BR7706419A - Processo para a concentracao de acido sulfurico residual que pode conter eventualmente sulfato de metal - Google Patents
Processo para a concentracao de acido sulfurico residual que pode conter eventualmente sulfato de metalInfo
- Publication number
- BR7706419A BR7706419A BR7706419A BR7706419A BR7706419A BR 7706419 A BR7706419 A BR 7706419A BR 7706419 A BR7706419 A BR 7706419A BR 7706419 A BR7706419 A BR 7706419A BR 7706419 A BR7706419 A BR 7706419A
- Authority
- BR
- Brazil
- Prior art keywords
- metally
- sulphate
- concentration
- contain
- sulfuric 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
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid
-
- 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
- C01B17/775—Liquid phase contacting processes or wet catalysis processes
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762643798 DE2643798A1 (de) | 1976-09-29 | 1976-09-29 | Verfahren zur aufarbeitung von abfallschwefelsaeure und eisensulfatheptahydrat zu frischsaeure |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7706419A true BR7706419A (pt) | 1978-06-06 |
Family
ID=5989127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7706419A BR7706419A (pt) | 1976-09-29 | 1977-09-27 | Processo para a concentracao de acido sulfurico residual que pode conter eventualmente sulfato de metal |
Country Status (12)
Country | Link |
---|---|
US (1) | US4153628A (pt) |
JP (1) | JPS5343080A (pt) |
AU (1) | AU2909877A (pt) |
BE (1) | BE859163A (pt) |
BR (1) | BR7706419A (pt) |
DE (1) | DE2643798A1 (pt) |
ES (1) | ES462716A1 (pt) |
FI (1) | FI772844A (pt) |
FR (1) | FR2366219A1 (pt) |
NO (1) | NO773165L (pt) |
PL (1) | PL201083A1 (pt) |
ZA (1) | ZA775798B (pt) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4376107A (en) * | 1981-06-11 | 1983-03-08 | Morgenthaler John H | Process for the regeneration of spent sulfuric acid |
US5229087A (en) * | 1987-06-04 | 1993-07-20 | Bayer Aktiengesellschaft | Process for the preparation of titanium dioxide |
DE3718674A1 (de) * | 1987-06-04 | 1988-12-15 | Bayer Ag | Verfahren zur herstellung von titandioxid |
DE3742838A1 (de) * | 1987-12-17 | 1989-07-13 | Kronos Titan Gmbh | Verfahren zur herstellung von titandioxid-pigmenten |
US5114699A (en) * | 1989-04-12 | 1992-05-19 | Freeport-Mcmoran Resource Partners | Spent alkylation acid treatment process |
EP0421629A1 (en) * | 1989-09-21 | 1991-04-10 | Chemetics International Company Ltd. | Sulphuric acid recovery process |
US5082645A (en) * | 1990-08-24 | 1992-01-21 | Chemetics International Company, Ltd. | Waste acid recovery process |
US5498790A (en) * | 1993-06-09 | 1996-03-12 | Novus International, Inc. | Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture |
US5595713A (en) * | 1994-09-08 | 1997-01-21 | The Babcock & Wilcox Company | Hydrogen peroxide for flue gas desulfurization |
US5730950A (en) * | 1996-06-25 | 1998-03-24 | Jennifer L. Klotz | Sulfuric acid waste recycling by regenerative process |
US6315975B1 (en) * | 1999-09-10 | 2001-11-13 | Rhodia Inc. | Suspension system using fumed silica |
CN1330562C (zh) * | 2005-06-30 | 2007-08-08 | 武汉方圆钛白粉有限责任公司 | 硫酸法钛白粉生产中废酸浓缩回收利用的工业化方法 |
CN106422680B (zh) * | 2016-11-22 | 2022-09-09 | 杭州东日节能技术有限公司 | 一种副产40%以上硫酸的冶炼烟气净化处理装置及方法 |
