CN102086131A - Method for co-producing diammonium phosphate by powdery monoammonium phosphate production device - Google Patents
Method for co-producing diammonium phosphate by powdery monoammonium phosphate production device Download PDFInfo
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- CN102086131A CN102086131A CN2010105549854A CN201010554985A CN102086131A CN 102086131 A CN102086131 A CN 102086131A CN 2010105549854 A CN2010105549854 A CN 2010105549854A CN 201010554985 A CN201010554985 A CN 201010554985A CN 102086131 A CN102086131 A CN 102086131A
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- phosphate
- monoammonium phosphate
- powdery monoammonium
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- diammonium phosphate
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Abstract
The invention provides a method for co-producing diammonium phosphate by a powdery monoammonium phosphate production device. The method comprises the following steps: firstly, calculating and determining the mass ratio required by reacting powdery monoammonium phosphate slurry with other ammonium salts according to the total nitrogen content of a diammonium phosphate product; subsequently, stirring and evenly mixing the ammonium salts determined by calculation in a mixing tank by a stirrer; adding the powdery monoammonium phosphate slurry according to the ratio determined by calculation; then, pumping the mixed liquid by a pump for granulating; and finally, granulating, drying, smashing and screening by a conventional technology so as to produce the diammonium phosphate product. The method has the following advantages: 1, the powdery monoammonium phosphate serving as a compound fertilizer raw material is low in price, and the commercial price of the diammonium phosphate produced by the powdery monoammonium phosphate slurry is higher than that of the powdery monoammonium phosphate, thereby improving the economic benefit of an enterprise; 2, the powdery monoammonium phosphate is used as the raw material to produce low-nutrient diammonium phosphate, thereby meeting the market requirement; and 3, the existing powdery monoammonium phosphate device is adopted, so as to increase the diversity of products. The production method is suitable for ammonium phosphate production factories.
Description
[technical field]
The present invention relates to fertilizer, specifically, relate to phosphate fertilizer, relate in particular to diammonium phosphate.
[background technology]
As everyone knows, ammonium phosphate typically refers to monoammonium phosphate and diammonium phosphate, is called for short the phosphorus ammonium.The ammonium phosphate physical properties difference that different material is produced is bigger, and the price on market is also different.Powder MAP is as a kind of composite fertilizer material, its cheap market price; Simultaneously, there is the demand to low nutrient diammonium phosphate in market.Yet existing powdery monoammonium phosphate device can't the coproduction diammonium phosphate.
In Chinese patent database, the patent application that relates to monoammonium phosphate and diammonium phosphate coproduction has " co-production method of diammonium phosphate and monoammonium phosphate and washings neutralizing device " No. 02113425.1, number 02113665.3 " diammonium phosphate exhaust silt acid absorption-method of enrichment coproduction monoammonium phosphate ", number 200810048758.7 " technology of slurry concentrated process coproduction diammonium phosphate and monoammonium phosphate ", number 200910263774.2 " method for changing granular monoammonium phosphate to produce diammonium phosphate by diammonium phosphate device ", number 200910263779.5 " method for changing diammonium phosphate to produce granular monoammonium phosphate by diammonium phosphate device ", 200910263800.1 number " with the method for producing granular monoammonium phosphate with diammonium phosphate device " etc. still do not have the method for utilizing powdery monoammonium phosphate production equipment coproduction diammonium phosphate at present and comes out.
[summary of the invention]
Purpose of the present invention just provides a kind of method with powdery monoammonium phosphate production equipment coproduction diammonium phosphate, to meet the need of market, improves economic benefit of enterprises.
The contriver is through exploring and test, and the method with powdery monoammonium phosphate production equipment coproduction diammonium phosphate that provides, principle are that Powder MAP slip and the reaction of other ammonium salt are produced low nutrient diammonium phosphate.Specific practice is: the total nitrogen content according to diammonium phosphate product calculates, determines the mass ratio of powdery monoammonium phosphate slip and other ammonium salt reaction needed earlier, to calculate the ammonium salt quality of determining afterwards mixes with agitator in tempering tank, add the powdery monoammonium phosphate slip according to calculating the ratio of determining again, with pump mixed solution is delivered to granulating working procedure then, carry out granulation, drying, fragmentation and screening, the diammonium phosphate product made from routine techniques at last.
