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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
27-04-2011 дата публикации

Method for producing caustic dolomite used as raw material of magnesia cement from dolomite ore

Номер: CN0102030488A
Принадлежит:

The invention relates to a method for producing caustic dolomite used as a raw material of magnesia cement from dolomite ore, belonging to the field of inorganic chemical building materials. The method is characterized by comprising the steps of dolomite ore crushing -> carbon dioxide positive pressure roasting -> cooling -> grinding -> packaging. The caustic dolomite produced by the production method has high activity and completely meets the requirements for being used as a raw material to prepare magnesia cement, and the prepared magnesia cement has great strength; measurements on the magnesia cement prepared from the caustic dolomite together with magnesium chloride show that MgO is not less than 18%, CaO is not more than 2.0%, initial setting time is not less than 40 min, final setting time is not more than 7 h, stability is qualified, and the compression strength of pure slurry is not less than 40 MPa. In the invention, dolomite resources are fully utilized as the raw material of ...

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11-05-2011 дата публикации

Dolomite magnesia cement pantile and manufacturing method thereof

Номер: CN0102050615A
Принадлежит:

The invention relates to a dolomite magnesia cement pantile and a manufacturing method thereof, which belongs to the field of chemical and building materials. The dolomite magnesia cement pantile comprises caustic dolomite powder, magnesium chloride, a light filler, an inert filler, water and a thermal insulating material, the mass ratio of which is 1.00:0.12 to 0.40:0.10 to 0.60:0.05 to 0.30:0.44 to 1.20:0.05 to 0.30, and a supporting material is properly added. The manufacturing method comprises the following steps of slurry mixing, shaping, curing and maintaining. The produced dolomite magnesia cement pantile for buildings has the advantages of fire protection, thermal insulation, high strength, good water resistance, anticorrosion, shock prevention, easiness in construction, environmental protection, energy conservation, simple production process, low energy consumption and the like, is an updated product for replacing various color steel light partition wall boards, silicate cement ...

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