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Method for preparing high-entropy rare earth tantalate hollow sphere powder by centrifugal spray granulation method
The invention discloses a method for preparing high-entropy rare earth tantalate hollow sphere powder through a centrifugal spray granulation method, wherein the preparation method comprises the following steps: step 1, weighing raw materials YAR2O3 oxide and tantalum pentoxide Ta2O5 according to a ratio, carrying out ball milling and uniform mixing, and then carrying out drying, sieving and calcining treatment to obtain blocky tantalate; step 2, crushing blocky tantalate, adding powder and primary deionized water into a grinding machine for grinding to obtain slurry in a required particle size range, then putting the slurry into a filter press for filtering, drying and sieving to obtain dried powder, adding secondary deionized water and a binder into the dried powder, adding a defoaming agent to obtain a spray granulation preform, drying the mixture, and sieving the mixture to obtain the rare earth tantalate hollow sphere powder. The hollow spherical powder prepared by the method is uniform in particle, good in fluidity and high in product purity.
本发明公开了一种离心式喷雾造粒法制备高熵稀土钽酸盐空心球粉体的方法，该制备方法包括以下步骤：步骤一、按比例称取原料YAR2O3氧化物和五氧化二钽Ta2O5，球磨混合均匀后，干燥、过筛和煅烧处理，得块状钽酸盐；步骤二、将块状钽酸盐破碎，将粉体和一次去离子水加入研磨机中研磨，得到所需粒径范围的浆料，将其置于压滤机中过滤，烘干过筛得烘干粉末，往烘干粉末中加入二次去离子水和粘结剂，加入消泡剂得到喷雾造粒预制体，干燥后进筛，得到稀土钽酸盐空心球粉体。该方法制备的空心球形粉颗粒均匀、流动性好、产品纯度高。
Method for preparing high-entropy rare earth tantalate hollow sphere powder by centrifugal spray granulation method
The invention discloses a method for preparing high-entropy rare earth tantalate hollow sphere powder through a centrifugal spray granulation method, wherein the preparation method comprises the following steps: step 1, weighing raw materials YAR2O3 oxide and tantalum pentoxide Ta2O5 according to a ratio, carrying out ball milling and uniform mixing, and then carrying out drying, sieving and calcining treatment to obtain blocky tantalate; step 2, crushing blocky tantalate, adding powder and primary deionized water into a grinding machine for grinding to obtain slurry in a required particle size range, then putting the slurry into a filter press for filtering, drying and sieving to obtain dried powder, adding secondary deionized water and a binder into the dried powder, adding a defoaming agent to obtain a spray granulation preform, drying the mixture, and sieving the mixture to obtain the rare earth tantalate hollow sphere powder. The hollow spherical powder prepared by the method is uniform in particle, good in fluidity and high in product purity.
本发明公开了一种离心式喷雾造粒法制备高熵稀土钽酸盐空心球粉体的方法，该制备方法包括以下步骤：步骤一、按比例称取原料YAR2O3氧化物和五氧化二钽Ta2O5，球磨混合均匀后，干燥、过筛和煅烧处理，得块状钽酸盐；步骤二、将块状钽酸盐破碎，将粉体和一次去离子水加入研磨机中研磨，得到所需粒径范围的浆料，将其置于压滤机中过滤，烘干过筛得烘干粉末，往烘干粉末中加入二次去离子水和粘结剂，加入消泡剂得到喷雾造粒预制体，干燥后进筛，得到稀土钽酸盐空心球粉体。该方法制备的空心球形粉颗粒均匀、流动性好、产品纯度高。
Method for preparing high-entropy rare earth tantalate hollow sphere powder by centrifugal spray granulation method
一种离心式喷雾造粒法制备高熵稀土钽酸盐空心球粉体的方法
FENG JING (author) / WANG JUN (author) / QU CHENKAI (author) / WANG LONG (author) / LI ZHENJUN (author) / WANG FENG (author)
2022-02-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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