Method for purifying anhydrosugar alcohol-alkylene glycol composition

• Main Authors: IM JUN SEOP, YOO SEUNG HYUN, CHANG MIN JUNG, SONG GWANG SEOK, NOH JAE GUK
• Format: Patent
• Language: English; Korean
• Published: 30.06.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; GENERAL METHODS OF ORGANIC CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLYSACCHARIDES; SEPARATION; SUGARS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

The present invention relates to a method for purifying an anhydrosugar alcohol-alkylene glycol composition, and more specifically, to a method for purifying an anhydrosugar alcohol-alkylene glycol composition, which is an addition reaction product of an anhydrosugar alcohol composition and an alkylene oxide. The method is capable of providing an anhydrosugar alcohol-alkylene glycol composition with high quality by significantly improving storage stability of the anhydrosugar alcohol-alkylene glycol composition by performing purification using a weakly acidic cation exchange resin and a strong basic anion exchange resin sequentially. 본 발명은 무수당 알코올-알킬렌 글리콜 조성물의 정제 방법에 관한 것으로, 보다 상세하게는, 무수당 알코올 조성물과 알킬렌 옥사이드의 부가 반응 생성물인 무수당 알코올-알킬렌 글리콜 조성물을 정제함에 있어서 약산성 양이온 교환 수지 및 강염기성 음이온 교환 수지를 순차적으로 사용하여 정제를 수행함으로써 무수당 알코올-알킬렌 글리콜 조성물의 저장 안정성을 획기적으로 향상시켜, 우수한 품질의 무수당 알코올-알킬렌 글리콜 조성물을 제공할 수 있는 방법에 관한 것이다.