发明授权
US3928170A Method for manufacturing petroleum pitch having high aromaticity 失效
制造具有高芳香度的石油沥青的方法

Method for manufacturing petroleum pitch having high aromaticity
摘要:
Method of producing a pitch suitable for a binder, said method comprising bringing petroleum base residual oil into direct contact with a non-oxidative gaseous heat transfer medium to subject said oil to cracking poly-condensation.
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