Low-temperature ceramic curing agent of red mud from Bayer process

2009 
The invention relates to a low-temperature ceramic curing agent of red mud from a Bayer process. The low-temperature ceramic curing agent is prepared by the following raw materials by weight parts: 100 aluminosilicate residues, 20-150 industrial by-product gypsum, 50-200 excited materials, 0-3.0 water-reducing agent, 0-5.0 flocculating agent and 0-5.0 retarder. The production method thereof comprises the following steps: (1) processing main raw materials; (2) preparing additives; and (3) preparing a curing agent. The invention has the beneficial effects that (1) all components of the curing agent can irreversibly react with the red mud; compared with the prior gelled material, the invention does not use cement, base excited materials and expensive high molecular polymers, thereby achieving low cost; (2) the invention uses the industrial residues as the raw materials to cure the red mud so as to achieve the aim of treating a waste with another waste; no secondary waste is exhausted in a production process and an application process so as to benefit environmental protection; and (3) the invention can thoroughly solve the safety problem of a red mud library after curing the red mud.
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