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Method for product isolation and catalyst recovery in aluminum chloride catalyzed isomerization of sym-octahydrophenanthrene to sym- octahydroanthracene
Method for product isolation and catalyst recovery in aluminum chloride catalyzed isomerization of sym-octahydrophenanthrene to sym- octahydroanthracene
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机译:氯化铝催化的间八氢菲异构化为八氢蒽的产物分离和催化剂回收的方法
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摘要
A method is disclosed for extracting sym-octahydroanthracene (s-OHA) from a product isomer mixture formed by the aluminum chloride catalyzed isomerization of sym-octahydrophenanthrene (s-OHP). Isolation of the s- OHA product isomer is accomplished by contacting the reaction product mixture with a specified liquid hydrocarbon solvent into which the s-OHA product isomer and unconverted s- OHP isomer dissolve and separate from a residue. The undissolved residue comprises a complex made up of aluminum chloride catalyst and small amounts of the s-OHA and s-OHP isomers. This catalyst complex may be recycled into a fresh starting mixture of s-OHP isomer for catalysis of a subsequent s-OHP isomerization reaction.
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