CN107903138A - A kind of preparation method and applications of potassic-magnesian fertilizer - Google Patents
A kind of preparation method and applications of potassic-magnesian fertilizer Download PDFInfo
- Publication number
- CN107903138A CN107903138A CN201711248403.8A CN201711248403A CN107903138A CN 107903138 A CN107903138 A CN 107903138A CN 201711248403 A CN201711248403 A CN 201711248403A CN 107903138 A CN107903138 A CN 107903138A
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- CN
- China
- Prior art keywords
- potassic
- carnallite
- fertilizer
- magnesian fertilizer
- magnesian
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/04—Fertilisers containing potassium from minerals or volcanic rocks
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Plant Pathology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to technical field of agricultural fertilizers, more particularly to a kind of preparation method of potassic-magnesian fertilizer, it includes step：Carnallite is removed into sodium chloride by evaporative crystallization, the mass percent for obtaining wherein carnallite is not less than 95% potassic-magnesian fertilizer.Present invention also offers the application of the potassic-magnesian fertilizer obtained by above-mentioned preparation method.Potassic-magnesian fertilizer according to the present invention, on the one hand provides a kind of new application of carnallite, changes the particular procedure approach of traditional carnallite, avoids and utilizes old halogen process problem caused by the carnallite production fertilizer such as potassium chloride and potassium sulfate in the prior art；On the other hand directly applying the potassic-magnesian fertilizer not only has crops obvious effect of increasing production, and soil, disease and insect resistance, moisturizing drought resisting can be improved, the potassic-magnesian fertilizer is also free of harmful substance, it is free from environmental pollution, it is a kind of preferable Potassic fertilizer resources, it is particluarly suitable for south east asia to prepare, apply, brand-new feasible way is provided for the carnallite utilization of resources of Southeast Asian countries.
Description
Technical field
The invention belongs to technical field of agricultural fertilizers, it relates in particular to a kind of preparation method and applications of potassic-magnesian fertilizer.
Background technology
Potash fertilizer is a kind of essential important fertilizer for agricultural crops, and it is potassium chloride that presently used potash fertilizer is most of
And potassium sulfate, potassium chloride, potassium sulfate are mainly produced by floatation.The maturation process of production potassium chloride mainly has cool technology-floating
Select method, reverse flotation-cold junction crystallization, adding halogen method, crystallization method, cooling dilution crystallization, reaction, extraction and crystallization, coupling crystallisation
Deng being largely to use potassium chloride conversion method outside the domestic salt lake of production potassium sulfate sulfuric acid salt form at present.
For the country such as Laos, Thailand, it can all be produced during potash fertilizer is produced using carnallite largely contains
The old halogen of magnesium chloride, old halogen not only pollute the environment, its processing procedure is of high cost, restrict and have impact on and are produced using carnallite
The development of potash fertilizer enterprise and the comprehensive utilization of carnallite.
At the same time, magnesium is one of main component for forming plant inner chlorophyll, related with the photosynthesis of plant；Magnesium
It is the activator of diphosphoribulose carboxylase again, assimilation of the plant to carbon dioxide can be promoted；Magnesium ion can also excite
The activity of the glucokinase related with carbohydrate metabolism, fructokinase and phosphoglucomutase；And DNA polymerizations
The activator of enzyme, can promote the synthesis of DNA.In addition, magnesium is also related with fat metabolism, acetic acid can be promoted to be changed into acetyl coenzyme A,
So as to accelerate the synthesis of aliphatic acid.Plant magnesium deficiency then be obstructed by internal metabolism, the maturation of development and seed to tender tissue
Influence outstanding big.It is more in rainfall, the heavier soil of Weathering And Leaching Behavior, generally containing magnesium it is less, the easy magnesium deficiency of crop, as south China by
In granite or the soil of gneiss development, Quaternary red clay and the low sand of exchange capacity, magnesium content is relatively low.Cause
This, for farmland, while application of potash fertilizer, fertiliser containing magnesium is also a kind of essential fertilizer.
The content of the invention
To solve the above-mentioned problems of the prior art, the present invention provides a kind of preparation method of new potassic-magnesian fertilizer,
The potassic-magnesian fertilizer is also applied with fertiliser containing magnesium using carnallite as main component while potash fertilizer is applied.
In order to reach foregoing invention purpose, present invention employs following technical solution：
A kind of preparation method of potassic-magnesian fertilizer, including step：Carnallite is removed into sodium chloride by evaporative crystallization, obtains potassium
Fertiliser containing magnesium；Wherein, in the potassic-magnesian fertilizer, the mass percent of carnallite is not less than 95%.
Further, the specific method of the evaporative crystallization is：The carnallite is dissolved at 70 DEG C~90 DEG C, is obtained
Obtain potassium chloride and sodium chloride is total to the bittern of saturation, the bittern is cooled down, the solid separated out when no more than 30 DEG C is
The potassic-magnesian fertilizer.
