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Method for preparing scandium-zirconium powder through spray pyrolysis and scandium-zirconium powder prepared through method
The invention provides a method for preparing scandium-zirconium powder through spray pyrolysis and the scandium-zirconium powder prepared through the method. The method comprises the following steps:mixing a scandium-containing solution and a zirconium-containing solution to obtain a scandium-zirconium mixed solution; and carrying out spray pyrolysis on the scandium-zirconium mixed solution to obtain scandium-zirconium powder. The scandium-zirconium powder is prepared by adopting a spray pyrolysis method. After the scandium-zirconium mixed solution is atomized into fine liquid drops, the fine liquid drops are brought into a high-temperature reaction furnace through carrier gas flowing. After the liquid drops enter the reaction furnace, the steps of solvent evaporation, solute precipitation, drying, metal salt thermal decomposition, sintering forming and the like are sequentially carried out within a short time, and finally powder particles are formed. The whole process is rapidly completed, the collision probability of the particles in the hearth is very small, and the collision time is short, so that the agglomeration phenomenon can be effectively reduced, and the obtained scandium-zirconium powder particles are fine, uniform in composition and good in dispersity. Meanwhile, the method has the advantages of controllable product particle composition, continuous production, simple operation and low raw material cost.
本发明提供了一种喷雾热解制备钪锆粉体的方法及该方法制备的钪锆粉体。该方法包括以下步骤：将含钪溶液和含锆溶液混合，得到钪锆混合溶液；将钪锆混合溶液进行喷雾热解，得到钪锆粉体。本发明采用喷雾热解法制备了钪锆粉体，将钪锆混合溶液雾化为细小液滴后，通过载气流动带入到高温反应炉中，液滴进入反应炉后，在较短的时间内依次经过了溶剂蒸发、溶质沉淀、干燥、金属盐热分解及烧结成型等步骤，最后形成了粉末颗粒。上述整个过程迅速完成，粒子在炉膛中碰撞的几率很小且碰撞时间短，因此可有效减少团聚现象，所得钪锆粉体粒子微细、组成均匀，具有良好的分散性。同时，该法产物粒子组成可控，可连续生产，操作简单，原料成本也较低。
Method for preparing scandium-zirconium powder through spray pyrolysis and scandium-zirconium powder prepared through method
The invention provides a method for preparing scandium-zirconium powder through spray pyrolysis and the scandium-zirconium powder prepared through the method. The method comprises the following steps:mixing a scandium-containing solution and a zirconium-containing solution to obtain a scandium-zirconium mixed solution; and carrying out spray pyrolysis on the scandium-zirconium mixed solution to obtain scandium-zirconium powder. The scandium-zirconium powder is prepared by adopting a spray pyrolysis method. After the scandium-zirconium mixed solution is atomized into fine liquid drops, the fine liquid drops are brought into a high-temperature reaction furnace through carrier gas flowing. After the liquid drops enter the reaction furnace, the steps of solvent evaporation, solute precipitation, drying, metal salt thermal decomposition, sintering forming and the like are sequentially carried out within a short time, and finally powder particles are formed. The whole process is rapidly completed, the collision probability of the particles in the hearth is very small, and the collision time is short, so that the agglomeration phenomenon can be effectively reduced, and the obtained scandium-zirconium powder particles are fine, uniform in composition and good in dispersity. Meanwhile, the method has the advantages of controllable product particle composition, continuous production, simple operation and low raw material cost.
本发明提供了一种喷雾热解制备钪锆粉体的方法及该方法制备的钪锆粉体。该方法包括以下步骤：将含钪溶液和含锆溶液混合，得到钪锆混合溶液；将钪锆混合溶液进行喷雾热解，得到钪锆粉体。本发明采用喷雾热解法制备了钪锆粉体，将钪锆混合溶液雾化为细小液滴后，通过载气流动带入到高温反应炉中，液滴进入反应炉后，在较短的时间内依次经过了溶剂蒸发、溶质沉淀、干燥、金属盐热分解及烧结成型等步骤，最后形成了粉末颗粒。上述整个过程迅速完成，粒子在炉膛中碰撞的几率很小且碰撞时间短，因此可有效减少团聚现象，所得钪锆粉体粒子微细、组成均匀，具有良好的分散性。同时，该法产物粒子组成可控，可连续生产，操作简单，原料成本也较低。
Method for preparing scandium-zirconium powder through spray pyrolysis and scandium-zirconium powder prepared through method
喷雾热解制备钪锆粉体的方法及该方法制备的钪锆粉体
LI XIAOYAN (author) / WANG WEIWEI (author) / YAO XIN (author) / HAN GUOQIANG (author) / FU YUNFENG (author) / LIU GUO (author)
2020-05-29
Patent
Electronic Resource
Chinese
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