In the aforesaid method, the raw material dilute phosphoric acid massfraction that described powdery monoammonium phosphate uses is 21%～30%; Described powdery monoammonium phosphate slip is to adopt traditional powdery monoammonium phosphate production method, imitates the monoammonium phosphate slip of drawing after the flash distillation from II; The moisture massfraction of described powdery monoammonium phosphate slip is controlled to be 26%～35%, with butt P
2O
5The massfraction of meter phosphorus is 48%～50%, the massfraction of N is 9%～11%.
Ammonium salt described in the aforesaid method is one or more in urea, ammonium chloride, ammonium nitrate, the ammonium sulfate; The total nitrogen massfraction is controlled at 21%～46% in butt in the described ammonium salt.
The diammonium phosphate that aforesaid method is produced, the nutrient massfraction is N14%～17%, P
2O
534%～49%.
Method provided by the invention has following advantage:
(1) powdery monoammonium phosphate is as composite fertilizer material, and is cheap, the diammonium phosphate of utilizing the powdery monoammonium phosphate slip to produce, and market value can improve economic benefit of enterprises than powdery monoammonium phosphate height; (2) utilize powdery monoammonium phosphate as the low nutrient diammonium phosphate of raw material production, can satisfy market demand; (3) utilize existing powdery monoammonium phosphate device to increase product diversity.Be applicable to phosphorus ammonium manufacturer.
[description of drawings]
Accompanying drawing is a Production Flow Chart synoptic diagram provided by the invention.
[embodiment]
Urn good fortune phosphate fertilizer plant of urn good fortune (group) company limited uses the inventive method, and is with 240,000 tons/Powder MAP device coproduction diammonium phosphate, respond well.
Flow process as shown in drawings, earlier the total nitrogen content according to diammonium phosphate product calculates, determines that powdery monoammonium phosphate slip and mass ratio as the urea reaction needs of ammonium salt are 1000: (30～250), afterwards solid-state ammonium salt added in the tempering tank with the agitator continuously stirring, mix, imitate the powdery monoammonium phosphate slip of drawing after the flash distillation according to calculating the ratio adding of determining from II again, the moisture massfraction of powdery monoammonium phosphate slip is controlled to be 30%; With pump mixed solution is delivered to granulating working procedure then, carry out granulation, drying, fragmentation and screening, the diammonium phosphate product made from routine techniques at last.
The raw material dilute phosphoric acid massfraction that powdery monoammonium phosphate uses is 21%～30%.
Ammonium salt total nitrogen massfraction is controlled at 3%～25% in butt in the process.
The diammonium phosphate of producing, the nutrient massfraction is N14%～17%, P
2O
534%～49%.
It below is production operation situation 20 to 29 January in 2010
Claims (4)
1. method with powdery monoammonium phosphate production equipment coproduction diammonium phosphate, it is characterized in that this method is: the total nitrogen content according to diammonium phosphate product calculates, determines the mass ratio of powdery monoammonium phosphate slip and other ammonium salt reaction needed earlier, to calculate the ammonium salt quality of determining afterwards mixes with agitator in tempering tank, add the powdery monoammonium phosphate slip according to calculating the ratio of determining again, with pump mixed solution is delivered to granulating working procedure then, carry out granulation, drying, fragmentation and screening, the diammonium phosphate product made from routine techniques at last.
2. the method for claim 1 is characterized in that the raw material dilute phosphoric acid massfraction that described powdery monoammonium phosphate uses is 21%～30%; Described powdery monoammonium phosphate slip is to adopt traditional powdery monoammonium phosphate production method, imitates the monoammonium phosphate slip of drawing after the flash distillation from II; The moisture massfraction of described powdery monoammonium phosphate slip is controlled to be 26%～35%, with butt P
2O
5The massfraction of meter phosphorus is 48%～50%, the massfraction of N is 9%～11%.
