CN1084501A - Zeolite is wrapped up in urea, the fertile preparation technology of the long-acting medicine of agricultural chemicals - Google Patents
Zeolite is wrapped up in urea, the fertile preparation technology of the long-acting medicine of agricultural chemicals Download PDFInfo
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- CN1084501A CN1084501A CN 92110951 CN92110951A CN1084501A CN 1084501 A CN1084501 A CN 1084501A CN 92110951 CN92110951 CN 92110951 CN 92110951 A CN92110951 A CN 92110951A CN 1084501 A CN1084501 A CN 1084501A
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- urea
- zeolite
- fertilizer
- agricultural chemicals
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The preparation technology of urea, the long-acting medicine fertilizer of agricultural chemicals is wrapped up in the present invention for zeolite.Because zeolite " molecule " sieve can be the NH of urea under the soil urine enzyme effect
4 +Absorption stores, and treats to discharge when crop needs, so it is a kind of long-acting fertilizer that zeolite is wrapped up in urea again; Urea belongs to neutral, and the drug effect degraded can not take place above agricultural chemicals is sprayed on.Zeolite coated urea particulate also is rolled in agricultural chemicals wherein simultaneously, because zeolite is the good carrier of agricultural chemicals, so this is a kind of fertilizer efficiency, drug effect is muddy to be the long-acting medicine fertilizer of one.Be difficult for the problem of balling-up as material fertilizer in compound fertilizer having solved urea on the technology, this medicine fertilizer can play in production practice simplifies the cultivation effect.
Description
The present invention is with natural zeolite coated granule urea, and other nitrogenous fertilizer and agricultural chemicals become the preparation technology of long-acting pesticide fertilizer.
Zeolite is a kind of aqueous basic metal and alkaline earth metal aluminosilicate mineral.Have in the lattice with the external world to communicate, the aperture is 3-11A ° a hole passage, only could come in and go out less than the molecule and the atom in this aperture, effect that Here it is said " molecular sieve ".
In the Zeolite silicate tetrahedral structure, Al
3+Normal displacement Si
4+, insufficient electric charge is by Na
+, K
+, Ca
2+Deng compensation balance, these equilibrated positively charged ions and water molecules are can both be in the passage of hole free movable, when the positively charged ion that enters by " molecular sieve " in the passage of hole, as NH
+
4, just be easy to an equilibrated cationic exchange and come out, and just be left out, like this NH greater than the bacterium nitrobacter in " molecular sieve " aperture
+
4Protected storage is got up, as extraneous NH
+
4Reduce, other positively charged ion also can enter the hole passage NH
+
4Replacement is come out again.
Since the sixties, particularly the scientific research personnel of state such as Japan just utilizes this feature of zeolite, and having carried out zeolite mixes a lot of tests that are applied to crop with various nitrogenous fertilizer, and the result has proved zeolite for improving utilization rate of nitrogen fertilizer, and it is obvious to increase the crop yield effect.1972, China found since the zeolite deposit first, and a lot of research and production departments have made many zeolites and different fertilizer and have been mixed and are applied to the test of crop, and effect is sure.1991, Municipal Commission of Science and Technology classified " eight or five " emphasis problem to " effect and the application technical research of zeolite in compound fertilizer " as.Up to the present, ground such as Beijing, Anhui is applied to zeolite compound fertilizer in the production again and goes.
The zeolite adding technique is to be not less than the zeolite that adds 20-50% in 25% the compound fertilizer at nutrient content, utilization rate of nitrogen fertilizer improves more than 10%, and zeolite itself also contains various trace elements, so zeolite interpolation amplitude is high more good more, but can not surpass 50%, the zeolite addition is big more, and is just necessary more with high nitrogen, phosphorus, the potassium material fertilizer of nutrient content, as: nitrogenous fertilizer just must use urea.But in compound fertilizer, add urea at present and have only two kinds of methods:
One, be added in the compound fertilizer after urea is pulverized, reproduce the grain oven dry, this method power consumption is big, and through high temperature, nitrogen loss is big, and the urea addition can not be higher than 10% because amount many be difficult for balling-up.
Two, the direct blending of granular urea in compound fertilizer, zeolite does not directly contact urea, this just influences the guarantor nitrogen effect of zeolite to urea.In addition, coated ureas such as domestic and international also useful tree cake, lac resin, but the cost costliness.
Therefore, how in zeolite compound fertilizer, to add the urea raw material and become current urgency first problem to be solved.
