ES2057333T3 - Procedimiento para la recuperacion de acido sulfurico. - Google Patents

Procedimiento para la recuperacion de acido sulfurico.

Info

Publication number
ES2057333T3
ES2057333T3 ES90121560T ES90121560T ES2057333T3 ES 2057333 T3 ES2057333 T3 ES 2057333T3 ES 90121560 T ES90121560 T ES 90121560T ES 90121560 T ES90121560 T ES 90121560T ES 2057333 T3 ES2057333 T3 ES 2057333T3
Authority
ES
Spain
Prior art keywords
sulfuric acid
recovery
procedure
concentrated
concentration
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
Application number
ES90121560T
Other languages
English (en)
Spanish (es)
Inventor
Gunter Dr Lailach
Rudolf Dr Gerken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6394110&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2057333(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2057333T3 publication Critical patent/ES2057333T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

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)
ES90121560T 1989-11-24 1990-11-10 Procedimiento para la recuperacion de acido sulfurico. Expired - Lifetime ES2057333T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3938915A DE3938915C1 (https=) 1989-11-24 1989-11-24

Publications (1)

Publication Number Publication Date
ES2057333T3 true ES2057333T3 (es) 1994-10-16

Family

ID=6394110

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90121560T Expired - Lifetime ES2057333T3 (es) 1989-11-24 1990-11-10 Procedimiento para la recuperacion de acido sulfurico.

Country Status (5)

Country Link
EP (1) EP0429933B1 (https=)
JP (1) JPH03177305A (https=)
CA (1) CA2030655A1 (https=)
DE (2) DE3938915C1 (https=)
ES (1) ES2057333T3 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403841C2 (de) * 1994-02-08 1997-12-04 Bayer Ag Verfahren zum Eindampfen von Gebrauchtschwefelsäure
DE19741511A1 (de) * 1997-09-20 1999-04-01 Metallgesellschaft Ag Verfahren zur Aufkonzentrierung von Dünnsäure durch Ausnutzung von Prozeßwärme in einer Zwangsumlaufverdampferanlage
GB9816464D0 (en) * 1998-07-30 1998-09-23 Tioxide Group Services Ltd Process for the concentration of dilute sulphuric acid solutions
WO2001023391A1 (en) 1999-09-28 2001-04-05 Otsuka Pharmaceutical Factory, Inc. Triazolopurine derivatives, drug compositions containing the same and adenosine a3 receptor affinitive agents
CN101891161A (zh) * 2010-06-29 2010-11-24 上海华谊微电子材料有限公司 超纯硫酸的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2352701A1 (de) * 1973-10-20 1975-06-12 Hoechst Ag Verfahren zum aufkonzentrieren salzhaltiger, verduennter schwefelsaeure
DE2618121A1 (de) * 1976-04-26 1977-11-10 Kronos Titan Gmbh Verfahren zur weitgehenden entfernung unerwuenschter metallionen, insbesondere chromionen, bei der aufkonzentrierung verduennter eisen(ii)-sulfathaltiger schwefelsaeureloesungen
EP0022181B1 (de) * 1979-06-13 1983-10-12 Bayer Ag Verfahren und Vorrichtung zum Regenerieren von Schwefelsäure
DE3327769A1 (de) * 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen Verfahren zur aufarbeitung von duennsaeuren
DE3632623A1 (de) * 1986-09-25 1988-03-31 Bayer Ag Verfahren zum aufkonzentrieren von schwefelsaeure

Also Published As

Publication number Publication date
DE3938915C1 (https=) 1991-05-08
EP0429933A1 (de) 1991-06-05
CA2030655A1 (en) 1991-05-25
JPH03177305A (ja) 1991-08-01
EP0429933B1 (de) 1993-07-28
DE59002095D1 (de) 1993-09-02

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