TALL OIL FATTY ACID IMIDAZOLINE SULFONATE SURFACTANT AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2021/047588

A1

Disclosed is a tall oil fatty acid imidazoline sulfonate surfactant. A main component of the surfactant has a following structural formula: (I), wherein R is tall oil fatty acid alkyl. An intermediate of the tall oil fatty acid imidazoline sulfonate surfactant prepared by the present invention is low in diamide content, and the conversion rate of tall oil fatty acid is ≥ 98.5%. The product is low in stimulation, biodegradability is 100% in 7 days, the atom utilization rate is high, and alkali resistance and acid resistance are high. The surfactant has good appearance and stability, has excellent wax removal and corrosion inhibition effects, and has excellent emulsifying and oil stain stripping capabilities on mineral oils such as stamping oil, antirust oil, cutting oil and the like. A new route is provided for deep processing of tall oil products in China; the utilization rate of tall oil products can be greatly improved; the additional value of products can be improved; and notable economic benefits and social benefits can be achieved.

ZHANG WEI (CN)
ZHANG GAOFEI (CN)
WANG FENGSHOU (CN)
LIU BING (CN)
XU FULI (CN)
SI LILI (CN)
LI RUI (CN)
HAN JIANYING (CN)
TAO YUAN (CN)
LI SEN (CN)
WANG CHUANXIN (CN)
WU XIANDONG (CN)

PCT/CN2020/114502

March 18, 2021

September 10, 2020

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CHINA RES INSTITUTE OF DAILY CHEMISTRY CO LTD (CN)
SHANGHAI FINE CHEMICAL CO LTD (CN)

C07C309/14; C07C303/32; C09K23/24; C09K23/38

CN110721634A	2020-01-24
CN110694546A	2020-01-17
US2543852A	1951-03-06
US4414127A	1983-11-08
CN109797047A	2019-05-24
CN108727268A	2018-11-02

SHANGHAI SUNHOLD LAW FIRM (CN)

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