Second preparation technology's problem that problem is an agricultural chemicals fertilizer, this is an emerge science, at present, particularly Japan, the U.S., USSR (Union of Soviet Socialist Republics), also have China, in order to simplify cultivation, reduction agricultural operation cost, boost productivity, development agricultural chemicals fertilizer, it is very fast with the fertile tempo of the agricultural chemicals that kills soil pests particularly to remove weed fertilizer, but preparation technology is complicated especially, so that influence further developing of agricultural chemicals fertilizer.
The object of the present invention is to provide a kind of technology with zeolite coated urea, agricultural chemicals, its advantage is that (1) zeolite coated urea ball can not only improve the urea utilization ratio more than 10%, can also also make balling-up to phosphorus, potassium according to the requirement of prescription, two kinds of balls, according to the crop demand, can manufacture compound fertilizer by the flexible blending of different ratios; (2) with the agricultural chemicals fertilizer of zeolite dressing, essence also is the carrier of zeolite as agricultural chemicals, thereby has improved drug action to some extent.
Through Patent Office of the People's Republic of China's retrieval, up to the present, the preparation technology of also not useful zeolite coated urea, agricultural chemicals has with the associated patent of the present invention: CN89105036.1, CN91100358.4, CN90103253, CN92108010, SU763310.
Preparation technology:
(1) quantitative granular urea is put into shaking tray, and rotate;
(2) spray into the water of urea amount 6-10% with shower nozzle, shook 3 minutes, make the urea granules surface molten slightly.
(3) add the above zeolite powder of 100 orders, addition is: urea: zeolite=3: 2～3.
(4) if still have urea granules and zeolite powder in the shaking tray, water shortage is described, can continues spraying, till balling-up.
(5) wet bulb of zeolite coated urea, by being sent to dram, temperature is controlled at below the temperature that prevents the urea fusing, product, also can be put into the cool solarization in dry place to wet bulb.
(6) urea efficiency is slower, when adding other nitrogenous fertilizer as need, then can be dissolved in other nitrogenous fertilizer in the water that sprays into urea, and it is identical with the above-mentioned water yield to spray into solution, and operation afterwards is same as described above.
(7) if the interpolation trace element can be dissolved in trace element in the water, spray on urea, or micro-directly being sprinkling upon on the urea that rolls in the shaking tray sprayed water again, operation afterwards is same as described above.
(8) when making agricultural chemicals fertilizer, can be dissolved in emulsifiable concentrates for agricultural chemicals or pulvis in the water, form water solvent, spray on the urea again.Operation afterwards is same as described above, but will notice that the water solvent that (1) is sprayed on the urea still is 6-10%; (2) tight calculating, the urea of every mu of use and pesticide volume; (3) control bake out temperature can not make medicine decompose; (4) prevent that production and user of service poison; (5) clear and definite operation instruction.
Now embodiment of the present invention are exemplified below:
If produce the zeolite weeding compound fertilizer that 5 mu of ground are used, three elements (N: P
2O
5: K
2O) nutrients ratio is 9.2: 6: 10, executes ZnSO
40.5 kilogram/mu, weedicide Aunar draw rule and each 0.1kg/ mu of drag-line.
Its production technique is:
1, puts into shaking tray 50kg urea, and rotate shaking tray;
2, with 2kg water+0.5kg G-30027+0.5kg drag-line=3kg water drug solns, spray in the urea, make urea surface molten slightly.
3, add the 50kg zeolite, shake back also surplus a part of urea granules of discovery and zeolite powder a little while, spray into water 2kg again, then granulating and forming.
4, by travelling belt, enter dram, under the temperature that agricultural chemicals did not lose efficacy, dry, promptly become zeolite agricultural chemicals urea spheres.
5, again containing 30kgP
2O
5General calcium, 50kg
2The Repone K of O and 2.5kgZnSO
4, shake the ball oven dry and mix with above-mentioned zeolite agricultural chemicals urea spheres, promptly become corn weeding compound fertilizer, use for 5 mu of ground maize plantings.
Claims (5)
1, a kind of preparation technology of long-acting pesticide fertilizer is characterized in that with zeolite, urea and agricultural chemicals being that main raw material is formulated, and its proportioning is: zeolite: urea=3: 2～3, urea and pesticide volume are to decide according to every mu of requirement of Different Crop.
