ES2055244T3 - Procedimiento para concentrar acido sulfurico que contiene sulfatos metalicos. - Google Patents
Procedimiento para concentrar acido sulfurico que contiene sulfatos metalicos.Info
- Publication number
- ES2055244T3 ES2055244T3 ES90115375T ES90115375T ES2055244T3 ES 2055244 T3 ES2055244 T3 ES 2055244T3 ES 90115375 T ES90115375 T ES 90115375T ES 90115375 T ES90115375 T ES 90115375T ES 2055244 T3 ES2055244 T3 ES 2055244T3
- Authority
- ES
- Spain
- Prior art keywords
- sulfuric acid
- metallic sulphates
- evaporators
- sulphates
- vapors
- 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 - Lifetime
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
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
-
- 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
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/01—Waste acid containing iron
- Y10S423/02—Sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
EL ACIDO SULFURICO SE RECUPERA A PARTIR DE ACIDOS DILUIDOS (17) QUE CONTIENEN SULFATOS METALICOS, POR CONCENTRACION EN EVAPORADORES DE VACIO (1,4,7) Y SEPARACION DE LOS SULFATOS METALICOS DE LAS SUSPENSIONES (32) PRODUCIDAS AL EVAPORAR. EN ESTE PROCESO, LOS VAPORES (34) QUE SALEN DE LOS EVAPORADORES (1,4,7) Y QUE CONTIENEN ACIDO SULFURICO, CON CONTENIDOS DE SULFATOS METALICOS Y SULFATOS METALICOS SOLIDOS, SON CONDENSADOS POR CONTACTO DIRECTO CON ACIDO SULFURICO Y CON EL CONDENSADO DE VAPORES (10) QUE CONTIENEN ACIDO SULFURICO CON SULFATOS METALICOS EN DISOLUCION. LA REFRIGERACION DE ESTE CONDENSADO DE VAPORES (37) QUE, CIRCULANDO EN CIRCUITO CERRADO, SE UTILIZA COMO MEDIO DE REGRIGERACION, TIENE LUGAR POR EVAPORACION DE AGUA EN UN EVAPORADOR DE FLASH (12) AL TIEMPO QUE SE CONCENTRA EL ACIDO SULFURICO Y LOS SULFUROS METALICOS. PREFERENTEMENTE, LOS VAPORES CONCENTRADOS (37), CON UN CONTENIDO DE ACIDO SULFURICO DEL 1 AL 30 % EN PESO, SE SEPARAN DEL CIRCUITO DE REFRIGERACION, SIENDO LLEVADOS DENUEVO A LOS EVAPORADORES (1,4,7).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3927751A DE3927751A1 (de) | 1989-08-23 | 1989-08-23 | Verfahren zum konzentrieren metallsulfathaltiger schwefelsaeure |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2055244T3 true ES2055244T3 (es) | 1994-08-16 |
Family
ID=6387647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90115375T Expired - Lifetime ES2055244T3 (es) | 1989-08-23 | 1990-08-10 | Procedimiento para concentrar acido sulfurico que contiene sulfatos metalicos. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5061472A (es) |
EP (1) | EP0418544B1 (es) |
JP (1) | JP2889337B2 (es) |
CA (1) | CA2023688A1 (es) |
DE (2) | DE3927751A1 (es) |
ES (1) | ES2055244T3 (es) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4029737C1 (es) * | 1990-09-20 | 1991-12-05 | Metallgesellschaft Ag, 6000 Frankfurt, De | |
JP2968877B2 (ja) * | 1991-11-08 | 1999-11-02 | 日鉄鉱業株式会社 | 金属硫酸塩含有の廃硫酸から硫酸を回収する方法 |
US5275701A (en) * | 1993-03-15 | 1994-01-04 | Air Products And Chemicals, Inc. | Process for purification and concentration of sulfuric acid |
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 |
US5603839A (en) * | 1995-09-18 | 1997-02-18 | Cecebe Technologies Inc. | Process for the recovery of waste sulphuric acid |
