CN103011942A - Method for producing chlorine-based compound fertilizer through hydrochloric acid method - Google Patents
Method for producing chlorine-based compound fertilizer through hydrochloric acid method Download PDFInfo
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- CN103011942A CN103011942A CN2012105885642A CN201210588564A CN103011942A CN 103011942 A CN103011942 A CN 103011942A CN 2012105885642 A CN2012105885642 A CN 2012105885642A CN 201210588564 A CN201210588564 A CN 201210588564A CN 103011942 A CN103011942 A CN 103011942A
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- based compound
- hydrochloric acid
- compound fertilizer
- fertilizer
- chlorine
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Abstract
The invention discloses a method for producing a chlorine-based compound fertilizer through a hydrochloric acid method, which comprises the following steps: adding ammonium phosphate, potassium chloride and urea into hydrochloric acid, and evenly stirring to prepare a suspension; feeding the suspension into a tubular reactor, and performing neutralization reaction with ammonia gas to prepare slurry; feeding the slurry into a granulator, and granulating; and drying the granules, screening, and cooling to obtain the finished product. The method has the advantages of simple preparation process, energy saving, consumption reduction and low production cost; the product is high in granule strength, less prone to efflorescence and easy to store; and the produced fertilizer is balanced in nutrient release and wide in the regulating range of each nutrient. Thus, the fertilizer can be produced in a targeted manner.
Description
Technical field
The present invention relates to a kind of salt acid system and produce the method for chlorine-based compound fertilizer.
Background technology
The nitrogenous source of chloro composite fertilizer mainly is to provide with ammonium chloride at present, adds other raw material, adopts blending method production, makes the remarkable chemical reaction of nothing in mixing process by simple mechanically mixing.Not only granule strength is low to adopt the product of this explained hereafter, and easily efflorescence be difficult for storing, and production cost is high.
Summary of the invention
The object of the present invention is to provide a kind of salt acid system to produce the method for chlorine-based compound fertilizer.
In order to realize the foregoing invention purpose, the method that salt acid system provided by the present invention is produced chlorine-based compound fertilizer may further comprise the steps: ammonium phosphate, Repone K and urea are joined in the hydrochloric acid stir, make outstanding mixed liquid; Then will hang that mixed liquid is sent into tubular reactor and ammonia carries out neutralization reaction, make slip; Slip is sent into again and carried out granulation in the tablets press, institute is finished product after making material grain drying, screening, cooling.
By weight phosphoric acid ammonium 1-45 part, Repone K 1-45 part, urea 0-30 part and HCl 5-45 part in the described outstanding mixed liquid.
The present invention adopts hydrochloric acid as liquid phase carrier; the interpolation part is phosphorous, the raw material of potassium generates the outstanding mixed liquid of homogeneous phase through stirring; make slip by tubular reactor and gas ammonia reaction after the pump supercharging, slip is carried out granulation get final product to get product in tablets press, granulation institute heat requirement is from HCL and NH
3Exothermic heat of reaction, HCL and NH
3The reaction liberated heat can make the moisture gasification, thereby has reduced energy consumption.The present invention need not to buy finished product ammonium chloride, but adopts the direct and ammonia gas react of hydrochloric acid, has improved throughput, has reduced production cost.
The invention has the advantages that:
(1) fertilizer of producing possesses the chloro composite fertilizer and strengthens the advantages such as photosynthesis, and each nutrient discharges more balanced simultaneously;
(2) regulation range of each nutrient is wider in the fertilizer, and fertilizer is with strong points, can according to the relation of the nutritive equilibrium between soil, crop, the fertilizer, produce the fertilizer that is suitable for Different Crop, to satisfy crop to the demand of nutritive element;
(3) preparation technology is simple, and energy-saving and cost-reducing, production cost is low;
(4) product particle intensity is high, is difficult for efflorescence, easily stores.
Further set forth the method that salt acid system provided by the present invention is produced chlorine-based compound fertilizer below by embodiment, these embodiment only are used for illustrating realizability and the operability of described method, are not limiting the scope of the invention.
Embodiment
Embodiment 1 preparation nutrient (nitrogen-phosphorus-potassium) is the chlorine-based compound fertilizer of 17-17-8
With ammonium phosphate (P
2O
5: 44% N:11%) 20 kg, Repone K (K
2O 〉=60%) to join 94 kg mass concentrations be in 30% the hydrochloric acid for 13.3 kg and urea 6.5kg, stirs under the normal temperature and pressure to make it in 30-40 minute evenly, makes outstanding mixed liquid; Then will hang mixed liquid through pump delivery to tubular reactor, and pass into 13.1 kg ammonias in the tubular reactor and carry out neutralization reaction, make slip after reaction is finished; Again slip is sent into and carried out granulation in the tablets press, be finished product after material grain drying, screening, the cooling.
Embodiment 2 preparation nutrients (nitrogen-phosphorus-potassium) are the chlorine-based compound fertilizer of 18-16-6
With ammonium phosphate (P
2O
5: 44% N:11%) 36.4 kg, Repone K (K
2O 〉=60%) to join 104 kg mass concentrations be in 30% the hydrochloric acid for 10kg and urea 7.2kg, stirs under the normal temperature and pressure to make it in 30-40 minute evenly, makes outstanding mixed liquid; Then will hang mixed liquid through pump delivery to tubular reactor, and pass into the 14.55kg ammonia in the tubular reactor and carry out neutralization reaction, make slip after reaction is finished; Again slip is sent into and carried out granulation in the tablets press, be finished product after material grain drying, screening, the cooling.
