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Microporous ceramic for tungsten refining as well as preparation method and application thereof
The invention discloses a microporous ceramic for tungsten refining as well as a preparation method and application thereof. The method comprises the following steps: putting the components of a microporous ceramic formula into a ball milling tank, sealing and performing ball milling to obtain ball-milled powder; adding a mixed solution, and uniformly mixing and stirring into a mud form; performing extrusion moulding in a gypsum mould, and taking out for later use; drying naturally and then drying in an oven, wherein the oven temperature is set at 50-60 DEG C at first, and the temperature is increased by 5-10 DEG C every half hour and gradually rises to a constant temperature of 70-80 DEG C to obtain dried products; tightly wrapping the dried products with kraft paper one by one; and fixing the products on a silicon carbide board, and sintering in a high-temperature electric furnace according to a set thermal regulation process to obtain the microporous ceramic for tungsten refining. According to the invention, the microporous ceramic material is applied to wet-process tungsten refining, a reaction kettle as well as the steps of filtration and separation are saved, sodium tungstate is automatically filtered and separated by an efficient microwave heating technology, and the invention has the advantages of high efficiency, low cost, energy conservation and environmental protection.
Microporous ceramic for tungsten refining as well as preparation method and application thereof
The invention discloses a microporous ceramic for tungsten refining as well as a preparation method and application thereof. The method comprises the following steps: putting the components of a microporous ceramic formula into a ball milling tank, sealing and performing ball milling to obtain ball-milled powder; adding a mixed solution, and uniformly mixing and stirring into a mud form; performing extrusion moulding in a gypsum mould, and taking out for later use; drying naturally and then drying in an oven, wherein the oven temperature is set at 50-60 DEG C at first, and the temperature is increased by 5-10 DEG C every half hour and gradually rises to a constant temperature of 70-80 DEG C to obtain dried products; tightly wrapping the dried products with kraft paper one by one; and fixing the products on a silicon carbide board, and sintering in a high-temperature electric furnace according to a set thermal regulation process to obtain the microporous ceramic for tungsten refining. According to the invention, the microporous ceramic material is applied to wet-process tungsten refining, a reaction kettle as well as the steps of filtration and separation are saved, sodium tungstate is automatically filtered and separated by an efficient microwave heating technology, and the invention has the advantages of high efficiency, low cost, energy conservation and environmental protection.
Microporous ceramic for tungsten refining as well as preparation method and application thereof
CHEN SHAOJIN (Autor:in) / CHEN QIFENG (Autor:in)
16.09.2015
Patent
Elektronische Ressource
Englisch
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