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European Journal of Wood and Wood Products

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16-02-2021 | Brief Original

Purification of tall oil fatty acids by removing of stilbenes

Authors: Andrey N. Evdokimov, Alexander V. Kurzin, Larisa M. Popova, Victorija B. Franchuk

Published in: European Journal of Wood and Wood Products | Issue 4/2021

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Abstract

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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Title: Purification of tall oil fatty acids by removing of stilbenes
Authors: Andrey N. Evdokimov
Alexander V. Kurzin
Larisa M. Popova
Victorija B. Franchuk
Publication date: 16-02-2021
Publisher: Springer Berlin Heidelberg
Published in: European Journal of Wood and Wood Products / Issue 4/2021
Print ISSN: 0018-3768
Electronic ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-021-01663-9

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