcohols, via either (1) high temperature reactive distillation with steam contact at optimal pH, (2) solvent extraction and Mulzer dehydration, (3) solid phase adsorption, desorption into an organic solvent and catalytic reaction and (4) high temperature reactive distillation with steam contact at optimal pH followed by catalytic conversion.
Claims16
A method for preparing an alkene product comprising:
- providing an alkene precursor, wherein the alkene precursor is a 3-hydroxyacid or an alcohol produced via fermentation in a fermentation media, wherein the 3-hydroxyacid is mevalonate, 3-methyl-3-hydroxybutyrate, 3-hydroxypent-4-enoate, 3-methyl-3-hydroxypent-4-enoate or 4-methyl-3-hydroxypent-4-enoate, and the alcohol is 3 methyl-2-buten-1-ol, 3-methyl-3-buten-1-ol, 3-buten-2-ol, 3-methyl-3-buten-2-ol or 2-methyl-3-buten-2-ol;
- distilling the alkene precursor using reactive distillation with steam contact;
- and
- forming at least one alkene product comprising at least one of isoprene, 1,3-butadiene and isobutene.
1 more element
A method for preparing an alkene product comprising:
- providing an alkene precursor, wherein the alkene precursor is a 3-hydroxyacid or an alcohol produced via fermentation in a fermentation media, wherein the 3-hydroxyacid is mevalonate, 3-methyl-3-hydroxybutyrate, 3-hydroxypent-4-enoate, 3-methyl-3-hydroxypent-4-enoate or 4-methyl-3-hydroxypent-4-enoate, and the alcohol is 3 methyl-2-buten-1-ol, 3-methyl-3-buten-1-ol, 3-buten-2-ol, 3-methyl-3-buten-2-ol or 2-methyl-3-buten-2-ol;
- distilling the alkene precursor using reactive distillation with steam contact;
- and
- converting the alkene precursor to an alkene by catalytic reaction, wherein the alkene comprises at least one of isoprene, 1,3-butadiene and isobutene.
1 more element
Dependencies are inferred from the claim text.