CN1169756C - Liquid area synergist and its use - Google Patents
Liquid area synergist and its use Download PDFInfo
- Publication number
- CN1169756C CN1169756C CNB991225368A CN99122536A CN1169756C CN 1169756 C CN1169756 C CN 1169756C CN B991225368 A CNB991225368 A CN B991225368A CN 99122536 A CN99122536 A CN 99122536A CN 1169756 C CN1169756 C CN 1169756C
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- CN
- China
- Prior art keywords
- urea
- liquid
- synergist
- oil
- flow process
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- Expired - Fee Related
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Classifications
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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 present invention relates to a fertilizer additive, particularly to a liquid urea synergist and a use thereof. The liquid urea synergist is prepared by the following compounds by the volume percentage: 50 to 25% of N-methyl pyrrolidone and 75 to 50% of vegetable oil, wherein the N-methyl pyrrolidone and the vegetable oil in the proportion are uniformly mixed to be made into the liquid urea synergist, and the synergist and urea are mixed and prepared in the proportion of 0.2 to 0.8:100; a urease liquid-mixing process and a liquid-adding measuring process are additionally arranged before a urea liquid melting process in a urea production technology, and the synergist is added to the urea liquid for mixing granulation in the proportion of 0.1 to 0.8:100. The present invention has the advantages of good inhibiting effect of urease, film forming property and easy mixture and can be also added with a urea production technical process.
Description
The present invention relates to fertilizer additive, the specifically a kind of liquid-type in the nitrogenous fertilizer, area synergist and purposes of being applied to urease inhibiting effect.
The growth of crop, nitrogen nutrition are primary, and in chemical nitrogen fertilizer, urea accounts for about 60% of nitrogen fertilizer amount.But traditional production and fertilizing method make the urea fertilizer that applies in the soil owing to decomposed rapidly by the effect of urase, and crop has little time to absorb fully, has quite a few nitrogen to lose or volatilization with current.According to surveying and determination, its rate of loss can reach about 50%, and fertilizer efficiency period only has 35～50 days, and the nitrogen manure availability is extremely low, has also caused a large amount of losses of the energy, grows this with for a long time, has brought pollution to environment again.Prove that according to scientific worker's years of researches if enzyme and microbial host soil urease and nitrobacteria that nitrogen manure is played rapid decomposition and oxidation, they can make the nitrogen manure that applies in the soil carry out ammoniumization and nitrification rapidly.In order to stop or to delay this two processes, improve utilization rate of fertilizer, prolong fertilizer efficiency period, in recent years, existing a lot of research of fertilizer field at home and abroad and test are used, and use more product be aspect urease inhibitor with quinhydrones or the humic acids main raw material as urease inhibitor, wherein quinhydrones is an acicular crystals, to puddle sticking power not strong with fertilizer, and humic acids such as brown coal and urea are puddled with passable, but can not add the urea production process flow process.
In order to overcome above-mentioned deficiency, it is good to the purpose of this invention is to provide a kind of urease inhibiting effect, can stick to the fertiliser granulates surface equably, can add the liquid area synergist and the purposes of urea production process flow process again.
To achieve these goals, technical scheme of the present invention is: by volume per-cent is made up of 50～25%N-methyl-2-pyrrolidone and 75～50% vegetables oil, aforementioned proportion N-Methyl pyrrolidone and vegetables oil is mixed make;
Described vegetables oil is soya-bean oil, peanut oil, sunflower seed oil, Viscotrol C, rapeseed oil, sesame oil; Above-mentioned synergistic agent and urea are in 0.2～0.8: 100 volume/weight ratio is mixed; Before urea production process molten urea solution flow process, add urase and mix liquid and metering liquid feeding flow process, with above-mentioned synergistic agent in 0.1～0.8: mixing granulation in 100 the volume/volume ratio adding urine.
The present invention has following advantage:
1. good film-forming property is easy to puddle.The present invention is a formulation in liquid form, has sticking power, can stick to the fertiliser granulates surface equably, does the back film forming, is difficult for losing, and is difficult for loss.
2. urease inhibiting effect is good.Use the present invention, urase in the soil is had good inhibition effect, can stop nitrogen to lose or volatilization preferably, can improve nitrogen utilization efficiency 13～20% with current.
3. applied range.Selection economy of the present invention, safety, easy to use, nontoxic, harmless, pollution-free, can be mixed voluntarily by the peasant, can add the urea production process flow process again, be not subjected to condition restriction.
Below in conjunction with embodiment the present invention is described in further details.
