阅读说明：本技术 一种草甘膦干悬浮剂及其加工方法 (Glyphosate dry suspending agent and processing method thereof ) 是由 徐益峰 方润 徐金娇 宁早霞 刘明浩 吴兵 王震 张帆 袁成军 季汪洋 安林峰 于 2019-10-15 设计创作，主要内容包括：本发明涉及一种草甘膦干悬浮剂,各原料的具体重量份数如下：草甘膦40-60份、十二烷基硫酸钠2-5份、木质素磺酸钙5-15份、有机硅氧烷0.1-5份、阿拉伯胶0.8-2份、乙基纤维素0.2-1份、硫酸铵1-3份、海藻酸钠2-5份、硅藻土15-35份、膨润土5-10份、钙粉1-6份。本发明的草甘膦干悬浮剂不仅具有很好的除草效果,还具有较优异的稳定性和崩解性,值得推广。(The invention relates to a glyphosate dry suspending agent, which comprises the following raw materials in parts by weight: 40-60 parts of glyphosate, 2-5 parts of sodium dodecyl sulfate, 5-15 parts of calcium lignosulfonate, 0.1-5 parts of organic siloxane, 0.8-2 parts of Arabic gum, 0.2-1 part of ethyl cellulose, 1-3 parts of ammonium sulfate, 2-5 parts of sodium alginate, 15-35 parts of diatomite, 5-10 parts of bentonite and 1-6 parts of calcium powder. The glyphosate dry suspending agent disclosed by the invention has a good weeding effect, has excellent stability and disintegration, and is worthy of popularization.)

1. A glyphosate dry suspending agent is characterized in that: the method comprises the following raw materials:

glyphosate, sodium dodecyl sulfate, calcium lignosulfonate, organosiloxane, Arabic gum, ethyl cellulose, ammonium sulfate, sodium alginate, diatomite, bentonite and calcium powder.

2. The glyphosate dry suspension concentrate of claim 1, wherein: the concrete parts by weight of the raw materials are as follows:

40-60 parts of glyphosate, 2-5 parts of sodium dodecyl sulfate, 5-15 parts of calcium lignosulfonate, 0.1-5 parts of organic siloxane, 0.8-2 parts of Arabic gum, 0.2-1 part of ethyl cellulose, 1-3 parts of ammonium sulfate, 2-5 parts of sodium alginate, 15-35 parts of diatomite, 5-10 parts of bentonite and 1-6 parts of calcium powder.

3. The glyphosate dry suspension concentrate of claim 1, wherein: the concrete parts by weight of the raw materials are as follows:

50 parts of glyphosate, 3 parts of sodium dodecyl sulfate, 10 parts of calcium lignosulfonate, 2 parts of organosiloxane, 1 part of Arabic gum, 0.8 part of ethyl cellulose, 2 parts of ammonium sulfate, 3 parts of sodium alginate, 25 parts of diatomite, 7 parts of bentonite and 2 parts of calcium powder.

4. A process for the preparation of a dry suspension of glyphosate as claimed in any of claims 1 to 3, characterized in that: the method comprises the following specific steps:

(1) mixing glyphosate, sodium dodecyl sulfate, calcium lignosulfonate, organosiloxane, Arabic gum, ethyl cellulose, ammonium sulfate, sodium alginate, diatomite, bentonite, calcium powder and water to obtain slurry;

(2) sanding the evenly mixed slurry by a sanding machine;

(3) and after sanding, carrying out spray drying and granulation on the mixture to obtain the glyphosate dry suspending agent.

5. The processing method of the glyphosate dry suspending agent according to claim 4, characterized in that: the particle size of the slurry after sanding in the step (2) is 2-4 μm.

6. The processing method of the glyphosate dry suspending agent according to claim 4, characterized in that: the spray drying conditions in step (3) are as follows:

the temperature of the hot air inlet is controlled at 118-148 deg.C, cold air outlet temperature of 68-78 deg.C, and atomization pressure of 5 × 10⁴～50×10⁴kPa, the feed rate is 12 to 18 mL/min.

