CN104604932A - Glyphosate potassium salt preparation and forming equipment thereof - Google Patents
Glyphosate potassium salt preparation and forming equipment thereof Download PDFInfo
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- CN104604932A CN104604932A CN201510070272.3A CN201510070272A CN104604932A CN 104604932 A CN104604932 A CN 104604932A CN 201510070272 A CN201510070272 A CN 201510070272A CN 104604932 A CN104604932 A CN 104604932A
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- glyphosate
- potassium salt
- glyphosate potassium
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- amine
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Abstract
The invention provides a glyphosate potassium salt preparation, which comprises the following compositions: solid glyphosate with moisture rate of 6%-12%, 40%-48% alkaline salt or alkaline solution containing potassium ions, 8%-12% of tallow amine surfactant, and 2-5% of cocamidopropyl synergist, and other filling agents. For the forming equipment, firstly a horizontal scraper centrifugal machine is started on or off intermittently, then the glyphosate potassium salt preparation is mixed and prepared in a spiral mixer with the heating temperature of 55-65DEG C. the mutual penetrating performance of all compositions can be increased according to the proportion of the used surfactant, synergist and raw materials, the cloud points of the preparation can be increased, the hydrophilicity is increased, and the adaptability of environment temperature can be increased; in addition, no emission of three wastes during production and forming do not exist.
Description
Technical field
The present invention relates to the formula of the glyphosate potassium of agricultural chemical field, technique and shaped device thereof.
Background technology
Glyphosate is conventional agricultural chemicals, can synthesizing glyphosate ammonium salt, glyphosate potassium, glyphosate isopropoxide, glyphosate ammonium sulfate etc. with other salt.
Application number be 998107301 invention provide and a kind ofly preferably comprise the dense water formulation of the glyphosate being greater than 400g/l represented with glyphosate, wherein comprise glyphosate potassium, alkyl glycoside surfactant and alkoxylated alkylamines surfactant, wherein alkylglycoside and the preferred total concentration of alkoxylated alkylamines are about 160 to 300g/l, the preferred proportion of alkylglycoside and alkoxylated alkylamines be every 1 part by weight of alkoxylated alkylamine to about 1 weight portion alkylglycoside to every 1 part by weight of alkoxylated alkylamine to about 5 weight portion alkylglycosides.The additive component of this invention is simpler to be answered, and function is single.
Application number be 2006101547459 invention provide a kind of method preparing glyphosate potassium solid wet product or its former medicine, by solid glyphosate acid is fully uniformly mixed with the water of suitable amount, the alkali added again containing potassium cationic reacts, control reaction temperature, cooling, crystallization, again drying obtain glyphosate potassium salt technical product.Present invention also offers the method that another kind prepares glyphosate potassium salt technical product, the logical water by solid glyphosate acid and suitable amount is fully uniformly mixed, then the alkali added containing potassium cationic reacts, and reactant mixture convection drying is obtained glyphosate potassium salt technical product.The preparation technology of this invention is too simple, does not have improvement result to the performance of goods.
Summary of the invention
Goal of the invention: the invention provides and a kind ofly can improve preparation activity of weeding, little, each the interpenetrating property of composition of side effect is good, cloud point is high glyphosate potassium salt pref.
Technical scheme:
Glyphosate potassium salt pref provided by the invention, have employed following component mixture and makes: solid phase glyphosate, containing the basic salt of potassium ion or alkali, aliphatic chain tallow amine surfactants, aliphatic chain coconut oleoyl amine class synergist, other filler; Wherein solid phase glyphosate be that 1:1.03-1.1(acid-base value is moderate containing the basic salt of potassium ion or the weight ratio of alkali, preferred 1:1.05 ~ 1.06 little to crops side effect); The weight that amine surfactants accounts for whole composition is 8%-12%, preferably 9.5%; The weight that amide-type synergist accounts for whole composition is 2%-5%, preferred fat acid amides, preferably 2.5%.
The moisture content of described solid phase glyphosate is 6%-12%, preferably 10%; Be 40%-48% containing the basic salt of potassium ion or alkaline concentration, preferably 45%.
Add in auxiliary agent, tallow amine and coconut oleoyl amine molecular structure have larger difference, bring more performance complements to component.
Under traditional handicraft, all will carry out the production of glyphosate formulation after the drying of glyphosate wet feed again.And moisture solid phase glyphosate used herein can reduce operating procedure, not only Simplified flowsheet, enhances productivity, and moderate moisture content can provide the good mouldability of said preparation and higher activity of weeding.In these goods, the ratio of glyphosate and potassium ion is moderate, while improving its herbicidal effect, returns crop alimentary effect, and can not the excessive crops root system used of calcination.
