PRODUCTION METHOD OF GYPSUM BINDING MATERIAL Russian patent published in 2009 - IPC C04B11/02 

FIELD: construction.

SUBSTANCE: invention pertains to production of gypsum binding material and may be employed in the industry of construction materials. As per the method of production of gypsum binding material from hydrogen fluoride uncooled acid waste products, including neutralisation of the above mentioned acid wastes during inter-grinding with lime carbonate - containing agentc, self - disintegrating ferrochromic slag is used as the latter, during grinding water is additionally introduced in the amount of 10.0-14.0 wt % of the stated waste, received binding material stands for not less than 5 hours in the annealing bin.

EFFECT: enhances strength of the gypsum binding agent and reduced power consumption of the process of production of gypsum binding agent.

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