Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1989-06-13
1990-07-10
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585833, 585860, C07C 7152
Patent
active
049408321
ABSTRACT:
A process for separating 2,6-dimethylnaphthalene from a 2,6-dimethylnaphthalene-containing mixture which comprises mixing said mixture with a complexing agent selected from the group consisting of bis(1,2,5)thiaziazolotetracyanoquinodimethane, (1,2,5)selenadiazotetrocyanonaphthoquinodimethane, (1,2,5)thiaziazolotetracyanonaphthoquinodimethane, 2,6-dichlorotetracyanoanthraquinodimethene, and 2,6-diiodotetracyanoanthraquinodimethane to thereby form a complex, separating a solid matter containing said complex; and decomposing the solid matter containing the same to thereby separate and collect an oil rich in the 2,6-dimethylnaphthalene. According to this process, 2,6-dimethylnaphthalene can be readily separated at a high selectivity. Further the complexing agent can be readily recovered and reused as such.
REFERENCES:
patent: 3665043 (1972-05-01), Davis et al.
patent: 3670039 (1972-06-01), Davis
patent: 3870745 (1975-03-01), Angstadt
patent: 3936509 (1976-02-01), Nagahama et al.
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Chemical Abstracts, No. 18, vol. 109, Oct. 31, 1988.
Chemical Abstracts, No. 1, vol. 110, Jan. 2, 1989.
Chemical Abstracts, No. 3, vol. 110, Jan. 16, 1989.
Fujii Hiroshi
Miyashi Tsutomu
Suzuki Takanori
Yamashita Yoshiro
Caldarola Glenn
Diemler William C.
Mitsubishi Oil Co., Ltd.
Tsutomu Miyashi
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