CN101874505A - Preparation method of glyphosate aqueous solution - Google Patents
Preparation method of glyphosate aqueous solution Download PDFInfo
- Publication number
- CN101874505A CN101874505A CN2009100501803A CN200910050180A CN101874505A CN 101874505 A CN101874505 A CN 101874505A CN 2009100501803 A CN2009100501803 A CN 2009100501803A CN 200910050180 A CN200910050180 A CN 200910050180A CN 101874505 A CN101874505 A CN 101874505A
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- China
- Prior art keywords
- isopropylamine
- solution
- gyphosate
- described step
- glyphosate
- Prior art date
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Abstract
The invention relates to a preparation method of a glyphosate aqueous solution, which comprises the following steps: (1) putting glyphosate raw medicines and deionized water into a preparation kettle, and stirring for 20-40min to obtain a mixed solution; (2) opening jacket circulating water, controlling the temperature of the kettle to be 30-40 DEG C, and dropwise adding ammonia water into the mixed solution for 0.5-2h; (3) after the ammonia water is dropwise added completely, controlling the temperature of the kettle to be 30-40 DEG C, continuously dropwise adding isopropylamine for 1-3h, and then, preserving the temperature and stirring for 1-2h to obtain a reaction solution; and (4) after heat preservation, adding emulsifiers into the reaction solution, controlling the temperature of the kettle to be 30-40 DEG C, stirring for 0.5-2h, and then, cooling and filtering to obtain the glyphosate aqueous solution. Compared with the prior art, the ammonia water is used by the invention for replacing partial isopropylamine, thereby reducing the dosage of the isopropylamine, reducing the pollution, lowering the cost and improving the market competitiveness.
Description
Technical field
The present invention relates to a kind of concocting method, especially relate to a kind of concocting method of gyphosate solution.
Background technology
Glyphosate is a kind of interior extremely strong wide spectrum steriland herbicide of conductive performance of inhaling.Generally the form with glyphosate salt exists in the aqua, is widely used in orchard, forest land, fallow land and farmland weed and prevents and kill off.At present, 41% gyphosate solution generally is to be allocated after with the isopropylamine salify by the former powder of glyphosate to form, and consumption is extensive.Because Market competition needs to reduce aqua and becomes the original market competitiveness that improves now.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of for the defective that overcomes above-mentioned prior art existence to reduce cost the concocting method of easy to operate gyphosate solution.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of concocting method of gyphosate solution is characterized in that, this method is to come the gyphosate solution of instead of part isopropylamine allotment 41% with ammoniacal liquor, specifically may further comprise the steps:
(1) glyphosate technicals and deionized water are placed compounding kettle, stir 20-40min, obtain mixed solution;
(2) open chuck cycle water, the still temperature of control compounding kettle is 30-40 ℃, and to mixed solution and dripping ammoniacal liquor, the dropping time is 0.5-2h;
(3) after ammoniacal liquor dripped and finishes, control still temperature was 30-40 ℃, continues to drip isopropylamine, and the dropping time is 1-3h, and insulated and stirred 1-2h obtains reaction solution again;
(4) after insulation finishes, add emulsifier in reaction solution, control still temperature is 30-40 ℃, stirs 0.5-2h, and cooling is filtered and promptly got gyphosate solution again.
The weight ratio of glyphosate technicals and deionized water is (1-1.5) in the described step (1): (1.35-1.95).
The addition of ammoniacal liquor and the weight ratio of glyphosate technicals are (0.09-0.15) in the described step (2): (1-1.5).
The addition of isopropylamine and the weight ratio of glyphosate technicals are (0.28-0.45) in the described step (3): (1-1.5).
The addition of the emulsifier in the described step (4) and the weight ratio of glyphosate technicals are (0.32-0.54): (1-1.5).
Emulsifier in the described step (4) comprises polyoxyethylene carboxylate, polyoxyethylene amine, Span-20 or Span-80.
Compared with prior art, the present invention utilizes the aqueous ammonia to replace part isopropylamine, thereby has reduced the consumption of isopropylamine, has reduced pollution, has reduced cost, has improved the market competitiveness.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
Allocate the method for 41% gyphosate solution with the aqueous ammonia to replace part isopropylamine:
(1) glyphosate technicals 1000kg and deionized water 1350kg are placed compounding kettle, stir 20min, obtain mixed solution;
(2) open chuck cycle water, the still temperature of control compounding kettle is 30 ℃, and to mixed solution and dripping ammoniacal liquor 90kg, the dropping time is 0.5h;
(3) after ammoniacal liquor dripped and finishes, control still temperature was 30 ℃, continues to drip isopropylamine 280kg, and the dropping time is 1h, and insulated and stirred 1h obtains reaction solution again;
(4) after insulation finishes, add polyoxyethylene carboxylate 320kg in reaction solution, control still temperature is 30 ℃, stirs 0.5h, and to filter and promptly get concentration expressed in percentage by weight be 41% gyphosate solution in cooling again.
