Preparation method of attapulgite porous membrane
作者： Sun Hanxue , Zhu Zhaoqi , Li An , Yang Baoping , Liang Weidong
DOI:
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摘要: The invention discloses a preparation method of an attapulgite porous membrane. comprises the following steps: (1) with purified as raw material and hydrochloride pore-forming agent, based on total mass fully grinding agent in mortar, keeping at pressure 24-30MPa for 5-10 minutes by using tablet press, carrying out dry-pressing to prepare sheet-shaped membrane, wherein addition amount is 30-60 percent mass; (2) placing membrane tube furnace, raising temperature 400-600 DEG C under protection inert gas, sintering 1-2 hours ensure that surface subjected carburizing reaction, cooling along furnace room then taking membrane; (3) soaking which cooled distilled water, washing water 3-5 times until removed; (4) drying after removed obtain
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