CN1482101A - Method of producing potassium sulfate magnesium fertilizer - Google Patents
Method of producing potassium sulfate magnesium fertilizer Download PDFInfo
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- CN1482101A CN1482101A CNA031541992A CN03154199A CN1482101A CN 1482101 A CN1482101 A CN 1482101A CN A031541992 A CNA031541992 A CN A031541992A CN 03154199 A CN03154199 A CN 03154199A CN 1482101 A CN1482101 A CN 1482101A
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- Prior art keywords
- salt
- fertilizer
- potassium
- potassium sulfate
- water
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Abstract
The present invention relates to chemical fertilizer producing technology and is especially the method of producing potassium magnesium sulfate fertilizer in salt field. The technological process includes water dissolution of mixed potassium salt, evaporating crystallization and separation dewatering to obtain potassium magnesium sulfate fertilizer with the water dissolution of mixed potassium salt step and the evaporating crystallization step being completed in salt field. Compared with available technology, the technological process is simple, practical, low in cost, and low in power consumption.
Description
One, technical field: the invention belongs to the chemical fertilizers production technical field, particularly a kind of method of producing potash magnesium sulphate fertilizer by the salt pan.
Two, technical background: the potash magnesium sulphate fertilizer formal name used at school is a schoenite, and its molecular formula is K
2SO
4.MgSO
4.6H
2O, it both can be used for agriculture production as fertilizer, can produce the raw material of vitriolate of tartar again.Produce the method for schoenite at present, mainly contain two kinds, a kind of is to add water or add the vitriolate of tartar saturated solution again in the potassium mixed salt, directly decomposition and inversion produces the method for schoenite, and another kind is to utilize flotation to separate with mechanical means to add water in the potassium mixed salt behind the sodium-chlor again or add water and the method for vitriolate of tartar saturated solution conversion production schoenite.More than two kinds of methods to realize in mechanical means that all its exists investment big, the defective that production cost is high.
Three, summary of the invention: the objective of the invention is the deficiency that exists at prior art and design a kind of production method of new potash magnesium sulphate fertilizer.Advantages such as this method does not need expensive mechanical means, and it has simple for process, and facility investment is few, and energy consumption is low, and production cost is low.
Technical scheme is that the technical process of the production method of this potash magnesium sulphate fertilizer is that water dissolution, evaporative crystallization, separating and dehydrating promptly get potash magnesium sulphate fertilizer in the potassium mixed salt, and the potassium mixed salt is dissolved in water, the evaporative crystallization operation all realizes salt Tanaka.The salt pan potassium ores of potassium mixed salt for adopting vitriolate type bittern to produce, it is the mixture that contains sylvite, carnallitite, kainite, schoenite, halite, epsom salt, being dissolved in water is that water is with potassium mixed salt dissolved process.Evaporative crystallization is the anhydrate process of crystalline sulfuric acid potassic-magnesian fertilizer of spontaneous evaporation in the salt pan, and separating and dehydrating is the process of the xln of potash magnesium sulphate fertilizer being removed mother liquor.Innovative point of the present invention is that the potassium mixed salt is dissolved in water, the evaporative crystallization operation all realizes salt Tanaka, can save a large amount of mechanical means like this, thereby investment and maintenance cost have been saved, evaporative crystallization of the present invention in addition utilizes spontaneous evaporation, so also save a large amount of energy, and reduced productive expense significantly.Technology of the present invention is simple, and is easy to implement, and better economic and social benefit are arranged.
Four, embodiment:
Embodiment 1: adopting the potassium mixed salt with vitriolate type bittern production is raw material, adding water salt Tanaka dissolves the potassium mixed salt, spontaneous evaporation crystallization in the salt pan, evaporation along with moisture content, then the crystal of schoenite is separated out, and when being evaporated to halite or sylvite and beginning to separate out, then stops evaporative crystallization, this bittern should move and use it for anything else, and the schoenite crystal in the salt pan then can get the potassium magnesium sulfate fertilizer product behind the separation removal mother liquor.
