CN101627755A - Solid preparation of 1.3-dichloropropylene and preparation method thereof - Google Patents
Solid preparation of 1.3-dichloropropylene and preparation method thereof Download PDFInfo
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- CN101627755A CN101627755A CN200910162750A CN200910162750A CN101627755A CN 101627755 A CN101627755 A CN 101627755A CN 200910162750 A CN200910162750 A CN 200910162750A CN 200910162750 A CN200910162750 A CN 200910162750A CN 101627755 A CN101627755 A CN 101627755A
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Abstract
The invention relates to a solid preparation containing 1.3-dichloropropylene and a preparation method thereof. The preparation changes the common liquid form and improves the use safety, and the sustained-release effect of the preparation improves the availability of technical material, prolongs the effect of the technical material and greatly reduces the production cost and the use cost. The solid preparation has the advantages of wider application range, more convenient use and convenient popularization.
Description
Technical field
The present invention relates to a kind of formulation of soil fumigant, concrete for to contain 1.3---a kind of formulation of dichloropropylene.
Background technology
1.3-dichloropropylene, its English name: 1.3-1,3-dichloropropene; 1,3-dichloropropylene, another name: 1.3-D.Its fusing point-84 ℃, boiling point: 112 ℃ (cis), 104.3 ℃ (trans), relative density 1.2170 (suitable), 1.2240 (instead).Water insoluble, be dissolved in organic solvents such as ethanol, ether, benzene.Be colourless volatile liquid, agricultural has certain control efficiency as soil fumigant to fungi and soil insect.Traditional soil disinfection mainly adopts Celfume to carry out soil-fumigating.Yet Celfume is a kind of material that damages the ozone layer, in Montreal protocol, be listed in controlled substance, world wide will ban use of after 2015, therefore with 1.3---and dichloropropylene product as an alternative becomes one of selected stifling medicine in countries in the world.But because 1.3---dichloropropylene is volatile liquid dosage form, consumes very greatly in the use, and every mu of stifling requirement is greatly about 15---20L, and also drug effect is limited by the gentle humidity in ground.As ground temperature below 15 ℃ the time, sowing or transplant and need three all dispensers in advance.Temperature is trembled with fear regional easy farming season by mistake; A large amount of fast volatilizations when temperature is high, it is impaired easily to make it close on crop, and the green house of intercropping can't use.In addition, plant growth uses 1.3 in the limestone area---and dichloropropylene has pollution to underground water.Legal provisions use 1.3 in the U.S.---and dichloropropylene need have certain buffer zone with the population residence, adopts the chemigation method to need the 30.5m buffer strip; And adopt the injection buffer strip is 91.5m.Therefore, 1.3---it is stifling that dichloropropylene is used for soil disinfection, has many drawbacks.
Summary of the invention
At the shortcoming that above-mentioned existing product exists, the object of the invention provides a kind of 1.3---the dichloropropylene novel form, improve the safety of its use, and improve the availability of drug effect simultaneously.
Basic point of the present invention is to make 1.3---dichloropropylene stoste is adsorbed on the free of contamination solid dosage forms of a kind of nonhazardous, can slowly discharge 1.3 when the solid dosage forms of product is used---dichloropropylene, prolongation effective drug duration.Concrete technical scheme is:
1, adsorbent is adsorbed preceding activation, seal stand-by.
2, with 1.3---dichloropropylene vaporization feeds in the above-mentioned adsorbent, reach requirement to the adsorbent weightening finish till.
3, will adsorb 1.3---the adsorbent of dichloropropylene mixes makes its quality even, packaging closures.
Wherein, adsorbent is that one or both mixtures in active carbon, diatomite, the carclazyte etc. are formed, and has certain absorption affinity after the activation and gets final product.Adsorbent can be a powdery, also can be granular, with granular for well.With 1.0---the 1.5mm optimum.These adsorbents are commonly used for catalyst carrier, and activation method is a conventional method.Activation can be used activation equipment in addition, and is as activation pot and post activation, then dry; Also can in adsorption tanks, activate, activate and just be used for absorption after dry.Can carry out at normal temperatures and pressures during absorption, but adsorption rate is slow, if adsorption tanks negative pressure (decompression) slightly, 1.3---the dichloropropylene heating evaporation, then adsorption rate can be accelerated.With normal temperature and pressure absorption, the heating evaporation mode is suitable.1.3---dichloropropylene is a highly volatile liquid, and absorption is wanted relative equilibrium with evaporation, and can not be too slow, also can not be too fast, and steam absorption is not exclusively overflowed.Evaporating temperature is controlled at 70 ℃～boiling point and is advisable.This solid dosage forms contains 1.3---dichloropropylene 5---40%, with 20---30% is good.Product is basic packing with the plastic bottle, odorlessness.Open bottle cap during use and take, slightly peculiar smell.Best to spread manuer in holes, be about to soil and make a call to 15---the 20cm deep holes, shut after the dispenser according to quantity, begin slow release during 10 ℃ of ground temperature, improve and desorption gradually with ground temperature, level off to zero at last.20% content, mu executes 15---and 20kg, preventive effect can be with former medicine 15---20L be suitable.The longevity of residure sustainable 150---200 days.The adsorbent that the present invention selects for use has no adverse effects to soil, and especially active carbon has loose to soil and heats effect.This product is applicable to original use 1.3---all occasions of dichloropropylene agricultural chemicals, and equally effective, and safety, economy.