Embodiment 2
Allocate the method for 41% gyphosate solution with the aqueous ammonia to replace part isopropylamine:
(1) glyphosate technicals 1200kg and deionized water 1400kg are placed compounding kettle, stir 30min, obtain mixed solution;
(2) open chuck cycle water, the still temperature of control compounding kettle is 35 ℃, and to mixed solution and dripping ammoniacal liquor 100kg, the dropping time is 1h;
(3) after ammoniacal liquor dripped and finishes, control still temperature was 38 ℃, continues to drip isopropylamine 315kg, and the dropping time is 2h, and insulated and stirred 2h obtains reaction solution again;
(4) after insulation finishes, add 510g Span-20 in reaction solution, control still temperature is 35 ℃, stirs 1.5h, and to filter and promptly get concentration expressed in percentage by weight be 41% gyphosate solution in cooling again.
Embodiment 3
Allocate the method for 41% gyphosate solution with the aqueous ammonia to replace part isopropylamine:
(1) glyphosate technicals 1500kg and deionized water 1950kg are placed compounding kettle, stir 40min, obtain mixed solution;
(2) open chuck cycle water, the still temperature of control compounding kettle is 40 ℃, and to mixed solution and dripping ammoniacal liquor 150kg, the dropping time is 2h;
(3) after ammoniacal liquor dripped and finishes, control still temperature was 40 ℃, continues to drip isopropylamine 450kg, and the dropping time is 3h, and insulated and stirred 2h obtains reaction solution again;
(4) after insulation finishes, add 540g Span-80 in reaction solution, control still temperature is 40 ℃, stirs 2h, and to filter and promptly get concentration expressed in percentage by weight be 41% gyphosate solution in cooling again.
Claims (6)
1. the concocting method of a gyphosate solution is characterized in that, this method is to come the gyphosate solution of instead of part isopropylamine allotment 41% with ammoniacal liquor, specifically may further comprise the steps:
(1) glyphosate technicals and deionized water are placed compounding kettle, stir 20-40min, obtain mixed solution;
(2) open chuck cycle water, the still temperature of control compounding kettle is 30-40 ℃, and to mixed solution and dripping ammoniacal liquor, the dropping time is 0.5-2h;
(3) after ammoniacal liquor dripped and finishes, control still temperature was 30-40 ℃, continues to drip isopropylamine, and the dropping time is 1-3h, and insulated and stirred 1-2h obtains reaction solution again;
(4) after insulation finishes, add emulsifier in reaction solution, control still temperature is 30-40 ℃, stirs 0.5-2h, and cooling is filtered and promptly got gyphosate solution again.
2. the concocting method of a kind of gyphosate solution according to claim 1 is characterized in that, the weight ratio of glyphosate technicals and deionized water is (1-1.5) in the described step (1): (1.35-1.95).
3. the concocting method of a kind of gyphosate solution according to claim 1 is characterized in that, the addition of ammoniacal liquor and the weight ratio of glyphosate technicals are (0.09-0.15) in the described step (2): (1-1.5).
4. the concocting method of a kind of gyphosate solution according to claim 1 is characterized in that, the addition of isopropylamine and the weight ratio of glyphosate technicals are (0.28-0.45) in the described step (3): (1-1.5).
5. the concocting method of a kind of gyphosate solution according to claim 1 is characterized in that, the addition of the emulsifier in the described step (4) and the weight ratio of glyphosate technicals are (0.32-0.54): (1-1.5).
6. the concocting method of a kind of gyphosate solution according to claim 1 is characterized in that, the emulsifier in the described step (4) comprises polyoxyethylene carboxylate, polyoxyethylene amine, Span-20 or Span-80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100501803A CN101874505A (en) | 2009-04-28 | 2009-04-28 | Preparation method of glyphosate aqueous solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100501803A CN101874505A (en) | 2009-04-28 | 2009-04-28 | Preparation method of glyphosate aqueous solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101874505A true CN101874505A (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100501803A Pending CN101874505A (en) | 2009-04-28 | 2009-04-28 | Preparation method of glyphosate aqueous solution |
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| CN (1) | CN101874505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102396521A (en) * | 2011-12-09 | 2012-04-04 | 四川省乐山市福华通达农药科技有限公司 | Glyphosate isopropylamine salt water solution and preparation method thereof |
| CN111820235A (en) * | 2020-08-13 | 2020-10-27 | 陕西标正作物科学有限公司 | Trivalent glyphosate salt containing isopropylamine, preparation method thereof, herbicide and weeding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002085122A1 (en) * | 2001-04-23 | 2002-10-31 | Monsanto Technology Llc | Ammonium glyphosate compositions and process for their preparation |
| CN1504094A (en) * | 2002-11-28 | 2004-06-16 | 四川贝尔实业有限责任公司 | Glyphosate isopropyl amine salt solution preparation method and its composition as herbicide |
-
2009
- 2009-04-28 CN CN2009100501803A patent/CN101874505A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002085122A1 (en) * | 2001-04-23 | 2002-10-31 | Monsanto Technology Llc | Ammonium glyphosate compositions and process for their preparation |
| CN1504094A (en) * | 2002-11-28 | 2004-06-16 | 四川贝尔实业有限责任公司 | Glyphosate isopropyl amine salt solution preparation method and its composition as herbicide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102396521A (en) * | 2011-12-09 | 2012-04-04 | 四川省乐山市福华通达农药科技有限公司 | Glyphosate isopropylamine salt water solution and preparation method thereof |
| CN111820235A (en) * | 2020-08-13 | 2020-10-27 | 陕西标正作物科学有限公司 | Trivalent glyphosate salt containing isopropylamine, preparation method thereof, herbicide and weeding method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101103 |