CN102206112A - Ammoniation-granulation process for producing potassium sulfate composite fertilizer - Google Patents
Ammoniation-granulation process for producing potassium sulfate composite fertilizer Download PDFInfo
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- CN102206112A CN102206112A CN2010101426003A CN201010142600A CN102206112A CN 102206112 A CN102206112 A CN 102206112A CN 2010101426003 A CN2010101426003 A CN 2010101426003A CN 201010142600 A CN201010142600 A CN 201010142600A CN 102206112 A CN102206112 A CN 102206112A
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Abstract
The invention discloses an ammoniation-granulation process for producing a potassium sulfate composite fertilizer. The process is simple, enables low cost and is suitable for industrial production. Raw materials used for producing the product comprise sulfuric acid, potassium chloride, ammonium chloride, monoammonium phosphate, urea, water and liquefied ammonia. The potassium sulfate composite fertilizer produced in the invention has the characteristics of uniform granulation, bright color, stable quality, abundant nutrient and capacity of easily dissolving and being absorbed by crops, and particularly has the characteristic of safety for seeds as seed manure. The fertilizer is applicable to various soils and to a plurality of crops and economic crops like wheat, corn, fruit, peanuts, vegetable, legume, flowers and fruit trees, and is particularly applicable to fruits, tobacco and the like, which are sensitive to chlorine. The fertilizer can be used as a base fertilizer, seed manure, or an additional fertilizer, or can be used for manuring with water. Used together with other fertilizers, the fertilizer has an improved utilization rate and a better effect.
Description
Affiliated technical field:
Product of the present invention belongs to the chemical fertilizer field.
Background technology:
Product of the present invention is a kind of chemical fertilizer that contains multiple nutrient, low temperature conversion method spray granulating Technology is adopted in the production of present domestic S-based compound fertilizer mostly, but because the product nitrogen content of this explained hereafter is not high, high nitrogen-containing can only reach about 10%, can not satisfy the demand of farm crop to nitrogen, and the chlorine-based compound fertilizer that traditional drum granulating method is produced, because chloride ion content is too high, fear-chlorion crop can not use, and the life-time service chlorine-based compound fertilizer causes soil compaction easily simultaneously.The ammoniation-granulation compound potassium sulfate fertilizer is to adopt ammonification, secondary dechlorination granulation production technique, principle is that Repone K and sulfuric acid are added reactive tank heating and reaction under certain condition, the HCl gas of overflowing can make certain density hydrochloric acid after water absorbs, the sal enixum of generation mixes the back and forms nitration mixture with phosphorus ammonia slip.This nitration mixture and synthetic ammonia are reacted at tubular reactor in proportion, and generation composite fertilizer slip directly sprays into and generates nitrogen, phosphorus, a certain proportion of S-based compound fertilizer of potassium in the tablets press.Product of the present invention have granulation evenly, bright in color, steady quality, nutrient foot, easily dissolving and by characteristics such as crop absorptions, it is comparatively safe to seed particularly to make seed manure, multiple kinds of crops and cash crop such as suitable all kinds of soil and wheat, corn, melon and fruit, peanut, vegetables, beans, flowers, fruit tree are specially adapted to fear-chlorion crops such as melon and fruit, tobacco.Be applicable to and do base manure, seed manure, topdress, dash and execute that cooperate other fertilizer to use and can improve utilization rate of fertilizer, effect is better.Product of the present invention shows in field test results: can stimulate the farm crop root growth, obviously improve the photosynthetic performance of farm crop, long-term application can improve guarantor's fertilizer, the water retention capacity of soil.
