CN102718601B - Large circular potassium chloride granule granulating auxiliary agent and preparation method - Google Patents
Large circular potassium chloride granule granulating auxiliary agent and preparation method Download PDFInfo
- Publication number
- CN102718601B CN102718601B CN201210236475.1A CN201210236475A CN102718601B CN 102718601 B CN102718601 B CN 102718601B CN 201210236475 A CN201210236475 A CN 201210236475A CN 102718601 B CN102718601 B CN 102718601B
- Authority
- CN
- China
- Prior art keywords
- potassium chloride
- preparation
- repone
- granulating
- auxiliary agent
- 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
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title claims abstract description 84
- 239000001103 potassium chloride Substances 0.000 title claims abstract description 26
- 235000011164 potassium chloride Nutrition 0.000 title claims abstract description 26
- 239000008187 granular material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000012752 auxiliary agent Substances 0.000 title abstract 5
- 238000005469 granulation Methods 0.000 claims abstract description 37
- 230000003179 granulation Effects 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000010298 pulverizing process Methods 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000000080 wetting agent Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 36
- 229920002472 Starch Polymers 0.000 claims description 9
- 235000019698 starch Nutrition 0.000 claims description 9
- 239000008107 starch Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 5
- 239000004021 humic acid Substances 0.000 claims description 5
- 229960003511 macrogol Drugs 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 159000000000 sodium salts Chemical group 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012466 permeate Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 235000009328 Amaranthus caudatus Nutrition 0.000 claims description 3
- 240000001592 Amaranthus caudatus Species 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 235000012735 amaranth Nutrition 0.000 claims description 3
- 239000004178 amaranth Substances 0.000 claims description 3
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 241000220317 Rosa Species 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims 1
- 238000006062 fragmentation reaction Methods 0.000 claims 1
- 239000003337 fertilizer Substances 0.000 abstract description 52
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052700 potassium Inorganic materials 0.000 abstract description 7
- 239000011591 potassium Substances 0.000 abstract description 7
- 229920000881 Modified starch Polymers 0.000 abstract 1
- 239000004368 Modified starch Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 235000019426 modified starch Nutrition 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 17
- 229940072033 potash Drugs 0.000 description 17
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 17
- 235000015320 potassium carbonate Nutrition 0.000 description 17
- 238000005188 flotation Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 1
- 235000012730 carminic acid Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention relates to a large circular potassium chloride granule granulating auxiliary agent and a preparation method. The large circular potassium chloride granule granulating auxiliary agent comprises the following components in mass percentage: 45-60% of modified starch, 5-10% of humate, 3-5% of penetrant, 10-20% of wetting agent and 10-20% of colored substance; the sum of the components is 100%; and the components are uniformly mixed to prepare the large circular potassium chloride granule granulating auxiliary agent. The preparation method comprises the following steps: (1) pulverizing powdery potassium chloride into 20-50 meshes; (2) putting pulverized potassium chloride powder into a disc granulator or a drum granulator, and granulating; (3) continuously spraying a large circular potassium chloride granule granulating auxiliary agent solution with the mass concentration of 20-40% on a granulating material by using an atomizing nozzle; and (4) sending granulated potassium chloride granules into a drying system, drying, sieving and packaging. Compared with the conventional granular potassium fertilizer producing process, the preparation method has the advantages that the production process is simple; the preparation method is applicable to a variety of granulating ways, such as the drum granulator or the disc granulator; prepared fertilizer granules have high strength and achieve the mean crushing pressure of 20-40N; and the preparation method has higher yield than extrusion granulation.
Description
Technical field
The present invention relates to a kind of method that uses great circle granule potassium chloride granulation aid to prepare Repone K.
Background technology
Repone K, as the high nutrient simple substance of one potash fertilizer, is the indispensable fertilizer varieties of farm crop.Over nearly 20 years, the production development such as granular urea, phosphorus ammonium, composite fertilizer and granular potash fertilizer is rapid in the world.Fertiliser granulates is one of development trend of current chemical fertilizer.
