CN1245355C - Production method of potassic magnesium fertilizer - Google Patents
Production method of potassic magnesium fertilizer Download PDFInfo
- Publication number
- CN1245355C CN1245355C CN 03126122 CN03126122A CN1245355C CN 1245355 C CN1245355 C CN 1245355C CN 03126122 CN03126122 CN 03126122 CN 03126122 A CN03126122 A CN 03126122A CN 1245355 C CN1245355 C CN 1245355C
- Authority
- CN
- China
- Prior art keywords
- magnesium
- fertilizer
- potassium
- calcium
- sodium
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fertilizers (AREA)
Abstract
The present invention relates to a production method of a potassium-magnesium fertilizer, which belongs to the technical field of the production technology of the fertilizer containing potassium. The production method comprises the following steps: ore containing potassium whose mass percent of potassium oxide is larger than 11% and calcium carbonate minerals or/and magnesium carbonate minerals are taken according to the mass ratio of 1:0.80 to 1.10 to be crushed, and diluted hydrochloric acid or diluted sulfuric acid whose pH is from 3 to 5 is used for soaking and drying; an activating agent is added to react with the melt-spinning method of a blastfurnace at the temperature of 1200 to 1450 DEG C for 2 to 4 hours; shock cooling is carried out for milling and granulation; the activating agent is selected from silicates A of aluminum, magnesium and sodium, sulfate and carbonates B of calcium, magnesium, aluminum, sodium and ammonium, and halides C of calcium, magnesium, aluminum and sodium, the ratio of the quality dosage of A and B to C is 5 to 15:15 to 55:5 to 40, and the dosage of the activating agent is larger than 0 to 10% of the complete quantity of furnace charge; a proportioning glass structure factor ObYb is equal to 2.70 to 2.95; the cooling speed of the melting charge is from 250 to 350 DEG C per minute, and the melting charge is cooled to 800 to 850 DEG C; the crushing granularity in the first step is from 20 to 80mm of particle diameter; and the acid leaching time is from 30 to 120 minutes. The method has the advantages of reasonable formula and high fertilizer rate. The potassium-magnesium fertilizer produced with the method has good fertilizer effect.
Description
Technical field
The invention belongs to and contain the potassic fertilizer technical field of producing, particularly a kind of method of utilizing phosphate-containing ore to produce the solubility in citric acid potassic-magnesian fertilizer.
Background technology
When utilizing blast furnace melt to produce fused(calcium magnesium)phosphate, use Rock Phosphate (72Min BPL) and serpentine, rhombspar or Wingdale consolute, serpentine, rhombspar or Wingdale use as flux.The phosphorus ore resource that this method utilizes nature to exist is produced fused(calcium magnesium)phosphate, and cost is lower.But used flux only produces limited short molten effect to furnace charge, and is little to reducing fusing point, the quality (grade) that improves fertilizer and transformation efficiency gain.And serpentine resource is limited, can not use more.If merely Rock Phosphate (72Min BPL) is changed into potassium ore, use aforesaid method then to be difficult to produce the solubility in citric acid potassic-magnesian fertilizer.
Summary of the invention
The object of the invention is to provide a kind of and fills a prescription rationally, becomes the high solubility in citric acid potassic-magnesian fertilizer production method of fertile rate.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: a kind of potassic-magnesian fertilizer production method, comprise the following steps: that (1) get the carbonate minerals of the phosphate-containing ore of potassium oxide mass percent＞11% and calcium or/and the carbonate minerals of magnesium by mass ratio 1: 0.80-1.10, broken back is embathed also dry with dilute hydrochloric acid or the dilute sulphuric acid of PH=3-5, (2) adding activator reacted 2-4 hour at 1200-1450 ℃ with blast furnace melt, (3) quenching, (4) grinding is granulated; Activator is selected from the silicates of (A) aluminium, magnesium, sodium, (B) vitriol of calcium, magnesium, aluminium, sodium, ammonia, carbonate, (C) halogenide of calcium, magnesium, aluminium, sodium, A, B, C quality amount ratio are 5-15: 15-55: 5-40, activator level be whole furnace charge amounts＞0-10%.
Batching glass structure factor O
b/ y
b=2.70-2.95; The melting charge speed of cooling is 250-350 ℃/minute, is cooled to 800-850 ℃.
Particle size after cracking is particle diameter 20-80mm in the step (1), and the acidleach time of washing is 30-120 minute.
