Method for producing 2,6-dmn from mixed dimethylnaphthalenes...

Details Method for producing 2,6-dmn from mixed dimethylnaphthalenes... Method for producing 2,6-dmn from mixed dimethylnaphthalenes...

C - Chemistry, Metallurgy

07

C

C07C 7/14 (2006.01) C07C 5/27 (2006.01) C07C 7/12 (2006.01) C07C 7/13 (2006.01) C07C 15/24 (2006.01)

Patent

CA 2315628

A method is disclosed to produce 2,6-dimethylnaphthalene (2,6-DMN), used for the production of polyethylene naphthalate, at high purity and high yield from a mixture of dimethylnaphthalene isomers without limitation to the specific isomers present in the feed by a series of fractionation, crystallization and adsorption steps.

On décrit un procédé de production de 2,6-diméthylnaphtalène (2,6-DMN) qu'on utilise pour produire du naphtalate de polyéthylène, d'une grande pureté et avec un rendement élevé, à partir d'un mélange d'isomères de diméthylnaphtalène sans limitation pour ce qui concerne les isomères spécifiques présents dans la charge, au moyen d'une série d'étapes de fractionnement, de cristallisation et d'adsorption.

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