1. granular potash fertilizer is the development trend of current chemical fertilizer, and it has the following advantages:
(1) performance is good, and fertilising is convenient, compared with powdered fertilizer, when granulated fertilizer handling, does not play dirt, and long-term storage is not lumpd, and good fluidity easily scatters when fertilising, and can realize motor-driven fertilising, also can play slow releasing function simultaneously, improves the utilization ratio of fertilizer.
(2) can be used as simple substance granular potash fertilizer, the fertilizer direct blending close with other different varieties particle footpath, makes mixed fertilizer (BB fertilizer) cheaply, has the fertilizer efficiency same with composite fertilizer.The fertile production technique of BB is simple, three-waste free discharge, and flexibly, product has adaptability widely to formula.Mixed fertilizer develops comparative maturity at north America region at present, and approximately 60% fertilizer is all used with mixed fertilizer.
But the preparation of mixed fertilizer needs feedstock particle size basically identical, otherwise product there will be segregation phenomenon in storage and transport process, causes nutrient inequality.
2. granular potash fertilizer has the larger market requirement, and the U.S. is the more advanced country of chemical fertilizers production in the world, and U.S.'s granular potash fertilizer output accounts for the 40%-45% of potash fertilizer ultimate production at present.
3. the present situation of China's granular potash fertilizer, China's potassium resource lacks, potash fertilizer is mainly by import, due to the method for preparing granular potash fertilizer not had, China's import granular potash fertilizer relies on import completely, mainly as the raw material of mixed fertilizer, but dependence on import granular potash fertilizer can not meet the growth requirement of mixed fertilizer far away.So being exactly mainly base particle fertilizer, the reason of China's mixed fertilizer slower development lacks.Although China's granulated phosphate fertilizer and granular urea have had certain industrial scale, it is still blank that China's granular potash fertilizer is produced, and affects the development of China's mixed fertilizer.
At present domestic production granular potash fertilizer is mainly to adopt extruder grain, and Repone K shape prepared by this kind of complete processing is mostly sheet, and granule strength is poor, cannot meet the requirement of particle simple substance Potassium Fertilizer and preparation BB fertilizer.In the time that Repone K is flotation Repone K, granulation situation will worsen more, because the residual layer of surface promoting agent of flotation potassium surface meeting, make Repone K surface become hydrophobic, therefore in the situation that there is no effective granulation aid, be difficult to participate in granulation, often need repeatedly returning charge.
For above-mentioned variety of problems, a kind of large round shaped grain Repone K preparation method of development becomes the task of top priority.
Summary of the invention
The object of the invention is to overcome the granular potash fertilizer shape difference that existing method is produced, intensity difference, cannot meet the deficiency such as requirement of particle simple substance potash fertilizer and preparation BB fertilizer, a kind of method that uses great circle granule potassium chloride granulation aid to prepare Repone K is provided, this method production technique is simple, facility investment is little, only need to utilize existing granulating disc or rotary drum granulator, add a small amount of granulation aid, this granulation aid consumption is little, only need 3-5 kg/tonne of fertilizer and just can produce mellow and full Repone K fertilizer particle, can effectively solve the problem of flotation potassium surface hydrophobicity, more easily produce large round shaped grain Repone K, it is high that granule potassium chloride intensity is produced in preparation, fertilizer is being produced, transportation, deposit in process, be difficult for efflorescence, prevent to a certain extent fertilizer agglomeration.But also can configure as required a certain amount of pigment or pigment, and produce large bright-coloured raw material Repone K of shades of colour, meet fertile bright-colored this feature of BB.Meet the requirement of particle simple substance Potassium Fertilizer and preparation BB fertilizer.
For achieving the above object, technical scheme of the present invention is:
A kind of great circle granule potassium chloride granulation aid, each component by mass percentage, it is characterized in that: treated starch 45-60%, humate 5-10%, permeate agent 3-5%, wetting agent 10-20%, coloring matter 10-20%, each component sum is 100%, and above-mentioned each raw material is mixed and makes granulation aid.
Described treated starch is organic phosphate starch.
