首页>
外国专利>
Process for the preparation of mixtures of synthetic crystalline magadiite and oxygen releasing salts and use thereof
Process for the preparation of mixtures of synthetic crystalline magadiite and oxygen releasing salts and use thereof
展开▼
机译:合成结晶性辉铁矿和释氧盐混合物的制备方法及其用途
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention relates to a process for the preparation of mixtures of synthetic crystalline magadiite and oxygen-liberating salts, which is characterised in that 1 mol of sodium water glass having a molar ratio of SiO2:Na2O = 1:(0.25 to 0.5) is mixed with from 0.1 to 0.9 mol of a compound having a pH of less than 10.5 in molar aqueous concentration as neutralising agent and the mixture is heated for from 1 to 15 hours in the presence of magadiite seed crystals at temperatures of from 373 to 523 K, in particular from 423 to 463 K, in an autoclave and, after cooling, from 0.15 to 1.5 mol of hydrogen peroxide per 1 mol of sodium water glass used is added and from the reaction suspension the solid is isolated and the dissolved materials are isolated as dry substance.
展开▼
机译:本发明涉及一种制备合成结晶性辉铁矿和释放氧的盐的混合物的方法,其特征在于将摩尔比为SiO 2 ∶Na 2 O = 1∶(0.25至0.5)的1摩尔钠水玻璃混合。用0.1至0.9摩尔摩尔浓度的pH值小于10.5的化合物作为中和剂,并将混合物在存在辉铁矿晶种的情况下于373至523 K的温度下加热1至15小时,在高压釜中,特别是423-463 K,冷却后,每使用1摩尔钠水玻璃添加0.15-1.5摩尔过氧化氢,并从反应悬浮液中分离出固体,并将溶解的物质分离为干物质。
展开▼