UST996001I4 - Production of ammonium potassium polyphosphates - Google Patents
Production of ammonium potassium polyphosphates Download PDFInfo
- Publication number
- UST996001I4 UST996001I4 US06/076,007 US7600779A UST996001I4 US T996001 I4 UST996001 I4 US T996001I4 US 7600779 A US7600779 A US 7600779A US T996001 I4 UST996001 I4 US T996001I4
- Authority
- US
- United States
- Prior art keywords
- ammonium potassium
- urea
- potassium polyphosphate
- mole ratio
- production
- 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
- 235000019828 potassium polyphosphate Nutrition 0.000 title abstract 5
- FQLQNUZHYYPPBT-UHFFFAOYSA-N potassium;azane Chemical compound N.[K+] FQLQNUZHYYPPBT-UHFFFAOYSA-N 0.000 title abstract 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 3
- 239000004202 carbamide Substances 0.000 abstract 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000003337 fertilizer Substances 0.000 abstract 2
- 235000015097 nutrients Nutrition 0.000 abstract 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 abstract 2
- 229910003944 H3 PO4 Inorganic materials 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 abstract 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/06—Alkali and alkaline earth meta- or polyphosphate fertilisers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Embodiment No. 1. Urea phosphate prepared from wet-process phosphoric acid is heated with monopotassium orthophosphate in a mole ratio of 0.25 to 4.0 at 130° to 200° C. to form an ammonium potassium polyphosphate having an average chain length between 1.2 and 2.5. The ammonium potassium polyphosphate is dissolved in aqueous ammonia to yield concentrated fertilizer solutions containing the three major nutrients and over 50 percent total plant food.
Embodiment No. 2. Phosphoric acid containing 54 to 76 percent P2 O5 is heated with urea (urea:H3 PO4 mole ratio 0.5 to 2.0) and monopotassium orthophosphate (urea:KH2 PO4 mole ratio 0.25 to 4.0) at 130° to 200° C. to form an ammonium potassium polyphosphate having an average chain length between 1.2 and 2.5. The ammonium potassium polyphosphate is dissolved in aqueous ammonia to yield concentrated fertilizer solutions containing the three major nutrients and over 50 percent total plant food.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/076,007 UST996001I4 (en) | 1979-09-17 | 1979-09-17 | Production of ammonium potassium polyphosphates |
| US06/121,184 US4308048A (en) | 1979-09-17 | 1980-02-13 | Production of ammonium potassium polyphosphates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/076,007 UST996001I4 (en) | 1979-09-17 | 1979-09-17 | Production of ammonium potassium polyphosphates |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/121,184 Continuation US4308048A (en) | 1979-09-17 | 1980-02-13 | Production of ammonium potassium polyphosphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST996001I4 true UST996001I4 (en) | 1980-07-01 |
Family
ID=22129338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/076,007 Pending UST996001I4 (en) | 1979-09-17 | 1979-09-17 | Production of ammonium potassium polyphosphates |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST996001I4 (en) |
-
1979
- 1979-09-17 US US06/076,007 patent/UST996001I4/en active Pending
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