Described humate is Sodium salts humic acids.
Described permeate agent is fatty alcohol-polyoxyethylene ether JFC.
Described wetting agent is Macrogol 200.
Described coloring matter is natural pigment or pigment; Described coloring matter is one or more in iron oxide yellow, apple green, red iron oxide, titanium ultramarine, famille rose, amaranth.
Great circle granule potassium chloride granulation aid is prepared the method for Repone K, carries out according to the following steps:
(1) powdery Repone K is crushed to 20-50 orders;
(2) the Repone K powder of pulverizing is put in granulating disc or rotary drum granulator, started granulating equipment;
(3) in the above-mentioned granulation aid preparing, add a certain amount of water, be mixed with the granulation aid solution of 20%-40% mass concentration, use atomizing nozzle continuous spraying on granulation material.
(4) potassium chloride particle of making is sent into drying system, be dried.
(5) dried Repone K is entered to screening system, sieve.
(6) qualified particle is packed, defective particle (oversized particles or excessively small-particle) is broken enters granulating system as returning charge.
The advantage of the more existing granular potash fertilizer production art of the present invention: production technique is simple; Be applicable to multiple granulation mode, as rotary drum granulator or granulating disc; The fertiliser granulates intensity of producing is high, average anti-crushing pressure 20-40N; Output is large compared with extruder grain output.
Embodiment
Three embodiment of a kind of great circle granule potassium chloride of the present invention preparation method are below provided
Embodiment 1
Adopt flotation potassium to prepare red great circle granule potassium chloride.
By organic phosphate starch 45%, Sodium salts humic acids 10%, Macrogol 200 be 20%, JFC5%, red iron oxide 20%, mix and make granulation aid.
Adopt granulating disc, granulation aid consumption: 4 kilograms
The mass concentration of granulation aid preparation: 20%
Powdery Repone K is crushed to 20-50 orders;
The Repone K powder of pulverizing is put in granulating disc, started granulating equipment;
Be 20% granulation aid solution in the above-mentioned mass concentration preparing, use atomizing nozzle continuous spraying on granulation material;
The potassium chloride particle of making is sent into drying system, be dried;
Dried Repone K is entered to screening system, sieve;
The qualified particle of particle diameter 2-5mm is packed, and defective particle (oversized particles or excessively small-particle) is broken enters granulating system as returning charge.
The anti-crushing pressure that records qualified particle is 25N.
Embodiment 2
The Repone K that adopts crystallization process to produce is prepared blue great circle granule potassium chloride
By organic phosphate starch 60%, Sodium salts humic acids 5%, Macrogol 200 be 15%, JFC3%, titanium ultramarine 17%, mix and make granulation aid.
Adopt rotary drum granulator, granulation aid consumption: 3 kilograms
The mass concentration of granulation aid preparation: 30%
Powdery Repone K is crushed to 20-50 orders;
The Repone K powder of pulverizing is put in rotary drum granulator, started granulating equipment;
Above-mentioned prepare mass concentration be 30% granulation aid solution, use atomizing nozzle continuous spraying on granulation material;
The potassium chloride particle of making is sent into drying system, be dried;
Dried Repone K is entered to screening system, sieve;
Qualified particle diameter 2-5mm particle is packed, and defective particle (oversized particles or excessively small-particle) is broken enters granulating system as returning charge.
The anti-crushing pressure that records qualified particle is 30N.
Embodiment 3
The Repone K that adopts crystallization process to produce is prepared red great circle granule potassium chloride
By organic phosphate starch 58%, Sodium salts humic acids 8%, Macrogol 200 be 20%, JFC4%, carmine 5%, amaranth 5%, mix and make granulation aid.
Adopt rotary drum granulator, granulation aid consumption: 5 kilograms
The mass concentration of granulation aid preparation: 40%
Powdery Repone K is crushed to 20-50 orders;
The Repone K powder of pulverizing is put in rotary drum granulator, started granulating equipment;
Above-mentioned prepare mass concentration be 40% granulation aid solution, use atomizing nozzle continuous spraying on granulation material;
The potassium chloride particle of making is sent into drying system, be dried;
Dried Repone K is entered to screening system, sieve;
Qualified particle diameter 2-5mm particle is packed, and defective particle (oversized particles or excessively small-particle) is broken enters granulating system as returning charge.
