CN103803612A - Preparation method of basic magnesium sulfate - Google Patents
Preparation method of basic magnesium sulfate Download PDFInfo
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- CN103803612A CN103803612A CN201210457881.0A CN201210457881A CN103803612A CN 103803612 A CN103803612 A CN 103803612A CN 201210457881 A CN201210457881 A CN 201210457881A CN 103803612 A CN103803612 A CN 103803612A
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Abstract
The invention relates to a preparation method of basic magnesium sulfate. The preparation method comprises the following steps of adding an alkaline solution into a magnesium sulfate solution; then, placing the mixed solution into a reaction kettle to react at the temperature of 200-240 DEG C for 24-48h, wherein the molar concentration of a magnesium salt solution is 20-40%, and the molar concentration of the alkaline solution is 1-5%; finally, centrifugally separating, washing three times by using deionzied water, and drying at the temperature of 60 DEG C for 4h to obtain a magnesium hydroxide product. The alkaline solution is a mixed solution of ammonia water and ammonium acetate. The preparation method has the beneficial effects that a basic magnesium sulfate crystal can be prepared by using a simple method, and the preparation method is suitable for industrial production.
Description
Technical field
The present invention relates to a kind of preparation method of alkali magnesium sulfate, belong to inorganic salt field.
Background technology
The general presoma as preparing magnesium hydroxide, magnesium oxide etc. of alkali magnesium sulfate crystal, status is even more important.But at present because technology of preparing is limit, its industrialization is produced and is not easy.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of preparation method of alkali magnesium sulfate is provided.Can obtain can industrialization alkali magnesium sulfate crystal that produce, pattern homogeneous.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of preparation method of alkali magnesium sulfate, it is characterized in that, comprise the following steps: in Adlerika, add alkali lye, again this mixed solution is put into reactor, reaction times 24-48h, temperature of reaction 200-240 ℃, the wherein volumetric molar concentration 20-40% of magnesium salt solution, the volumetric molar concentration of alkali lye is 1-5%; Finally by centrifugation, with deionized water wash 3 times, under 60 ° of C, dry 4 h obtain magnesium hydroxide product.
Described alkali lye is the mixed solution of ammoniacal liquor and ammonium acetate.
The invention has the beneficial effects as follows: simple method can be prepared alkali magnesium sulfate crystal, is suitable for suitability for industrialized production.
Embodiment
Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of preparation method of alkali magnesium sulfate, it is characterized in that, comprise the following steps: in Adlerika, add alkali lye, again this mixed solution is put into reactor, reaction times 24-48h, temperature of reaction 200-240 ℃, the wherein volumetric molar concentration 20-40% of magnesium salt solution, the volumetric molar concentration of alkali lye is 1-5%; Finally by centrifugation, with deionized water wash 3 times, under 60 ° of C, dry 4 h obtain magnesium hydroxide product.Described alkali lye is the mixed solution of ammoniacal liquor and ammonium acetate.
Claims (2)
1. the preparation method of an alkali magnesium sulfate, it is characterized in that, comprise the following steps: in Adlerika, add alkali lye, again this mixed solution is put into reactor, reaction times 24-48h, temperature of reaction 200-240 ℃, the wherein volumetric molar concentration 20-40% of magnesium salt solution, the volumetric molar concentration of alkali lye is 1-5%; Finally by centrifugation, with deionized water wash 3 times, under 60 ° of C, dry 4 h obtain magnesium hydroxide product.
2. the preparation method of a kind of alkali magnesium sulfate according to claim 1, is characterized in that, described alkali lye is the mixed solution of ammoniacal liquor and ammonium acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457881.0A CN103803612A (en) | 2012-11-15 | 2012-11-15 | Preparation method of basic magnesium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457881.0A CN103803612A (en) | 2012-11-15 | 2012-11-15 | Preparation method of basic magnesium sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103803612A true CN103803612A (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210457881.0A Pending CN103803612A (en) | 2012-11-15 | 2012-11-15 | Preparation method of basic magnesium sulfate |
Country Status (1)
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| CN (1) | CN103803612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291367A (en) * | 2014-09-28 | 2015-01-21 | 西南科技大学 | Production method of magnesium sulfate monohydrate |
| CN109879655A (en) * | 2019-04-09 | 2019-06-14 | 辽宁科大中驰镁建材科技有限公司 | A method of hydraulicity magnesite board is prepared based on medium temperature mould pressing process |
-
2012
- 2012-11-15 CN CN201210457881.0A patent/CN103803612A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291367A (en) * | 2014-09-28 | 2015-01-21 | 西南科技大学 | Production method of magnesium sulfate monohydrate |
| CN104291367B (en) * | 2014-09-28 | 2016-01-13 | 西南科技大学 | A kind of production method of magnesium sulfate monohydrate |
| CN109879655A (en) * | 2019-04-09 | 2019-06-14 | 辽宁科大中驰镁建材科技有限公司 | A method of hydraulicity magnesite board is prepared based on medium temperature mould pressing process |
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Legal Events
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Application publication date: 20140521 |