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Application filed by برودوي شيميك اوجين كولمانfiledCriticalبرودوي شيميك اوجين كولمان
Priority to JO1977897ApriorityCriticalpatent/JO897B1/en
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Publication of JO897B1publicationCriticalpatent/JO897B1/en
Solid-Sorbent Or Filter-Aiding Compositions
(AREA)
Abstract
An anhydrite composed of anhydrous CaSO4 obtained from phosphogypsum constituting the residue of the production of phosphoric acid by the wet method, characterized by a content of more than 93% of CaSO4 of the so- called insoluble variety, a pore volume less than .29 cc/g fro pores of radii smaller than 6.6 microns, a granulomertry comprising a proportion of particles of a diameter smellers than 10u higher than or equal to 15% by weight, and a proportion of particles of a diameter larger than 20u higher than or equal to 20% with a median diameter between 5 and 30u, and a process for the preparation of this anhydrite Binders and building materials prepared from this an hydrite.
JO1977897A1977-11-071977-11-07Anhydrite for binding agents
JO897B1
(en)