Patent ID: 11912657
Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  Y | IPC C

Claim 4:
5. A method for preparing a vegetable oil based blockage inhibitor, wherein the method comprises the following steps:
(1) subjecting a non-conjugated vegetable oil to a haptoreaction with an alkali or an alcohol solution of an alkali under isomerization reaction condition;
(2) acidifying and washing a product obtained from the haptoreaction, and then separating out an aqueous phase to obtain a modified vegetable oil fatty acid;
(3) contacting the modified vegetable oil fatty acid with an unsaturated dialdehyde under Diels-Alder addition reaction condition to form a mixture; and
(4) removing unreacted raw materials from the mixture obtained from step (3).