The anti-crushing pressure that records qualified particle is 40N.
Claims (1)
1. use great circle granule potassium chloride granulation aid to prepare the method for Repone K, it is characterized in that:
Described great circle granule potassium chloride granulation aid, each component by mass percentage, treated starch 45-60%, humate 5-10%, permeate agent 3-5%, wetting agent 10-20%, coloring matter 10-20%, each component sum is 100%, and above-mentioned each raw material is mixed and makes granulation aid; Described treated starch is organic phosphate starch; Described humate is Sodium salts humic acids; Described permeate agent is fatty alcohol-polyoxyethylene ether; Described wetting agent is Macrogol 200; Described coloring matter is one or more in iron oxide yellow, apple green, red iron oxide, titanium ultramarine, famille rose, amaranth;
The method that described great circle granule potassium chloride granulation aid is prepared Repone K is carried out according to the following steps:
(1) powdery Repone K is crushed to 20-50 orders;
(2) the Repone K powder of pulverizing is put in granulating disc or rotary drum granulator, started granulating equipment;
(3) in the above-mentioned granulation aid preparing, add a certain amount of water, be mixed with mass concentration and be 20%-40% solution, use atomizing nozzle continuous spraying on granulation material;
(4) potassium chloride particle of making is sent into drying system, be dried;
(5) dried Repone K is entered to screening system, sieve; Qualified particle is packed, and defective particle fragmentation enters granulating system as returning charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236475.1A CN102718601B (en) | 2012-07-10 | 2012-07-10 | Large circular potassium chloride granule granulating auxiliary agent and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236475.1A CN102718601B (en) | 2012-07-10 | 2012-07-10 | Large circular potassium chloride granule granulating auxiliary agent and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102718601A CN102718601A (en) | 2012-10-10 |
| CN102718601B true CN102718601B (en) | 2014-06-18 |
Family
ID=46944508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210236475.1A Expired - Fee Related CN102718601B (en) | 2012-07-10 | 2012-07-10 | Large circular potassium chloride granule granulating auxiliary agent and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102718601B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553800B (en) * | 2013-10-31 | 2014-12-31 | 湖北富邦科技股份有限公司 | Production method of high-concentration potassium chloride pellet |
| CN103936503B (en) * | 2014-04-08 | 2016-06-08 | 湖北联瑞新材料有限公司 | Granulation modifying agent and its preparation method and the application in fertilizer |
| CN104108997A (en) * | 2014-06-27 | 2014-10-22 | 何芳 | Synergist for organic-inorganic compound fertilizer |
| CN104355778B (en) * | 2014-09-26 | 2017-02-15 | 成都新柯力化工科技有限公司 | Potassium fertilizer granules and granulating method thereof |
| CN110218116A (en) * | 2019-06-18 | 2019-09-10 | 北京尧之龙科技发展有限公司 | A kind of granular compound fertilizer adhesive for granulating and preparation method thereof |
| CN113214022A (en) * | 2021-04-23 | 2021-08-06 | 湖北富邦科技股份有限公司 | Instant round-particle potash fertilizer granulation auxiliary agent and use method thereof |
| CN113105292A (en) * | 2021-04-23 | 2021-07-13 | 湖北富邦科技股份有限公司 | Production method of synergistic potash fertilizer capable of improving yield |
| CN115043686A (en) * | 2022-06-06 | 2022-09-13 | 青海国润农业科技有限公司 | Regular round granular potash fertilizer granulation auxiliary agent and preparation method thereof |
| CN115634623A (en) * | 2022-10-24 | 2023-01-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for adding potassium chloride in titanium white production by chlorination process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769248A (en) * | 2004-11-05 | 2006-05-10 | 上海化工研究院 | Granule potassium chloride production method |
| CN101423443A (en) * | 2008-11-21 | 2009-05-06 | 深圳市朗钛生物科技有限公司 | Water soluble effervescence composition and method of making the same |
