CN106396746A - Method for preparing silicon-magnesium-potassium-sulfur compound fertilizer from serpentine prepared by activation alkali fusion method - Google Patents
Method for preparing silicon-magnesium-potassium-sulfur compound fertilizer from serpentine prepared by activation alkali fusion method Download PDFInfo
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- CN106396746A CN106396746A CN201610814169.XA CN201610814169A CN106396746A CN 106396746 A CN106396746 A CN 106396746A CN 201610814169 A CN201610814169 A CN 201610814169A CN 106396746 A CN106396746 A CN 106396746A
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- Prior art keywords
- serpentine
- magnesium
- silicon
- fertilizer
- potassium
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Classifications
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- 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
Abstract
The invention relates to a method for preparing a silicon-magnesium-potassium-sulfur compound fertilizer from serpentine treated by an activation alkali fusion method, and belongs to the technical field of the preparation of compound fertilizers. The method for preparing the silicon-magnesium-potassium-sulfur compound fertilizer from the serpentine treated by the activation alkali fusion method is characterized in that a raw-material formula comprises the following components in percentages by weight: 60 to 65 percent of the serpentine in which the content of SiO2 is not less than 38 percent and the content of MgO is not less than 39%, 24 to 35 percent of solid KOH and 5 to 16 percent of 30-percent to 49-percent sulfuric acid. The invention provides the silicon-magnesium-potassium-sulfur compound fertilizer containing multiple elements of silicon, magnesium, potassium and sulfur, wherein the available silicon mainly exists in the form of a soluble silicate, and is beneficial to the absorption by a crop. The problem that the utilization rate of a silicon element is low, which exists in a current calcium-magnesium-phosphorus fertilizer prepared from the serpentine is solved; moreover, through the sulfuric acid used for regulating pH (potential of Hydrogen), a sulfur element is increased for the fertilizer; the effect of part of a sulfur fertilizer can be achieved. Moreover, the entire production process is carried out in a solid or semisolid state; materials are all used as fertilizers after a reaction is complete; a waste solution and a waste material are not generated; the method for preparing the silicon-magnesium-potassium-sulfur compound fertilizer from the serpentine treated by the activation alkali fusion method is green and environment-friendly, and has a favorable market prospect.
Description
Technical field
The invention belongs to composite fertilizer's preparing technical field, it is related to a kind of activation alkali fusion process serpentine and prepares silicon magnesium potassium sulphur
The method of composite fertilizer.
Background technology
Serpentine is because of the green black alternate decorative pattern that its outward appearance is in often like snakeskin, therefore claims serpentine, and being that China is a large amount of exists
Ore materials, extensively, there are Shimian, Sichuan county, Donghai Area, Jiangsu county, District, Xinyang Area, Henan Province, Ningqiang, Shaanxi county in the main mine place of production to distributional region
Deng having verified reserves more than 500,000,000 tons.
Serpentine is 1 being composited by silicon-oxy tetrahedron and oxyhydrogen magnesium octahedron:1 type layer silicate mineral, its reason
It is 3MgO 2SiO by chemical formula2·2H2O, the composition being mingled with has CaO, Fe2O3、Al2O3, NiO etc., the serpentine of different sources
The content of its various mineralogical composition of ore deposit and physical property are different from.
In serpentine tailing, Mg, Si and some other trace element have certain improving effect, the unit such as Mg, Si to soil
Element is also the useful nutrient that can be absorbed by plants and promote plant growth, by the use of serpentine tailing as agricultural fertilizer, at home and abroad
It is widely used.
The nineties in last century, serpentine power is directly used as mineral fertilizer by researcher, applies through agricultural production, volume increase
Effect is obvious.They pass through the testing research that pickle test and serpentine decompose, and find that the brucite in serpentine is easy to brokenly
Bad, magnesium ion is present in soil as exchange ion state, easily absorbed by crops.Chromium in serpentine, cobalt, manganese etc. are micro simultaneously
Element is also the referred to as micro- fertilizer of microelement fertilizer required for plant growth.Serpentine was once directly made by the countries such as the Soviet Union, Poland, Czech
Fertiliser containing magnesium for slow or coordinate other fertilizer to apply to improve its yield in tea place, potato, corn, clover and beet.Snake
Line stone is directly used as agricultural fertilizer although crop has the advantages that certain absorption and not easily runs off to silicon magnesium；But it is effective in soil
Released nutrient very little, far from the demand meeting some crops；And introduce a large amount of slags and be unfavorable for soil improvement, ore utilizes
It is worth too low.
