Title: Prodn. method for No.30 construction asphalt
Application Number: 94100637 Application Date: 1994.01.18
Publication Number: 1093394 Publication Date: 1994.10.12
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10C1/00
Applicant(s) Name: Daqing Petro-Chemical Plant Petroleum Refinery, Ch Address: 163711
Inventor(s) Name: Wang Zhili, Shan Yongli
Attorney & Agent: GAO YANGXIAN MA HONGFA
Abstract:
     The process of this invention includes: residuum formed by reduced pressure is extracted with solvent, lubricating oil and No.100 A.B. petroleum bitumen are obtained. At same time, heavy bituminous pitch of high carbon residue is also obtained. When it is treated, by oxidation, No.30 petroleum bitumen for building is yielded.
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