2, preparation technology according to claim 1 is characterized in that: granular urea is put into shaking tray, spray into the water of 6-10%, shake about 3 minutes, make the urea granules surface molten slightly.
3, according to claim 1 and 2 described preparation technologies, it is characterized in that: the zeolite powder above 100 orders evenly is sprinkling upon molten slightly urea granules surface, in the rotation of shaking tray, become the zeolite urea spheres, zeolite: urea=3: 2～3, when seeing when also having remaining zeolite powder and urea granules trying to get to the heart of a matter, can continue water spray, all attach zeolite to urea till, Total Water generally is no more than 10% of urea amount.
4, according to claim 3, it is characterized in that: the zeolite urea spheres enters dram by transport unit, temperature is controlled at urea is dissolved, and the zeolite urea spheres that then goes out tube can be used as a kind of material fertilizer blending in compound fertilizer.
5, according to claim 1 and 2, it is characterized in that the missible oil of agricultural chemicals or pulvis be dissolved in and become solution in the water, again this solution is sprinkling upon on the urea that rotates in the shaking tray, solution amount still is urea 6-10%, and urea amount and pesticide volume are to determine according to Different Crop mu expense, other operation is identical with claim 3 and 4, becomes zeolite at last and wraps up in urea, the long-acting pesticide-fertilizer product of agricultural chemicals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110951 CN1035991C (en) | 1992-09-25 | 1992-09-25 | Process of preparing long-acting mixture of pesticide and fertilizer using zeolite as carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110951 CN1035991C (en) | 1992-09-25 | 1992-09-25 | Process of preparing long-acting mixture of pesticide and fertilizer using zeolite as carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084501A true CN1084501A (en) | 1994-03-30 |
| CN1035991C CN1035991C (en) | 1997-10-01 |
Family
ID=4945060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110951 Expired - Fee Related CN1035991C (en) | 1992-09-25 | 1992-09-25 | Process of preparing long-acting mixture of pesticide and fertilizer using zeolite as carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035991C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056589C (en) * | 1996-07-17 | 2000-09-20 | 安徽省农业科学院土壤肥料研究所 | Method for preparing NH4 saturated zeolite capable of making undissolved phosphate in soil effective |
| WO2002083740A1 (en) * | 2001-04-13 | 2002-10-24 | Odore, Carlo | A urea-based nitrogenous fertilizer coated with zeolite |
| CN1098831C (en) * | 1999-09-30 | 2003-01-15 | 吉林大学 | Durable ammonium-type chemical fertilizer and its preparing process |
| CN102491857A (en) * | 2011-12-12 | 2012-06-13 | 新疆慧尔农业科技发展有限公司 | Long-acting slow-release urea and preparation method thereof |
| CN102838432A (en) * | 2012-09-27 | 2012-12-26 | 遵义市贵科科技有限公司 | Quick-acting loss-free nitrogenous fertilizer prepared by taking perlite as carrier |
| CN106518382A (en) * | 2016-11-08 | 2017-03-22 | 王兵 | Preparation method of artificial zeolite type sustained-release nitrogen fertilizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004003173A1 (en) * | 2004-01-22 | 2005-08-11 | Saurer Gmbh & Co. Kg | Fadenchangiereinrichtung for a winding device of a cheese-producing textile machine |
-
1992
- 1992-09-25 CN CN 92110951 patent/CN1035991C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056589C (en) * | 1996-07-17 | 2000-09-20 | 安徽省农业科学院土壤肥料研究所 | Method for preparing NH4 saturated zeolite capable of making undissolved phosphate in soil effective |
| CN1098831C (en) * | 1999-09-30 | 2003-01-15 | 吉林大学 | Durable ammonium-type chemical fertilizer and its preparing process |
| WO2002083740A1 (en) * | 2001-04-13 | 2002-10-24 | Odore, Carlo | A urea-based nitrogenous fertilizer coated with zeolite |
| CN102491857A (en) * | 2011-12-12 | 2012-06-13 | 新疆慧尔农业科技发展有限公司 | Long-acting slow-release urea and preparation method thereof |
| CN102838432A (en) * | 2012-09-27 | 2012-12-26 | 遵义市贵科科技有限公司 | Quick-acting loss-free nitrogenous fertilizer prepared by taking perlite as carrier |
| CN106518382A (en) * | 2016-11-08 | 2017-03-22 | 王兵 | Preparation method of artificial zeolite type sustained-release nitrogen fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035991C (en) | 1997-10-01 |
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| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |