One Step Preparation of Sulfonated Solid Catalyst and Its Effect in Esterification Reaction

作     者：康世民 常杰 范娟 KANG Shimin;CHANG Jie;FAN Juan

作者机构：The Key Laboratory of Fuel Cell Technology of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2014年第22卷第4期

页      面：392-397页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by the State Key Development Program for Basic Research of China(2013CB228104,2010CB732205) Ph.D Programs Foundation of Ministry of Education of China(20120172110011) the National High Technology Research and Development Program of China(2012AA051801) 

主　　题：red liquor solids sulfonated solid catalyst carbonization esterification 

摘      要：A carbon-based sulfonated catalyst was prepared by direct sulfonation and carbonization （in moderate conditions：200 ＆#176;C, 12 h） of red liquor solids, a by-product of paper-making process. The prepared sulfonated cata-lyst （SC） had aromatic structure, composed of carbon enriched inner core, and oxygen-containing （SO3H, COOH, OH） groups enriched surface. The SO3H, COOH, OH groups amounted to 0.74 mmol·g^-1, 0.78 mmol·g^-1, 2.18 mmol·g^-1, respectively. The fresh SC showed much higher catalytic activity than that of the traditional solid acid catalysts （strong^-acid 732 cation exchange resin, hydrogen type zeolite socony mobile-five （HZSM-5）, sulfated zir-conia） in esterification of oleic acid. SC was deactivated during the reactions, through the mechanisms of leaching of sulfonated species and formation of sulfonate esters. Two regeneration methods were developed, and the catalytic activity can be mostly regenerated by regeneration Method 1 and be fully regenerated by regeneration Method 2, respectively.