Composite metal catalyst composition, and method and apparatus for preparing 1,4-cyclohexanedimethanol using same

Abstract

Disclosed are a composite metal catalyst composition capable of increasing efficiency and economic feasibility of a reaction through simplification of a reaction process, and providing 1,4-cyclohexanedimethanol with high purity for a shorter time while minimizing byproducts; and a method and apparatus for preparing 1,4-cyclohexanedimethanol with high purity using the same. The present invention provides a composite metal catalyst composition for converting an aromatic dicarboxylic acid into an alicyclic diol compound, the composition containing: a first metal catalyst including a palladium (Pd) compound; and a second metal catalyst including a ruthenium (Ru) compound, a tin (Sn) compound, and a platinum (Pt) compound, and a method and apparatus for preparing 1,4-cyclohexanedimethanol using the same.

Description

technical field [0001] The present invention relates to a composite metal catalyst composition and its use for the preparation of 1,4-cyclohexanedimethanol method and device, and more particularly, to a composite metal catalyst composition, which can increase the reaction rate by further simplifying the reaction process efficiency and economic efficiency, and can provide high-purity 1,4-cyclohexanedimethanol in a short period of time while minimizing by-products, and can use this composite metal catalyst composition to provide high-purity 1,4-cyclohexanedimethanol Preparation method and device of hexanedimethanol. Background technique [0002] Conventional methods for producing 1,4-cyclohexanedimethanol can be classified into two methods. One method is a method of synthesizing 1,4-cyclohexanedimethanol through 1,4-dimethylcyclohexanedicarboxylate using dimethyl terephthalate under high temperature and pressure conditions, and another One method is a method of synthesizing ...

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Problems solved by technology

[0012] Non-Patent Document 1 (Journal of Organic Chemistry, 31(10), 3438-9, 1996) discloses a method in which the 2 or lower hydrogen pressure conditions, in the presence of rhodium and alumina catalysts, hydrogenation of terephthalic acid in aqueous solution, after removing the catalyst from the reactants by high-temperature filtration, extracting the obtained reactants with chloroform, And 1,4-cyclohexanedimethanol is obtained with a yield of 90%, however, since chloroform is used as an extraction solution after the reaction, environmental problems are generated, and additional recovery equipment is required, therefore, in the use of this method There are restrictions in

[0013] Non-Patent Document 2 (Applied Catalysis A: General 154(1997) 75-86) discloses that at 230°C and 100kg / cm 2 The method of using Ru-Sn metal to obtain 90% or more of 1,4-cyclohexanedimethanol, but because there is a rapid decline in the yield of cyclohexanedimethanol when the catalyst is reused more than 5 times disadvantages, so its practical application may be difficult

[0014] Non-Patent Document 3 (Chem.Eur J.2009,15,6953-6963) discloses that by heating at 60°C and 100kg / cm 2 Under the use of ruthenium catalyst, the method of making terephthalic acid react for 24 hours to obtain 1,4-cyclohexanedicarboxylic acid, but because the reaction time is too long and lithium aluminum hydride (LiAlH 4 ) as an alkali metal (where commercialization of the process is difficult), so its application may be difficult

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