UST940023I4 - Hicks pipe reactor-continuous ammoniator process for production of granular phosphates - Google Patents
Hicks pipe reactor-continuous ammoniator process for production of granular phosphates Download PDFInfo
- Publication number
- UST940023I4 UST940023I4 US51745274A UST940023I4 US T940023 I4 UST940023 I4 US T940023I4 US 51745274 A US51745274 A US 51745274A US T940023 I4 UST940023 I4 US T940023I4
- Authority
- US
- United States
- Prior art keywords
- melt
- ammonium phosphate
- production
- pipe
- granular
- 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 description 9
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 title description 2
- 235000021317 phosphate Nutrition 0.000 title 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title 1
- 239000003337 fertilizer Substances 0.000 abstract description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000004254 Ammonium phosphate Substances 0.000 abstract description 8
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract description 8
- 235000019289 ammonium phosphates Nutrition 0.000 abstract description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000155 melt Substances 0.000 abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 235000011007 phosphoric acid Nutrition 0.000 abstract description 4
- 238000005469 granulation Methods 0.000 abstract description 3
- 230000003179 granulation Effects 0.000 abstract description 3
- 229920000388 Polyphosphate Polymers 0.000 abstract description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910021529 ammonia Inorganic materials 0.000 abstract description 2
- 239000004202 carbamide Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract description 2
- 239000001205 polyphosphate Substances 0.000 abstract description 2
- 235000011176 polyphosphates Nutrition 0.000 abstract description 2
- 239000001103 potassium chloride Substances 0.000 abstract description 2
- 235000011164 potassium chloride Nutrition 0.000 abstract description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 abstract 1
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Substances OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Definitions
- fertilizer materials can include potassium chloride, single supcrphosphatc, and urea, as well as others common to the industry.
- Wot-process orthophosphoric acid typically containing 54 percent P 0 is ammoniated to an mole ratio of about 1.0 and the steam formed by the heat of reaction atomizcs the ammonium phosphate melt very cifectivcly, resulting in proper distribution of the melt for granulation of the small particles.
- the present invention is a result of a continuation of Mclines work in US. Pat. 3,733,191.
- a simple perforated pipe attached to the discharge end of the inline reactor results in effective disengagement of vapor from the melt and in much improved distribution of the ammonium phosphate melt, thereby further improving the process by eliminating the need for Melines tube-and-rotor vapor discngager. Up to about 30 percent of the P 0 in the melt may to polyphosphate.
- the melt may be ammoniated from an NH :H PO mole ratio of 1.0 to about 1.2 or higher by addition of ammonia in the granulator.
- the ammonium phosphate is essentially anhydrous and the granules of mixed fertilizers do not require drying. Elimination of drying greatly decreases investment, dust and fume evolution, and fuel requirement.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
PROCESS FOR PRODUCTION OF GRANULAR MIXED FERTILIZER IN WHICH AMMONIUM PHOSPHATE MELT IS PREPARED IN A PIPE REACTOR AND DISPERSED THROUGH A PLURALITY OF APERTURES IN THE WALL OF THE PIPE AS A FINE SPRAY WHICH SERVES TO BIND SMALL PARTICLES OF FERTILIZER MATERIALS INTO GRANULES. SUCH FERTILIZER MATERIALS CAN INCLUDE POTASSIUM CHLORIDE, SINGLE SUPERPHOSPHATE, AND UREA, AS WELL AS OTHERS COMMON TO THE INDUSTRY. WET-PROCESS ORTHOPHOSPHORIC ACID TYPICALLY CONTAINING 54 PERCENT P2O5 IS AMMONIATED TO AN
NH3:H3PO4
MOLE RATIO OF ABOUT 1.0 AND THE STEAM FORMED BY THE HEAT OF REACTION ATOMIZES THE AMMONIUM PHOSPHATE MELT VERY EFFECTIVELY, RESULTING IN PROPER DISTRIBUTION OF THE MELT FOR GRANULATION OF THE SMALL PARTICLES. THE PRESENT INVENTION IS A RESULT OF A CONTINUATION OF MELINE''S WORK IN U.S. PAT. 3,733,191. A SIMPLE PERFORATED PIPE ATTACHED TO THE DISCHARGE END OF THE INLINE REACTOR RESULTS IN EFFECTIVE DISENGAGEMENT OF VAPOR FROM THE MELT AND IN MUCH IMPROVED DISTRIBUTION OF THE AMMONIUM PHOSPHATE MELT, THEREBY FURTHUR IMPROVING THE PROCESS BY ELIMINATING THE NEED FOR MELINE''S TUBE-AND-ROTOR VAPOR DISENGAGER. UP TO ABOUT 30 PERCENT OF THE P2O5 IN THE MELT MAY TO POLYPHOSPHATE. THE MELT MAY BE AMMONIATED FROM AN NH3,:H3PO4 MOLE RATIO OF 1.0 TO ABOUT 1.2 OR HIGHER BY ADDITION OF AMMONIA IN THE GRANULATOR. THE AMMONIUM PHOSPHATE IS ESSENTIALLY ANHYDROUS AND THE GRANULES OF MIXED FERTILIZERS DO NOT REQUIRE DRYING. ELIMINATION OF DRYING GREATLY DECREASES INVESTMENT, DUST AND FUME EVOLUTION, AND FUEL REQUIREMENT.
NH3:H3PO4
MOLE RATIO OF ABOUT 1.0 AND THE STEAM FORMED BY THE HEAT OF REACTION ATOMIZES THE AMMONIUM PHOSPHATE MELT VERY EFFECTIVELY, RESULTING IN PROPER DISTRIBUTION OF THE MELT FOR GRANULATION OF THE SMALL PARTICLES. THE PRESENT INVENTION IS A RESULT OF A CONTINUATION OF MELINE''S WORK IN U.S. PAT. 3,733,191. A SIMPLE PERFORATED PIPE ATTACHED TO THE DISCHARGE END OF THE INLINE REACTOR RESULTS IN EFFECTIVE DISENGAGEMENT OF VAPOR FROM THE MELT AND IN MUCH IMPROVED DISTRIBUTION OF THE AMMONIUM PHOSPHATE MELT, THEREBY FURTHUR IMPROVING THE PROCESS BY ELIMINATING THE NEED FOR MELINE''S TUBE-AND-ROTOR VAPOR DISENGAGER. UP TO ABOUT 30 PERCENT OF THE P2O5 IN THE MELT MAY TO POLYPHOSPHATE. THE MELT MAY BE AMMONIATED FROM AN NH3,:H3PO4 MOLE RATIO OF 1.0 TO ABOUT 1.2 OR HIGHER BY ADDITION OF AMMONIA IN THE GRANULATOR. THE AMMONIUM PHOSPHATE IS ESSENTIALLY ANHYDROUS AND THE GRANULES OF MIXED FERTILIZERS DO NOT REQUIRE DRYING. ELIMINATION OF DRYING GREATLY DECREASES INVESTMENT, DUST AND FUME EVOLUTION, AND FUEL REQUIREMENT.
Description
int n UNITED STATES PATENT AND TRADElliAR-K OFFICE Published at the request of the applicant OIOvfiltjl' in ncco lnnce "with the Notice of Dec. 16, 1.139, 869 0G, 63 The abstracts of Defensive Publication applications to identified b" di tinctl numbered series and are arranged chronologically. The heading of each abstract; indicates the 11' including claims and sheets of drawings contained in the application as originally filed. The file able to "the public for inspection and reproduction may he purchased for 30 cents 1. sheet.
PIC
.11 exami d as to the merits of alleged invention. The Patent and of the disclosed subject matter.
PUBLISHED NOVEh'lBER i, 1975 9-H) OG. 1:3
wron s rnoc r rnonucrron or GRANUELAR runs? HATES Gordon (3. Picks, 33%? 19th Ave illicit-laid, Ala. 356th), and E. Lancaster, 3n, Kilian, Ala. 35645 Filed (Pct. 24, 1974, Eur. No, 517,452
Int. Cl. 6105b 7/00 US. Cl. 7l--3 l ll Sheet Drawing 13 Pages dnecilication Acm assussrw $2521 /&
nzzvrtr rims FLOW DIAGRAM OF GRANULATION PILOT PLANT USING PIPE REACTOR PROCESS FOR NPK FERTILIZERS Process for production of granular mixed fertilizer in which ammonium phosphate melt is prepared in a pipe reactor and dispersed through a plurality of apertures in the wall of the pipe as a fine spray which serves to bind small particles of fertilizer materials into granules. Such fertilizer materials can include potassium chloride, single supcrphosphatc, and urea, as well as others common to the industry. Wot-process orthophosphoric acid typically containing 54 percent P 0 is ammoniated to an mole ratio of about 1.0 and the steam formed by the heat of reaction atomizcs the ammonium phosphate melt very cifectivcly, resulting in proper distribution of the melt for granulation of the small particles. The present invention is a result of a continuation of Mclines work in US. Pat. 3,733,191. A simple perforated pipe attached to the discharge end of the inline reactor results in effective disengagement of vapor from the melt and in much improved distribution of the ammonium phosphate melt, thereby further improving the process by eliminating the need for Melines tube-and-rotor vapor discngager. Up to about 30 percent of the P 0 in the melt may to polyphosphate. The melt may be ammoniated from an NH :H PO mole ratio of 1.0 to about 1.2 or higher by addition of ammonia in the granulator. The ammonium phosphate is essentially anhydrous and the granules of mixed fertilizers do not require drying. Elimination of drying greatly decreases investment, dust and fume evolution, and fuel requirement.
Nova 4, 1975 G. c. HICKS PIPE REACTOR-CONTINUOUS AMMONIATOR PROCESS FOR PRODUCTION OF GRANULAR PHOSPHATES On'ginal Filed Oct. 24, 1974 mmwNjrrmwm v52 mOu mmwoOmm mokoafim mnzm 0253 5.24 5 P0 21 20 JDz mo m0 fiqmwic 30 l 35 mos/Gm $2 535 2210 NE E 236 Q). LEEE. 555 k Q @2522 EE b N 0 m zmwmow 93 $226 X I 93 R oEozamoxa
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51745274 UST940023I4 (en) | 1974-10-24 | 1974-10-24 | Hicks pipe reactor-continuous ammoniator process for production of granular phosphates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51745274 UST940023I4 (en) | 1974-10-24 | 1974-10-24 | Hicks pipe reactor-continuous ammoniator process for production of granular phosphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST940023I4 true UST940023I4 (en) | 1975-11-04 |
Family
ID=24059851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US51745274 Pending UST940023I4 (en) | 1974-10-24 | 1974-10-24 | Hicks pipe reactor-continuous ammoniator process for production of granular phosphates |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST940023I4 (en) |
-
1974
- 1974-10-24 US US51745274 patent/UST940023I4/en active Pending
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