POLYVINYLALCOHOL HYDROGEL COATING INCORPORATED MEMBRANE MODULE MANUFACTURING METHOD THEREOF AND PURIFICATION METHOD OF BY-PRODUCTS OF EPOXY RESIN MANUFACTURING PROCESS USING THE SAME

• Main Authors: YOO YOUNGMIN, PARK AHRUMI, NAM SEUNG EUN, PARK YOU IN, KIM DAEHUN, PARK HOSIK, CHO YOUNG HOON, KWON YONG SUNG, KIM IN CHUL
• Format: Patent
• Language: English; Korean
• Published: 21.07.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The present invention provides a method for manufacturing a separation membrane module, a separation membrane module, and a method for purifying by-products of an epoxy resin manufacturing process, wherein the method for manufacturing a separation membrane module includes the steps of: a) applying a hydrogel solution including polyvinyl alcohol (PVA) and a crosslinking agent on the surface of a porous ceramic support; b) removing a hydrogel solution not fixed to the surface of the support; and c) drying the hydrogel solution applied to the support. 본 발명은 a) 다공성 세라믹 지지체의 표면에 폴리비닐알코올(PVA) 및 가교제를 포함하는 하이드로젤 용액을 도포하는 단계; b) 상기 지지체 표면에 고정되지 않은 하이드로젤 용액을 제거하는 단계; 및 c) 상기 지지체에 도포된 하이드로젤 용액을 건조하는 단계를 포함하는 분리막 모듈의 제조방법, 분리막 모듈 및 에폭시 수지 제조공정 부산물의 정제방법을 제공한다.