CN101792357A - Modified rosin coated fertilizer and preparation method thereof - Google Patents
Modified rosin coated fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN101792357A CN101792357A CN201010123951A CN201010123951A CN101792357A CN 101792357 A CN101792357 A CN 101792357A CN 201010123951 A CN201010123951 A CN 201010123951A CN 201010123951 A CN201010123951 A CN 201010123951A CN 101792357 A CN101792357 A CN 101792357A
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- fertilizer
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- coating
- rosin
- ester gum
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 130
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 title claims abstract description 35
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 title claims abstract description 35
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000000576 coating method Methods 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 239000004202 carbamide Substances 0.000 claims abstract description 39
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 25
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 24
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 12
- 238000005886 esterification reaction Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 claims abstract description 7
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 14
- 235000011187 glycerol Nutrition 0.000 claims description 11
- 230000032050 esterification Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 235000015097 nutrients Nutrition 0.000 abstract description 37
- 239000002689 soil Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 9
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 3
- 125000005456 glyceride group Chemical group 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 37
- 150000001875 compounds Chemical class 0.000 description 31
- 239000002131 composite material Substances 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000012010 growth Effects 0.000 description 4
- 235000021049 nutrient content Nutrition 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 235000014692 zinc oxide Nutrition 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- PNNCWTXUWKENPE-UHFFFAOYSA-N [N].NC(N)=O Chemical compound [N].NC(N)=O PNNCWTXUWKENPE-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000618 nitrogen fertilizer Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention relates to the technical field of coated fertilizers, in particular to a coated fertilizer prepared from natural plant rosin and a preparation method thereof. The method comprises the following steps of: (1) leading rosin and glycerol to undergo esterification reaction under the catalytic action of zinc oxide to prepare rosin glyceride; (2) placing fertilizer particles into a coating machine, setting the rotating speed at 200-250rpm, setting the temperature at 25-30 DEG C and starting the coating machine and an air heater to preheat urea particles; then spraying talcum powder, fertilizer adhesive and the coating liquid of the rosin glyceride with the weight ratio of 1:1-1.5:1-2.5 on the surfaces of the rolled fertilizer particles; and running the coating machine for 30-40 minutes to obtain the coated fertilizer with the coating coverage rate of 5-8 percent. The coated fertilizer prepared by using the method can effectively control nutrient release and reduce the loss of effective components in the fertilizer, has flexibility and is easy for decomposition in soil without pollution.
Description
Technical field
The present invention relates to the coated fertilizer technical field, particularly a kind of employing natural plants rosin is made coated fertilizer and preparation method thereof.
Background technology
This season utilization ratio of China's chemical fertilizer is lower, and nitrogenous fertilizer is 30%～35%, phosphate fertilizer is 10%～25%, potash fertilizer is 35%～50%.A large amount of losses of nitrogenous fertilizer cause some areas face of land eutrophication to occur, and underground water and the nitrate nitrogen content of doing in the object exceed standard, problem of environmental pollution such as nitrous oxide emission amount increase in the atmosphere.Nutrient after coated fertilizer (coated release fertilizer) is manured into soil in the fertilizer can slowly discharge, to satisfy the plant growth needs.
At home and abroad in the research of coated fertilizer, useful sulphur and multiple nutrient are mixed into coated fertilizer, adopt the method for sealing agent (paraffin) spraying, thereby reduce the release of nutrient.Because it is bigger that the organism material that uses is difficult for inorganics (sulphur) fragility of degraded and use, there is the problem of transportation aspect.
Useful alkyd based resin or polyurethane kind resin are coated fertilizer; Useful thermoplastic resin (polyethylene) is dissolved in the chlorinated hydrocarbon, makes coated fertilizer.Because these coated fertilizers decompose relatively difficulty in soil, cause white environmental pollution easily, its application prospect is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of modified rosin coated fertilizer and preparation method thereof, the coated fertilizer of making can discharge nutrient and control effectively, reduces effective ingredient loss in the fertilizer, and coated fertilizer has flexibility, easily decomposition, pollution-free in soil.