In the present invention, described aliphatic chain tallow amine is preferably the (existence of unsaturated bond of the unsaturated tallow amine of aliphatic chain, can react to each other with unsaturated coconut oleoyl amine hereafter, or react with some atomic group of the strand of glyphosate, form covalent bond or coordinate bond, thus form the mixture system of stable bond), it has alkalescence and cation amino, having of many surfaces is adsorbed by force and osmosis, the surface characteristic of compounding substances can be improved.Described aliphatic chain tallow amine be preferably hydrogenated-tallow group amine or two hydrogenated-tallow group amine (preferred two hydrogenated-tallow group amine further, it is soluble in organic solvent, is slightly soluble in water, heats 45 DEG C of-55 DEG C of solubilized; Softness, emulsibility, Corrosion Protection are good).
Described aliphatic chain coconut oleoyl amine class synergist is preferably unsaturated coconut oleoyl amine, Chinese another name: coconut acid diethanolamide, and the fatty coconut oleoyl amine of C12-C14 carbochain can the cloud point of obvious high sylvite preparation of the present invention.(more preferably fatty acid distribution of coconut oil MEA, its fusing point is 65 DEG C-75 DEG C, can be dissolved in organic solvent, 40 DEG C-45 DEG C time and solubilized; The resistance to hard water of composite rear product, has excellent thickening property and foam stabilization, good with the compatibility of surfactant, and has fabulous synergistic function).
A certain proportion of tallow amine auxiliary agent makes the cloud point of preparation between 65 ~ 75 DEG C after adding, after adding appropriate coconut oleoyl amine again, drug effect can be increased, viscosity and the cloud point of preparation can also be improved further, cloud point is made to be greater than 85 DEG C, be conducive to the stability improving preparation, improve the hold-up of preparation on target (crop weeds), strengthen the effect killing weeds.
Can also have in constituent of the present invention and account for solubilizer propane diols, ethylene glycol, the one in glycerine that whole Ingredients Weight is 1% ~ 3%, help the fusion of other component, and make said preparation rapid solution when diluting with water.
Second goal of the invention: a kind of high efficiency of above-mentioned glyphosate potassium salt pref, the uniform former of finished product material Nature comparison are provided.
Second technical scheme: the former of glyphosate potassium salt pref of the present invention first adopts horizontal type scraper centrifuger to dewater, and then adopts ribbon mixer mixture to form.The rotating speed of the horizontal type scraper centrifuger adopted is 700-900 rev/min, described solid phase glyphosate will be formed after glyphosate aqueous solution dehydration, described horizontal type scraper centrifuger is the solid phase glyphosate after clearance-type start and stop dehydration described in formation, (the start and stop cycle is 1-5 minute, material dewatering and moisture process is allowed to hocket, glyphosate mother solution is suitably separated with solid phase glyphosate, ensure that solid phase glyphosate keeps moderate humidity, keep similar crystal states of matter, the Performance comparision uniformity of whole system, neither too dry, too not moist again).
After making solid phase glyphosate intermediate, then by solid phase glyphosate, (glyphosate solid phase also can by adding corresponding additive, use after fluidized bed prilling), containing the basic salt of potassium ion or alkali, auxiliary agent (surfactant and synergist), filler, having heating jacket, (jacket heat-preservation adopts hot water thermal insulating, delivery pressure is 0.2MPa ~ 0.6Mpa) and heating-up temperature be 55-65 DEG C (ensure that several composition fully dissolves warm, again can not Yin Wendu be too high causes side reaction.Solvability during glyphosate 25 DEG C in water is 1.2%, be insoluble to common organic solvents, its sylvite is dissolved in water completely) ribbon mixer in mixture form (in mixture, solid phase glyphosate first adds 40%-60%, then potassium hydroxide aqueous solution 40-60% is dripped, add solid phase glyphosate again, then potassium hydroxide aqueous solution is dripped, finally add surfactant, synergist etc.), whole mixture process normal pressure carries out, stirring during mixing or rotary speed require 80 ~ 150 r/min, and the whole mixture reaction time is 0.5 ~ 2 hour.
The process island of above-mentioned horizontal type scraper centrifuger is made up of the feed pipe of suspending revolving drum, band feed distributor, wash mill, scraper, drawing mechanism and frame.In described drawing mechanism, glyphosate mother solution discharging opening caliber is 80-125mm, the discharging opening caliber of solid phase glyphosate is 400-500mm, and the difference of this discharging bore makes to maintain basically identical component ratio in horizontal type scraper centrifuger, and end properties is more stable.
Above-mentioned ribbon mixer, by cylindrical shell, stirring motor, (draw ratio of every root screw rod is at 6 ~ 4:1 for two screw rods, contact area between material is larger, mixing ratio is more abundant, hot-spot can not affect quality, production efficiency is higher again), the composition such as charge door, discharging opening, heating jacket insulating sections.