Summary of the invention:
The problem that the present invention mainly solves provides a kind of method of suitability for industrialized production ammoniation-granulation compound potassium sulfate fertilizer, and this method technology is simple, the nitrogen content height, and oxygen divides complete, generally is suitable for field crop and cash crop, is specially adapted to fear-chlorion crops such as melon and fruit, tobacco.Producing the raw material that this product uses has: (agricultural is with 8 parts in N8-11%, P2O5 〉=44-49%), urea (agricultural with N 〉=46%, H2O≤0.5%), 12 parts in water, 15 parts of (industrial ammonia content 〉=98% of liquefied ammonia for 10 parts of 10 parts of sulfuric acid 20 parts (industrial 98 ± 0.5%), Repone K 20 parts (industrial 95 ± 0.5%), ammonium chlorides (agricultural with K2O 〉=60%, H2O≤2%), monoammonium phosphates; ).
A kind of production method of ammoniation-granulation compound potassium sulfate fertilizer, its beneficial effect is: technology is simple, and cost is lower, is suitable for suitability for industrialized production.
Embodiment:
Embodiment:
The first step: prepare phosphor ammonium slurry earlier: with 10 parts of ammonium chlorides, 10 parts of monoammonium phosphates, 8 parts in urea, 12 parts of adding stirrers of water, till stirring.
Second step: sulfuric acid is added reactive tank for 20 parts, add 20 parts in Repone K again, directly feed steam heating and carry out low-temp reaction, reaction generates sal enixum molten mass and HCI gas, the cooling of HCI gas warp let-off water cycle is received and is produced byproduct hydrochloric acid, and the sal enixum molten mass that obtains enters the nitration mixture Preparation tank.
The 3rd step: add the phosphor ammonium slurry prepare at the nitration mixture Preparation tank, mixing and stirring obtains meeting the nitration mixture of proportion requirement.
The 4th step: nitration mixture is sent into tubular reactor, directly add 15 parts in liquefied ammonia, neutralization reaction takes place in moment, emit a large amount of heat, make the moisture flash distillation in the interior material of tubular reactor gasify, form 0.2-0.3Mpa pressure, material sprays into bonding in the tablets press, reunion, rolling granulating by spray gun in the reactor under this pressure; Drying, cooling then, sub-sieve obtains finished product.
Claims (5)
1. the production method of an ammoniation-granulation compound potassium sulfate fertilizer, it is characterized in that (agricultural be a raw material with 8 parts in N8-11%, P2O5 〉=44-49%), urea (agricultural with N 〉=46%), 12 parts in water, liquefied ammonia 15 parts (industrial ammonia content 〉=98%), goes on foot chemical reactions by four and obtains finished product with 10 parts of 10 parts of: sulfuric acid 20 parts (industrial 98 ± 0.5%), Repone K 20 parts (industrial 95 ± 0.5%), ammonium chlorides (agricultural with K2O 〉=60%), monoammonium phosphate.
2. the production method of a kind of ammoniation-granulation compound potassium sulfate fertilizer according to claim 1, its the first step is characterised in that: prepare phosphor ammonium slurry earlier: with 10 parts of ammonium chlorides, 10 parts of monoammonium phosphates, 8 parts in urea, 12 parts of adding stirrers of water, till stirring.
3. the production method of a kind of ammoniation-granulation compound potassium sulfate fertilizer according to claim 1, its second step is characterised in that: sulfuric acid is added reactive tank for 20 parts, add 20 parts in Repone K again, directly feed steam heating and carry out low-temp reaction, reaction generates sal enixum molten mass and HCI gas, byproduct hydrochloric acid is collected in the cooling of HCI gas warp let-off water cycle, and the sal enixum molten mass that obtains enters the nitration mixture Preparation tank.
4. the production method of a kind of ammoniation-granulation compound potassium sulfate fertilizer according to claim 1, its 3rd step is characterised in that: add the phosphor ammonium slurry prepare at the nitration mixture Preparation tank, mixing and stirring obtains meeting the nitration mixture of proportion requirement.