In existing product relatively, the characteristics that the present invention had are:
1, product is a solid dosage forms, uses the safety of storing up with fortune that outstanding raising is arranged.Under in order to be effective prerequisite, easy to use, purposes wide, few with former dose, expense is low, the drug effect phase is long, is at present both at home and abroad unique 1.3---the solid dosage forms of dichloropropylene.
2, make this formulation with absorption method, show an interesting new approach, technology is reasonable, and method is easy, and three-waste free discharge, and environment is not had any impact.
Embodiment
Embodiment 1 powdered activated carclazyte absorption 1.3---dichloropropylene test
Activated and the dry powdered activated carclazyte 16g that packs in the glass adsorption tower connects vaporizer, and tower is suitable for reading to be the tail gas exhaust outlet, connects sodium sulfite solution.End opening is an air inlet, connects 1.3---former medicine 4% heating steam of dichloropropylene, stop evaporation after 2 hours, and adsorbent weightening finish 4g, the no chloride of solution detection exists in the tail gas absorption bottle.
Embodiment 2 diatomite adsorption 1.3---dichloropropylenes
Device is as example 1, and the activated and dry diatomite particle of packing in the adsorption tower, particle diameter are 0.5---1.0mm, heating evaporation, adsorbent weightening finish 4g.
Embodiment 3 granular activated carbons absorption 1.3---dichloropropylene
The particle that the particle diameter of packing in the adsorption tower is 0.35---0.84mm activated carbon grain (sieve and get 20---between No. 40 standard screens) 100g, 1.3---dichloropropylene is heated to 70 ℃---boiling point, weightening finish in 2 hours weightening finish 30% in 20%, 3 hour.
Embodiment 4 1.3---the drug effect of dichloropropylene solid dosage forms
1, balsam pear test tank: area 10m
2, the thick 40cm of soil layer transplants balsam pear, and field planting is after 10 days, the every post of every strain executes 20%1.3---dichloropropylene solid particle agent 3---5g, unrooted tie lines parasitosis generation after 210 days.
2, tomato in plastic greenhouse test: practice ground 666.7m
2,------dichloropropylene solid particle agent 3---4g, well developed root system after 28 days, the disease-free generation of 10 days, spreading manuer in holes 20%1.3 of transplanting back 7.
3, booth eggplant test: plant the booth of eggplant for many years, verticillium wilt all has generation every year, and increases the weight of year by year.Practice ground 666.7m
2, medicine variety and consumption: 66.7% chloropicrin emulsion 9kg, 20%1.3---dichloropropylene solid dosage forms 9kg, 250 times of liquid 20kg of 25% carbendazol wettable powder water to irradiation, and control efficiency is as follows:
Handle medicine diseased plant rate % relative control effect %
Chloropicrin emulsion 17.83 90.34
1.3---dichloropropylene 17.60 89.0
Carbendazim 56.31 71.02
Blank 86.55
Claims (6)
1, a kind of 1.3---the formulation of dichloropropylene, the solid dosage forms of---40%1.3---dichloropropylene that it is characterized in that containing 5.System adopts absorbing process and makes.Adsorbent is powdery or granular active carbon, atlapulgite, diatomite.Its purposes is used for the soil-fumigating pest control, can take to spread manuer in holes, method such as ditch spread, seed broadcaster are turned over.
2, according to claim 1, it is characterized in that described 1.3---the solid fumigant type of dichloropropylene the contains 5 former medicine of---40%1.3---dichloropropylene, with content 20---30% is good.
3,, it is characterized in that its adsorbent is that one or both mixtures in powdery or granular active carbon, atlapulgite, the diatomite etc. are formed according to claim 1,2 described.Particle diameter is with 0.5---the 1.5mm optimum.
4, according to claim 1,2,3 described, it is characterized in that its manufacturing process is that adsorbent is activated, after the drying, with 1.3---steam of dichloropropylene feeds and adsorbs, and treats adsorbent weightening finish 5---40% forms.
5, according to claim 1,4 described,---steam of dichloropropylene is 1.3---liquid of dichloropropylene that it is characterized in that described 1.3 is through heating evaporation, and its temperature is 70 a ℃～boiling point.
Methods such as 6, according to claim 1, its purposes is used for the soil-fumigating pest control, and its usage can be taked to spread manuer in holes, ditch spread, seed broadcaster are turned over, mu formulation rate 10---30kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162750A CN101627755A (en) | 2009-08-13 | 2009-08-13 | Solid preparation of 1.3-dichloropropylene and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162750A CN101627755A (en) | 2009-08-13 | 2009-08-13 | Solid preparation of 1.3-dichloropropylene and preparation method thereof |
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| CN101627755A true CN101627755A (en) | 2010-01-20 |
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| CN200910162750A Pending CN101627755A (en) | 2009-08-13 | 2009-08-13 | Solid preparation of 1.3-dichloropropylene and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109802A (en) * | 2013-02-26 | 2013-05-22 | 韩景良 | Preparation method and application of 1,3-dichloropropene solid slow-release preparation |
| CN104604860A (en) * | 2015-01-28 | 2015-05-13 | 中国农业科学院植物保护研究所 | Dimethyl disulfide granules and preparation method thereof |
-
2009
- 2009-08-13 CN CN200910162750A patent/CN101627755A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109802A (en) * | 2013-02-26 | 2013-05-22 | 韩景良 | Preparation method and application of 1,3-dichloropropene solid slow-release preparation |
| CN104604860A (en) * | 2015-01-28 | 2015-05-13 | 中国农业科学院植物保护研究所 | Dimethyl disulfide granules and preparation method thereof |
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Addressee: Zheng Baixiang Document name: Notification of before Expiration of Request of Examination as to Substance |
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Application publication date: 20100120 |