GB9816464D0 (en) * | 1998-07-30 | 1998-09-23 | Tioxide Group Services Ltd | Process for the concentration of dilute sulphuric acid solutions |
DE19920695A1 (de) * | 1999-05-05 | 2000-11-16 | Metallgesellschaft Ag | Verfahren zur Aufkonzentrierung von Dünnsäure |
IL147144A0 (en) * | 1999-06-18 | 2002-08-14 | Advanced Res & Tech Inst | Cardiomyocytes with enhanced proliferative potential and methods for preparing and using the same |
US20030116290A1 (en) * | 2001-12-20 | 2003-06-26 | 3M Innovative Properties Company | Continuous process for controlled evaporation of black liquor |
US6869501B2 (en) | 2001-12-20 | 2005-03-22 | 3M Innovative Properties Company | Continuous process for controlled concentration of colloidal solutions |
CN105399168B (zh) * | 2015-12-18 | 2018-01-02 | 许达人 | 含硫酸及其盐溶液的多效蒸发浓缩装置及工艺 |
CN105858621B (zh) * | 2016-04-12 | 2017-10-27 | 钮德明 | 一种采用气液接触法浓缩钛白废酸的方法 |
WO2018015138A1 (en) * | 2016-07-21 | 2018-01-25 | Haldor Topsøe A/S | Method for production of sulfuric acid from sulfur containing feeds with gas quenching |
CN108751147A (zh) * | 2018-09-18 | 2018-11-06 | 攀枝花学院 | 太阳能与空气能互补的钛白废酸浓缩装置 |
CN110255506A (zh) * | 2019-07-15 | 2019-09-20 | 湖北兴福电子材料有限公司 | 一种电子级硫酸生产的装置与方法 |
CN113277480A (zh) * | 2021-06-08 | 2021-08-20 | 安徽金星钛白(集团)有限公司 | 一种钛白粉废酸处理方法 |
CN114455552B (zh) * | 2022-03-07 | 2023-03-31 | 盛隆资源再生(无锡)有限公司 | 一种高cod废酸的处理装置和处理方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE972412C (de) * | 1951-06-01 | 1959-07-16 | Metallgesellschaft Ag | Verfahren zum Eindampfen von Schwefelsaeure oder sich aehnlich verhaltenden Loesungen |
FR1241856A (fr) * | 1959-08-13 | 1960-09-23 | Kestner App Evaporateurs | Procédé de concentration d'acide sulfurique à haute teneur |
US3948624A (en) * | 1974-02-04 | 1976-04-06 | Union Carbide Corporation | Removal of sulfur compounds from gas streams |
DE2632989A1 (de) * | 1976-07-22 | 1978-02-02 | Hoechst Ag | Verfahren zum regenerieren von schwefelsaeure |
DE2656236C3 (de) * | 1976-12-11 | 1980-11-06 | Hoechst Ag, 6000 Frankfurt | Verfahren zum Regenerieren von Abfallschwefelsäure |
DE3327769A1 (de) * | 1983-08-02 | 1985-02-14 | Bayer Ag, 5090 Leverkusen | Verfahren zur aufarbeitung von duennsaeuren |
DE3511479A1 (de) * | 1985-03-14 | 1986-09-18 | Bayer Ag, 5090 Leverkusen | Verfahren zur rezirkulierung metallsulfathaltiger schwefelsaeure |
-
1989
- 1989-08-23 DE DE3927751A patent/DE3927751A1/de not_active Withdrawn
-
1990
- 1990-08-01 US US07/562,094 patent/US5061472A/en not_active Expired - Fee Related
- 1990-08-10 ES ES90115375T patent/ES2055244T3/es not_active Expired - Lifetime
- 1990-08-10 DE DE9090115375T patent/DE59001358D1/de not_active Expired - Fee Related
- 1990-08-10 EP EP90115375A patent/EP0418544B1/de not_active Expired - Lifetime
- 1990-08-15 JP JP2214447A patent/JP2889337B2/ja not_active Expired - Fee Related
- 1990-08-21 CA CA002023688A patent/CA2023688A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPH0393610A (ja) | 1991-04-18 |
EP0418544A1 (de) | 1991-03-27 |
CA2023688A1 (en) | 1991-02-24 |
DE59001358D1 (de) | 1993-06-09 |
DE3927751A1 (de) | 1991-02-28 |
US5061472A (en) | 1991-10-29 |
JP2889337B2 (ja) | 1999-05-10 |
EP0418544B1 (de) | 1993-05-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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