On the top of ribbon mixer, have solid-phase material (comprising solid phase glyphosate, some fillers at internal solid material) charge door, its bore is 500-600mm; Liquid phase material (comprising the liquid material such as potassium hydroxide aqueous solution, some auxiliary agents) charge door, its bore is 50-80mm.Have product mix (glyphosate potassium salt pref of the present invention) outlet in the bottom of ribbon mixer, its bore is the preferred 200-220mm of 150-250mm().Selecting respectively of these three kinds of caliber sizes, meets the allocation ratio of this products material and finished product and the requirement of input and output material speed, while production efficiency is improved, and the composition of finished product material and Nature comparison uniformity.
Beneficial effect:
The surfactant used in the present invention and synergist make the various proportionings of raw material to increase and interpenetrate performance between each composition, and the use of fatty coconut oleoyl amine can improve the cloud point of preparation, increase hydrophily, improve the adaptability to environmental temperature.
In the present invention, the moderate moisture content of solid phase glyphosate can provide activity of weeding that said preparation is higher and lower mixture difficulty; In goods, the ratio of glyphosate and potassium ion is moderate, while improving its herbicidal effect, to crop alimentary effect, and can not the excessive crop root used of calcination.
The speed of the equipment input and output material that the present invention adopts designs respectively to be determined and controls respectively, while production efficiency is improved, and the composition of finished product material and Nature comparison uniformity.
The products material adopted and the allocation ratio of finished product and the input and output material bore of equipment reasonable in design and control respectively, while making production efficiency raising, consumption and the end properties of each composition of finished product material compare uniformity.
Almost do not have the three wastes to produce in type of the present invention, finished product almost has no side effect to crops, meets the many technical requirement of Law on Environmental Protection to green production, green product.
Accompanying drawing explanation
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is the structural representation of a kind of ribbon mixer of the present invention;
In figure, 1-cylindrical shell, 2-screw rod, 3-solid-phase material charge door, 4-stirring motor, 5-liquid phase material charge door, 6-heating jacket 7-glyphosate potassium discharging opening.
Embodiment
Adopt a kind of glyphosate potassium salt pref of the technique of Fig. 1 and the device fabrication of Fig. 2, in its raw material, there is the solid phase glyphosate of moisture content 9%-10%, concentration is 45%-49% containing the basic salt of potassium ion or alkali, and both weight ratios are 1:1.05-1.1, separately containing accounting for gross weight than the tallow amine surfactant being 9%-10%, the coconut oleoyl amine synergist accounting for gross weight 3%-4%.
In production, first adopt horizontal type scraper centrifuger to be dewatered by glyphosate mother solution, the rotating speed of horizontal type scraper centrifuger is about 800-850 rev/min, clearance-type start and stop, and the start and stop cycle is about 2-3 minute; Liquid phase discharging opening caliber is about 100mm, and solid phase glyphosate discharging opening caliber is about 450mm.
Then adopt ribbon mixer batch mixing, described ribbon mixer, is made up of cylindrical shell 1, stirring motor 4, two screw rods 2, charge door 3 and 5, glyphosate potassium discharging opening 7, heating jacket 6 etc.By described solid phase glyphosate and potassium hydroxide solution, surfactant, synergist, filler, there is hot water heating chuck 6 and heating-up temperature is mixture in the ribbon mixer of about 60 DEG C.In ribbon mixer, the draw ratio of a screw rod 2 is 5-6:1, and the draw ratio of another root screw rod 2 is 4-5:1, and the bore of solid-phase material charge door 3 is about 550mm, the bore of liquid phase material charge door 5 is about 60mm, and the bore of glyphosate potassium discharging opening 7 is about 200mm.
The production efficiency of this former is higher, and gained end properties compares uniformity, has good herbicidal performance, trophic function and the conformability higher to environmental temperature.
Claims (10)
1. a glyphosate potassium salt pref, it is characterized in that: have employed following component mixture and make: the basic salt containing potassium ion or alkali, aliphatic chain tallow amine surfactants, aliphatic chain coconut oleoyl amine class synergist, other filler that the solid phase glyphosate that moisture content is 6%-12%, concentration are 40%-48%, wherein solid phase glyphosate be 1:1.03-1.1 containing the basic salt of potassium ion or the weight ratio of alkali, the weight that aliphatic chain tallow amine surfactants accounts for whole composition is 8%-12%, and the weight that aliphatic chain coconut oleoyl amine class synergist accounts for whole composition is 2%-5%.
2. glyphosate potassium salt pref as claimed in claim 1, is characterized in that: described aliphatic chain tallow amine is the unsaturated tallow amine of aliphatic chain.
