Title: Process for preparing middle phase asphalt
Application Number: 96122394 Application Date: 1996.12.20
Publication Number: 1185491 Publication Date: 1998.06.24
Approval Pub. Date: Granted Pub. Date: 2000.05.31
International Classifi-cation: C10C3/08,D01F9/145
Applicant(s) Name: Shanxi Coal-Chemistry Inst., Chinese Academy of Sc Address: 030001
Inventor(s) Name: Liu Lang, Song Huaihe
Attorney & Agent: wei lingqiu
Abstract:
     A method for preparing intermediate asphalt includes mixing aromatic compound, crosslinking agent and catalyst in the ratio of 1mol : 0.2 -1.0 mol : 5 -20 wt% (total wt.of aromatic compound and crosslinking agent), making them conduct crosslinking reaction to produce aromic oligomer which is then passed through heat treatment for 10-25 hours at 340-380 degree C to obtain a high-quality asphalt. Said invention features in simple process, high yield of asphalt, low softening point (220-290 degree C), good rheidity and high H/C ratio, which is suitable to being as raw material for preparing high-property asphalt-base carbon fiber new materials etc..
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