The principle of the invention is: potassium felspar sand is the aluminium silicate mineral of potassium, and potassium is the aluminum potassium silicate output, and plant can not directly utilize.If under 1200-1500 ℃ of temperature condition, add and join fixed auxiliary material, activator, each component is carried out thermal chemical reaction fast, and mineral structure destroys, and forms eutectic.When being cooled to zero pour, Si
4+, A1
3+Deng will be with [RO
4] the tetrahedron form forms random wire rope body rapidly, and K
+, Ca
2+, Mg
2+, Fe
2+Deng then being blocked, being dispersed in the glass network hole with the crystallite of potassium metaaluminate, calcium metaaluminate, Calucium Silicate powder respectively, can not go out by crystalline substance.These crystallites have solubility in citric acid, can be utilized by plant absorbing, become a kind of ideal potassic-magnesian fertilizer material.
The present invention has added the silicates of aluminium, magnesium, sodium in furnace charge, the activator that the halogenide of the vitriol of calcium, magnesium, aluminium, sodium, ammonia, carbonate and calcium, magnesium, aluminium, sodium is formed, this activator energy and SiO
2The low melting point system that constitutes, thus furnace charge temperature of reaction, effectively energy efficient reduced; Can increase the flowability of furnace charge, reduce viscosity, be convenient to production operation; Help the potassic-magnesian fertilizer molten mass to form, itself reacts completely furnace charge, helps improving transformation efficiency and quality product.The X-ray diffraction analysis of the potassic-magnesian fertilizer work in-process made from this method (vitreum) shows that it is a kind of vitreum completely, does not have the mineral crystal crystalline substance to go out substantially.The half-finished differential thermal analysis of fertilizer is shown that its devitrification temperature is 885 ℃, in actual production, should be according to the drying temperature of this temperature control material, it is to guarantee a qualified important parameter of potassic-magnesian fertilizer product.Observe under scanning electron microscope, can see that fertilizer vitreum section is uneven, the part is conchoidal, and surface compact is smooth; Both do not see densely covered crackle (this is the big feature of glass network), do not had too many cellular hole (this is the little feature of network) yet, had only several sparse little oblong pits.The Vitrea network size to fit of fertilizer is described.
The effective potassium content of potassic-magnesian fertilizer and the transformation efficiency that utilize the inventive method to produce are higher than any in the past similar potash fertilizer, the potassic-magnesian fertilizer of producing is used for staple food crop, cash crop can produce the benefit that significantly increases both production and value, also alternative import vitriolate of tartar is saved foreign exchange.
Nanyang summer Ipomoea batatas in 1994 is used potassic-magnesian fertilizer and plant ash (the effectively potassium weight content 7.75%) simultaneous test that the present invention produces and shows, the two contrast increases production 31.68% and 25.84% respectively.
Nineteen ninety-five in Nanyang, the field fertilizer efficiency of the wheat that carries out of Xinyang, Zhumadian, paddy rice, peanut shows: the potassic-magnesian fertilizer that utilizes the inventive method to produce can make wheat increase yield 6.14-16.97%; Make increasing production of rice 18.0-25.20%, and quality improves resistant to lodging, disease and insect resistance performance enhancing; Make peanut yield increasing 19.1-24.0%.The tobacco leaf field of carrying out in Nanyang in 1996 is used test and is shown, the tobacco leaf of using the potassic-magnesian fertilizer that the inventive method produces all is better than the potassium sulfate fertilizer of potassium amounts such as using at the aspects such as tobacco leaf visual appearance that growing way, blade size, the Huang and drying by the fire of falling.Use potassic-magnesian fertilizer that the inventive method produces and use and wait the potassium sulfate fertilizer output of potassium amount to improve 5.28-6.51%, first-class cigarette ratio raising 8.43-9.32%.
The potassic-magnesian fertilizer field that the present invention that 2000-2001 carries out in south China produces is used the result and is shown: compares with the Repone K of weight such as using, can make spring flower give birth to volume increase 40-50 kilogram/mu, and rust-proofing disease, leaf spot and fighting drought enhancing; Be used for sugarcane and can increase production 15-20%, sugar degree improves 1.0%; Be used for paddy rice, can increase production 20-25%, and quality improves resistant to lodging, disease and insect resistance performance enhancing; Be used for a mao leaf jujube, on average increase sugar amount 15-16%.