Serpentine and phosphorus ore, after high-temperature fusion in blast furnace, are packed after water quenching, draining, drying, pulverizing, obtain vitrifying
Calcium magnesium phosphate.This chemical fertilizer belongs to citrate acid soluble phosphatic fertilizer, containing effective P2O5：12%~25%、MgO：8%~20%、CaO：25%~40%、
SiO2：20%~35%；Have that physical property is good, do not absorb water, do not lump, not containing free acid, corrosion-free to packaging material, produce work
The advantages of skill is simple.But the nutrient in fertilizer is all solubility in citric acid, fertilizer efficiency is slower；Melten glass temperature typically 1200 ~
1600 DEG C, energy consumption is big；The fluoride pollution atmospheric environment that furnace gas is discharged, and market is poor.
So far, on market circulation serpentine fertilizer, mostly with based on magnesium therein, and and magnesia share
Close silica is but not efficiently used.
Research shows, siliceous fertilizer had both been provided that nutrient it is also possible to make the conditioner of soil, the structure of improved soil.Using silicon
Fertilizer can lift disease-resistant, the insect resistance capacity of plant.Siliceous fertilizer can be with the cell membrane of fortification of plants, thus lifting the strong of plant stalk
Degree.Silicon, by the phosphate reaction with indissoluble, displaces phosphate anion, the phosphorus in activating soil, thus improved soil.
Content of the invention
For the deficiency in current serpentine production technique for fertilizer, the SiO in serpentine2It is not efficiently used, in phosphorus
Silicon magnesium-phosphorus fertilizer industry drastically dim the asking of atrophy application prospect that the impact of amine, urea and other efficient compound fertilizer is lower and leads to
Topic.For this situation, the purpose of the present invention is to propose to a kind of brand-new, raw material sources extensively, be applied to large-scale promotion
Silicon magnesium potassium sulphur composite heat transfer formula and manufacturing technique method.
The present invention propose a kind of activation alkali fusion process serpentine prepare Gui Meijia sulphur composite fertilizer method it is characterised in that
There is following technical process and step：
A, being combined fertilizer formula using silicon magnesium potassium sulphur is（wt%）： SiO2Content>38%, content of MgO>39% serpentine 60% ~ 65%,
Solid KOH 24% ~ 35%, 30% ~ 49% sulfuric acid 5% ~ 16%；
Serpentine is crushed by b using jaw crusher, is re-fed into the powdery that 150 ~ 200 mesh worn into by ball mill；
C, above-mentioned (b) gained powdery serpentine and solid KOH is pressed 10/4 ~ 10/10 ratio uniform mixing；
D, above-mentioned (c) gained mixture is sent in resistance furnace, roasting at 500 ~ 700 DEG C；
E, above-mentioned (d) gained solid is tuned into pasty state by the sulfuric acid using 30% ~ 49%, and pH is adjusted to 7 ~ 9；
F, the drying box that above-mentioned (e) gained pasty material is sent into 60 ~ 100 DEG C is dried, and ball milling sent into after crushing by gained solid
Machine obtains the powdery solid of 100 mesh, packed products.
The inventive method adopts 500 ~ 700 DEG C of pyroreaction condition, and snake stone structure is destroyed, reaction mass activity
Strengthen, it is hereby achieved that the amount of higher soluble silicon, the fertilizer efficiency of strengthening gained fertilizer, improve the comprehensive utilization of serpentine ore
Efficiency, this fertilizer can lift the pH of soil, plays the effect of improved soil.Adjust sulfuric acid used by pH, be that fertilizer adds element sulphur,
The effect of part sulfur fertilizer can be played.And react in the state of whole process is in solid or semisolid and carry out, the completely rear material of reaction is all
As Fertilizer application, do not produce waste liquid waste, environmental protection.