Further, the specific method carnallite dissolved at 70 DEG C~90 DEG C is that the carnallite is molten
70 DEG C~90 DEG C are heated to after solution, or the carnallite is dissolved using 70 DEG C~90 DEG C of water.
Further, the potassic-magnesian fertilizer is crushed.
Another object of the present invention, which also resides in, provides answering for the potassic-magnesian fertilizer that a kind of as above any preparation method obtains
With the potassic-magnesian fertilizer is directly applied in farmland.
Further, the farmland is poor magnesia earth.
Further, the farmland have by granite or the gneiss soil that forms of development or Quaternary red clay,
Or low exchange capacity sand.
Further, the farmland is south east asia farmland.
Carnallite is obtained wherein carnallite purity by the present invention by the way that sodium chloride directly is removed a step after evaporative crystallization
New water miscible potassic-magnesian fertilizer more than 95%；Thus, one provides a kind of new application of carnallite, changes traditional light
The particular procedure approach of halogen stone；Not only have secondly the potassic-magnesian fertilizer using carnallite as bulk composition is directly applied to crops significantly
Effect of increasing production, and soil, disease and insect resistance, moisturizing drought resisting can be improved, which is also free of harmful substance, does not pollute ring
Border, is a kind of preferable Potassic fertilizer resources；Third, the preparation process of the potassic-magnesian fertilizer is simple, it also avoid utilizing light in the prior art
The processing step for the old halogen that halogen stone ore production potassium chloride and potassium sulfate etc. fertilizer produces；Fourth, potassic-magnesian fertilizer is outstanding according to the present invention
It is adapted to prepare in south east asia, applies, and there are abundant carnallite resource in Thailand, the Laos of south east asia, but due to one
As the old halogen that produces in treatment process can not handle and seriously restrict the potash fertilizer industry development of Southeast Asian countries, thus according to this hair
The preparation method of bright new potassic-magnesian fertilizer also provides brand-new feasible way for the carnallite utilization of resources of Southeast Asian countries.
Embodiment
Hereinafter, detailed description of the present invention in future embodiment.However, it is possible to implement this hair in many different forms
It is bright, and the specific embodiment of the invention that should not be construed as limited to illustrate here.Conversely, there is provided these embodiments be for
Explanation the principle of the present invention and its practical application, so that others skilled in the art are it will be appreciated that the present invention's is various
Embodiment and the various modifications for being suitable for specific intended application.
The present invention provides a kind of preparation method of potassic-magnesian fertilizer, it comprises the following steps：Carnallite is tied by evaporating
Crystalline substance removes sodium chloride, that is, the mass percent for obtaining wherein carnallite is not less than 95% potassic-magnesian fertilizer.
Specifically, the specific method of evaporative crystallization is：Carnallite is dissolved at 70 DEG C~90 DEG C, obtains potassium chloride
The bittern of saturation is total to sodium chloride, which is cooled down, the solid separated out when no more than 30 DEG C, preferably 30 DEG C or so
As above-mentioned potassic-magnesian fertilizer.
Preferably, can add after carnallite is dissolved by the specific method that carnallite dissolves at 70 DEG C~90 DEG C
Heat dissolves carnallite to 70 DEG C~90 DEG C, or using 70 DEG C~90 DEG C of water.
In order to make the potassic-magnesian fertilizer be more easy to be absorbed by crops in use, preferably the potassic-magnesian fertilizer is crushed.
Potassic-magnesian fertilizer provided by the invention is a kind of mixed fertilizer using carnallite as bulk composition, passes through letter with carnallite
Either simplex skill is directly prepared into potassic-magnesian fertilizer, on the one hand provides a kind of new application of carnallite, changes traditional carnallite and is used as life
The particular procedure approach of potassium chloride is produced, thus avoids and produces old halogen, will not bring and be asked caused by old halogen processing procedure
Topic；On the other hand, the potassic-magnesian fertilizer of the invention using carnallite as bulk composition, which is directly applied, not only has crops obvious increasing
Effect is produced, and soil, disease and insect resistance, moisturizing drought resisting can be improved, which is also free of harmful substance, free from environmental pollution,
It is a kind of preferable Potassic fertilizer resources.
Potassic-magnesian fertilizer according to the present invention is directly applied in farmland when in use, which is particularly suitable for having
The soil or the poor magnesia earth such as Quaternary red clay or low exchange capacity sand formed by granite or gneiss development, it is such as outstanding
It is suitable for prepare, apply in south east asia；This is because there are abundant carnallite money in the Thailand of south east asia, Laos
Source, but the potash fertilizer industry development of Southeast Asian countries is seriously restricted since the old halogen produced in general treatment process can not be handled,
Also provided entirely for the carnallite utilization of resources of Southeast Asian countries thus according to the preparation method of the new potassic-magnesian fertilizer of the present invention
New feasible way.
The using effect of potassic-magnesian fertilizer provided by the invention is tested.
The crops such as the coffee of south east asia, banana, pineapple, rubber are more sensitive to magnesium deficiency, potassic-magnesian fertilizer using the present invention
Small scale experiments are carried out in Laos to obtain with result shown in table 1：
Influence of 1 potassic-magnesian fertilizer of table to the different crops of Laos
Data above is scaled in units of mu.