| WO2009087426A1 (en) * | 2008-01-11 | 2009-07-16 | Novatech D.O.O. | Formulation based on microni zed natural calcite mineral as a plant booster and mineral fertilizer |
| CN102320879A (en) * | 2011-09-06 | 2012-01-18 | 李子先 | High nutrient compound selenium fertilizer and preparation method thereof |
| CN102477171A (en) * | 2010-11-26 | 2012-05-30 | 北京市农林科学院 | Modified starch binder used for granulation of organic fertilizer and preparation method thereof |
-
2012
- 2012-07-10 CN CN201210236475.1A patent/CN102718601B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769248A (en) * | 2004-11-05 | 2006-05-10 | 上海化工研究院 | Granule potassium chloride production method |
| WO2009087426A1 (en) * | 2008-01-11 | 2009-07-16 | Novatech D.O.O. | Formulation based on microni zed natural calcite mineral as a plant booster and mineral fertilizer |
| CN101423443A (en) * | 2008-11-21 | 2009-05-06 | 深圳市朗钛生物科技有限公司 | Water soluble effervescence composition and method of making the same |
| CN102477171A (en) * | 2010-11-26 | 2012-05-30 | 北京市农林科学院 | Modified starch binder used for granulation of organic fertilizer and preparation method thereof |
| CN102320879A (en) * | 2011-09-06 | 2012-01-18 | 李子先 | High nutrient compound selenium fertilizer and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102718601A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102718601B (en) | Large circular potassium chloride granule granulating auxiliary agent and preparation method | |
| CN101570455B (en) | Method for preparing particle ammonium sulfate product by organic-inorganic binder | |
| CN101575222B (en) | Method for producing ammonium sulphate grain products by using inorganic caking agent | |
| CN103204735B (en) | Active polypeptide water-soluble fertilizer and preparation method thereof | |
| CN108033862A (en) | A kind of preparation method of novel high-strength circular granular potassium sulfate | |
| CN106278609A (en) | A kind of low concentration Multi-functional circular granular potash fertilizer and preparation method | |
| CN101638344A (en) | Fertilizer special for maintaining lawns and preparation method thereof | |
| CN103333033A (en) | Preparation method of low formaldehyde resin-gypsum-bentonite-based controlled release fertilizer | |
| CN103058761B (en) | Slow release compound fertilizer applicable to plantation of wheat | |
| CN106365778A (en) | High-strength compound fertilizer and preparation method of same | |
| CN103058751B (en) | Preparation method for special slow-release long-acting compound fertilizer for corn | |
| CN102320867A (en) | Sulphate-potassium magnesium fertilizer and preparation method thereof | |
| CN104355772A (en) | Preparation method and preparation device of compound fertilizer | |
| CN102690144B (en) | Method for producing granular potassium sulfate | |
| CN103058762B (en) | Slow-release compound fertilizer suitable for fruit tree planting | |
| CN103214303A (en) | Production method of large particle humic acid-potassium chloride fertilizer | |
| CN105884524A (en) | High-tower granulated urinary-chlorine-based compound fertilizer and preparation method thereof | |
| CN104446990A (en) | High-efficiency slow-release type granular magnesium sulfate and preparation method thereof | |
| CN103058754B (en) | Slow-release compound fertilizer applicable to plantation of corn | |
| CN102464509A (en) | Preparation method of high-concentration round granular potash fertilizer | |
| CN103664356A (en) | Pellet potash fertilizer pelletizing technology | |
| CN105175148A (en) | Organic slow-release fertilizer for apples and preparation method of fertilizer | |
| CN104449747A (en) | Silicon-magnesium powder and soil conditioner containing same as well as preparation technology and application of soil conditioner | |
| CN106278607A (en) | A kind of preparation method containing zinc slow release rounded grain potash fertilizer | |
| CN102898231B (en) | Big rounded-grain nitrogen potassium chlorine based binary compound fertilizer and preparation method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 |