Realize that the technical scheme that above-mentioned purpose of the present invention is taked is:
Described coated fertilizer is, the surface of fertiliser granulates is coating the coating that one deck talcum powder, fertilizer tackiness agent and ester gum are formed, and the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is that 1: 1～1.5: 1～2.5 coating fraction of coverage are 5%～8%.(coating fraction of coverage=(coated fertilizer weight-by weight of fertilizer) ÷ coated fertilizer weight * 100%.〕
Described ester gum be rosin under zinc oxide catalysis with glycerine generation esterification, the rosin derivative that obtains.
The preparation method of modified rosin coated fertilizer of the present invention is as follows:
1. rosin under catalytic action of zinc oxide with glycerine generation esterification, make ester gum;
2. accurately take by weighing fertiliser granulates and put into coating machine, setting rotating speed is 200～250 rev/mins, temperature is 25～30 ℃, starts coating machine and calorifier preheating urea granules, and the coating liquid with talcum powder, fertilizer tackiness agent and ester gum is sprayed onto the fertiliser granulates surface of rolling then;
3. the coating machine operation is 30～40 minutes, obtains coated fertilizer of the same size.
The weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1～1.5: 1～2.5 in the coating liquid, and the coating fraction of coverage is 5%～8%.
Rosin is a kind of reproducible natural resin, the rosin molecular structure has active group---hydroxyl and conjugated double bond, with rosin is raw material, under catalytic action of zinc oxide with glycerine generation esterification, can obtain important rosin derivative---ester gum, its acid number reduces, thermostability improves, and has characteristics such as water-fast, acidproof, alkaline-resisting.
Coated fertilizer of the present invention is to be one of raw material with rosin, handles through chemical reaction and coating process, makes to discharge coated fertilizer (coatedfertilizer) that control effectively, reduces effective ingredient loss in the fertilizer and preparation method thereof to nutrient.
The invention has the beneficial effects as follows: adopting rosin is that raw material makes ester gum, mixes as coated fertilizer with other raw material, has good flexibility, has solved the problem of conventional coated fertilizer transportation aspect; Coating of the present invention is easily degraded, and easily decomposes in soil, has solved white environmental pollution problems.This coated fertilizer can discharge fertilizer nutrient and control effectively, reduces effective ingredient loss in the fertilizer.
Ester gum coated carbamide Performance Detection:
1. test employing coated carbamide (Kunming University of Science and Technology's development) and common urea (production of Yun Hua company) are two kinds, and test basin specification is the stearic plastic tank of 22cm suitable for reading, end opening 12cm, high 17cm.Get every part of 5g of coated carbamide and common urea, each 5 parts, every part binds up with gauze, and places 10cm place under the soil respectively.
2. during observing the nutrient solubility rate, keep the soil moisture at 15～25 ℃.The mensuration of nutrient adopts " weighting method ", promptly measures the weight of every part of fertilizer at regular intervals, repeats 2 times, converses effective nitrogen composition then, and calculates the initial stage solubility rate and the plant recovery of nutrient of nutrient.
Total nutrient content * 100% in the amount of nutrients/fertilizer of initial stage solubility rate=24h stripping
3. according to LOGISTIC growth curves model (N=N
O[1-exp (kt)]) simulate, calculate the release period of nutrient.
Performance perameter under ester gum coated carbamide " field production " condition:
During the coating fraction of coverage C=5.0% of ester gum coated carbamide, soil moisture content changes about 30%:
1. the utilization ratio of coated carbamide: the ester gum coated carbamide improves 28.5% than the utilization ratio of common urea nitrogen.
2. the nutrient release property of coated carbamide: ester gum coated carbamide just solubility rate is 11.4%, and common urea just solubility rate is 78.3%.
3. the fertilizer releasing period of coated carbamide: ester gum coated carbamide fertilizer releasing period be 164 (my god).
