基本信息:
- 专利标题： 由至少三种金属盐制备溶胶-凝胶的方法以及所述方法用于制备陶瓷膜的用途
- 专利标题（英）：Process for preparing a sol-gel from at least three metal salts and use of the process for preparing a ceramic membrane
- 申请号：CN201280061184.1 申请日：2012-09-26
- 公开(公告)号：CN104136393A 公开(公告)日：2014-11-05
- 发明人： N·里歇 , T·沙尔捷 , F·罗西尼奥 , A·维韦 , P-M·热弗鲁瓦
- 申请人： 乔治洛德方法研究和开发液化空气有限公司 , 科学研究国家中心 , 利摩日大学
- 申请人地址： 法国巴黎
- 专利权人： 乔治洛德方法研究和开发液化空气有限公司,科学研究国家中心,利摩日大学
- 当前专利权人： 乔治洛德方法研究和开发液化空气有限公司,科学研究国家中心,利摩日大学
- 当前专利权人地址： 法国巴黎
- 代理机构： 北京市中咨律师事务所
- 代理人： 肖威; 刘金辉
- 优先权： 1161690 2011.12.15 FR
- 国际申请： PCT/EP2012/068923 2012.09.26
- 国际公布： WO2013/087241 FR 2013.06.20
- 进入国家日期： 2014-06-12
- 主分类号： C04B35/01
- IPC分类号： C04B35/01 ; C04B35/26 ; C04B35/465 ; C01G15/00 ; C01G23/00 ; C01G49/00 ; C04B41/00 ; H01M4/86 ; H01M4/88 ; H01M4/90 ; C01G51/04 ; C04B38/06
Process for preparing a sol-gel from at least four salts of metals M1, M2, M3 and M4 suitable and intended for the preparation of a perovskite type material corresponding to the general formula (I): A(1-X) A'x B(1-y-U) B'y B"u Omicron3-delta, (I), said process comprising the following steps: - a step a) of preparing an aqueous solution of water-soluble salts of said elements A, A' optionally A", B and B', in the stoichiometric proportions necessary for obtaining the material as defined above; - a step b) of preparing an aqueous-alcoholic solution of at least one non-ionic surfactant in an alcohol chosen from methanol, ethanol, propanol, propanol, isopropanol or butanol, mixed with an aqueous solution of ammonia in a sufficient proportion to ensure the complete solubilisation of said non-ionic surfactant in said aqueous-alcoholic solution, the concentration of said non-ionic surfactant in said aqueous-alcoholic solution being less than the critical micelle concentration; - a step c) of mixing said aqueous solution prepared in step a) with said alcoholic dispersion prepared in step b) in order to form a sol; - a step d) of drying said sol obtained in step c), by evaporation of the solvent, in order to obtain a sol-gel. Use of the process for preparing a ceramic membrane.