UST100805I4 - Clarification of black ammonium polyphosphate liquids recycling of byproduct tops - Google Patents
Clarification of black ammonium polyphosphate liquids recycling of byproduct tops Download PDFInfo
- Publication number
- UST100805I4 UST100805I4 US06/194,304 US19430480A UST100805I4 US T100805 I4 UST100805 I4 US T100805I4 US 19430480 A US19430480 A US 19430480A US T100805 I4 UST100805 I4 US T100805I4
- Authority
- US
- United States
- Prior art keywords
- ammonium polyphosphate
- black
- tops
- liquid
- byproduct
- 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.)
- Abandoned
Links
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
The process allows essentially all of the nitrogen and P2 O5 values in the treated black ammonium polyphosphate liquid to be recovered in the form of valuable clarified product. In the process, a heel of black liquid fertilizer is first clarified by a prior-art procedure using flocculants. The improvement over the prior art picks up with the byproduct tops which is then diluted with the water of formulation required to dissolve additional amounts of ammonium polyphosphate melt. This diluted liquid is filtered, the filter cake containing upwards of 99 percent of the undesirable black carbonaceous material is discarded, and the clear filtrate, which contains essentially all of the nitrogen and P2 O5 originally in the tops, is then used in lieu of the prior-art water of formulation to dissolve additional ammonium polyphosphate melt to produce more black ammonium polyphosphate liquid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/194,304 UST100805I4 (en) | 1980-10-06 | 1980-10-06 | Clarification of black ammonium polyphosphate liquids recycling of byproduct tops |
| US06/407,526 US4427432A (en) | 1980-10-06 | 1982-08-12 | Clarification of black ammonium polyphosphate liquids--recycling of byproduct "tops" |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/194,304 UST100805I4 (en) | 1980-10-06 | 1980-10-06 | Clarification of black ammonium polyphosphate liquids recycling of byproduct tops |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06232926 Continuation | 1981-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST100805I4 true UST100805I4 (en) | 1981-07-07 |
Family
ID=22717062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/194,304 Abandoned UST100805I4 (en) | 1980-10-06 | 1980-10-06 | Clarification of black ammonium polyphosphate liquids recycling of byproduct tops |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST100805I4 (en) |
-
1980
- 1980-10-06 US US06/194,304 patent/UST100805I4/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |