- A process for preparing 1,4-cyclohexane dicarboxylic acid diester method
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A new method for preparing 1,4-cyclohexane dioctyl phthalate diester. The method comprises: using a succinate diester as a material, obtaining succinyl succinate diester by means of ester condensation, and hydrogenating and dehydrating the succinyl succinate diester to obtain 1,4-cyclohexane dioctyl phthalate diester. The present invention provides a new way for preparing 1,4-cyclohexane dioctyl phthalate diester, and has a very important development potential and a broad application perspective.
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Paragraph 0033 - 0037
(2017/01/12)
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- Selected cyclohexane -1,3-and -1,4-dicarboxylic acid esters
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Selected cyclohexane-1,3- and -1,4-dicarboxylic acid esters are described, as is their use as plasticizers in plastics and their preparation by hydrogenation of the corresponding isophthalic or terephthalic esters by bringing one or more of these isophthalic or terephthalic esters into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, at least one metal of the 8th transition group of the Periodic Table on its own or together with at least one metal of the 1st or 7th transition group of the Periodic Table, applied to a support, which comprises using a support having micropores.
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