Method for preparing heat-resisting pitch resin by using heavy residuum as raw material

The method for preparing bituminous resin by using heavy residuum includes the following steps: using furfuraldehyde as solvent to make liquid-liquid extraction of heavy residuum to enrich aromatic hydrocarbon fractions and obtain rich aromatic fraction and lean aromatic fraction; then making the ri...

Full description

Saved in:
Bibliographic Details
Main Authors YUZHEN ZHANG, YANSHENG GUO, QINGFANG ZHA
Format Patent
LanguageEnglish
Published 27.03.2002
Edition7
Subjects
CHEMISTRY
FUELS
LUBRICANTS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PYROLIGNEOUS ACID
TECHNICAL GASES CONTAINING CARBON MONOXIDE
WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
Online AccessGet full text

Cover

More Information
Summary:The method for preparing bituminous resin by using heavy residuum includes the following steps: using furfuraldehyde as solvent to make liquid-liquid extraction of heavy residuum to enrich aromatic hydrocarbon fractions and obtain rich aromatic fraction and lean aromatic fraction; then making the rich aromatic fraction, terephthalyl alcohol and benzaldehyde produce low-temp. synthesis reaction under the condition of methyl benzenesulfonic acid as catalyst to obtain B-stage bituminous resin; making the B-stage bituminous resin undergo the process of hardening reaction to obtain c-stage heat-resistant bituminous resin. The heat resistance of said invented bituminous resin is idnetical to that of optimum polyimide, in particular. It is superior to polyimide in heat resistance at high-temp. of 800 deg.c, and its cost is lower.
Bibliography:Application Number: CN2001141322