CA1085583A - Process of concentrating dilute phosphoric acid - Google Patents
Process of concentrating dilute phosphoric acidInfo
- Publication number
- CA1085583A CA1085583A CA294,197A CA294197A CA1085583A CA 1085583 A CA1085583 A CA 1085583A CA 294197 A CA294197 A CA 294197A CA 1085583 A CA1085583 A CA 1085583A
- Authority
- CA
- Canada
- Prior art keywords
- stage
- acid
- concentrating
- heated
- phosphoric acid
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic acid; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/765—Multi-stage SO3-conversion
- C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2700009.5 | 1977-01-03 | ||
| DE2700009A DE2700009C3 (de) | 1977-01-03 | 1977-01-03 | Verfahren zur Aufkonzentrierung von verdünnter Phosphorsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1085583A true CA1085583A (en) | 1980-09-16 |
Family
ID=5998041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA294,197A Expired CA1085583A (en) | 1977-01-03 | 1977-12-30 | Process of concentrating dilute phosphoric acid |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5385797A (xx) |
| AU (1) | AU513920B2 (xx) |
| BE (1) | BE862580A (xx) |
| BR (1) | BR7800006A (xx) |
| CA (1) | CA1085583A (xx) |
| DE (1) | DE2700009C3 (xx) |
| ES (1) | ES465669A1 (xx) |
| FI (1) | FI773907A (xx) |
| FR (1) | FR2376071A1 (xx) |
| GB (1) | GB1589945A (xx) |
| IT (1) | IT1090383B (xx) |
| NO (1) | NO774454L (xx) |
| PL (1) | PL203780A1 (xx) |
| SE (1) | SE7800045L (xx) |
| ZA (1) | ZA777069B (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2824010A1 (de) * | 1978-06-01 | 1979-12-13 | Metallgesellschaft Ag | Verfahren zur aufkonzentrierung von verduennter phosphorsaeure |
| CA1146722A (en) * | 1981-04-10 | 1983-05-24 | Gordon M. Cameron | Energy recovery method and system for combined sulphuric and phosphoric acid manufacturing plant |
| DE3232446A1 (de) * | 1982-08-12 | 1984-02-16 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur herstellung von schwefelsaeure |
| US4576813A (en) * | 1983-07-05 | 1986-03-18 | Monsanto Company | Heat recovery from concentrated sulfuric acid |
| US4670242A (en) * | 1984-11-09 | 1987-06-02 | Monsanto Company | Heat recovery from concentrated sulfuric acid |
| CN103523763B (zh) * | 2013-10-11 | 2017-04-05 | 徐州天正活性炭厂 | 一种快速浓缩稀磷酸的节能装置和方法 |
| CN104445118B (zh) * | 2014-12-01 | 2016-08-31 | 四川玖长科技有限公司 | 用于从窑法磷酸工艺的出窑烟气中制磷酸的工艺 |
| CN109941979A (zh) * | 2019-04-30 | 2019-06-28 | 舒爱桦 | 一种高效肥料磷酸制食品级磷酸的工艺 |
-
1977
- 1977-01-03 DE DE2700009A patent/DE2700009C3/de not_active Expired
- 1977-11-28 ZA ZA00777069A patent/ZA777069B/xx unknown
- 1977-12-13 GB GB51891/77A patent/GB1589945A/en not_active Expired
- 1977-12-13 AU AU31501/77A patent/AU513920B2/en not_active Expired
- 1977-12-21 FR FR7738599A patent/FR2376071A1/fr not_active Withdrawn
- 1977-12-22 FI FI773907A patent/FI773907A/fi not_active Application Discontinuation
- 1977-12-23 NO NO774454A patent/NO774454L/no unknown
- 1977-12-29 IT IT31377/77A patent/IT1090383B/it active
- 1977-12-29 JP JP15861077A patent/JPS5385797A/ja active Pending
- 1977-12-30 CA CA294,197A patent/CA1085583A/en not_active Expired
- 1977-12-30 BE BE6046295A patent/BE862580A/xx unknown
-
1978
- 1978-01-02 PL PL20378078A patent/PL203780A1/xx unknown
- 1978-01-02 ES ES465669A patent/ES465669A1/es not_active Expired
- 1978-01-02 SE SE7800045A patent/SE7800045L/xx unknown
- 1978-01-02 BR BR7800006A patent/BR7800006A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO774454L (no) | 1978-07-04 |
| IT1090383B (it) | 1985-06-26 |
| PL203780A1 (pl) | 1978-08-14 |
| ES465669A1 (es) | 1978-09-16 |
| SE7800045L (sv) | 1978-07-04 |
| BE862580A (fr) | 1978-06-30 |
| DE2700009C3 (de) | 1979-11-15 |
| JPS5385797A (en) | 1978-07-28 |
| AU513920B2 (en) | 1981-01-15 |
| FI773907A (fi) | 1978-07-04 |
| BR7800006A (pt) | 1978-08-15 |
| AU3150177A (en) | 1979-06-21 |
| ZA777069B (en) | 1978-09-27 |
| GB1589945A (en) | 1981-05-20 |
| DE2700009A1 (de) | 1978-07-06 |
| DE2700009B2 (de) | 1979-03-29 |
| FR2376071A1 (fr) | 1978-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |