CN101543220A - Atrazine high-hard water resistance water dispersible granules and preparation method thereof - Google Patents
Atrazine high-hard water resistance water dispersible granules and preparation method thereof Download PDFInfo
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- CN101543220A CN101543220A CN200910098305A CN200910098305A CN101543220A CN 101543220 A CN101543220 A CN 101543220A CN 200910098305 A CN200910098305 A CN 200910098305A CN 200910098305 A CN200910098305 A CN 200910098305A CN 101543220 A CN101543220 A CN 101543220A
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- atrazine
- hard water
- dispersible granules
- water dispersible
- water resistance
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Abstract
The invention discloses atrazine high-hard water resistance water dispersible granules, which comprises the following raw materials by mass percentage: 70 to 93 percent of atrazine, 3 to 10 percent of dispersant, 1 to 5 percent of wetter, 0 to 8 percent of disintegrant, 1 to 5 percent of hard water resisting agent, and 0 to 25 percent of filler. At the same time, the invention also discloses a method for preparing the water dispersible granules, which adopts a processing technique of mixing, crushing, remixing, adhering, granulation and sieving. The atrazine water dispersible granules can maintain excellent suspension percentage, which is above 90 percent, in standard hard water as well as in two-fold and three-fold standard hard water, thereby ensuring the product can achieve better medicament effect when used in places with high water hardness and enlarging the application range of the product.
Description
Technical field
The present invention relates to the pesticidal preparations field, relate in particular to a kind of weed killer herbicide atrazine water dispersible granule and preparation method thereof.
Background technology
Atrazine is before a kind of selectivity inner sucting conduction type seedling, herbicide after seedling, is absorbed as the master with root, and cauline leaf absorbs seldom, can be transmitted to plant meristematic tissue and leaf portion rapidly, disturbs photosynthesis that weeds are caused death.It can be decomposed the generation innocuous substance by the corn ketolase in resistance crop bodies such as corn, thereby to safety such as corns.Before weeds are unearthed and early stage dispenser behind the seedling, can be used for corn, Chinese sorghum, sugarcane, cotton, tea place, orchard, Pu Taoyuan, rubber plantation etc., prevent and kill off annual gramineous weed and broad leaved weed.Perennial weed also there is certain inhibitory action.
Water dispersible granules is one of main formulation of atrazine.At present, commercially available atrazine water dispersible granule also all is to research and develop and produce according to standards such as FAO, can only guarantee in standard hard water, to keep suspensibility (more than 80%) well, when reaching, hardness of water just is difficult to keep the higher suspension rate more than the 342PPm, what particularly suspensibility descended when hardness of water reaches the 1000PPm left and right sides is just more obvious, generally can only reach 40-50%, that have even lower, had a strong impact on the drug effect of product.And a lot of areas of using atrazine water dispersible granule in the whole world, its water hardness has just surpassed 342PPm, and some area even can reach about 1000PPm is as Australia.Therefore, developing high anti-hard water atrazine water dispersible granule at these areas is very important.
Summary of the invention
The objective of the invention is to propose a kind of high anti-hard water atrazine water dispersible granule and preparation method thereof in order to solve the shortcoming of atrazine water dispersible granule suspension rate variance in high-hardness water.
Purpose of the present invention can reach by following measure:
A kind of atrazine high-hard water resistance water dispersible granules, the mass percent of its raw material consists of:
Atrazine 70～93%;
Dispersant 3～10%;
Wetting agent 1～5%;
Disintegrant 0～8%;
Anti-hard water agent 1～5%;
Filler 0～25%.
As preferably, the mass percent of its raw material consists of:
Atrazine 70～80%;
Dispersant 5～10%;
Wetting agent 1～5%;
Disintegrant 2～5%;
Anti-hard water agent 1～5%;
Filler 3～15%.
An amount of adding disintegrant especially adds simultaneously with filler and can make atrazine high-hard water resistance water dispersible granules keep better suspensibility in hard water.
The dispersant that the present invention uses is in alkylnaphthalene sulfonate formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, aliphatic alcohol sodium sulfate, acrylate homopolymer sodium salt and the polyoxyethylene polyoxypropylene block copolymer one or more, preferred alkyl naphthalenesulfonate formaldehyde condensation compound or acrylate homopolymer sodium salt, most preferably acrylate homopolymer sodium salt.
The wetting agent that the present invention uses is as lauryl sodium sulfate, nekal (be commonly called as and draw back powder), in the methoxyl group fatty acyl amido benzene sulfonic acid sodium salt one or more, wherein preferably to methoxyl group fatty acyl amido benzene sulfonic acid sodium salt.
The disintegrant that the present invention selects for use is one or more in sodium carboxymethyl starch, mineral salt, the polyvidone, and described mineral salt can be selected various water-soluble inorganic salts such as calcium, phosphorus, potassium, sodium, iron or iodine for use, wherein preferred sodium carboxymethyl starch.