Description of drawings
The process flow sheet of Fig. 1 modified rosin;
Fig. 2 process flow sheet of the present invention.
Embodiment
Embodiment 1:
Performance perameter under ester gum coated carbamide " potted plant " condition:
1, the coated fertilizer prescription is formed:
Form by rosin, zinc oxide, glycerine, talcum powder, common urea, tackiness agent.
2, coating process is handled:
1. rosin under catalytic action of zinc oxide with glycerine generation esterification, rosin derivative---ester gum.
2. accurately take by weighing certain amount of urea (Mo) and put into coating machine, after setting rotating speed (200～250 rev/mins) and the temperature (25～30 ℃), start coating machine and calorifier preheating urea granules, the coating liquid that talcum powder, fertilizer tackiness agent and ester gum are formed is sprayed onto the urea granules surface of rolling then, and the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1.5: 2.
3. after 30 minutes, close coating machine, coated carbamide is taken out weigh (M), again coated carbamide is sieved, promptly obtain coated carbamide of the same size.
Coating fraction of coverage C=(M-Mo) the ÷ M of coated carbamide.
3, Performance Detection:
1. pot experiment employing ester gum coated carbamide (Kunming University of Science and Technology's development) and common urea (production of Yun Hua company) are two kinds, and test basin specification is the stearic plastic tank of 22cm suitable for reading, end opening 12cm, high 17cm.Get every part of 5g of coated carbamide and common urea, each 5 parts, every part binds up with gauze, and places 10cm place under the red soil respectively, and raise crop is a tobacco.
2. during observing the nutrient solubility rate, keep the soil moisture at 15-25 ℃.The mensuration of nutrient adopts " weighting method ", promptly measures the weight of every part of fertilizer at regular intervals, repeats 2 times, converses effective nitrogen composition then, and calculates the initial stage solubility rate and the plant recovery of nutrient of nutrient.
Total nutrient content * 100% in the amount of nutrients/fertilizer of initial stage solubility rate=24h stripping
3. according to LOGISTIC growth curves model (N=N
O[1-exp (kt)]) simulate, calculate the release period of nutrient.
4, performance perameter:
During ester gum coated carbamide coating fraction of coverage C=5.0%, soil moisture content changes about 33%:
1. the utilization ratio of coated carbamide: the ester gum coated carbamide improves 26.6% than the utilization ratio of common urea nitrogen.
2. the nutrient release property of coated carbamide: ester gum coated carbamide just solubility rate is 12.9%, and common urea just solubility rate is 78.3%.
3. the fertilizer releasing period of coated carbamide: ester gum coated carbamide fertilizer releasing period be 146 (my god).
Embodiment 2:
Performance perameter under ester gum coated compound fertilizer " potted plant " condition:
1, the coated fertilizer prescription is formed:
Form by rosin, zinc oxide, glycerine, talcum powder, common composite fertilizer 1, tackiness agent.
2, coating process is handled:
1. rosin under catalytic action of zinc oxide with glycerine generation esterification, rosin derivative---ester gum.
2. accurately take by weighing a certain amount of composite fertilizer 1 (Mo) and put into coating machine (N: P wherein
2O
5: K
2O=1: 1.74: 3.85), after setting rotating speed (200～250 rev/mins) and the temperature (25～30 ℃), start coating machine and calorifier preheating compound fertilizer granules, the coating liquid that talcum powder, fertilizer tackiness agent and ester gum are formed is sprayed onto the compound fertilizer granules surface of rolling then, and the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1.5: 2.5.
3. after 30 minutes, close coating machine, coated compound fertilizer is taken out weigh (M), again coated compound fertilizer is sieved, promptly obtain coated compound fertilizer of the same size.
Coating fraction of coverage C=(M-Mo) the ÷ M of coated compound fertilizer.