Description of drawings
The total looks electron-microscope scanning of the fertilizer vitreum section figure (amplifying 26 times) that Fig. 1 produces for the inventive method;
Fig. 2 goes up oblong pits electron-microscope scanning figure (amplifying 200 times) for the fertilizer vitreum section (mouth) that the inventive method is produced;
Fertilizer vitreum conchoidal fracture and oblong pits electron-microscope scanning figure (amplifying 200 times) that Fig. 3 produces for the inventive method;
Fig. 4 is the uneven state electron-microscope scanning figure (amplifying 200 times) of the fertilizer vitreum microcosmic section of the inventive method production;
Embodiment
Embodiment 1, get 1 part of potassium felspar sand (weight part, down with), 0.1 part in Wingdale, 0.78 part of rhombspar, be crushed to the about 50-80mm of particle diameter, pour pickling tub into, immersion is 1 hour in the diluted hydrochloric acid aqueous solution of PH=3.5, pulls out and dries.Add the activator (wherein containing 10% water glass, 50% calcium sulfate, 40% sodium-chlor) that accounts for furnace charge total amount 8%, went into the stove pyroreaction jointly about 2 hours.1350 ± 50 ℃ of furnace temperature of control, throat temperature 150-200 ℃, 400 ℃ of wind-warm syndrome, cold wind is pressed the 290-300mm mercury column, coke ratio 0.30-0.31, expect fast 7-8 ton/hour.Furnace charge is come out of the stove after the high-temperature fusion reaction, with 300 ℃ of/minute speed of cooling quenchings to 800 ℃ one-tenth vitreum work in-process, becomes the potassic-magnesian fertilizer product through grinding, system ball again.In the present embodiment, batching glass structure factor O
b/ y
b=2.72, surplus calcium alkalinity is 1.08.
Embodiment 2, get 1 part of potassium felspar sand, 0.95 part of rhombspar, be crushed to 40-60mm, pour in the diluted hydrochloric acid aqueous solution of PH=4.0 and soaked 1.5 hours, pull out and dry.Add the activator (wherein containing 5% Magnesium Silicate q-agent, 55% yellow soda ash, 40% calcium chloride) that accounts for furnace charge total amount 9%, went into the stove pyroreaction jointly about 2 hours.1400 ± 50 ℃ of furnace temperature of control, throat temperature 150-200 ℃, wind-warm syndrome 390-400 ℃, cold wind is pressed the 290-300mm mercury column, coke ratio 0.3, expect fast 7-8 ton/hour.Furnace charge is come out of the stove after high-temperature fusion reaction, becomes the vitreum work in-process with about 300 ℃ of/minute speed of cooling quenchings to 800 ℃, becomes the potassic-magnesian fertilizer product through grinding, system ball again.In the present embodiment, batching glass structure factor O
b/ y
b=2.76, surplus calcium alkalinity is 1.11.
Embodiment 3, get 1 part of potassium felspar sand, 1.02 parts of rhombspars, be crushed to 50-60mm, pour in the diluted hydrochloric acid aqueous solution of PH=4.5 and soaked 2 hours, pull out and dry.Add the activator (wherein containing 10% water glass, 50% yellow soda ash, 40% calcium chloride) that accounts for furnace charge total amount 7%, went into the stove pyroreaction jointly about 2 hours.1400 ± 50 ℃ of furnace temperature of control, throat temperature 150-200 ℃, 400 ℃ of wind-warm syndrome, cold wind is pressed the 300mm mercury column, coke ratio 0.32, expect fast 7-8 ton/hour.Furnace charge is come out of the stove after high-temperature fusion reaction, becomes the vitreum work in-process with about 300 ℃ of/minute speed of cooling quenchings to 850 ℃, becomes the potassic-magnesian fertilizer product through grinding, system ball again.In the present embodiment, batching glass structure factor O
b/ y
b=2.85, surplus calcium alkalinity is 1.15.
Claims (3)
1, a kind of potassic-magnesian fertilizer production method, it is characterized in that, comprise the following steps: that (1) get potassium felspar sand and Wingdale or/and rhombspar by mass ratio 1: 0.80-1.10, broken back is embathed also dry with dilute hydrochloric acid or the dilute sulphuric acid of PH=3-5, (2) adding activator reacted 2-4 hour at 1200-1450 ℃ with blast furnace melt, (3) quenching, (4) grinding is granulated; Activator is selected from (A) water glass, Magnesium Silicate q-agent, (B) calcium sulfate, yellow soda ash, and (C) sodium-chlor, calcium chloride, A, B, C quality amount ratio be 5-15: 15-55: 5-40, activator level is whole furnace charge amounts〉0-10%.
