Fibre-reinforced gypsum article prodn. e.g. for fibre board - by moulding autoclave-treated slurry of di:hydrate and fibres
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Inorganic material and process for the production thereof
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Process for preparing calcium sulphate hemihydrate
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Process and device for mechanically removing the surface of lumped goods.
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Process for the production of components from combustion residues
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Absorbent prodn. for detoxification of waste gas - by hydrating alkaline earth oxide in presence of alkali or alkaline earth halide acting as accelerator
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Perforated brick prodn. from lime and amorphous pumice - giving adequate thermal insulation for use in external walls (NL 10.8.79)
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Slaking lime with excess water - under shearing, using lime and-or water esp. contaminated with sulphate(s)
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Hydrothermally hardened lightweight building plates or blocks - produced from preheated mixt. of highly active quick lime, silica and water
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Photometrically operated lump mineral sorter - has light analysing sensor head activating sorting mechanism
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Process for the production of hydrated lime
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Vertical limestone burning kiln - with cupola exterior central combustion chamber
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METHOD OF OPERATING SHAFT FURNACES FOR BURNING ROCKS CONTAINING CARBONATE
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Treatment of materials in shaft furnaces - with periodically suppressed heating
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Method of and device for photometrically sorting lumpy minerals