Embodiment 3 preparation nutrients (nitrogen-phosphorus-potassium) are the chlorine-based compound fertilizer of 18-20-7
With ammonium phosphate (P
2O
5: 44% N:11%) 40.45 kg, Repone K (K
2O 〉=60%) to join 77.11 kg mass concentrations be in 30% the hydrochloric acid for 11.67 kg and urea 8.97kg, stirs under the normal temperature and pressure to make it in 30-40 minute evenly, makes outstanding mixed liquid; Then will hang mixed liquid through pump delivery to tubular reactor, and pass into 10.78 kg ammonias in the tubular reactor and carry out neutralization reaction, make slip after reaction is finished; Again slip is sent into and carried out granulation in the tablets press, be finished product after material grain drying, screening, the cooling.
The consumption of ammonia among the present invention is so that the acid in the outstanding mixed liquid is limited by complete neutralization, and ammonia should be slightly excessive during actually operating.
Above-mentioned three the different embodiment that press nutrient (nitrogen-phosphorus-potassium) content, only be to the enforceable explanation of the method for the invention, be not to limit the present invention on the chlorine-based compound fertilizer that to produce above-mentioned three kinds of nutrients, on the contrary, those skilled in the art are by proportion relation and the production stage of raw material provided by the present invention, the consumption that changes each raw material can be produced the different chlorine-based compound fertilizers of multiple nutrient (nitrogen-phosphorus-potassium) content, illustrates no longer one by one at this.
Claims (2)
1. a salt acid system is produced the method for chlorine-based compound fertilizer, it is characterized in that may further comprise the steps: ammonium phosphate, Repone K and urea are joined in the hydrochloric acid stir, make outstanding mixed liquid; Then will hang that mixed liquid is sent into tubular reactor and ammonia carries out neutralization reaction, make slip; Slip is sent into again and carried out granulation in the tablets press, institute is finished product after making material grain drying, screening, cooling.
2. salt acid system as claimed in claim 1 is produced the method for chlorine-based compound fertilizer, it is characterized in that in the described outstanding mixed liquid by mass phosphoric acid ammonium 1-45 part, Repone K 1-45 part, urea 0-30 part and HCl 5-45 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105885642A CN103011942A (en) | 2012-12-31 | 2012-12-31 | Method for producing chlorine-based compound fertilizer through hydrochloric acid method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105885642A CN103011942A (en) | 2012-12-31 | 2012-12-31 | Method for producing chlorine-based compound fertilizer through hydrochloric acid method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103011942A true CN103011942A (en) | 2013-04-03 |
Family
ID=47961110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105885642A Pending CN103011942A (en) | 2012-12-31 | 2012-12-31 | Method for producing chlorine-based compound fertilizer through hydrochloric acid method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311341A (en) * | 2014-10-21 | 2015-01-28 | 金正大生态工程集团股份有限公司 | Basic fertilizer granulation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078226A (en) * | 1993-04-19 | 1993-11-10 | 山东省临沂市化工总厂 | The production method of potassium sulphate type ternary composite fertilizer |
| JP2001232122A (en) * | 2000-02-24 | 2001-08-28 | Aerland:Kk | Gas exhausting port filter and its utilization |
| CN101041600A (en) * | 2007-03-16 | 2007-09-26 | 阴高鹏 | Humic acid composite material and preparation method thereof |
| CN102126742A (en) * | 2011-01-20 | 2011-07-20 | 山东金正大生态工程股份有限公司 | Method for producing chloride-based compound fertilizer and co-producing gypsum through decomposing phosphorite with hydrochloric acid |
| CN102206112A (en) * | 2010-03-31 | 2011-10-05 | 王茂国 | Ammoniation-granulation process for producing potassium sulfate composite fertilizer |
-
2012
- 2012-12-31 CN CN2012105885642A patent/CN103011942A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078226A (en) * | 1993-04-19 | 1993-11-10 | 山东省临沂市化工总厂 | The production method of potassium sulphate type ternary composite fertilizer |
| JP2001232122A (en) * | 2000-02-24 | 2001-08-28 | Aerland:Kk | Gas exhausting port filter and its utilization |
| CN101041600A (en) * | 2007-03-16 | 2007-09-26 | 阴高鹏 | Humic acid composite material and preparation method thereof |
| CN102206112A (en) * | 2010-03-31 | 2011-10-05 | 王茂国 | Ammoniation-granulation process for producing potassium sulfate composite fertilizer |
| CN102126742A (en) * | 2011-01-20 | 2011-07-20 | 山东金正大生态工程股份有限公司 | Method for producing chloride-based compound fertilizer and co-producing gypsum through decomposing phosphorite with hydrochloric acid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311341A (en) * | 2014-10-21 | 2015-01-28 | 金正大生态工程集团股份有限公司 | Basic fertilizer granulation method |
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| PB01 | Publication | ||
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Application publication date: 20130403 |