2, the method for claim 1 is characterized in that, the melting charge speed of cooling is 250-350 ℃/minute, is cooled to 800-850 ℃.
3, method as claimed in claim 1 or 2 is characterized in that, particle size after cracking is particle diameter 20-80mm in the step (1), and the acidleach time of washing is 30-120 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03126122 CN1245355C (en) | 2003-04-16 | 2003-04-16 | Production method of potassic magnesium fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03126122 CN1245355C (en) | 2003-04-16 | 2003-04-16 | Production method of potassic magnesium fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1537829A CN1537829A (en) | 2004-10-20 |
| CN1245355C true CN1245355C (en) | 2006-03-15 |
Family
ID=34321862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03126122 Expired - Fee Related CN1245355C (en) | 2003-04-16 | 2003-04-16 | Production method of potassic magnesium fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1245355C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627336B (en) * | 2012-05-02 | 2013-10-09 | 古舜起 | Boiler water treatment special agent prepared by using potash fertilizer production residua |
| CN115677426A (en) * | 2022-11-18 | 2023-02-03 | 方城县华裕肥料有限公司 | Special fertilizer for improving quality and increasing yield of wheat |
-
2003
- 2003-04-16 CN CN 03126122 patent/CN1245355C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1537829A (en) | 2004-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104498050B (en) | A kind of method for producing high activity soil conditioner co-producing sulfuric acid with ardealite and potassium feldspar | |
| CN100389096C (en) | Process for producing slow releasing silicon potassium compound fertilizer by potassium feldspar | |
| CN109052969B (en) | Method for producing microcrystalline glass by using calcium iron garnet type red mud | |
| CN101607834A (en) | Utilize potassium-bearing mineral, phosphogypsum and high sulphur coal to prepare the method for potash fertilizer and co-producing sulfuric acid | |
| CN102391021B (en) | Method for producing silicon-calcium-magnesium fertilizer by using ironmaking blast furnace water-quenching slag as raw materials | |
| CN101265136B (en) | Method for preparing solid-state calcium magnesium titanium iron sulfur nitrogen silicon composite fertilizer by using water to quench titanium-containing blast furnace slag | |
| CN1245355C (en) | Production method of potassic magnesium fertilizer | |
| CN114478077A (en) | Method for preparing calcium magnesium phosphate fertilizer by using activated calcium silicon | |
| CN108178503A (en) | A kind of preparation method of mineral wool | |
| CN105565350B (en) | A kind of method that utilization aluminous fly-ash produces aluminum oxide | |
| Shi et al. | Effect of different P2O5/SnF2 ratios on the structure and properties of phosphate glass | |
| CN104496190B (en) | A kind of thermal-state blast furnace slag mineral wool quenched material and preparation method thereof | |
| US4497675A (en) | Process for the manufacture of substrates from carbon-coated silicon dioxide fabric that can be used for large-surface silicon bodies | |
| CN106495111B (en) | A kind of slag-making fluxing agent for electric furnace process phosphorus production | |
| CN109265010A (en) | A kind of lithium porcelain stone tailing microcrystal glass and preparation method thereof | |
| WO2019227394A1 (en) | Silicon-based slow-release potassium fertilizer and preparation method therefor | |
| CN1259285C (en) | Production of potassium and magnesium fertilizer | |
| CN108516569A (en) | The method that lepidolite roasting prepares lithium sulfate solution | |
| TW201904917A (en) | Steelmaking slag for fertilizer raw material, method for producing steel slag for fertilizer raw material, method for producing fertilizer, and fertilizing method | |
| JP4023984B2 (en) | Method for producing amorphous inorganic composition | |
| WO2019004357A1 (en) | Steelmaking slag for use as fertilizer starting material, method for producing steelmaking slag for use as fertilizer starting material, method for producing fertilizer, and fertilization method | |
| CN107098783A (en) | The technique that fused silica crucible prepares siliceous fertilizer raw material after a kind of utilization polycrystalline silicon ingot casting | |
| CN106747679A (en) | A kind of method that utilization potassium feldspar prepares liquid potash fertilizer | |
| CN1195709C (en) | Silicon fertilizer and its producing method | |
| CA1046788A (en) | Slow-release fertilizers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060315 |