Embodiment 1
By volume per-cent is made up of 25%N-methyl-2-pyrrolidone 25ml and 75% soya-bean oil 75ml; Aforementioned proportion N-Methyl pyrrolidone and soya-bean oil mixed make.The above-mentioned 8ml synergistic agent of making and urea 1000g are mixed evenly in 0.8: 100 ratio, use according to a conventional method.
Embodiment 2
By volume per-cent is made up of 30%N-methyl-2-pyrrolidone 30ml and 70% rapeseed oil 70ml; Aforementioned proportion N-Methyl pyrrolidone and rapeseed oil mixed make.The above-mentioned 2ml synergistic agent of making and urea 1000g are mixed evenly in 0.2: 100 ratio, use according to a conventional method.
Embodiment 3
By volume per-cent is made up of 30%N-methyl-2-pyrrolidone 30ml and 70% Viscotrol C 70ml; Aforementioned proportion N-Methyl pyrrolidone and Viscotrol C mixed make.The above-mentioned 5ml synergistic agent of making and urea 1000g are mixed evenly in 0.5: 100 ratio, use according to a conventional method.
Embodiment 4
By volume per-cent is made up of 50%N-methyl-2-pyrrolidone 50ml and 50% sunflower seed oil 50ml; Aforementioned proportion N-Methyl pyrrolidone and sunflower seed oil mixed make.The above-mentioned synergistic agent of making is directly joined the urea production process flow process, before urea production process molten urea solution flow process, adds urase and mix liquid and metering liquid feeding flow process, with above-mentioned 2ml synergistic agent by mixing granulation in 0.2: 100 the ratio adding 1000ml urine.
Embodiment 5
By volume per-cent is made up of 40%N-methyl-2-pyrrolidone 40ml and 60% sesame oil 60ml; Aforementioned proportion N-Methyl pyrrolidone and sesame oil mixed make.The synergistic agent of making is directly joined the urea production process flow process, before urea production process molten urea solution flow process, adds urase and mix liquid and metering liquid feeding flow process, with above-mentioned 7ml synergistic agent by mixing granulation in 0.7: 100 the ratio adding 1000ml urine.
Claims (4)
1. liquid area synergist, it is characterized in that: by volume per-cent is made up of 50～25%N-methyl-2-pyrrolidone and 75～50% vegetables oil, aforementioned proportion N-Methyl pyrrolidone and vegetables oil is mixed make.
2. according to the described liquid area synergist of claim 1, it is characterized in that: described vegetables oil is soya-bean oil, peanut oil, sunflower seed oil, Viscotrol C, rapeseed oil, sesame oil.
3. one kind is used for the synergy of urea fertilizer according to the described liquid area synergist of claim 1, and above-mentioned synergistic agent and urea are in 0.2～0.8: 100 volume/weight ratio is mixed.
4. one kind is used for the urea production process flow process according to the described liquid area synergist of claim 1, before urea production process molten urea solution flow process, add urase and mix liquid and metering liquid feeding flow process, above-mentioned synergistic agent is added mixing granulation in the urine by 0.1～0.8: 100 volume/volume than side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991225368A CN1169756C (en) | 1999-11-17 | 1999-11-17 | Liquid area synergist and its use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991225368A CN1169756C (en) | 1999-11-17 | 1999-11-17 | Liquid area synergist and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1256259A CN1256259A (en) | 2000-06-14 |
| CN1169756C true CN1169756C (en) | 2004-10-06 |
Family
ID=5282537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991225368A Expired - Fee Related CN1169756C (en) | 1999-11-17 | 1999-11-17 | Liquid area synergist and its use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1169756C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344588C (en) * | 2004-12-03 | 2007-10-24 | 中国科学院沈阳应用生态研究所 | Urease/nitrating inhibitor composite slow releasing urea and its preparing method |
| CN108530111A (en) * | 2018-03-22 | 2018-09-14 | 何朋飞 | A kind of diversification urea production process |
| CN108503394A (en) * | 2018-03-22 | 2018-09-07 | 何朋飞 | A kind of diversification urea production process |
| CN108849885A (en) * | 2018-08-07 | 2018-11-23 | 广州市新景象生态科技有限公司 | The agricultural synergist and preparation method thereof of one kind of multiple vegetable oil combinations |
| CN111285734A (en) * | 2020-03-12 | 2020-06-16 | 徐建军 | Method for improving utilization rate of fertilizer for crops |
-
1999
- 1999-11-17 CN CNB991225368A patent/CN1169756C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1256259A (en) | 2000-06-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 Termination date: 20131117 |