RO76235A - Procedeu pentru concentrarea prin evaporare a unor solutii apoase de acid sulfuric - Google Patents
Procedeu pentru concentrarea prin evaporare a unor solutii apoase de acid sulfuricInfo
- Publication number
- RO76235A RO76235A RO7895225A RO9522578A RO76235A RO 76235 A RO76235 A RO 76235A RO 7895225 A RO7895225 A RO 7895225A RO 9522578 A RO9522578 A RO 9522578A RO 76235 A RO76235 A RO 76235A
- Authority
- RO
- Romania
- Prior art keywords
- sulfuric acid
- aqueous solutions
- evaporation concentration
- evaporation
- concentration
- 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
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2779777A IT1086096B (it) | 1977-09-21 | 1977-09-21 | Procedimento per la concentrazione di soluzioni acquose di acido solforico |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO76235A true RO76235A (ro) | 1981-04-30 |
Family
ID=11222349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO7895225A RO76235A (ro) | 1977-09-21 | 1978-09-19 | Procedeu pentru concentrarea prin evaporare a unor solutii apoase de acid sulfuric |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5461094A (ro) |
| CH (1) | CH638465A5 (ro) |
| DE (1) | DE2807380A1 (ro) |
| FR (1) | FR2403973A1 (ro) |
| GB (1) | GB2004469B (ro) |
| IT (1) | IT1086096B (ro) |
| NL (1) | NL7809474A (ro) |
| RO (1) | RO76235A (ro) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH672633A5 (ro) * | 1987-11-23 | 1989-12-15 | Escher Wyss Ag | |
| DE4403841C2 (de) * | 1994-02-08 | 1997-12-04 | Bayer Ag | Verfahren zum Eindampfen von Gebrauchtschwefelsäure |
| DE4403840C2 (de) * | 1994-02-08 | 1997-12-04 | Bayer Ag | Verfahren zur Rückgewinnung von Schwefelsäure aus metallsulfathaltigen Gebrauchtsäuren |
| AU709404B2 (en) * | 1995-07-24 | 1999-08-26 | Kerr-Mcgee Pigments Gmbh & Co. Kg | Process for the recovery of sulphuric acid from spent acids containing metal sulphates |
| JP4737670B2 (ja) * | 2005-03-30 | 2011-08-03 | 株式会社ササクラ | カルシウム及び硫酸を含む廃水の処理方法及びその装置 |
| WO2008003297A2 (de) * | 2006-07-03 | 2008-01-10 | Lailach Guenter | Verfahren und anlage zum konzentrieren metallsulfathaltiger schwefelsäure |
| CN110104617A (zh) * | 2019-04-24 | 2019-08-09 | 成都先进金属材料产业技术研究院有限公司 | 利用硫酸铝铵浓缩钛白废酸的方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2078088A (en) * | 1935-11-22 | 1937-04-20 | Mantius | Process of recovering sulphuric acid from sulphuric acid solutions of sulphates |
| FR1076258A (fr) * | 1952-03-25 | 1954-10-25 | C D Patents Ltd | Procédé pour la récupération de l'acide sulfurique et des sulfates inorganiques à partir des liqueurs usées diluées |
| DE957473C (de) * | 1953-06-02 | 1957-02-07 | Bayer Ag | Verfahren zum Kristallisieren von Stoffen, die mit verschiedenen Mengen Kristallwasser kristallisieren koennen, in kristallwasserfreier oder kristallwasserarmer Form |
| DE1131193B (de) * | 1960-10-14 | 1962-06-14 | Bayer Ag | Verfahren zum Einengen und Entsalzen verduennter, salzhaltiger Schwefelsaeure |
| JPS5314429B2 (ro) * | 1973-05-11 | 1978-05-17 | ||
| FR2328658A1 (fr) * | 1975-10-20 | 1977-05-20 | Pechiney Aluminium | Perfectionnements a l'epuration de solutions sulfuriques diluees |
-
1977
- 1977-09-21 IT IT2779777A patent/IT1086096B/it active
-
1978
- 1978-02-21 DE DE19782807380 patent/DE2807380A1/de active Granted
- 1978-09-18 NL NL7809474A patent/NL7809474A/xx not_active Application Discontinuation
- 1978-09-19 JP JP11416778A patent/JPS5461094A/ja active Granted
- 1978-09-19 RO RO7895225A patent/RO76235A/ro unknown
- 1978-09-20 CH CH981178A patent/CH638465A5/de not_active IP Right Cessation
- 1978-09-21 GB GB7837625A patent/GB2004469B/en not_active Expired
- 1978-09-21 FR FR7827059A patent/FR2403973A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335320B2 (ro) | 1988-07-14 |
| IT1086096B (it) | 1985-05-28 |
| DE2807380A1 (de) | 1979-03-29 |
| FR2403973A1 (fr) | 1979-04-20 |
| GB2004469B (en) | 1982-07-14 |
| FR2403973B1 (ro) | 1983-01-28 |
| DE2807380C2 (ro) | 1990-08-09 |
| NL7809474A (nl) | 1979-03-23 |
| JPS5461094A (en) | 1979-05-17 |
| GB2004469A (en) | 1979-04-04 |
| CH638465A5 (de) | 1983-09-30 |
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