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公开(公告)号：US09828526B2
公开(公告)日：2017-11-28
申请号：US14655172
申请日：2013-12-20
发明人： Andrey Nikolaevich Evdokimov , Larisa Mikhailovna Popova , Alexander Vyacheslavovich Kurzin , Alyona Dmitrievna Trifonova , Godfried Buisman
摘要： The instant invention relates to a method for purifying a rosin-containing material from sulfur compounds. In particular the method comprises a) contacting a rosin-containing material comprising rosin and sulfur compounds with an oxidizing agent at a temperature from 0 to 60° C. for 10 minutes to 3 hours, to oxidize at least part of the sulfur compounds; and b) separating the rosin from the oxidized sulfur compounds; to obtain a purified rosin-containing material. The invention also relates to the purified rosin-containing materials, the preparation of products derived therefrom and the use of the purified rosin-containing materials and derived products.
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