3. the method for claim 1 is characterized in that described ammonium salt is one or more in urea, ammonium chloride, ammonium nitrate, the sulphur ammonium; The total nitrogen massfraction is controlled at 21%～46% in butt in the described ammonium salt.
4. the method for claim 1 is characterized in that described nutrients of diammonium phosphate product massfraction is N14%～17%, P
2O
534%～49%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105549854A CN102086131A (en) | 2010-11-23 | 2010-11-23 | Method for co-producing diammonium phosphate by powdery monoammonium phosphate production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105549854A CN102086131A (en) | 2010-11-23 | 2010-11-23 | Method for co-producing diammonium phosphate by powdery monoammonium phosphate production device |
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| CN102086131A true CN102086131A (en) | 2011-06-08 |
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| CN2010105549854A Pending CN102086131A (en) | 2010-11-23 | 2010-11-23 | Method for co-producing diammonium phosphate by powdery monoammonium phosphate production device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674931A (en) * | 2012-05-16 | 2012-09-19 | 瓮福（集团）有限责任公司 | Method for co-producing ammonium sulfate phosphate fertilizer by using powder monoammonium phosphate production device |
| CN102874780A (en) * | 2012-10-23 | 2013-01-16 | 瓮福（集团）有限责任公司 | Ammonium phosphate production energy-saving equipment |
| CN110316709A (en) * | 2019-07-04 | 2019-10-11 | 安徽省司尔特肥业股份有限公司 | A kind of technique using MAP Plant production Diammonium phosphate (DAP) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076680A (en) * | 1992-07-17 | 1993-09-29 | 莱西市磷肥厂 | Enriching slurry process for production of diammonium phosphate |
| CN1212247A (en) * | 1997-09-23 | 1999-03-31 | 张智新 | Producing ammonium phosphate from ammonium carbonate |
| CN1872799A (en) * | 2006-06-16 | 2006-12-06 | 四川川大中德环保技术有限公司 | Associated production method by using condensed phosphoric acid to produce diammonium phosphate, and by using condensed acidic feed pulp to produce phosphor ammonium or/and compound fertilizer |
| CN101337664A (en) * | 2008-08-11 | 2009-01-07 | 湖北祥云(集团)化工股份有限公司 | Process for co-producing diammonium phosphate and monoammonium phosphate by slurry concentration method |
-
2010
- 2010-11-23 CN CN2010105549854A patent/CN102086131A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076680A (en) * | 1992-07-17 | 1993-09-29 | 莱西市磷肥厂 | Enriching slurry process for production of diammonium phosphate |
| CN1212247A (en) * | 1997-09-23 | 1999-03-31 | 张智新 | Producing ammonium phosphate from ammonium carbonate |
| CN1872799A (en) * | 2006-06-16 | 2006-12-06 | 四川川大中德环保技术有限公司 | Associated production method by using condensed phosphoric acid to produce diammonium phosphate, and by using condensed acidic feed pulp to produce phosphor ammonium or/and compound fertilizer |
| CN101337664A (en) * | 2008-08-11 | 2009-01-07 | 湖北祥云(集团)化工股份有限公司 | Process for co-producing diammonium phosphate and monoammonium phosphate by slurry concentration method |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部建设协调司，化工部硫酸和磷肥设计中心组织编写: "《磷酸 磷铵 重钙技术与设计手册》", 31 January 1997, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674931A (en) * | 2012-05-16 | 2012-09-19 | 瓮福（集团）有限责任公司 | Method for co-producing ammonium sulfate phosphate fertilizer by using powder monoammonium phosphate production device |
| CN102874780A (en) * | 2012-10-23 | 2013-01-16 | 瓮福（集团）有限责任公司 | Ammonium phosphate production energy-saving equipment |
| CN110316709A (en) * | 2019-07-04 | 2019-10-11 | 安徽省司尔特肥业股份有限公司 | A kind of technique using MAP Plant production Diammonium phosphate (DAP) |
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Application publication date: 20110608 |