3. glyphosate potassium salt pref as claimed in claim 1 or 2, is characterized in that: described aliphatic chain tallow amine is hydrogenated-tallow group amine or two hydrogenated-tallow group amine.
4. glyphosate potassium salt pref as claimed in claim 1, is characterized in that: described aliphatic chain coconut oleoyl amine class synergist is unsaturated coconut oleoyl amine.
5. the glyphosate potassium salt pref as described in claim 1 or 4, is characterized in that: described aliphatic chain coconut oleoyl amine is fatty acid distribution of coconut oil MEA.
6. glyphosate potassium salt pref as claimed in claim 1, is characterized in that: account for solubilizer propane diols, ethylene glycol, one in glycerine that whole Ingredients Weight is 1% ~ 3% in described constituent in addition.
7. a former for glyphosate potassium salt pref according to claim 1, first adopt horizontal type scraper centrifuger dehydration, then adopt ribbon mixer mixture, the ribbon mixer adopted, has cylindrical shell (1), stirring motor (4), charge door (3; 5), glyphosate potassium discharging opening (7) these parts, it is characterized in that: the rotating speed of the horizontal type scraper centrifuger of employing is 700-900 rev/min, described solid phase glyphosate will be formed after glyphosate aqueous solution dehydration; The ribbon mixer adopted also has heating jacket (6), and its heating-up temperature is 55-65 DEG C.
8. the former of glyphosate potassium salt pref as claimed in claim 7, is characterized in that: described horizontal type scraper centrifuger is clearance-type start and stop dehydrations, and the start and stop cycle is 1-5 minute.
9. the former of glyphosate potassium salt pref as claimed in claim 7, it is characterized in that: the bore of the solid-phase material charge door (3) on the top of described ribbon mixer is 500-600mm, the bore of liquid phase material charge door (5) is 50-80mm; Described glyphosate potassium discharging opening (7) is in the bottom of ribbon mixer, and its bore is 150-250mm.
10. the former of the glyphosate potassium salt pref as described in claim 7 or 9, is characterized in that: the draw ratio of the screw rod (2) used in described ribbon mixer is at 6 ~ 4:1.
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| CN201510070272.3A CN104604932B (en) | 2015-02-11 | 2015-02-11 | Glyphosate potassium salt pref and former thereof |
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| CN201510070272.3A CN104604932B (en) | 2015-02-11 | 2015-02-11 | Glyphosate potassium salt pref and former thereof |
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| CN104604932B CN104604932B (en) | 2016-08-24 |
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Citations (5)
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|---|---|---|---|---|
| US6365551B1 (en) * | 1990-08-09 | 2002-04-02 | Monsanto Technology Llc | Highly concentrated glyphosate herbicidal compositions |
| CN1376033A (en) * | 1999-09-09 | 2002-10-23 | 孟山都技术有限责任公司 | Enhanced method of killing weeds with glyphosate herbicide |
| CN101186622A (en) * | 2006-11-17 | 2008-05-28 | 浙江新安化工集团股份有限公司 | Method for preparing solid glyphosate potassium salt |
| CN101743995A (en) * | 2009-12-23 | 2010-06-23 | 深圳诺普信农化股份有限公司 | Efficiency glyphosate herbicidal composition |
| CN101822270A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Effectiveness-enhanced glyphosate weeding combination |
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2015
- 2015-02-11 CN CN201510070272.3A patent/CN104604932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6365551B1 (en) * | 1990-08-09 | 2002-04-02 | Monsanto Technology Llc | Highly concentrated glyphosate herbicidal compositions |
| CN1376033A (en) * | 1999-09-09 | 2002-10-23 | 孟山都技术有限责任公司 | Enhanced method of killing weeds with glyphosate herbicide |
| CN101186622A (en) * | 2006-11-17 | 2008-05-28 | 浙江新安化工集团股份有限公司 | Method for preparing solid glyphosate potassium salt |
| CN101743995A (en) * | 2009-12-23 | 2010-06-23 | 深圳诺普信农化股份有限公司 | Efficiency glyphosate herbicidal composition |
| CN101822270A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Effectiveness-enhanced glyphosate weeding combination |
Non-Patent Citations (1)
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| 华乃震: "草甘膦活性和助剂", 《农药》 * |
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Inventor after: Zhang Haibin Inventor after: Xue Jian Inventor after: Du Hui Inventor after: Jin Xiaoli Inventor after: Xu Xin Inventor after: Xu Yingrong Inventor before: Xue Jian Inventor before: Jin Xiaoli Inventor before: Du Hui Inventor before: Sun Yafeng Inventor before: Xu Xin Inventor before: Xu Yingrong |
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