CA1212129A
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1986-09-30
Method of making a building material
CA1037227A
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1978-08-29
Process for the purification of flue gas and other waste gases
DE2906230C2
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1990-03-01
DE3113714C2
(en )
1985-09-19
Process for the recycling of waste products from coal-fired power stations as roadside dam material and backfill material and material produced according to the process
CA1226306A
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1987-09-01
Building material and method of making same
DE3117436C2
(en )
1987-10-22
DE3124003C2
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1985-07-25
Process for recycling the waste products from coal-fired power stations as roadside dam material and backfill material
DE3612931A1
(en )
1987-10-22
Mining mortar from waste dirt of coal extraction
AT394998B
(en )
1992-08-10
GROUND FILLING MEASURES
DE2225817A1
(en )
1973-12-06
Beta-calcium sulphate semi-hydrate prodn - by calcining calcium sulphate dihydrate and passing the gases over anhydrite
DE3249786C2
(en )
1990-02-08
Use of the residual solids from dry flue gas desulphurisation as building material for producing shaped objects
DE3730248A1
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1989-03-30
Mining gypsum
DD8208A
(en )