CA2268414A1 - Method for upgrading used sulfuric acids - Google Patents
Method for upgrading used sulfuric acids Download PDFInfo
- Publication number
- CA2268414A1 CA2268414A1 CA002268414A CA2268414A CA2268414A1 CA 2268414 A1 CA2268414 A1 CA 2268414A1 CA 002268414 A CA002268414 A CA 002268414A CA 2268414 A CA2268414 A CA 2268414A CA 2268414 A1 CA2268414 A1 CA 2268414A1
- Authority
- CA
- Canada
- Prior art keywords
- sulphuric acid
- gas phase
- process according
- spent
- aqueous phase
- 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.)
- Abandoned
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 23
- 235000011149 sulphuric acid Nutrition 0.000 claims description 46
- 239000001117 sulphuric acid Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000008346 aqueous phase Substances 0.000 claims description 12
- 239000012071 phase Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- -1 braiding Substances 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- 238000006396 nitration reaction Methods 0.000 abstract description 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
-
- 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
- Y10S159/02—Entrainment
-
- 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
-
- 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
- Y10S159/19—Acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19642328.7 | 1996-10-14 | ||
| DE19642328A DE19642328A1 (de) | 1996-10-14 | 1996-10-14 | Verfahren zur Aufkonzentrierung von gebrauchten Schwefelsäuren |
| PCT/EP1997/005380 WO1998016464A1 (de) | 1996-10-14 | 1997-10-01 | Verfahren zur aufkonzentrierung von gebrauchten schwefelsäuren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2268414A1 true CA2268414A1 (en) | 1998-04-23 |
Family
ID=7808703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002268414A Abandoned CA2268414A1 (en) | 1996-10-14 | 1997-10-01 | Method for upgrading used sulfuric acids |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6332949B1 (enExample) |
| EP (1) | EP0931015B1 (enExample) |
| JP (1) | JP2001501903A (enExample) |
| KR (1) | KR100484697B1 (enExample) |
| AU (1) | AU4942497A (enExample) |
| BR (1) | BR9712305A (enExample) |
| CA (1) | CA2268414A1 (enExample) |
| DE (2) | DE19642328A1 (enExample) |
| TW (1) | TW408082B (enExample) |
| WO (1) | WO1998016464A1 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19920695A1 (de) * | 1999-05-05 | 2000-11-16 | Metallgesellschaft Ag | Verfahren zur Aufkonzentrierung von Dünnsäure |
| DE10231314B4 (de) * | 2002-07-10 | 2008-07-31 | Plinke Gmbh | Verfahren zum Einsatz von Edelstahlkondensatoren bei Anlagen zur Strippung von Nitrierabfallsäuren |
| DE102006022447A1 (de) * | 2006-05-13 | 2007-11-15 | Bayer Materialscience Ag | Verfahren zur gekoppelten Herstellung von Chlor und Isocyanaten |
| US8679291B2 (en) | 2007-03-13 | 2014-03-25 | Heartland Technology Partners Llc | Compact wastewater concentrator using waste heat |
| US8790496B2 (en) | 2007-03-13 | 2014-07-29 | Heartland Technology Partners Llc | Compact wastewater concentrator and pollutant scrubber |
| US8741100B2 (en) | 2007-03-13 | 2014-06-03 | Heartland Technology Partners Llc | Liquid concentrator |
| US8801897B2 (en) | 2007-03-13 | 2014-08-12 | Heartland Technology Partners Llc | Compact wastewater concentrator and contaminant scrubber |
| US10005678B2 (en) | 2007-03-13 | 2018-06-26 | Heartland Technology Partners Llc | Method of cleaning a compact wastewater concentrator |
| DE102007059513A1 (de) * | 2007-12-11 | 2009-06-18 | Bayer Materialscience Ag | Verfahren zur Herstellung von Nitrobenzol durch adiabate Nitrierung |
| WO2010093958A2 (en) | 2009-02-12 | 2010-08-19 | Heartland Technology Partners Llc | Compact wastewater concentrator using waste heat |
