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Patent classifications
C
CHEMISTRY; METALLURGY
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C04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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C04B
LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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11/00
Calcium sulfate cements
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C04B11/02
Methods and apparatus for; dehydrating gypsum
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C04B11/028
Devices therefor; characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
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C04B11/036
for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln; , i.e. to obtain beta-hemihydrate
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