摘要:
以提钒尾渣为主要原料, 通过添加结合剂、粘土、减水剂和造孔剂, 采用注浆成型工艺制备提钒尾渣多孔陶瓷, 该多孔陶瓷可用于化工过滤、窑炉保温和建筑装饰等行业, 可以大大提高提钒尾渣的利用率和附加值。通过条件试验较系统研究了煅烧温度、结合剂配入量、高温点保温时间、粘土配入量、造孔剂配入量对提钒尾渣多孔陶瓷性能影响。条件试验表明:结合剂选择铝酸盐水泥, 配入量选择6%左右;煅烧温度选择1 050℃左右;保温时间选择4~6 h;粘土的配入量选择10%左右, 造孔剂的配入量选择100 m L左右 (每150 g原料), 可制备符合要求的提钒尾渣多孔陶瓷。
关键词:
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提钒尾渣 /
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多孔陶瓷 /
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浇注法 /
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造孔剂
Abstract:
Vanadium slag can be utilized as the main raw material,binder,clay,water reducing agent and pore forming agent has been added for,preparing vanadium slag porous ceramics via injection molding process. The obtainedporous ceramic filter can be used in chemical industry,furnace insulation and building decoration industry. In this paper the effect of the calcination temperature,the binder content,the heat preservation time,the clay content,the pore forming agent content,and the effect of pore forming agent on the properties of porous ceramics were investigated. It is found out that combined selection of aluminate cement as binder with~6% addition,calcination temperature of 1 050 ℃,and holding period of 4~6 h,10% clay and 100 mL/150 g raw material of pore forming agent,the satisfied porous ceramic can be obtained.
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