Chemistry of inorganic compounds – With additive – For stabilizing crystal size or shape
Patent
1982-09-15
1984-03-20
Meros, Edward J.
Chemistry of inorganic compounds
With additive
For stabilizing crystal size or shape
423395, 423396, C01F 1114
Patent
active
044380836
ABSTRACT:
Process for preparing magnesium nitrate hexahydrate without the need for filtering aids. A process for preparing magnesium nitrate hexahydrate essentially comprises: (a) forming a magnesium oxide or magnesium carbonate suspension in melted magnesium nitrate hexahydrate at a suspension temperature in excess of 90.degree. C.; (b) adding a nitric acid solution to the suspension while stirring thereby forming a reaction mixture containing additional magnesium nitrate hexahydrate; (c) filtering the liquid reaction mixture to obtain a clear magnesium nitrate hexahydrate filtrate; (d) discharging as product a part, corresponding to the amount of magnesium oxide or magnesium carbonate introduced, of the liquid magnesium nitrate hexahydrate obtained as clear filtrate; (e) utilizing the remaining part as liquid medium for the conversion of magnesium oxide or magnesium carbonate with nitric acid. Thermally stabilized ammonium nitrate containing granules may also be prepared containing magnesium nitrate hexahydrate according to the above process.
REFERENCES:
patent: 1844862 (1932-02-01), Mohler
patent: 1865303 (1932-06-01), Charrier
Vermijs Winfried J. W.
Willems Michael H.
Langel Wayne A.
Meros Edward J.
Stamicarbon B.V.
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