CN109368604A (zh) * | 2018-10-24 | 2019-02-22 | 四川大学 | 一种利用相平衡原理通过生成结晶水合物进行钛白废酸浓缩的工艺 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1048247A (en) * | 1911-07-25 | 1912-12-24 | Charles A Weeks | Recovery of sulfuric acid and iron oxid from ferrous-sulfate sludge. |
US1489347A (en) * | 1920-05-01 | 1924-04-08 | J P Laffey | Production of iron and steel |
US2098056A (en) * | 1936-02-15 | 1937-11-02 | Du Pont | Utilization of waste products in the manufacture of titanium compounds from titanium ores |
US2255445A (en) * | 1938-04-25 | 1941-09-09 | Eila Van Gorder | Production of sulphuric acid and iron oxide from waste pickling acid |
US2304178A (en) * | 1939-05-15 | 1942-12-08 | Harmon E Keyes | Sulphating process and apparatus therefor |
US3086846A (en) * | 1958-03-17 | 1963-04-23 | North American Coal Corp | Process for the recovery of sulfuric acid from metallic sulfates |
US2946659A (en) * | 1958-05-15 | 1960-07-26 | Puriron And Chemicals Inc | Production of new sulfuric acid from waste pickle liquor |
US3387927A (en) * | 1963-12-03 | 1968-06-11 | Battelle Development Corp | Method of regenerating waste pickle liquors |
GB1272407A (en) * | 1968-08-26 | 1972-04-26 | Prenco Mfg Company | Recovering values from waste pickle liquor |
DE2037619B2 (de) * | 1970-07-29 | 1972-07-13 | Chemiebau Dr. A. Zieren GmbH & Co KG, 5000 Köln | Verfahren zur spaltung von schwefelsaeure |
US3944657A (en) * | 1971-02-19 | 1976-03-16 | Davy Powergas Gmbh | Sulfur dioxide from by-product ammonium sulfate solutions |
US3713786A (en) * | 1971-12-06 | 1973-01-30 | New Jersey Zinc Co | Evaporative sulfuric acid recovery from sulfuric acids containing sulfates |
DE2210637B2 (de) * | 1972-03-06 | 1975-12-04 | Davy Powergas Gmbh, 5000 Koeln | Verfahren zur Herstellung eines Schwefeldioxid enthaltenden Gases aus einer bei der TitanweiBherstellung anfallenden Dünnsäure |
DE2415883A1 (de) * | 1974-04-02 | 1975-10-09 | Krupp Gmbh | Verfahren zur gewinnung von konzentrierter schwefelsaeure und schwefelsaeurefreien, trockenen, granulierten salzen aus salzhaltiger schwefelsaeure |
DE2519928C3 (de) * | 1975-05-05 | 1981-04-02 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Herstellung von Schwefelsäure |
-
1976
- 1976-09-29 DE DE19762643798 patent/DE2643798A1/de active Pending
-
1977
- 1977-09-14 NO NO773165A patent/NO773165L/no unknown
- 1977-09-26 AU AU29098/77A patent/AU2909877A/en active Pending
- 1977-09-26 US US05/836,465 patent/US4153628A/en not_active Expired - Lifetime
- 1977-09-27 BR BR7706419A patent/BR7706419A/pt unknown
- 1977-09-27 JP JP11523677A patent/JPS5343080A/ja active Pending
- 1977-09-27 FI FI772844A patent/FI772844A/fi not_active Application Discontinuation
- 1977-09-27 PL PL20108377A patent/PL201083A1/xx unknown
- 1977-09-28 ES ES462716A patent/ES462716A1/es not_active Expired
- 1977-09-28 ZA ZA00775798A patent/ZA775798B/xx unknown
- 1977-09-29 BE BE2056298A patent/BE859163A/xx unknown
- 1977-09-29 FR FR7729363A patent/FR2366219A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU2909877A (en) | 1979-04-05 |
ES462716A1 (es) | 1978-05-16 |
DE2643798A1 (de) | 1978-04-06 |
PL201083A1 (pl) | 1978-07-17 |
FI772844A (fi) | 1978-03-30 |
FR2366219A1 (fr) | 1978-04-28 |
JPS5343080A (en) | 1978-04-18 |
BE859163A (fr) | 1978-03-29 |
US4153628A (en) | 1979-05-08 |
ZA775798B (en) | 1978-08-30 |
NO773165L (no) | 1978-03-30 |
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