公开(公告)号：KR100834124B1

公开(公告)日：2008-06-03

申请号：KR1020070020264

申请日：2007-02-28

Applicant: 가톨릭관동대학교산학협력단

Inventor： 김현욱 ,  양재규 ,  이승목

IPC: C01G49/00 ,  C01D13/00

Abstract: A preparation method of potassium ferrate is provided to obtain potassium ferrate in high yield from chemically pure agents for economical advantage and to reduce the number of solvent cleaning process for higher productivity by employing toluene and ethyl ether for cleaner. A preparation method of potassium ferrate comprises steps of: capturing Cl2 gas which is transformed to OCl- by transmitting Cl2 gas generated from a reaction between potassium permanganate and hydrochloric acid in supersaturated NaOH solution; preparing a suspension comprising excess NaOH solubilized by shaking the NaOH solution; filtering the suspension with vacuum filter to prepare OCl- solution; preparing sodium ferrate solution by adding Fe(NO3)3.H2O while maintaining the temperature of the OCl- solution at 20deg.C; filtering the sodium ferrate solution, and adding the filtrated solution in a supersaturated KOH solution in order to form potassium ferrate particles; filtering the formed potassium ferrate particles; adding the potassium ferrate particles in 3M KOH solution in order to solubilize impurities contained in the potassium ferrate particles; filtering the KOH solution in order to obtain potassium ferrate particles; cleaning the potassium ferrate particles with toluene; cleaning the potassium ferrate particles with alkyl ether; putting the potassium ferrate particles in ethanol and shaking the mixture; and filtering the potassium ferrate particles, in the proviso that all the reagents are chemically pure agents having purity of at least 99.5%. The alkyl ether is selected from ethyl ether, propyl ether and butyl ether.

Abstract translation: 提供高铁酸钾的制备方法，以经济的方式从化学纯的试剂中高产率地获得高铁酸钾，并且通过使用甲苯和乙醚用于清洁剂，可以减少更高生产率的溶剂清洗过程的数量。 高铁酸钾的制备方法包括以下步骤：通过在过饱和NaOH溶液中转移由高锰酸钾和盐酸之间的反应产生的Cl 2气体来捕获转化为OCl-的Cl 2气体; 制备包含通过摇动NaOH溶液而溶解的过量NaOH的悬浮液; 用真空过滤器过滤悬浮液以制备OCl-溶液; 通过加入Fe（NO 3）3·H 2 O，同时将OCl-溶液的温度保持在20℃，制备高铁酸钠溶液; 过滤高铁酸钠溶液，并将过滤的溶液加入过饱和KOH溶液中以形成高铁酸钾颗粒; 过滤形成的高铁酸钾颗粒; 将高铁酸钾颗粒加入到3M KOH溶液中，以溶解含有高铁酸钾颗粒的杂质; 过滤KOH溶液以获得高铁酸钾颗粒; 用甲苯清洗高铁酸钾颗粒; 用烷基醚清洗高铁酸钾颗粒; 将高铁酸钾颗粒置于乙醇中并摇动混合物; 并过滤高铁酸钾颗粒，条件是所有试剂均为纯度至少为99.5％的化学纯试剂。 烷基醚选自乙醚，丙醚和丁醚。