It can thus be seen that potassic-magnesian fertilizer has good increasing particularly with the crops of south east asia according to the present invention
Produce effect.
Although the present invention has shown and described with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case where not departing from the spirit and scope of the present invention limited by claim and its equivalent, can carry out herein form and
Various change in details.
Claims (8)
1. a kind of preparation method of potassic-magnesian fertilizer, it is characterised in that including step：Carnallite is removed into chlorination by evaporative crystallization
Sodium, obtains potassic-magnesian fertilizer；Wherein, in the potassic-magnesian fertilizer, the mass percent of carnallite is not less than 95%.
2. preparation method according to claim 1, it is characterised in that the specific method of the evaporative crystallization is：By described in
Carnallite dissolves at 70 DEG C~90 DEG C, obtains potassium chloride and sodium chloride is total to the bittern of saturation, the bittern is cooled down,
The solid separated out when no more than 30 DEG C is the potassic-magnesian fertilizer.
3. preparation method according to claim 2, it is characterised in that dissolve the carnallite at 70 DEG C~90 DEG C
Specific method for after carnallite dissolving 70 DEG C~90 DEG C will be heated to, or using described in 70 DEG C~90 DEG C of water dissolving
Carnallite.
4. according to any preparation methods of claim 1-3, it is characterised in that the potassic-magnesian fertilizer is crushed.
5. the application for the potassic-magnesian fertilizer that a kind of preparation method as described in claim 1-4 is any obtains, it is characterised in that by described in
Potassic-magnesian fertilizer is directly applied in farmland.
6. application according to claim 5, it is characterised in that the farmland is poor magnesia earth.
7. application according to claim 6, it is characterised in that the farmland has to be formed by granite or gneiss development
Soil or Quaternary red clay or low exchange capacity sand.
8. application according to claim 7, it is characterised in that the farmland is south east asia farmland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248403.8A CN107903138A (en) | 2017-12-01 | 2017-12-01 | A kind of preparation method and applications of potassic-magnesian fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248403.8A CN107903138A (en) | 2017-12-01 | 2017-12-01 | A kind of preparation method and applications of potassic-magnesian fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107903138A true CN107903138A (en) | 2018-04-13 |
Family
ID=61848472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711248403.8A Pending CN107903138A (en) | 2017-12-01 | 2017-12-01 | A kind of preparation method and applications of potassic-magnesian fertilizer |
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| Country | Link |
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| CN (1) | CN107903138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453746A (en) * | 2020-04-01 | 2020-07-28 | 蔡梅初 | Preparation and application method of bittern preparation for salt pan capable of improving quality and yield of agricultural products |
| WO2021223668A1 (en) * | 2020-05-06 | 2021-11-11 | 中国科学院青海盐湖研究所 | Method for using carnallite to prepare potassium chloride |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038442A (en) * | 1989-05-15 | 1990-01-03 | 冶金部建筑研究总院 | Slag-base white cement |
| CN1236734A (en) * | 1998-05-21 | 1999-12-01 | 中国科学院青海盐湖研究所 | Process for preparing soft leonite |
| CN1482101A (en) * | 2003-08-29 | 2004-03-17 | 青海中信国安科技发展有限公司 | Method of producing potassium sulfate magnesium fertilizer |
| CN101462743A (en) * | 2007-12-17 | 2009-06-24 | 贵阳铝镁设计研究院 | Method for preparing low sodium low potassium content carnallite |
-
2017
- 2017-12-01 CN CN201711248403.8A patent/CN107903138A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038442A (en) * | 1989-05-15 | 1990-01-03 | 冶金部建筑研究总院 | Slag-base white cement |
| CN1236734A (en) * | 1998-05-21 | 1999-12-01 | 中国科学院青海盐湖研究所 | Process for preparing soft leonite |
| CN1482101A (en) * | 2003-08-29 | 2004-03-17 | 青海中信国安科技发展有限公司 | Method of producing potassium sulfate magnesium fertilizer |
| CN101462743A (en) * | 2007-12-17 | 2009-06-24 | 贵阳铝镁设计研究院 | Method for preparing low sodium low potassium content carnallite |
Non-Patent Citations (1)
| Title |
|---|
| 山东省盐务局: "《山东省盐业志》", 30 June 1992, 齐鲁书社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453746A (en) * | 2020-04-01 | 2020-07-28 | 蔡梅初 | Preparation and application method of bittern preparation for salt pan capable of improving quality and yield of agricultural products |
| WO2021223668A1 (en) * | 2020-05-06 | 2021-11-11 | 中国科学院青海盐湖研究所 | Method for using carnallite to prepare potassium chloride |
| US11851340B2 (en) | 2020-05-06 | 2023-12-26 | Qinghai Institute Of Salt Lakes, Chinese Academy Of Sciences | Method for preparing potassium chloride from carnallite |
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Application publication date: 20180413 |
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