FR2376071A1 - Procede de concentration d'acide phosphorique dilue - Google Patents
Procede de concentration d'acide phosphorique dilueInfo
- Publication number
- FR2376071A1 FR2376071A1 FR7738599A FR7738599A FR2376071A1 FR 2376071 A1 FR2376071 A1 FR 2376071A1 FR 7738599 A FR7738599 A FR 7738599A FR 7738599 A FR7738599 A FR 7738599A FR 2376071 A1 FR2376071 A1 FR 2376071A1
- Authority
- FR
- France
- Prior art keywords
- phosphoric acid
- concentration
- heat
- acid
- plant
- 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.)
- Withdrawn
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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
Abstract
Procédé de concentration d'acide phosphorique dilué dans lequel cet acide est chauffé par échange thermique indirect à une température inférieure à son point d'ébullition et est ensuite pulvérisé en contact direct avec des gaz chauds. Afin d'éviter la nécessité de mise en oeuvre d'énergie primaire ou de vapeur pour réaliser la concentration, on combine ce procédé avec la fabrication d'acide sulfurique par le procédé de contact dont on retire de la chaleur par échange thermique, ladite chaleur étant transférée aux fluides de l'installation de concentration d'acide phosphorique. Le procédé peut s'appliquer au départ de gaz contenant du SO2 produits par combustion de soufre ou provenant d'une installation de grillage ou d'une usine pyrométallurgique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2700009A DE2700009C3 (de) | 1977-01-03 | 1977-01-03 | Verfahren zur Aufkonzentrierung von verdünnter Phosphorsäure |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2376071A1 true FR2376071A1 (fr) | 1978-07-28 |
Family
ID=5998041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7738599A Withdrawn FR2376071A1 (fr) | 1977-01-03 | 1977-12-21 | Procede de concentration d'acide phosphorique dilue |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5385797A (fr) |
AU (1) | AU513920B2 (fr) |
BE (1) | BE862580A (fr) |
BR (1) | BR7800006A (fr) |
CA (1) | CA1085583A (fr) |
DE (1) | DE2700009C3 (fr) |
ES (1) | ES465669A1 (fr) |
FI (1) | FI773907A (fr) |
FR (1) | FR2376071A1 (fr) |
GB (1) | GB1589945A (fr) |
IT (1) | IT1090383B (fr) |
NO (1) | NO774454L (fr) |
PL (1) | PL203780A1 (fr) |
SE (1) | SE7800045L (fr) |
ZA (1) | ZA777069B (fr) |
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 (fr) * | 1981-04-10 | 1983-05-24 | Gordon M. Cameron | Methode de recuperation d'energie et systeme pour la fabrication combinee d'acide sulfurique et d'acide phosphorique |
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/fr not_active Expired
- 1977-12-30 BE BE6046295A patent/BE862580A/fr unknown
-
1978
- 1978-01-02 PL PL20378078A patent/PL203780A1/xx unknown
- 1978-01-02 BR BR7800006A patent/BR7800006A/pt unknown
- 1978-01-02 SE SE7800045A patent/SE7800045L/xx unknown
- 1978-01-02 ES ES465669A patent/ES465669A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2700009A1 (de) | 1978-07-06 |
DE2700009B2 (de) | 1979-03-29 |
JPS5385797A (en) | 1978-07-28 |
PL203780A1 (pl) | 1978-08-14 |
ZA777069B (en) | 1978-09-27 |
BR7800006A (pt) | 1978-08-15 |
DE2700009C3 (de) | 1979-11-15 |
AU513920B2 (en) | 1981-01-15 |
IT1090383B (it) | 1985-06-26 |
ES465669A1 (es) | 1978-09-16 |
FI773907A (fi) | 1978-07-04 |
BE862580A (fr) | 1978-06-30 |
NO774454L (no) | 1978-07-04 |
CA1085583A (fr) | 1980-09-16 |
GB1589945A (en) | 1981-05-20 |
SE7800045L (sv) | 1978-07-04 |
AU3150177A (en) | 1979-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |