cis,cis-1,2,4-시클로헥산트리카르본산결정의 제조방법

• Main Authors: SAITO SHINYA, KUMANO TATSUYUKI
• Format: Patent
• Language: Korean
• Published: 06.12.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

본 발명의 목적은, 고순도의 cis,cis-1,2,4-시클로헥산트리카르본산결정이 얻어지는, cis,cis-1,2,4-시클로헥산트리카르본산결정의 제조방법을 제공하는 것이다. 본 발명의 cis,cis-1,2,4-시클로헥산트리카르본산결정의 제조방법은, 하기 공정을 갖는다. 공정1: cis,cis-1,2,4-시클로헥산트리카르본산을 함유하는 원료수용액 중의 cis,cis-1,2,4-시클로헥산트리카르본산의 trans,trans-1,2,4-시클로헥산트리카르본산에 대한 질량비(cis/trans비)를 측정하고, cis/trans비가 10 이상인 정석용 원료수용액으로 하는 공정 공정2: 공정1에서 얻어진 정석용 원료수용액을 정석하는 공정 An object of the present invention is to provide a method for producing cis,cis-1,2,4-cyclohexanetricarboxylic acid crystals, from which high purity cis,cis-1,2,4-cyclohexanetricarboxylic acid crystals are obtained. The method for producing cis,cis-1,2,4-cyclohexanetricarboxylic acid crystals of the present invention comprises the following steps: Step 1: measuring a mass ratio (cis/trans ratio) of cis,cis-1,2,4-cyclohexanetricarboxylic acid to trans,trans-1,2,4-cyclohexanetricarboxylic acid in an aqueous starting material solution comprising the cis,cis-1,2,4-cyclohexanetricarboxylic acid to give an aqueous starting material solution for crystal precipitation having a cis/trans ratio of 10 or more; and Step 2: subjecting the aqueous starting material solution for crystal precipitation obtained in step 1 to crystal precipitation.