UST986001I4 - Production of suspension fertilizers from orthophosphoric acid - Google Patents
Production of suspension fertilizers from orthophosphoric acid Download PDFInfo
- Publication number
- UST986001I4 UST986001I4 US05/947,684 US94768478A UST986001I4 US T986001 I4 UST986001 I4 US T986001I4 US 94768478 A US94768478 A US 94768478A US T986001 I4 UST986001 I4 US T986001I4
- Authority
- US
- United States
- Prior art keywords
- suspension
- production
- orthophosphoric acid
- crystal modifier
- suspension fertilizers
- 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
- 239000000725 suspension Substances 0.000 title abstract 4
- 239000003337 fertilizer Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 235000011007 phosphoric acid Nutrition 0.000 title abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title 2
- 239000013078 crystal Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 abstract 1
- 235000019837 monoammonium phosphate Nutrition 0.000 abstract 1
- 239000006012 monoammonium phosphate Substances 0.000 abstract 1
- 230000002265 prevention Effects 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 production of concentrated high-analysis nitrogen-phosphate base suspension fertilizer by ammoniation of wet-process or other orthophosphoric acids in two stages. The process improvement involves the addition of a small amount (0.1-0.5 percent) of a crystal modifier, fluosilicic acid, for prevention of settling of crystals in the suspension during vibration such as that which occurs during shipment. With use of the crystal modifier, the monoammonium phosphate crystals formed are small and needlelike, and suspension fertilizers with excellent shipping, storage, and handling properties are produced with an N:P2 O5 weight ratio in the range of highest solubility, about 0.27 to 0.33.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/947,684 UST986001I4 (en) | 1978-10-02 | 1978-10-02 | Production of suspension fertilizers from orthophosphoric acid |
| US06/021,879 US4375980A (en) | 1978-10-02 | 1979-03-19 | Production of suspension fertilizers from orthophorphoric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/947,684 UST986001I4 (en) | 1978-10-02 | 1978-10-02 | Production of suspension fertilizers from orthophosphoric acid |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/021,879 Continuation US4375980A (en) | 1978-10-02 | 1979-03-19 | Production of suspension fertilizers from orthophorphoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST986001I4 true UST986001I4 (en) | 1979-09-04 |
Family
ID=25486571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/947,684 Pending UST986001I4 (en) | 1978-10-02 | 1978-10-02 | Production of suspension fertilizers from orthophosphoric acid |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST986001I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537615A (en) | 1981-01-07 | 1985-08-27 | James C. Barber And Associates, Inc. | Fertilizer from phosphorus furnace waste stream |
-
1978
- 1978-10-02 US US05/947,684 patent/UST986001I4/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537615A (en) | 1981-01-07 | 1985-08-27 | James C. Barber And Associates, Inc. | Fertilizer from phosphorus furnace waste stream |
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