3, Performance Detection:
1. pot experiment employing ester gum coated compound fertilizer (Kunming University of Science and Technology's development) and common composite fertilizer (production of Yun Hua company) are two kinds, and test basin specification is the stearic plastic tank of 22cm suitable for reading, end opening 12cm, high 17cm.Get coated compound fertilizer and every part of 5g of common composite fertilizer, each 5 parts, every part binds up with gauze, and places 10cm place under the red soil respectively, and raise crop is a tobacco.
2. during observing the nutrient solubility rate, keep the soil moisture at 15-25 ℃.The mensuration of nutrient adopts " weighting method ", promptly measures the weight of every part of fertilizer at regular intervals, repeats 2 times, converses effective nutrient composition then, and calculates the initial stage solubility rate and the plant recovery of nutrient of nutrient.
Total nutrient content * 100% in the amount of nutrients/fertilizer of initial stage solubility rate=24h stripping
3. according to LOGISTIC growth curves model (N=N
O[1-exp (kt)]) simulate, calculate the release period of nutrient.
4, performance perameter:
During ester gum coated compound fertilizer coating fraction of coverage C=5.0%, soil moisture content changes about 33%:
1. the utilization ratio of coated compound fertilizer: the ester gum coated compound fertilizer improves 15.2% than the plant recovery of nutrient of common composite fertilizer.
2. the nutrient release property of coated compound fertilizer: ester gum coated compound fertilizer just solubility rate is 0%, and common composite fertilizer just solubility rate is 10.1%.
3. the fertilizer releasing period of coated compound fertilizer: ester gum coated carbamide fertilizer releasing period be 186 (my god).
Embodiment 3:
Performance perameter under ester gum coated compound fertilizer " potted plant " condition:
1, the coated fertilizer prescription is formed:
Form by rosin, zinc oxide, glycerine, talcum powder, common composite fertilizer 2, tackiness agent.
2, coating process is handled:
1. rosin under catalytic action of zinc oxide with glycerine generation esterification, rosin derivative---ester gum.
2. accurately take by weighing a certain amount of composite fertilizer 2 (Mo) and put into coating machine (N: P wherein
2O
5: K
2O=1: 1.13: 2.61), after setting rotating speed (200～250 rev/mins) and the temperature (25～30 ℃), start coating machine and calorifier preheating compound fertilizer granules, the coating liquid that talcum powder, fertilizer tackiness agent and ester gum are formed is sprayed onto the compound fertilizer granules surface of rolling then, and the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1.5: 2.5.
3. after 30 minutes, close coating machine, coated compound fertilizer is taken out weigh (M), again coated compound fertilizer is sieved, promptly obtain coated compound fertilizer of the same size.
Coating fraction of coverage C=(M-Mo) the ÷ M of coated compound fertilizer.
3, Performance Detection:
1. pot experiment employing ester gum coated compound fertilizer (Kunming University of Science and Technology's development) and common composite fertilizer (production of Yun Hua company) are two kinds, and test basin specification is the stearic plastic tank of 22cm suitable for reading, end opening 12cm, high 17cm.Get coated compound fertilizer and every part of 5g of common composite fertilizer, each 5 parts, every part binds up with gauze, and places 10cm place under the red soil respectively, and raise crop is a tobacco.
2. during observing the nutrient solubility rate, keep the soil moisture at 15-25 ℃.The mensuration of nutrient adopts " weighting method ", promptly measures the weight of every part of fertilizer at regular intervals, repeats 2 times, converses effective constituent then, and calculates the initial stage solubility rate and the plant recovery of nutrient of nutrient.
Total nutrient content * 100% in the amount of nutrients/fertilizer of initial stage solubility rate=24h stripping
3. according to LOGISTIC growth curves model (N=N
O[1-exp (kt)]) simulate, calculate the release period of nutrient.
4, performance perameter:
During ester gum coated compound fertilizer coating fraction of coverage C=8.0%, soil moisture content changes about 30%:
1. the utilization ratio of coated compound fertilizer: the ester gum coated compound fertilizer improves 13.8% than the utilization ratio of common composite fertilizer.