5. the production method of a kind of ammoniation-granulation compound potassium sulfate fertilizer according to claim 1, its the 4th step is characterised in that: nitration mixture is sent into tubular reactor, directly add 15 parts in liquefied ammonia, neutralization reaction takes place in moment, emit a large amount of heat, make the moisture flash distillation in the interior material of tubular reactor gasify, form 0.2-0.3Mpa pressure, material sprays into bonding in the tablets press, reunion, rolling granulating by spray gun in the reactor under this pressure; Drying, cooling then, sub-sieve obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101426003A CN102206112A (en) | 2010-03-31 | 2010-03-31 | Ammoniation-granulation process for producing potassium sulfate composite fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101426003A CN102206112A (en) | 2010-03-31 | 2010-03-31 | Ammoniation-granulation process for producing potassium sulfate composite fertilizer |
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| CN102206112A true CN102206112A (en) | 2011-10-05 |
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| CN2010101426003A Pending CN102206112A (en) | 2010-03-31 | 2010-03-31 | Ammoniation-granulation process for producing potassium sulfate composite fertilizer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503636A (en) * | 2011-10-27 | 2012-06-20 | 山西师范大学 | Ammonium chloride agglomerating prilling method |
| CN103011942A (en) * | 2012-12-31 | 2013-04-03 | 山东奥宝化工集团有限公司 | Method for producing chlorine-based compound fertilizer through hydrochloric acid method |
| CN103058736A (en) * | 2012-12-27 | 2013-04-24 | 诸城市良丰化学有限公司 | 3+1 nutrient enrichment compound fertilizer and production process thereof |
| CN105859424A (en) * | 2016-05-16 | 2016-08-17 | 安徽省龙晨肥业有限公司 | Macroelement water soluble fertilizer |
| CN106069115A (en) * | 2016-07-01 | 2016-11-09 | 江苏飞扬农业科技有限公司 | A kind of implantation methods of African Chrysanthemum |
| CN106105714A (en) * | 2016-07-01 | 2016-11-16 | 江苏飞扬农业科技有限公司 | A kind of method preventing Africa Black Ostrich |
| CN106348971A (en) * | 2016-08-31 | 2017-01-25 | 湖北京晟生物科技股份有限公司 | Formula and preparation method of chitin-containing compound fertilizer |
| CN108794222A (en) * | 2018-09-13 | 2018-11-13 | 曲靖市锦屯农业科技有限责任公司 | A kind of Radix Salviae Miltiorrhizae special complex fertilizer and preparation method thereof |
-
2010
- 2010-03-31 CN CN2010101426003A patent/CN102206112A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503636A (en) * | 2011-10-27 | 2012-06-20 | 山西师范大学 | Ammonium chloride agglomerating prilling method |
| CN103058736A (en) * | 2012-12-27 | 2013-04-24 | 诸城市良丰化学有限公司 | 3+1 nutrient enrichment compound fertilizer and production process thereof |
| CN103011942A (en) * | 2012-12-31 | 2013-04-03 | 山东奥宝化工集团有限公司 | Method for producing chlorine-based compound fertilizer through hydrochloric acid method |
| CN105859424A (en) * | 2016-05-16 | 2016-08-17 | 安徽省龙晨肥业有限公司 | Macroelement water soluble fertilizer |
| CN106069115A (en) * | 2016-07-01 | 2016-11-09 | 江苏飞扬农业科技有限公司 | A kind of implantation methods of African Chrysanthemum |
| CN106105714A (en) * | 2016-07-01 | 2016-11-16 | 江苏飞扬农业科技有限公司 | A kind of method preventing Africa Black Ostrich |
| CN106348971A (en) * | 2016-08-31 | 2017-01-25 | 湖北京晟生物科技股份有限公司 | Formula and preparation method of chitin-containing compound fertilizer |
| CN108794222A (en) * | 2018-09-13 | 2018-11-13 | 曲靖市锦屯农业科技有限责任公司 | A kind of Radix Salviae Miltiorrhizae special complex fertilizer and preparation method thereof |
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Application publication date: 20111005 |