BR7903437A - Processo para concentracao de acido fosforico diluido - Google Patents
Processo para concentracao de acido fosforico diluidoInfo
- Publication number
- BR7903437A BR7903437A BR7903437A BR7903437A BR7903437A BR 7903437 A BR7903437 A BR 7903437A BR 7903437 A BR7903437 A BR 7903437A BR 7903437 A BR7903437 A BR 7903437A BR 7903437 A BR7903437 A BR 7903437A
- Authority
- BR
- Brazil
- Prior art keywords
- concentration
- phosphoric acid
- diluted phosphoric
- diluted
- acid
- Prior art date
Links
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
-
- 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
-
- 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
- Y10S159/08—Multieffect or multistage
-
- 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
- Y10S159/16—Vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782824010 DE2824010A1 (de) | 1978-06-01 | 1978-06-01 | Verfahren zur aufkonzentrierung von verduennter phosphorsaeure |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7903437A true BR7903437A (pt) | 1980-01-15 |
Family
ID=6040746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7903437A BR7903437A (pt) | 1978-06-01 | 1979-05-31 | Processo para concentracao de acido fosforico diluido |
Country Status (6)
Country | Link |
---|---|
US (2) | US4276116A (pt) |
EP (1) | EP0005875B1 (pt) |
JP (1) | JPS54158395A (pt) |
AU (1) | AU523428B2 (pt) |
BR (1) | BR7903437A (pt) |
DE (2) | DE2824010A1 (pt) |
Families Citing this family (11)
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 |
JPH0350477U (pt) * | 1989-09-25 | 1991-05-16 | ||
DE3935892C2 (de) * | 1989-10-27 | 1994-08-25 | Metallgesellschaft Ag | Verfahren und Vorrichtung zum Konzentrieren einer Schwefelsäure und Wasser enthaltenden Flüssigkeit |
US5275701A (en) * | 1993-03-15 | 1994-01-04 | Air Products And Chemicals, Inc. | Process for purification and concentration of sulfuric acid |
TWI301481B (en) | 2002-08-10 | 2008-10-01 | Lucite Int Uk Ltd | A catalyst system |
US8052763B2 (en) * | 2008-05-29 | 2011-11-08 | Hpd, Llc | Method for removing dissolved solids from aqueous waste streams |
CN104445119A (zh) * | 2014-12-08 | 2015-03-25 | 广西鹿寨化肥有限责任公司 | 磷酸浓缩真空控制方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1338527A (fr) * | 1962-08-16 | 1963-09-27 | Heurtey Sa | Procédé de récupération et d'utilisation de la chaleur développée dans la fabrication d'acides et notamment d'acide phosphorique et d'engrais phosphatés et installations faisant application d'un tel procédé |
US3203875A (en) * | 1962-08-20 | 1965-08-31 | Harold V Sturtevant | Apparatus for distilling water with waste heat |
DE1221202B (de) * | 1963-01-08 | 1966-07-21 | Kestner App Evaporateurs | Verfahren zum Konzentrieren von Phosphorsaeure |
BE654802A (pt) * | 1963-10-24 | |||
US3362457A (en) * | 1966-03-18 | 1968-01-09 | Chicago Bridge & Iron Co | Apparatus and method for concentrating solutions |
US3620673A (en) * | 1968-03-21 | 1971-11-16 | Parsons Co Ralph M | Method of producing sulfuric acid |
US3522150A (en) * | 1968-04-18 | 1970-07-28 | Charles W Galuska | Vacuum flash distilling apparatus |
SE337363B (pt) * | 1968-12-09 | 1971-08-09 | Svenska Cellulosa Ab | |
DE2448676A1 (de) * | 1974-10-12 | 1976-04-22 | Hoechst Ag | Verfahren zur herstellung von schwefeldioxid |
DE2700009C3 (de) * | 1977-01-03 | 1979-11-15 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Aufkonzentrierung von verdünnter Phosphorsäure |
DE2824010A1 (de) * | 1978-06-01 | 1979-12-13 | Metallgesellschaft Ag | Verfahren zur aufkonzentrierung von verduennter phosphorsaeure |
-
1978
- 1978-06-01 DE DE19782824010 patent/DE2824010A1/de not_active Withdrawn
-
1979
- 1979-05-14 DE DE7979200235T patent/DE2962944D1/de not_active Expired
- 1979-05-14 EP EP79200235A patent/EP0005875B1/de not_active Expired
- 1979-05-22 US US06/041,468 patent/US4276116A/en not_active Expired - Lifetime
- 1979-05-31 AU AU47641/79A patent/AU523428B2/en not_active Ceased
- 1979-05-31 JP JP6807979A patent/JPS54158395A/ja active Granted
- 1979-05-31 BR BR7903437A patent/BR7903437A/pt unknown
-
1980
- 1980-09-29 US US06/191,584 patent/US4330364A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2824010A1 (de) | 1979-12-13 |
EP0005875A1 (de) | 1979-12-12 |
JPS623765B2 (pt) | 1987-01-27 |
AU4764179A (en) | 1979-12-06 |
DE2962944D1 (en) | 1982-07-15 |
JPS54158395A (en) | 1979-12-14 |
EP0005875B1 (de) | 1982-05-26 |
US4276116A (en) | 1981-06-30 |
AU523428B2 (en) | 1982-07-29 |
US4330364A (en) | 1982-05-18 |
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