Purification of tall oil fatty acids by removing of stilbenes

被引：0
|
作者：
Andrey N. Evdokimov
Alexander V. Kurzin
Larisa M. Popova
Victorija B. Franchuk
机构：
[1] Saint Petersburg State University of Industrial Technologies and Design,
[2] Peter the Great Saint Petersburg Polytechnic University,undefined
[3] Russian Scientific Center “Applied Chemistry”,undefined
来源：
European Journal of Wood and Wood Products | 2021年 / 79卷
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摘要：
The composition of tall oil fatty acids includes rosin acids and unsaponifiable substances as impurities. The latter include stilbenes. The total content of stilbenes in tall oil and fatty acids can reach 1%. The presence of stilbenes contributes to the deterioration of fatty acids color during storage and production of some derivatives. The existing methods for removing stilbenes are based on the treatment of sorbents, formaldehyde and boron trifluoride etherate. The phosphorus pentoxide treatment has a purifying effect, which allowed reducing the pinosylvin ethers content to 0.05%.
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页码：1027 / 1029
页数：2
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