Method for preparing foamed ceramic filter by using waste chrome corundum: Fid-Bau Portal

Method for preparing foamed ceramic filter by using waste chrome corundum

LIU YANGMING / GUO HAITAO / LI SHIGENG / ZHU JIANBIN / LONG LIANG

The invention provides a method for preparing a foamed ceramic filter from waste chrome corundum, and relates to the field of foamed ceramics. The method comprises the following steps: grinding the waste chrome corundum, and screening by a 200-mesh sieve to obtain screen underflow; mixing the first raw materials, sintering, and then cooling and crushing to obtain first powder; the first raw material is prepared from 95 to 97 percent of screen underflow, 1 to 2 percent of nano lanthanum oxide, 1 to 2 percent of nano cerium oxide, 0.5 to 1 percent of sodium dodecyl benzene sulfonate and 0.1 to 0.5 percent of K4Sb2O7; mixing the second raw materials, adding water and stirring to obtain slurry; the second raw material comprises 50-70% of first powder, 20-40% of aluminum oxide, 5-10% of zirconium oxide, 1-5% of an isothiazolinone derivative and 1-5% of ammonium carbonate; dipping the carrier in the slurry, extruding and drying to obtain a blank; sintering and cooling the blank to obtain the foamed ceramic filter. According to the method provided by the invention, the foamed ceramic filter can be prepared from the waste chrome corundum.

本申请提供一种利用废铬刚玉制备泡沫陶瓷过滤器的方法，涉及泡沫陶瓷领域。该方法包括：将废铬刚玉进行研磨，然后200目筛筛分得到筛下物；将第一原料混合，进行烧结，然后进行冷却和粉碎得到第一粉料；第一原料包括筛下物95‑97％、纳米氧化镧1‑2％、纳米氧化铈1‑2％、十二烷基苯磺酸钠0.5‑1％、K4Sb2O70.1‑0.5％；将第二原料混合，加水搅拌得到浆料；第二原料包括第一粉料50‑70％、氧化铝20‑40％、氧化锆5‑10％、异噻唑啉酮衍生物1‑5％、碳酸铵1‑5％；载体浸渍浆料，然后挤压、干燥得坯料；将坯料烧结、冷却得到泡沫陶瓷过滤器。本申请提供的方法，能够使用废铬刚玉制备泡沫陶瓷过滤器。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren