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Method for preparing double-rare-earth tantalate hollow sphere powder by centrifugal spray granulation method
The invention discloses a method for preparing double-rare-earth tantalate (Y1-xGdx) TaO4 hollow sphere powder by a centrifugal spray granulation method, the method comprises the following steps: step 1, weighing yttrium oxide Y2O3, gadolinium oxide Gd2O3 and tantalum pentoxide Ta2O5 according to a molar ratio of (1-x): x: 1, putting the yttrium oxide Y2O3, the gadolinium oxide Gd2O3 and the tantalum pentoxide into a ball milling tank together with absolute ethyl alcohol, uniformly mixing, drying, sieving, and calcining screen underflow; step 2, crushing the blocky calcined powder to obtain (Y1-xGdx) TaO4 powder, adding the powder and primary deionized water into a grinding machine for grinding, drying and sieving to obtain preform powder, mixing the preform powder with secondary deionized water to obtain preform slurry, adding a binder colloid and a defoaming agent into the preform slurry, performing spray granulation, and drying to obtain the double-rare-earth tantalate (Y1-xGdx) TaO4 hollow sphere powder. The hollow sphere powder prepared by the method is uniform in particle size, good in fluidity and high in purity.
本发明公开了一种离心式喷雾造粒法制备双稀土钽酸盐(Y1‑xGdx)TaO4空心球粉体的方法，包括以下步骤：步骤一、按照摩尔比为1～x：x：1称取氧化钇Y2O3、氧化钆Gd2O3和五氧化二钽Ta2O5，并和无水乙醇放置于球磨罐中，混合均匀后，干燥、过筛，取筛下物煅烧；步骤二、破碎块状煅烧粉体，得到(Y1‑xGdx)TaO4粉末，将粉末和一次去离子水加入研磨机中研磨烘干、过筛，得到预制体粉末，与二次去离子水混合，得到预制体浆料，在预制体浆料中加入粘结剂胶体和消泡剂，喷雾造粒，干燥后得到双稀土钽酸盐(Y1‑xGdx)TaO4空心球粉体。该方法制备得到的空心球粉体粒径均匀、流动性好、纯度高。
Method for preparing double-rare-earth tantalate hollow sphere powder by centrifugal spray granulation method
The invention discloses a method for preparing double-rare-earth tantalate (Y1-xGdx) TaO4 hollow sphere powder by a centrifugal spray granulation method, the method comprises the following steps: step 1, weighing yttrium oxide Y2O3, gadolinium oxide Gd2O3 and tantalum pentoxide Ta2O5 according to a molar ratio of (1-x): x: 1, putting the yttrium oxide Y2O3, the gadolinium oxide Gd2O3 and the tantalum pentoxide into a ball milling tank together with absolute ethyl alcohol, uniformly mixing, drying, sieving, and calcining screen underflow; step 2, crushing the blocky calcined powder to obtain (Y1-xGdx) TaO4 powder, adding the powder and primary deionized water into a grinding machine for grinding, drying and sieving to obtain preform powder, mixing the preform powder with secondary deionized water to obtain preform slurry, adding a binder colloid and a defoaming agent into the preform slurry, performing spray granulation, and drying to obtain the double-rare-earth tantalate (Y1-xGdx) TaO4 hollow sphere powder. The hollow sphere powder prepared by the method is uniform in particle size, good in fluidity and high in purity.
本发明公开了一种离心式喷雾造粒法制备双稀土钽酸盐(Y1‑xGdx)TaO4空心球粉体的方法，包括以下步骤：步骤一、按照摩尔比为1～x：x：1称取氧化钇Y2O3、氧化钆Gd2O3和五氧化二钽Ta2O5，并和无水乙醇放置于球磨罐中，混合均匀后，干燥、过筛，取筛下物煅烧；步骤二、破碎块状煅烧粉体，得到(Y1‑xGdx)TaO4粉末，将粉末和一次去离子水加入研磨机中研磨烘干、过筛，得到预制体粉末，与二次去离子水混合，得到预制体浆料，在预制体浆料中加入粘结剂胶体和消泡剂，喷雾造粒，干燥后得到双稀土钽酸盐(Y1‑xGdx)TaO4空心球粉体。该方法制备得到的空心球粉体粒径均匀、流动性好、纯度高。
Method for preparing double-rare-earth tantalate hollow sphere powder by centrifugal spray granulation method
一种离心式喷雾造粒法制备双稀土钽酸盐空心球粉体的方法
FENG JING (author) / WANG JUN (author) / QU CHENKAI (author) / LI ZHENJUN (author) / WANG FENG (author) / WANG LONG (author)
2021-11-05
Patent
Electronic Resource
Chinese
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