Record Display for the EPA National Library Catalog
RECORD NUMBER: 913 OF 938Main Title | Use of Anhydrite Formed in the Hydrogen Fluoride Production Process. Compendium on Low- and Non-Waste Technology. | |||||||||||
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CORP Author | Economic Commission for Europe (UN), Geneva (Switzerland).;Environmental Protection Agency, Washington, DC. | |||||||||||
Publisher | 6 May 85 | |||||||||||
Year Published | 1985 | |||||||||||
Stock Number | PB95-233649 | |||||||||||
Additional Subjects | Hydrogen fluoride ; Solid wastes ; Waste recovery ; Anhydrites ; Calcium sulphate | |||||||||||
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Collation | 9p | |||||||||||
Abstract | Synthetic anhydrite (calcium sulphate), produced from the production of hydrogen fluoride acid, is prepared to form a standardized anhydrite binder for use in floor construction in buildings. Part of the anhydrite produced is applied in the cement industry as a setting regulator. Conventional method is to dispose of the anhydrite. The low waste technology process involves an additional step of milling to reduce the grain size, requiring additional classifiers, mills, and bagging apparatus. |