CN1109845A - Process for directly producing magnesium sulfate monohydrate - Google Patents
Process for directly producing magnesium sulfate monohydrate Download PDFInfo
- Publication number
- CN1109845A CN1109845A CN 94117954 CN94117954A CN1109845A CN 1109845 A CN1109845 A CN 1109845A CN 94117954 CN94117954 CN 94117954 CN 94117954 A CN94117954 A CN 94117954A CN 1109845 A CN1109845 A CN 1109845A
- Authority
- CN
- China
- Prior art keywords
- magnesium sulfate
- sulfate monohydrate
- directly producing
- producing magnesium
- chemical reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229940076230 MAGNESIUM SULFATE MONOHYDRATE Drugs 0.000 title claims abstract description 12
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical compound O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 229940091250 Magnesium supplements Drugs 0.000 claims abstract 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052749 magnesium Inorganic materials 0.000 claims abstract 3
- 239000011777 magnesium Substances 0.000 claims abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000002893 slag Substances 0.000 claims 2
- 235000015076 Shorea robusta Nutrition 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L Magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 235000012245 magnesium oxide Nutrition 0.000 description 6
- 235000014380 magnesium carbonate Nutrition 0.000 description 5
- 239000011776 magnesium carbonate Substances 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229940061634 Magnesium sulfate heptahydrate Drugs 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
Abstract
The process for directly producing magnesium sulfate monohydrate features the direct reaction of magnesium-containing raw material, such as sintered bitter earth or giobertite, on concentrated sulfuric acid. Obtained mixture contains magnesium sulfate monohydrate.
Description
The invention belongs to the chemical industry class.
Traditional magnesium sulfate monohydrate production method mainly is an aqua-solution method, and promptly magnesium sulfate monohydrate is separated out in crystallization in solution, and perhaps first crystallization goes out magnesium sulfate heptahydrate, thereafter again drying and dehydrating to magnesium sulfate monohydrate.Though this kind method can be produced highly purified product, the production process complexity, production cost is higher.
The objective of the invention is to propose a kind of method, production contains the not too high magnesium sulfate monohydrate of scale.
The method of solution task is based on following chemical reaction.
MgO in the reaction formula (1) is the main component of calcined magnesite (magnesia).Generally purity is more than 80%; MgCO in the reaction formula (2)
3It is the main component of raw magnesite.
Based on above condition, directly give birth to and vitriol oil effect at industrial calcined magnesite (magnesia) or the raw magnesite of can using, through simply measuring, mix, but direct production goes out magnesium sulfate monohydrate.
Compared with prior art, it is cheap and easy to get that the present invention has raw material, handling ease, lower-cost advantage.
Operating process of the present invention is as follows:
The vitriol oil that measured and magnesia or the raw magnesite pulverized are mixed, stir, promptly obtain magnesium sulfate monohydrate after reaction finishes.
Embodiment one
47 kilograms magnesias (containing MgO 80%) and 100 kilograms of vitriol oils (content 98%) are mixed, stir, obtain 145 kilograms of mixtures, wherein the content of magnesium sulfate monohydrate is 91%.
Claims (2)
1, a kind of direct method is produced magnesium sulfate monohydrate, it is characterized in that with the vitriol oil with contain magnesium slag and directly mix the generation chemical reaction.
2, require the 1 described magnesium slag that contains as claim, it is characterized in that its can with sulfuric acid generation chemical reaction, generate sal epsom or its moisture salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117954 CN1109845A (en) | 1994-11-09 | 1994-11-09 | Process for directly producing magnesium sulfate monohydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117954 CN1109845A (en) | 1994-11-09 | 1994-11-09 | Process for directly producing magnesium sulfate monohydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1109845A true CN1109845A (en) | 1995-10-11 |
Family
ID=5038593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94117954 Pending CN1109845A (en) | 1994-11-09 | 1994-11-09 | Process for directly producing magnesium sulfate monohydrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109845A (en) |
Cited By (1)
| 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 |
-
1994
- 1994-11-09 CN CN 94117954 patent/CN1109845A/en active Pending
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 |
| CN104291367B (en) * | 2014-09-28 | 2016-01-13 | 西南科技大学 | A kind of production method of magnesium sulfate monohydrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |