文献类型：专利

英文题名：Preparation of high carbon yield pitch based sphere activated carbon by reacting infusible pitch spheres and zinc chloride, heating to carbonize and activate, cooling, acid washing, cleaning using deionized water, and drying

作者：LIANG X;LIU X;LIU C;WANG Q;CHEN Q;ZHAN L;ZHANG R;QIAO W;LING L

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN101269811-A

申请日：2008-05-08

公开日：2008-09-24

语种：英文

收录：DERWENT

摘要：NOVELTY - A high carbon yield pitch based sphere activated carbon is prepared by mixing infusible pitch spheres as raw material and 1-80% zinc chloride as chemical activating agent at a ratio of 1:0.25-15; heating obtained mixture at 300-800 degrees C for 0-20 hours to carbonize and activate; cooling to lower than 50 degrees C; acid washing using hydrochloric acid, sulfuric acid or nitric acid (0.1-5 mol/L); cleaning using deionized water to adjust pH value to 6-7; and drying. USE - Method of preparing high carbon yield pitch based sphere activated carbon (claimed). ADVANTAGE - The method prepares sphere having specific surface area of more than 100 m2/g, and a carbon yield of more than 80%.