2. the nutrient release property of coated compound fertilizer: ester gum coated compound fertilizer just solubility rate is 0%, and common composite fertilizer just solubility rate is 9.8%.
3. the fertilizer releasing period of coated compound fertilizer: ester gum coated compound fertilizer fertilizer releasing period be 227 (my god).
Claims (4)
1. modified rosin coated fertilizer, it is characterized in that: the surface of fertiliser granulates is coating the coating that one deck talcum powder, fertilizer tackiness agent and ester gum are formed, the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1～1.5: 1～2.5, the coating fraction of coverage is 5%～8%, coating fraction of coverage=(coated fertilizer weight-by weight of fertilizer) ÷ coated fertilizer weight * 100%.
2. by the described modified rosin coated fertilizer of claim 1, it is characterized in that: ester gum be rosin under zinc oxide catalysis with glycerine generation esterification, the rosin derivative that obtains.
3. the preparation method of a modified rosin coated fertilizer is characterized in that:
1. rosin under catalytic action of zinc oxide with glycerine generation esterification, make ester gum;
2. accurately take by weighing fertiliser granulates and put into coating machine, setting rotating speed is 200～250 rev/mins, temperature is 25～30 ℃, starts coating machine and calorifier preheating urea granules, and the coating liquid with talcum powder, fertilizer tackiness agent and ester gum is sprayed onto the fertiliser granulates surface of rolling then;
3. the coating machine operation is 30～40 minutes, obtains coated fertilizer of the same size.
4. by the preparation method of the described modified rosin coated fertilizer of claim 3, it is characterized in that: the weight ratio of talcum powder, fertilizer tackiness agent and ester gum is 1: 1～1.5: 1～2.5 in the coating liquid, and the coating fraction of coverage is 5%～8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123951A CN101792357A (en) | 2010-03-15 | 2010-03-15 | Modified rosin coated fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123951A CN101792357A (en) | 2010-03-15 | 2010-03-15 | Modified rosin coated fertilizer and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101792357A true CN101792357A (en) | 2010-08-04 |
Family
ID=42585305
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010123951A Pending CN101792357A (en) | 2010-03-15 | 2010-03-15 | Modified rosin coated fertilizer and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108980A (en) * | 2014-06-05 | 2014-10-22 | 铜陵市银树生态养殖有限责任公司 | Rosin glyceride-coated fertilizer and preparation method thereof |
| CN105237237A (en) * | 2015-11-17 | 2016-01-13 | 梅庆波 | Preparation method of organic slow-release fertilizer for house plants |
| WO2017206743A1 (en) * | 2016-05-31 | 2017-12-07 | 湖北富邦科技股份有限公司 | Method for rapid manufacturing of novel micronutrient-containing urea |
| CN107586182A (en) * | 2016-07-08 | 2018-01-16 | 元江呈达智能配肥有限公司 | A kind of solanaceous vegetables special-purpose control-release fertilizer and preparation method thereof |
-
2010
- 2010-03-15 CN CN201010123951A patent/CN101792357A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 唐仁: "粉状磷肥制粒肥", 《农业科学实验》 * |
| 施卫省，等: "松香甘油酯包膜材料对尿素缓释性的影响", 《农业工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108980A (en) * | 2014-06-05 | 2014-10-22 | 铜陵市银树生态养殖有限责任公司 | Rosin glyceride-coated fertilizer and preparation method thereof |
| CN105237237A (en) * | 2015-11-17 | 2016-01-13 | 梅庆波 | Preparation method of organic slow-release fertilizer for house plants |
| WO2017206743A1 (en) * | 2016-05-31 | 2017-12-07 | 湖北富邦科技股份有限公司 | Method for rapid manufacturing of novel micronutrient-containing urea |
| CN107586182A (en) * | 2016-07-08 | 2018-01-16 | 元江呈达智能配肥有限公司 | A kind of solanaceous vegetables special-purpose control-release fertilizer and preparation method thereof |
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Application publication date: 20100804 |