Title: Recovery of tar alkali
Application Number: 85106456 Application Date: 1985.08.18
Publication Number: 1008714 Publication Date: 1987.02.18
Approval Pub. Date: Granted Pub. Date: 1993.06.02
International Classifi-cation: C10C1/04,C10C1/18
Applicant(s) Name: Shin Ni Steel Chemical Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: WANG SUNJIA
Abstract:
     The present invention relates to loading light oil of tar series into distillation tower to separate distillate with low boiling point, heavy oil distillate and light oil distillate. Tar alkali is recoveried by tar alkali extraction in which the main operation is pickling extraction with the obtained light oil distillate, in the mean time, the refined light oil distillate obtained by separating tar alkali will flow together with the said low boiling point distillate and is subjected to hydrogenation refining process. The recovery of tar alkali such as pyridine and alpha-methyl pyridine and of aromatic products such as benzene, methylbenzene and dimethylbenzene will be carried out effectively.
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