IPC Subgroup
C04B 11/26 starting from phosphogypsum or from waste, e.g. purification products of smoke
Introduced: January 1985
Last revised: January 2006
Full Title
Calcium sulfate cements > starting from phosphogypsum or from waste, e.g. purification products of smoke
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- Subclass:
- LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE