Method for preparing rare earth-based composite material
A composite material and rare earth-based technology, which is applied in the field of preparation of rare-earth-based composite materials to achieve the effects of reducing production costs, fine particles, and reducing the amount of precious metals
Active Publication Date: 2011-01-26
宁波科森净化器制造有限公司
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Problems solved by technology
However, in the field of rare earth-based composite material production, there are still technical problems of how to increase its specific surface area while reducing its particle size, thereby improving its performance
Method used
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[0026] The preparation method of a rare earth-based composite material of the present invention comprises a synthesis step, a water washing step, a centrifugation step, a beating step, a roasting step and a crushing step which are carried out in sequence.
[0027] Synthetic steps: in weight percentage, stirring the materials of 57%-63% of cerium nitrate, 27%-33% of zirconium carbonate, 3%-6% of lanthanum nitrate and 4%-6% of yttrium nitrate with an appropriate amount of solvent until dissolved, and then Pour into the synthesis kettle and react with ammonia water for 30min to 50min;
[0028] Washing step: washing the synthetic product with water above 80°C and settling, repeating at least once, and then performing the centrifugation step;
[0029] Centrifugation step: process the material through a centrifuge, and perform a beating step on the centrifuged material;
[0030] Beating step: move the material obtained after the centrifugation step into the barrel of the beater, ad...
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Abstract
The invention discloses a method for preparing a rare earth-based composite material, which sequentially comprises the following steps of: synthesizing, washing, centrifuging, pulping, calcining and crushing. The step of synthesizing comprises the following steps of: stirring materials comprising 57 to 63 weight percent of cerous nitrate, 27 to 33 weight percent of zirconium carbonate, 3 to 6 weight percent of lanthanum nitrate and 4 to 6 weight percent of yttrium nitrate with a proper amount of solvent for dissolution, pouring the materials into a synthesis reactor, and reacting with ammonia water for 30 to 50 minutes; the step of washing comprises the following steps of: washing and precipitating the synthesized product by using water with the temperature of over 80 DEG C; the step of centrifuging comprises the following steps of: treating the materials through a centrifugal machine and pulping the centrifuged materials; the step of pulping comprises the following steps of: transferring the centrifuged materials into a charging basket of a pulping machine, adding a surfactant, starting the pulping machine, fully and uniformly stirring the materials and stopping stirring; and the step of calcining comprises the following steps of: calcining the pulped materials at the temperature of over 600 DEG C and crushing the materials to prepare a powdery product.
Description
technical field [0001] The invention relates to the field of manufacturing rare earth-based composite materials, in particular to a preparation method of rare earth-based composite materials. Background technique [0002] Invention patent name: preparation method of rare earth particle / montmorillonite nanocomposite material, patent number: 200610042687, which discloses dissolving a certain amount of polymer monomer in a dispersant dissolved in a surfactant, and then adding a certain amount of The rare earth salt solution was stirred, and ultrasonically dispersed at room temperature for 30 minutes to 60 minutes to form a reverse micellar emulsion; then in N 2 Add the reverse micellar emulsion dropwise to the organic montmorillonite aqueous dispersion under protection, adjust the temperature to 60°C to 80°C, stir and disperse the intercalation by magnetic force for 2 hours to 3 hours, and then add an appropriate amount of initiator to make the polymer monomer Initiate polymer...
Claims
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Login to View More IPC IPC(8): B01J23/10B01J35/10
Inventor 张保才王新昕钱旺木
Owner 宁波科森净化器制造有限公司