7. The processing method of the glyphosate dry suspending agent according to claim 4, characterized in that: the spray drying conditions in step (3) are as follows:

the temperature of the hot air inlet is controlled to be 138 ℃, the temperature of the cold air outlet is 73 ℃, and the atomization pressure is 30 multiplied by 10⁴kPa, feed rate was 14 mL/min.

Technical Field

The invention belongs to the technical field of herbicides, and particularly relates to a glyphosate dry suspending agent and a processing method thereof.

Background

Glyphosate is also known as glyphosate, Roundup, glyphosate and glyphosate. The glyphosate is a pure non-volatile white solid with a specific gravity of 1.705, melts at about 230 ℃ with concomitant decomposition. The solubility in water at 25 ℃ is 1.2%, the compound is insoluble in common organic solvents, and the isopropylamine salt is completely soluble in water.

Glyphosate is a systemic conduction type chronic broad-spectrum biocidal herbicide, and mainly inhibits enolpyruvyl shikimate phosphate synthase in a body, thereby inhibiting the conversion of shikimate to phenylalanine, tyrosine and tryptophan, and leading the synthesis of protein to be interfered to cause plant death. Glyphosate is absorbed by stems and leaves and then transferred to various parts of plants, and can prevent and kill monocotyledons, dicotyledons, annual and perennial plants, herbaceous plants, shrubs and other plants of more than 40 families. After entering the soil, the glyphosate is combined with metal ions such as iron, aluminum and the like to lose activity, and has no adverse effect on seeds and soil microorganisms hidden in the soil.

Disclosure of Invention

The invention aims to: provides a glyphosate dry suspending agent and a processing method thereof.

In order to achieve the above purpose, the invention provides the following technical scheme:

a glyphosate dry suspending agent comprises the following raw materials:

glyphosate, sodium dodecyl sulfate, calcium lignosulfonate, organosiloxane, Arabic gum, ethyl cellulose, ammonium sulfate, sodium alginate, diatomite, bentonite and calcium powder.

Further, the specific parts by weight of the raw materials are as follows:

40-60 parts of glyphosate, 2-5 parts of sodium dodecyl sulfate, 5-15 parts of calcium lignosulfonate, 0.1-5 parts of organic siloxane, 0.8-2 parts of Arabic gum, 0.2-1 part of ethyl cellulose, 1-3 parts of ammonium sulfate, 2-5 parts of sodium alginate, 15-35 parts of diatomite, 5-10 parts of bentonite and 1-6 parts of calcium powder.

Preferably, 50 parts of glyphosate, 3 parts of sodium dodecyl sulfate, 10 parts of calcium lignosulfonate, 2 parts of organic siloxane, 1 part of Arabic gum, 0.8 part of ethyl cellulose, 2 parts of ammonium sulfate, 3 parts of sodium alginate, 25 parts of diatomite, 7 parts of bentonite and 2 parts of calcium powder.

A processing method of glyphosate dry suspending agent comprises the following steps:

(1) mixing glyphosate, sodium dodecyl sulfate, calcium lignosulfonate, organosiloxane, Arabic gum, ethyl cellulose, ammonium sulfate, sodium alginate, diatomite, bentonite, calcium powder and water to obtain slurry;

(2) sanding the evenly mixed slurry by a sanding machine;

(3) and after sanding, carrying out spray drying and granulation on the mixture to obtain the glyphosate dry suspending agent.

Further, the particle size of the slurry after sanding in the step (2) is 2-4 μm.

Further, the conditions of spray drying in step (3) are as follows:

the temperature of the hot air inlet is controlled to be 118-148 ℃, the temperature of the cold air outlet is 68-78 ℃, and the atomization pressure is 5 multiplied by 10⁴～50×10⁴kPa, the feed rate is 12 to 18 mL/min.

Preferably, the conditions for spray drying in step (3) are as follows:

the temperature of the hot air inlet is controlled to be 138 ℃, the temperature of the cold air outlet is 73 ℃, and the atomization pressure is 30 multiplied by 10⁴kPa, feed rate was 14 mL/min.

The invention has the beneficial effects that:

the glyphosate dry suspending agent disclosed by the invention has a good weeding effect, has excellent stability and disintegration, and is worthy of popularization.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION