
基本信息:
- 专利标题: 一种由煤矸石制备低杂质4A沸石的方法
- 申请号:CN201510634708.7 申请日:2015-09-30
- 公开(公告)号:CN105271296B 公开(公告)日:2017-07-25
- 发明人: 赵永红 , 任英杰 , 张旭东 , 张广良 , 李萍
- 申请人: 中国日用化学工业研究院
- 申请人地址: 山西省太原市迎泽区文源巷34号
- 专利权人: 中国日用化学工业研究院
- 当前专利权人: 中国日用化学工业研究院
- 当前专利权人地址: 山西省太原市迎泽区文源巷34号
- 代理机构: 太原市科瑞达专利代理有限公司
- 代理人: 刘宝贤
- 主分类号: C01B39/14
- IPC分类号: C01B39/14
摘要:
一种由煤矸石制备低杂质4A沸石的方法将煤矸石粉碎过100目筛,得到粒径均匀的煤矸石粉末;酸溶液、煤矸石和络合剂投入反应器中反应;过滤、洗涤至pH为中性,烘干,得到含铁杂质少的煤矸石;将煤矸石与碱混匀,煅烧得到活化煤矸石;将活化煤矸石和水混合后添加络合剂,老化,晶化得到4A沸石。本发明具有含铁杂质少、白度高的优点。
摘要(英):
A method for preparing low-impurity 4A zeolite from gangue comprises the following steps: crushing gangue, and sieving by a 100 mesh sieve to obtain gangue powder with uniform particle size; adding an acid solution, gangue and a complexing agent into a reactor, and reacting; filtering, washing until the pH value is 7, and drying to obtain gangue with few iron-containing impurities; uniformly mixing gangue with an alkali, and calcining to obtain activated gangue; and mixing the activated gangue with water, adding the complexing agent, ageing, and crystallizing to obtain the 4A zeolite. The method has the advantages of few iron impurities and high whiteness.
公开/授权文献:
- CN105271296A 一种由煤矸石制备低杂质4A沸石的方法 公开/授权日:2016-01-27