Title: Process for preparing viscosity-gradied asphalt oxide product
Application Number: 96120015 Application Date: 1996.10.09
Publication Number: 1178822 Publication Date: 1998.04.15
Approval Pub. Date: Granted Pub. Date: 2001.12.19
International Classifi-cation: C10C3/04
Applicant(s) Name: Fushun Petrochemical Inst., China Petrochemical Co Address: 113001
Inventor(s) Name: Ning Aimin
Attorney & Agent: li wei
Abstract:
     During the preparation of viscosity graded asphalt oxide product, at least two viscosity values corresponding to different times in initial oxidation stage are taken and used to draw line in logarithmic coordinate, and the said line is extended to cross the required 60 deg. c viscosity value and so as t find out the corresponding time value as required oxidation period. In this way, oxidation period is predicted to obtain asphalt product with requied viscosity.
Time: 10