UST104501I4 - Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process - Google Patents
Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process Download PDFInfo
- Publication number
- UST104501I4 UST104501I4 US06/546,261 US54626183A UST104501I4 US T104501 I4 UST104501 I4 US T104501I4 US 54626183 A US54626183 A US 54626183A US T104501 I4 UST104501 I4 US T104501I4
- Authority
- US
- United States
- Prior art keywords
- ammoniation
- suspension fertilizers
- production
- batch
- heel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 6
- 239000003337 fertilizer Substances 0.000 title abstract 3
- 239000000725 suspension Substances 0.000 title abstract 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 230000008719 thickening Effects 0.000 abstract 2
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 abstract 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000499 gel Substances 0.000 abstract 1
- 235000019837 monoammonium phosphate Nutrition 0.000 abstract 1
- 239000006012 monoammonium phosphate Substances 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
An improved process for the production of highly concentrated (N-P2 O5) suspension fertilizers effected by the ammoniation of wet-process or other impure orthophosphoric acids in batch-type equipment. The underlying concept which goes to the gist of the instant invention involves the use of a heel of product from a previously prepared batch to provide nuclei and a suitable environment for the conversion of the metallic impurities therein into crystalline habits rather than the usual highly undesirable form of metallic impurity gel-like compounds, which gels cause extremely high viscosities, nonpourability, and complete destruction of fluidity in concentrated ammonium phosphate suspension fertilizers prepared by prior-art procedures. Also, during the ammoniation of acids by the instant process, the heel maintained therein prevents severe thickening due to mass crystallization of monoammonium phosphate, which severe thickening normally results in either/or extremely slow further ammoniation and excessive ammonia losses. Practice of this method is simple, economical, versatile, and can be performed in readily available equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/546,261 UST104501I4 (en) | 1983-10-28 | 1983-10-28 | Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process |
| US06/584,285 US4511388A (en) | 1983-10-28 | 1984-02-27 | Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/546,261 UST104501I4 (en) | 1983-10-28 | 1983-10-28 | Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/584,285 Continuation US4511388A (en) | 1983-10-28 | 1984-02-27 | Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST104501I4 true UST104501I4 (en) | 1984-08-07 |
Family
ID=24179595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/546,261 Pending UST104501I4 (en) | 1983-10-28 | 1983-10-28 | Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST104501I4 (en) |
-
1983
- 1983-10-28 US US06/546,261 patent/UST104501I4/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DEFENSIVE PUBLICATION OR SIR FILE |