GB1142357A - Phosphoric acid concentration - Google Patents
Phosphoric acid concentrationInfo
- Publication number
- GB1142357A GB1142357A GB31313/66A GB3131366A GB1142357A GB 1142357 A GB1142357 A GB 1142357A GB 31313/66 A GB31313/66 A GB 31313/66A GB 3131366 A GB3131366 A GB 3131366A GB 1142357 A GB1142357 A GB 1142357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- dehydrator
- phosphoric acid
- july
- reached
- 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.)
- Expired
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 4
- 239000000567 combustion gas Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
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
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
- C01B25/2346—Concentration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/19—Acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Drying Of Gases (AREA)
Abstract
1,142,357. Concentrating phosphoric acid. ARMOUR AGRICULTURAL CHEMICAL CO. 12 July, 1966 [16 July, 1965], No. 31313/66. Heading C1A. [Also in Division B1] In a process for the dehydration of wet process H 3 PO 4 by discharging hot combustion gases through a dip pipe into a dehydrator vessel containing the H 3 PO 4 , water is used instead of H 3 PO 4 to start up the process until operating conditions are reached, e.g. full combustion gas flow rates, when the feeding of water is discontinued and H 3 PO 4 fed in while draining the water from the dehydrator vessel. In an example the combustion gases (gas and air mixture) were discharged into the dehydrator at 1900 F., the changeover from water to H 3 PO 4 was effected when the water reached 200 F., and the acid dehydrated at a pool temperature of 600 F. The process of the invention prevents metal salt deposition during the start-up period.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US472410A US3408168A (en) | 1965-07-16 | 1965-07-16 | Phosphoric acid concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1142357A true GB1142357A (en) | 1969-02-05 |
Family
ID=23875402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31313/66A Expired GB1142357A (en) | 1965-07-16 | 1966-07-12 | Phosphoric acid concentration |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3408168A (en) |
| GB (1) | GB1142357A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3847714A (en) * | 1972-06-15 | 1974-11-12 | Dasi Industries | Method and apparatus for heat treating liqueform materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3276510A (en) * | 1966-10-04 | Concentration op phosphoric acid | ||
| US3104947A (en) * | 1959-08-25 | 1963-09-24 | Collier Carbon & Chemical Co | Submerged combustion concentration apparatus and process |
| US3073683A (en) * | 1959-08-25 | 1963-01-15 | Collier Carbon & Chemical Co | Apparatus for submerged combustion heating of liquids |
-
1965
- 1965-07-16 US US472410A patent/US3408168A/en not_active Expired - Lifetime
-
1966
- 1966-07-12 GB GB31313/66A patent/GB1142357A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3408168A (en) | 1968-10-29 |
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