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Aluminate cement containing nano magnesium aluminate spinel and preparation method thereof
The invention relates to aluminate cement containing nano magnesium aluminate spinel and a preparation method thereof. The technical scheme comprises the following steps: firstly, milling 15-85wt% of natural dolomite and 15-85wt% of industrial alumina for 0.5-3h in a manner of ball milling, pressing the milled material into blocks by a machine; placing the blocks into a high temperature sintering furnace, heating up to 1000-1600 DEG C with a heating rate of 1-25 DEG C/min, preserving heat for 0.1-5h, cooling naturally in furnace, and crushing in a manner of vibration, thus obtaining the aluminate cement containing nano magnesium aluminate spinel. Grain size of the natural dolomite is 5-50 micrometers, and content of CaO is 20-40wt%, content of MgO is 20-40wt%. Grain size of the industrial alumina is 5-44 micrometers; and purity of the industrial alumina is greater than 95.0wt%. The preparation method has the characteristics of simple technology, low cost, controllable grain size and applicability in industrializing production; and grain size of the prepared aluminate cement containing nano magnesium aluminate spinel is only 50-500nm.
Aluminate cement containing nano magnesium aluminate spinel and preparation method thereof
The invention relates to aluminate cement containing nano magnesium aluminate spinel and a preparation method thereof. The technical scheme comprises the following steps: firstly, milling 15-85wt% of natural dolomite and 15-85wt% of industrial alumina for 0.5-3h in a manner of ball milling, pressing the milled material into blocks by a machine; placing the blocks into a high temperature sintering furnace, heating up to 1000-1600 DEG C with a heating rate of 1-25 DEG C/min, preserving heat for 0.1-5h, cooling naturally in furnace, and crushing in a manner of vibration, thus obtaining the aluminate cement containing nano magnesium aluminate spinel. Grain size of the natural dolomite is 5-50 micrometers, and content of CaO is 20-40wt%, content of MgO is 20-40wt%. Grain size of the industrial alumina is 5-44 micrometers; and purity of the industrial alumina is greater than 95.0wt%. The preparation method has the characteristics of simple technology, low cost, controllable grain size and applicability in industrializing production; and grain size of the prepared aluminate cement containing nano magnesium aluminate spinel is only 50-500nm.
Aluminate cement containing nano magnesium aluminate spinel and preparation method thereof
CHEN PING AN (author) / LIAN JIANWEI (author) / LI XIANGCHENG (author) / ZHU BOQUAN (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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