The anti-hard water agent that the present invention selects for use is one or more in crystalline sodium pyrophosphate, calgon, diethylene-triamine pentaacetic acid, the N-HEDTA trisodium, wherein preferred calgon or N-(hydroxyethyl) ethylenediamine triacetic acid trisodium, the adding of anti-hard water agent can improve the suspensibility of atrazine high-hard water resistance water dispersible granules of the present invention in hard water.
Anti-hard water agent is N-(hydroxyethyl) ethylenediamine triacetic acid trisodium most preferably, not only can improve the suspensibility of water dispersible granules in hard water, find to increase the stability of suspension in the experiment, prolong suspension time, the suspension time that requires in the general national standard is at least 30 minutes, but anti-hard water agent selects for use N-(hydroxyethyl) ethylenediamine triacetic acid trisodium can contrast the stable suspersion time lengthening 25～30% of using other anti-hard water agent.
The filler that the present invention selects for use is one or more in kaolin, attapulgite, precipitated calcium carbonate, white carbon, the diatomite, wherein preferred white carbon.
Atrazine high-hard water resistance water dispersible granules of the present invention adopts the processing technology of mixing-pulverizing-mixing-bonding again-granulation-screening.Concrete preparation method mixes all raw materials earlier, pulverizes through micro jet again, obtain the above superfine powder of particle diameter 1000 orders after, add water again and bind and carry out the granulation oven dry, sieve with vibratory sieve at last, obtain finished product.
The invention has the advantages that: prepared atrazine water dispersible granule not only can keep good suspensibility in standard hard water (342PPm), in twice (684PPm), three times of (1026PPm) standard hard water, also can keep good suspensibility simultaneously, thereby guarantee that this product uses the drug effect that also can obtain in the higher area of water hardness.
Embodiment
Embodiment 1 70% atrazine high-hard water resistance water dispersible granules
The mass percentage content of each raw material is:
Atrazine 70%
Acrylate homopolymer sodium salt 8%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 2.5%
Sodium carboxymethyl starch 5%
N-(hydroxyethyl) ethylenediamine triacetic acid trisodium 4%
White carbon 10.5%
With all raw materials all put in proportion in the double worm mixer mix 30 minutes after; it is ground into fine powder more than 1000 orders through micro jet; material in cyclopneumatic separator and the bag-type dust all is collected in the double worm mixer mixes once more; obtain uniform powder; again powder is dropped into and add water in the trough type mixing machine and bind; carry out granulation through Squeezinggranulator again after binding well; Shi particle enters Vibratingfluidbeddrier and dries simultaneously, and the particle after will drying again at last obtains finished product through bolting.
Embodiment 2 80% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 80% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 80%
Acrylate homopolymer sodium salt 6%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 2.5%
Sodium carboxymethyl starch 4.5%
N-(hydroxyethyl) ethylenediamine triacetic acid trisodium 4%
White carbon 3%.
Embodiment 3 90% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 90% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 90%
Acrylate homopolymer sodium salt 3.5%
Alkylnaphthalene sulfonate formaldehyde condensation products 1.5%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 1.5%
N-(hydroxyethyl) ethylenediamine triacetic acid trisodium 3.5%.
Embodiment 4 93% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 93% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 93%
Acrylate homopolymer sodium salt 3.0%
Alkylnaphthalene sulfonate formaldehyde condensation products 1.0%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 1.5%
N-(hydroxyethyl) ethylenediamine triacetic acid trisodium 1.5%.
Embodiment 5 75% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 75% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 75%
Fatty alcohol-polyoxyethylene ether 5.0%
Aliphatic alcohol sodium sulfate 4.0%
Draw back powder 1.5%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 2.5%
Potassium sulphate 2.0%
N-(hydroxyethyl) ethylenediamine triacetic acid trisodium 3.0%
Kaolin 7.0%.
Embodiment 6 87% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 87% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 87%
Acrylate homopolymer sodium salt 2.5%
Alkylnaphthalene sulfonate formaldehyde condensation products 1.0%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 1.5%
Polyvidone 2.0%
Calgon 2.0%
Attapulgite 4.0%.
Embodiment 7 93% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 93% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 93%
Acrylate homopolymer sodium salt 3.0%
Alkylnaphthalene sulfonate formaldehyde condensation products 1.0%
To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 1.5%
Diethylene-triamine pentaacetic acid 1.5%.
Embodiment 8 88% atrazine high-hard water resistance water dispersible granules
Preparation method by embodiment 1 makes 88% atrazine high-hard water resistance water dispersible granules with the raw material of following mass percent composition:
Atrazine 88%
Polyoxyethylene polyoxypropylene block copolymer 4.0%
Lauryl sodium sulfate 2.5%
Crystalline sodium pyrophosphate 1.0%
Precipitated calcium carbonate 4.5%.
The suspensibility testing result
Adopt the suspensibility (representing) of the atrazine high-hard water resistance water dispersible granules of different water sample detection embodiment 1～8 preparation, result such as table 1 with percentage:
Table 1
As can be seen, even adopt three times of standard hard water, atrazine high-hard water resistance water dispersible granules of the present invention still can reach the suspensibility more than 90% in the table 1.
Claims (8)
1, a kind of atrazine high-hard water resistance water dispersible granules is characterized in that, the mass percent of its raw material consists of:
Atrazine 70～93%;
Dispersant 3～10%;
Wetting agent 1～5%;
Disintegrant 0～8%;
Anti-hard water agent 1～5%;
Filler 0～25%.
2, atrazine high-hard water resistance water dispersible granules according to claim 1 is characterized in that, the mass percent of its raw material consists of:
Atrazine 70～80%;
Dispersant 5～10%;
Wetting agent 1～5%;
Disintegrant 2～5%;
Anti-hard water agent 1～5%;
Filler 3～15%.
3, atrazine high-hard water resistance water dispersible granules according to claim 1, it is characterized in that described dispersant is one or more in alkylnaphthalene sulfonate formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, aliphatic alcohol sodium sulfate, acrylate homopolymer sodium salt, the polyoxyethylene polyoxypropylene block copolymer.
4, atrazine high-hard water resistance water dispersible granules according to claim 1 is characterized in that, described wetting agent is lauryl sodium sulfate, draw back powder, in the methoxyl group fatty acyl amido benzene sulfonic acid sodium salt one or more.
5, atrazine high-hard water resistance water dispersible granules according to claim 1 is characterized in that, described disintegrant is one or more in sodium carboxymethyl starch, mineral salt, the polyvidone.
6, atrazine high-hard water resistance water dispersible granules according to claim 1 is characterized in that, described anti-hard water agent is one or more in crystalline sodium pyrophosphate, calgon, diethylene-triamine pentaacetic acid, the N-HEDTA trisodium.
7, atrazine high-hard water resistance water dispersible granules according to claim 1 is characterized in that, described filler is one or more in kaolin, attapulgite, precipitated calcium carbonate, white carbon, the diatomite.
8, a kind of preparation method as each described atrazine high-hard water resistance water dispersible granules of claim 1～6, it is characterized in that, be ground into granularity at least 1000 purpose powders after all raw materials are mixed, add an amount of water again and bind, after granulation, screening, obtain finished product.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163520A (en) * | 2014-06-16 | 2014-11-26 | 河海大学 | Method and device for granulation reaction by using high-hardness water |
| CN110870475A (en) * | 2019-10-31 | 2020-03-10 | 浙江中山化工集团股份有限公司 | Chlorantraniliprole water dispersible granule with high hard water resistance and preparation method thereof |
| CN114642208A (en) * | 2020-12-21 | 2022-06-21 | 山东潍坊润丰化工股份有限公司 | Fluazinam water dispersible granule and preparation method thereof |
| CN114982749A (en) * | 2022-07-26 | 2022-09-02 | 浙江中山化工集团股份有限公司 | Hard water-resistant terbuthylazine water dispersible granule and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2683079B2 (en) * | 1987-07-01 | 1997-11-26 | アイシーアイ オーストラリア オペレイションズ プロプライアタリー リミティド | Method for producing water-dispersible granules |
| AU2380595A (en) * | 1994-04-15 | 1995-11-10 | Henkel Corporation | Biologically active composition |
| CN101305718A (en) * | 2008-06-23 | 2008-11-19 | 江苏瑞禾化学有限公司 | Granulation method of pesticides circular water dispersible granule |
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2009
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163520A (en) * | 2014-06-16 | 2014-11-26 | 河海大学 | Method and device for granulation reaction by using high-hardness water |
| CN110870475A (en) * | 2019-10-31 | 2020-03-10 | 浙江中山化工集团股份有限公司 | Chlorantraniliprole water dispersible granule with high hard water resistance and preparation method thereof |
| CN114642208A (en) * | 2020-12-21 | 2022-06-21 | 山东潍坊润丰化工股份有限公司 | Fluazinam water dispersible granule and preparation method thereof |
| AU2021200508A1 (en) * | 2020-12-21 | 2022-07-07 | Shandong Weifang Rainbow Chemical Co., Ltd. | Fluazinam water dispersible granule and preparation method thereof |
| AU2021200508B2 (en) * | 2020-12-21 | 2022-07-21 | Shandong Weifang Rainbow Chemical Co., Ltd. | Fluazinam water dispersible granule and preparation method thereof |
| CN114642208B (en) * | 2020-12-21 | 2023-07-21 | 山东潍坊润丰化工股份有限公司 | Fluazinam water dispersible granule and preparation method thereof |
| CN114982749A (en) * | 2022-07-26 | 2022-09-02 | 浙江中山化工集团股份有限公司 | Hard water-resistant terbuthylazine water dispersible granule and preparation method thereof |
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| CN101543220B (en) | 2012-11-07 |
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Address after: 313116 No. four bridge, north of Zhejiang, Changxing County Patentee after: ZHEJIANG ZHONGSHAN CHEMICAL GROUP STOCK CO., LTD. Address before: 313116 No. four bridge, north of Zhejiang, Changxing County Patentee before: ZhongShan Chemical Industries Group |