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Preparation of granular gypsum

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专利汇可以提供Preparation of granular gypsum专利检索,专利查询,专利分析的服务。并且PURPOSE: To prepare hardly crushable and hardly pulverizable granular gypsum, by granulating the mixture of gypsum powder, dried powder of blackstrap molasses, fermentation waste liquid, etc., a magnesia-containing basic material, and a mineral acid.
CONSTITUTION: Gypsum powder composed mainly of CaSO
4 .2H
2 O and obtained as a by-product of various industrial processes, is compounded with proper amounts of (A) blackstrap molasses, fermentation waste liquid, wood digestion waste liquid, or dried powder obtained therefrom, (B) a magnesia-containing basic material such as carbide furnace dust, and (C) a mineral acid such as sulfuric acid. Granulation and drying of the mixture affords the objective granular gypsum having high crushing strength and pulverization resistance and excellent handleability. It can be used as a soil improver, a component of bulk blend fertilizer, a cement additive, etc.
COPYRIGHT: (C)1981,JPO&Japio,下面是Preparation of granular gypsum专利的具体信息内容。

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