Title: Method for increasing soluble composition of toluene insoluble pyridine in asphalt
Application Number: 99117613 Application Date: 1999.08.18
Publication Number: 1285389 Publication Date: 2001.02.28
Approval Pub. Date: Granted Pub. Date: 2002.08.14
International Classifi-cation: C10C3/02
Applicant(s) Name: Shanxi Inst. of Coal Chemistry, Chinese Academy of Address: 030001
Inventor(s) Name: Liu Lang, Zhi Linjie
Attorney & Agent: wei shuwei
Abstract:
     To raw material asphalt 5-15% of toluene-p-sulfonic acid is added, they are uniformly mixed and placed in reactor, then the nitrogen gas is introduced, and the temp. is risen to 150-250 deg.C, and stirred and reacted for 5-20 hr, and naturally cooled so as to obtain the asphalt whose toluene insoluble and pyridine soluble component content is high. Said invented method is simple, raw material source is extensive, it can expand application of asphalt.
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