28-04-2016 дата публикации
Номер: US20160115076A1
Принадлежит:
A composition comprising at least one calcium-magnesium compound fitting the formula aCaCO.bMgCO.xCaO.yMgO.zCa(OH).tMg(OH).uI, wherein I represents impurities a, b, z, t and u each being mass fractions ≧0 and ≦50%, x and y each being mass fractions ≧0 and ≦100%, with x+y≧50% by weight, based on the total weight of said at least one calcium-magnesium compound, which is in the form of particles, said composition having an calcium and magnesium accrued content in the form of oxides, greater than or equal to 20% by weight and being in the form of compacts, each compact being formed with said compacted and shaped particles of calcium-magnesium compounds, said compacts having a Shatter Test Index of less than 10% allowing very good resistance to falling and good resistance to ageing, manufacturing method and use thereof. 1. A composition comprising at least one calcium-magnesium compound having the formula{'br': None, 'i': a', '.b', '.x', 'y', 'z', '.t', '.u, 'sub': 3', '3', '2', '2, 'CaCOMgCOCaO.MgO.Ca(OH)Mg(OH)I,'}wherein I represents impurities, a, h, z, t and u each being mass fractions ≧0 and ≦50%, x and y each being mass fractions ≧0 and ≦100%, with x+y≧50% by weight, based on the total weight of said at least one calcium-magnesium compound, characterized in that said at least one calcium-magnesium compound is in the form of particles, said composition having an calcium and magnesium accrued content in the form of oxides, greater than or equal to 80% by weight based on the total weight of the composition, said composition being in the form of compacts, each compact being formed with said compacted and shaped particles of calcium-magnesium compounds, said compacts having a Shatter Test Index of less than 10%.2. The composition according to claim 1 , wherein said at least one calcium-magnesium compound has mass fractions such that x+y≧60% by weight claim 1 , based on the total weight of said at least one calcium-magnesium compound.3. The composition according to claim ...
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