Specific embodiment
Embodiment
The technical process of the present embodiment and step are described below：
The serpentine power of gained after the size-reduced attrition process of the serpentine picking up from serpentinite ore deposit is processed, crosses 200 mesh sieves, by snake
Line stone ore powder is mixed with solid KOH, and mass ratio is 10:5, in Muffle furnace, then heat roasting 4 hours, temperature control is
700℃；Calcined solids are tuned into pasty state with 30% sulfuric acid, and pH is adjusted to 7 ~ 9；Then pastel is sent into 100 DEG C of drying boxes to dry
Dry；Ball mill sent into by gained solid, obtains the powder product of 100 mesh.Analyze after tested, water-soluble silicon accounts for silicon total amount in raw material
18% about.
Claims (1)
1. a kind of activation alkali fusion process serpentine prepares the method for Gui Meijia sulphur composite fertilizer it is characterised in that having following work
Skill process and step：
A, being combined fertilizer formula using silicon magnesium potassium sulphur is（wt%）： SiO2Content>38%, content of MgO>39% serpentine 60% ~ 65%,
Solid KOH 24% ~ 35%, 30% ~ 49% sulfuric acid 5% ~ 16%；
Serpentine is crushed by b using jaw crusher, is re-fed into the powdery that 150 ~ 200 mesh worn into by ball mill；
C, above-mentioned (b) gained powdery serpentine and solid KOH is pressed 10/4 ~ 10/10 ratio uniform mixing；
D, above-mentioned (c) gained mixture is sent in resistance furnace, roasting at 500 ~ 700 DEG C；
E, above-mentioned (d) gained solid is tuned into pasty state by the sulfuric acid using 30% ~ 49%, and pH is adjusted to 7 ~ 9；
F, the drying box that above-mentioned (e) gained pasty material is sent into 60 ~ 100 DEG C is dried, and ball milling sent into after crushing by gained solid
Machine obtains the powdery solid of 100 mesh, packed products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814169.XA CN106396746A (en) | 2016-09-10 | 2016-09-10 | Method for preparing silicon-magnesium-potassium-sulfur compound fertilizer from serpentine prepared by activation alkali fusion method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814169.XA CN106396746A (en) | 2016-09-10 | 2016-09-10 | Method for preparing silicon-magnesium-potassium-sulfur compound fertilizer from serpentine prepared by activation alkali fusion method |
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| CN106396746A true CN106396746A (en) | 2017-02-15 |
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| CN201610814169.XA Pending CN106396746A (en) | 2016-09-10 | 2016-09-10 | Method for preparing silicon-magnesium-potassium-sulfur compound fertilizer from serpentine prepared by activation alkali fusion method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2763050C1 (en) * | 2021-07-01 | 2021-12-27 | Магомет Абубекирович Конов | Method for producing carbon fertilizer |
| CN114716269A (en) * | 2022-03-31 | 2022-07-08 | 华南理工大学 | Method for preparing citrate soluble fertilizer by roasting, detoxifying and activating asbestos tailings or nickel-iron slag |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570032A (en) * | 2012-07-18 | 2014-02-12 | 中国石油大学(北京) | Preparation method for active aluminosilicate |
| WO2015154887A1 (en) * | 2013-04-10 | 2015-10-15 | Cambridge Carbon Capture Ltd | Method and system of activation of mineral silicate minerals |
-
2016
- 2016-09-10 CN CN201610814169.XA patent/CN106396746A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570032A (en) * | 2012-07-18 | 2014-02-12 | 中国石油大学(北京) | Preparation method for active aluminosilicate |
| WO2015154887A1 (en) * | 2013-04-10 | 2015-10-15 | Cambridge Carbon Capture Ltd | Method and system of activation of mineral silicate minerals |
Non-Patent Citations (1)
| Title |
|---|
| 巫汉泉: "用煅烧和化学方法使蛇纹石中的氧化镁活化-石棉尾矿的利用（述评）", 《矿产保护与利用》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2763050C1 (en) * | 2021-07-01 | 2021-12-27 | Магомет Абубекирович Конов | Method for producing carbon fertilizer |
| CN114716269A (en) * | 2022-03-31 | 2022-07-08 | 华南理工大学 | Method for preparing citrate soluble fertilizer by roasting, detoxifying and activating asbestos tailings or nickel-iron slag |
| CN114716269B (en) * | 2022-03-31 | 2023-11-10 | 华南理工大学 | Method for preparing citrate-soluble fertilizer by roasting and detoxication/activation of asbestos tailings or ferronickel slag |
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Application publication date: 20170215 |