| WO2012100074A2 (en) | 2011-01-21 | 2012-07-26 | Heartland Technology Partners Llc | Condensation plume mitigation system for exhaust stacks |
| US9296624B2 (en) | 2011-10-11 | 2016-03-29 | Heartland Technology Partners Llc | Portable compact wastewater concentrator |
| US8808497B2 (en) | 2012-03-23 | 2014-08-19 | Heartland Technology Partners Llc | Fluid evaporator for an open fluid reservoir |
| US8741101B2 (en) | 2012-07-13 | 2014-06-03 | Heartland Technology Partners Llc | Liquid concentrator |
| US8585869B1 (en) | 2013-02-07 | 2013-11-19 | Heartland Technology Partners Llc | Multi-stage wastewater treatment system |
| US9199861B2 (en) | 2013-02-07 | 2015-12-01 | Heartland Technology Partners Llc | Wastewater processing systems for power plants and other industrial sources |
| US20200376406A1 (en) | 2019-05-31 | 2020-12-03 | Heartland Technology Partners Llc. | Harmful substance removal system and method |
| CN112573488A (zh) * | 2020-10-12 | 2021-03-30 | 江苏荣信环保科技有限公司 | 一种金属制品表面废硫酸处理工艺 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143492B (de) * | 1959-08-13 | 1963-02-14 | Kestner App Evaporateurs | Verfahren zur stufenweisen Konzentration von Schwefelsaeure |
| US3789902A (en) * | 1971-06-18 | 1974-02-05 | Chemical Construction Corp | Method for concentrating dilute acidic solutions |
| US4409064A (en) * | 1978-10-16 | 1983-10-11 | Air Products And Chemicals, Inc. | Process for concentrating sulfuric acid in an evaporator |
| CA1142424A (en) * | 1978-10-16 | 1983-03-08 | Suresh M. Vora | Process for concentrating dilute solutions in an evaporator |
| EP0022181B1 (de) * | 1979-06-13 | 1983-10-12 | Bayer Ag | Verfahren und Vorrichtung zum Regenerieren von Schwefelsäure |
| DE3702541A1 (de) * | 1987-01-29 | 1988-08-11 | Bayer Ag | Pauling-kessel sowie verfahren zum aufkonzentrieren von schwefelsaeure |
| DE3922105A1 (de) * | 1989-07-05 | 1991-01-17 | Bayer Ag | Verfahren und vorrichtung zum konzentrieren metallsulfathaltiger schwefelsaeure |
| US5075097A (en) * | 1990-10-11 | 1991-12-24 | Cameron Gordon M | Method and apparatus for sulfuric acid concentration |
| US5139544A (en) * | 1990-10-22 | 1992-08-18 | Koch Engineering Company, Inc. | Gas-liquid contact column with improved mist eliminator and method |
| US5275701A (en) * | 1993-03-15 | 1994-01-04 | Air Products And Chemicals, Inc. | Process for purification and concentration of sulfuric acid |
-
1996
- 1996-10-14 DE DE19642328A patent/DE19642328A1/de not_active Ceased
-
1997
- 1997-10-01 DE DE59706449T patent/DE59706449D1/de not_active Expired - Lifetime
- 1997-10-01 AU AU49424/97A patent/AU4942497A/en not_active Abandoned
- 1997-10-01 BR BR9712305-6A patent/BR9712305A/pt not_active Application Discontinuation
- 1997-10-01 US US09/269,633 patent/US6332949B1/en not_active Expired - Lifetime
- 1997-10-01 KR KR10-1999-7003184A patent/KR100484697B1/ko not_active Expired - Lifetime
- 1997-10-01 CA CA002268414A patent/CA2268414A1/en not_active Abandoned
- 1997-10-01 WO PCT/EP1997/005380 patent/WO1998016464A1/de not_active Ceased
- 1997-10-01 JP JP10517965A patent/JP2001501903A/ja active Pending
- 1997-10-01 EP EP97912088A patent/EP0931015B1/de not_active Expired - Lifetime
- 1997-10-13 TW TW086114908A patent/TW408082B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| US6332949B1 (en) | 2001-12-25 |
| KR20000049104A (ko) | 2000-07-25 |
| AU4942497A (en) | 1998-05-11 |
| BR9712305A (pt) | 1999-08-31 |
| DE19642328A1 (de) | 1998-04-16 |
| JP2001501903A (ja) | 2001-02-13 |
| EP0931015B1 (de) | 2002-02-20 |
| DE59706449D1 (de) | 2002-03-28 |
| WO1998016464A1 (de) | 1998-04-23 |
| EP0931015A1 (de) | 1999-07-28 |
| KR100484697B1 (ko) | 2005-04-22 |
| TW408082B (en) | 2000-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |