UST986010I4 - Simplified batch clarification of liquid ammonium polyphosphate - Google Patents
Simplified batch clarification of liquid ammonium polyphosphate Download PDFInfo
- Publication number
- UST986010I4 UST986010I4 US05/949,723 US94972378A UST986010I4 US T986010 I4 UST986010 I4 US T986010I4 US 94972378 A US94972378 A US 94972378A US T986010 I4 UST986010 I4 US T986010I4
- Authority
- US
- United States
- Prior art keywords
- ammonium polyphosphate
- flocculant
- liquid
- carbonaceous matter
- particulate
- 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
- 239000007788 liquid Substances 0.000 title abstract 7
- 239000004114 Ammonium polyphosphate Substances 0.000 title abstract 5
- 235000019826 ammonium polyphosphate Nutrition 0.000 title abstract 5
- 229920001276 ammonium polyphosphate Polymers 0.000 title abstract 5
- 238000005352 clarification Methods 0.000 title 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 239000008394 flocculating agent Substances 0.000 abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/40—Polyphosphates
- C01B25/405—Polyphosphates of ammonium
-
- 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)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
particulate carbonaceous matter in ammonium polyphosphate liquid made from impure wet-process phosphoric acid is removed batchwise by intimately mixing the liquid with a combination of selected organic flocculating agents and then allowing the mixture to separate. The particulate carbonaceous matter floats rapidly to the surface and the clarified liquid that contains essentially no particulate carbonaceous matter is withdrawn from the bottom of the separation vessel. The particulate carbonaceous matter, a minor portion of the input ammonium polyphosphate liquid, and the flocculating agents are then intimately remixed with an additional fresh charge of black ammonium polyphosphate liquid to allow reuse of flocculant not combined with the particulate carbon material in the original charge. This reuse of flocculant may be repeated as many as five times. After the flocculant is inactive, the carbonaceous matter, the inactive flocculant, and a minor portion of the input ammonium polyphosphate liquid are then withdrawn and processed into fluid or solid fertilizers. In some instances, more flocculant is added to the mixing vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/949,723 UST986010I4 (en) | 1978-10-10 | 1978-10-10 | Simplified batch clarification of liquid ammonium polyphosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/949,723 UST986010I4 (en) | 1978-10-10 | 1978-10-10 | Simplified batch clarification of liquid ammonium polyphosphate |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/036,276 Continuation-In-Part US4246248A (en) | 1979-05-07 | 1979-05-07 | Simplified batch clarification of liquid ammonium polyphosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST986010I4 true UST986010I4 (en) | 1979-09-04 |
Family
ID=25489471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/949,723 Pending UST986010I4 (en) | 1978-10-10 | 1978-10-10 | Simplified batch clarification of liquid ammonium polyphosphate |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST986010I4 (en) |
-
1978
- 1978-10-10 US US05/949,723 patent/UST986010I4/en active Pending
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