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Preparation method of magnesium oxide-nickel oxide-titanium dioxide composite material
The invention relates to a preparation method of a magnesium oxide-nickel oxide-titanium dioxide composite material and belongs to the technical field of the inorganic nonmetallic material. The magnesium chloride, nickel chloride and titanyl sulfate are taken as the raw materials, the preparation method comprises the following steps: preparing the solution from the raw materials in parts by weight: 80-90 parts of MgO, 5-10 parts of NiO, 5-10 parts of TiO2, adding alkali and titrating, controlling the ph value to be 12-13 to obtain the precipitate, washing, drying, keeping the temperature for 0.5-1h at 600-650 DEG C to obtain the composite powder, dry pressing the composite powder via the pressure more than 150MPa, keeping the temperature for 3h at 1400-1500 DEG C and calcining to obtain the composite material. The composite powder prepared by the method is high in purity and small in granularity; the oxides are evenly mixed and the activity is great; the composite material is obtained by calcining the composite powder, the firing temperature is low, the clinker structure is compact, the apparent porosity is low and the hydrate resistance property is good.
Preparation method of magnesium oxide-nickel oxide-titanium dioxide composite material
The invention relates to a preparation method of a magnesium oxide-nickel oxide-titanium dioxide composite material and belongs to the technical field of the inorganic nonmetallic material. The magnesium chloride, nickel chloride and titanyl sulfate are taken as the raw materials, the preparation method comprises the following steps: preparing the solution from the raw materials in parts by weight: 80-90 parts of MgO, 5-10 parts of NiO, 5-10 parts of TiO2, adding alkali and titrating, controlling the ph value to be 12-13 to obtain the precipitate, washing, drying, keeping the temperature for 0.5-1h at 600-650 DEG C to obtain the composite powder, dry pressing the composite powder via the pressure more than 150MPa, keeping the temperature for 3h at 1400-1500 DEG C and calcining to obtain the composite material. The composite powder prepared by the method is high in purity and small in granularity; the oxides are evenly mixed and the activity is great; the composite material is obtained by calcining the composite powder, the firing temperature is low, the clinker structure is compact, the apparent porosity is low and the hydrate resistance property is good.
Preparation method of magnesium oxide-nickel oxide-titanium dioxide composite material
WANG YILONG (Autor:in)
13.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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