| Patents for C04B 11 - Calcium sulfate cements (2,042) |
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| 02/06/1980 | EP0007610A1 Process for making use of gypsum generated in flue-gas desulfurization units |
| 02/05/1980 | CA1070926A1 Manufacture of calcium sulphate alphahemihydrate |
| 01/22/1980 | CA1070089A1 Heat exchanger for fluid bed reactor |
| 01/15/1980 | US4183908 Crystalline calcium sulfate dihydrate and process for making same |
| 01/01/1980 | CA1068877A Flash calcination to produce soluble anhydrous calcium sulfate |
| 11/27/1979 | US4176157 Combustion gases to provide heat |
| 11/06/1979 | US4173610 Process for the manufacture of lump calcium sulfate |
| 09/11/1979 | CA1062006A1 System for handling high sulfur materials |
| 08/07/1979 | CA1059736A1 Method of producing fibre-containing building members |
| 07/17/1979 | US4161390 Calcining kettle having multi-pass heating system |
| 07/03/1979 | CA1057493A1 Continuous calcining of finely ground gypsum |
| 06/05/1979 | CA1055678A1 Method of preparing plaster |
| 05/08/1979 | US4153373 Apparatus and process for preparing calcined gypsum |
| 04/24/1979 | US4151000 From phosphogypsum by-product of wet phosphoric acid process |
| 01/02/1979 | CA1045340A1 Process for the manufacture of stabilised, hardenable calcium sulphate by reacting crude phosphate with sulphuric acid |
| 12/19/1978 | CA1044706A1 Structural materials based on lime-fly ash-sulfite compositions |
| 12/12/1978 | CA1044014A1 Calcining calcium sulphate dihydrate |
| 10/17/1978 | US4120737 Manufacture of calcium sulphate alpha hemihydrate |
| 10/17/1978 | US4120645 System for handling high sulfur materials |
| 10/03/1978 | US4118243 Process for disposal of arsenic salts |
| 10/03/1978 | US4118196 Apparatus for calcining wet powdery gypsum |
| 09/26/1978 | US4117070 Blending with a controlled amount of water |
| 09/12/1978 | US4113836 Continuous gypsum calcination process and kettle therefor |
| 09/05/1978 | US4112035 Production of calcinable material |
| 07/18/1978 | US4101630 Continuous calcining of gypsum |
| 05/23/1978 | US4091080 Method for the production of alpha type calcium sulfate hemihydrate |
| 04/25/1978 | US4086099 Method of preparing plaster |
| 03/21/1978 | US4080422 Method for producing insoluble calcium sulfate anhydrite |
| 12/27/1977 | US4065320 Drying cement pellets |
| 10/04/1977 | US4052149 Continuous calciner |
| 08/02/1977 | US4039616 Process for the manufacture of stabilized, hardenable calcium sulphate by reacting crude phosphate with sulphuric acid |
| 07/05/1977 | US4034086 Pyrrolidone-5,5-diphosphonic acids |
| 04/05/1977 | US4016240 Production of synthetic anhydrite |
| 12/21/1976 | US3998596 Calcining and hydrating chambers |
| 10/19/1976 | US3986820 Method and apparatus for burning multiphase gypsum |
| 10/05/1976 | US3983927 Heat exchanger for fluidized bed reactor |
| 09/28/1976 | US3982901 Heat transfer element and tuyere for fluidized bed reactor |
| 08/31/1976 | US3977890 Method for the preparation of fibrous calcium sulfate hemihydrate |
| 05/11/1976 | US3956456 Spiral air flow |
| 05/04/1976 | US3954492 Calcium sulphate anhydrite mortar |
| 04/20/1976 | US3951675 Method for the treatment of phosphogypsum |
| 03/23/1976 | US3945841 Phosphogypsum |