Claims (1)
1, a kind of production method of potash magnesium sulphate fertilizer is characterized in that technical process is dissolved in water for the potassium mixed salt.Evaporative crystallization. separating and dehydrating promptly gets potash magnesium sulphate fertilizer, and the potassium mixed salt is dissolved in water, the evaporative crystallization operation all realizes salt Tanaka.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031541992A CN1195710C (en) | 2003-08-29 | 2003-08-29 | Method of producing potassium sulfate magnesium fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031541992A CN1195710C (en) | 2003-08-29 | 2003-08-29 | Method of producing potassium sulfate magnesium fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1482101A true CN1482101A (en) | 2004-03-17 |
| CN1195710C CN1195710C (en) | 2005-04-06 |
Family
ID=34156797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031541992A Expired - Lifetime CN1195710C (en) | 2003-08-29 | 2003-08-29 | Method of producing potassium sulfate magnesium fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1195710C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384786C (en) * | 2006-07-21 | 2008-04-30 | 中蓝连海设计研究院 | Process of preparing magnesium potassium fertilizer directly from bittern |
| CN1810730B (en) * | 2006-02-11 | 2010-12-01 | 国投新疆罗布泊钾盐有限责任公司 | Improved process of preparing magnesium potassium sulfate fertilizer with bittern containing potassium and magnesium sulfite |
| CN1810729B (en) * | 2006-02-11 | 2011-04-27 | 国投新疆罗布泊钾盐有限责任公司 | Process of preparing magnesium potassium sulfate fertilizer with bittern potassium containing magnesium sulfite |
| CN101412639B (en) * | 2008-10-30 | 2011-06-22 | 中国科学院青海盐湖研究所 | Method for preparing potash magnesium sulphate fertilizer from potassium-containing solid mine by separation and extraction |
| CN102701799A (en) * | 2012-05-28 | 2012-10-03 | 山西省交城红星化工有限公司 | Preparation technology of super-activity full water soluble magnesium iron fertilizer |
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN103896683A (en) * | 2014-04-14 | 2014-07-02 | 国投新疆罗布泊钾盐有限责任公司 | Water-soluble instant potassium sulfate fertilizer |
| CN107382381A (en) * | 2017-08-31 | 2017-11-24 | 化工部长沙设计研究院 | A kind of production technology of high-quality potash magnesium sulphate fertilizer |
| CN107903138A (en) * | 2017-12-01 | 2018-04-13 | 中国科学院青海盐湖研究所 | A kind of preparation method and applications of potassic-magnesian fertilizer |
-
2003
- 2003-08-29 CN CNB031541992A patent/CN1195710C/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1810730B (en) * | 2006-02-11 | 2010-12-01 | 国投新疆罗布泊钾盐有限责任公司 | Improved process of preparing magnesium potassium sulfate fertilizer with bittern containing potassium and magnesium sulfite |
| CN1810729B (en) * | 2006-02-11 | 2011-04-27 | 国投新疆罗布泊钾盐有限责任公司 | Process of preparing magnesium potassium sulfate fertilizer with bittern potassium containing magnesium sulfite |
| CN100384786C (en) * | 2006-07-21 | 2008-04-30 | 中蓝连海设计研究院 | Process of preparing magnesium potassium fertilizer directly from bittern |
| CN101412639B (en) * | 2008-10-30 | 2011-06-22 | 中国科学院青海盐湖研究所 | Method for preparing potash magnesium sulphate fertilizer from potassium-containing solid mine by separation and extraction |
| CN102701799A (en) * | 2012-05-28 | 2012-10-03 | 山西省交城红星化工有限公司 | Preparation technology of super-activity full water soluble magnesium iron fertilizer |
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN103896683A (en) * | 2014-04-14 | 2014-07-02 | 国投新疆罗布泊钾盐有限责任公司 | Water-soluble instant potassium sulfate fertilizer |
| CN103896683B (en) * | 2014-04-14 | 2015-09-30 | 国投新疆罗布泊钾盐有限责任公司 | Water-soluble instant potassium sulfate fertilizer |
| CN107382381A (en) * | 2017-08-31 | 2017-11-24 | 化工部长沙设计研究院 | A kind of production technology of high-quality potash magnesium sulphate fertilizer |
| CN107382381B (en) * | 2017-08-31 | 2020-09-15 | 化工部长沙设计研究院 | Production process of high-quality potassium magnesium sulfate fertilizer |
| CN107903138A (en) * | 2017-12-01 | 2018-04-13 | 中国科学院青海盐湖研究所 | A kind of preparation method and applications of potassic-magnesian fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1195710C (en) | 2005-04-06 |
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Effective date of registration: 20171214 Address after: 816099 Building No. 24, Golmud City, Qinghai Province, No. 1 Patentee after: QINGHAI ZHONGXIN GUOAN LITHIUM DEVELOPMENT CO.,LTD. Address before: 816000 Qaidam West Road, Golmud, Qinghai Province, No. 16 Patentee before: QINGHAI CITIC GUOAN SCIENCE AN |
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Granted publication date: 20050406 |
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| CX01 | Expiry of patent term |