IT1086097B - Procedimento per preparare soluzioni acquose limpide di acido solforico - Google Patents

Procedimento per preparare soluzioni acquose limpide di acido solforico

Info

Publication number
IT1086097B
IT1086097B IT27798/77A IT2779877A IT1086097B IT 1086097 B IT1086097 B IT 1086097B IT 27798/77 A IT27798/77 A IT 27798/77A IT 2779877 A IT2779877 A IT 2779877A IT 1086097 B IT1086097 B IT 1086097B
Authority
IT
Italy
Prior art keywords
procedure
sulfuric acid
aqueous solutions
clean aqueous
preparing clean
Prior art date
Application number
IT27798/77A
Other languages
English (en)
Inventor
Franco Capello
Mario Mortigliengo
Erich Schmoll
Eduard Kratz
Original Assignee
Montedison Spa
Escher Wyss 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
Application filed by Montedison Spa, Escher Wyss Ag filed Critical Montedison Spa
Priority to IT27798/77A priority Critical patent/IT1086097B/it
Priority to DE2807394A priority patent/DE2807394C2/de
Priority to NL7809475A priority patent/NL190780C/xx
Priority to RO7895224A priority patent/RO76234A/ro
Priority to JP11416878A priority patent/JPS5461095A/ja
Priority to US05/943,995 priority patent/US4169054A/en
Priority to CH981278A priority patent/CH638466A5/de
Priority to FR7827055A priority patent/FR2403972A1/fr
Priority to GB7837626A priority patent/GB2004853B/en
Application granted granted Critical
Publication of IT1086097B publication Critical patent/IT1086097B/it

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
    • 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
    • Y10S159/19—Acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
IT27798/77A 1977-09-21 1977-09-21 Procedimento per preparare soluzioni acquose limpide di acido solforico IT1086097B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT27798/77A IT1086097B (it) 1977-09-21 1977-09-21 Procedimento per preparare soluzioni acquose limpide di acido solforico
DE2807394A DE2807394C2 (de) 1977-09-21 1978-02-21 Verfahren zum Konzentrieren und Reinigen von wäßrigen Schwefelsäurelösungen
NL7809475A NL190780C (nl) 1977-09-21 1978-09-18 Werkwijze voor het concentreren en zuiveren van waterige zwavelzuuroplossingen.
RO7895224A RO76234A (ro) 1977-09-21 1978-09-19 Procedeu pentru concentrarea si purificarea unor solutii apoase de acid sulfuric
JP11416878A JPS5461095A (en) 1977-09-21 1978-09-19 Method of concentrating and purifying sulfuric acid aqueous solution
US05/943,995 US4169054A (en) 1977-09-21 1978-09-20 Process for concentrating and purifying aqueous sulphuric acid solutions
CH981278A CH638466A5 (de) 1977-09-21 1978-09-20 Verfahren zum konzentrieren und reinigen von waessrigen schwefelsaeureloesungen.
FR7827055A FR2403972A1 (fr) 1977-09-21 1978-09-21 Procede de concentration et de purification de solutions aqueuses d'acide sulfurique
GB7837626A GB2004853B (en) 1977-09-21 1978-09-21 Concentrating suphuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT27798/77A IT1086097B (it) 1977-09-21 1977-09-21 Procedimento per preparare soluzioni acquose limpide di acido solforico

Publications (1)

Publication Number Publication Date
IT1086097B true IT1086097B (it) 1985-05-28

Family

ID=11222353

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27798/77A IT1086097B (it) 1977-09-21 1977-09-21 Procedimento per preparare soluzioni acquose limpide di acido solforico

Country Status (9)

Country Link
US (1) US4169054A (it)
JP (1) JPS5461095A (it)
CH (1) CH638466A5 (it)
DE (1) DE2807394C2 (it)
FR (1) FR2403972A1 (it)
GB (1) GB2004853B (it)
IT (1) IT1086097B (it)
NL (1) NL190780C (it)
RO (1) RO76234A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672633A5 (it) * 1987-11-23 1989-12-15 Escher Wyss Ag
US6106795A (en) 1997-01-29 2000-08-22 Waterworks International Liquid hydrate regeneration of contaminated acids
US6004433A (en) * 1997-02-03 1999-12-21 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes George Claude Purification of electronic specialty gases by vapor phase transfilling
AU6945498A (en) * 1997-03-31 1998-10-22 Waterworks International, Inc. Sulfuric acid purification process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1960348A (en) * 1931-08-27 1934-05-29 Ig Farbenindustrie Ag Filtration of acid sludge
US2864670A (en) * 1955-04-11 1958-12-16 Nat Lead Co Process for recovering acid from waste acid liquors
BE567504A (it) * 1957-05-09
NL258598A (it) * 1959-12-03
US3211538A (en) * 1961-05-31 1965-10-12 Chemical Construction Corp Concentration of sulfuric acid pickle liquor

Also Published As

Publication number Publication date
GB2004853A (en) 1979-04-11
CH638466A5 (de) 1983-09-30
NL190780B (nl) 1994-03-16
NL7809475A (nl) 1979-03-23
DE2807394C2 (de) 1986-10-30
RO76234A (ro) 1981-04-30
DE2807394A1 (de) 1979-03-29
FR2403972A1 (fr) 1979-04-20
US4169054A (en) 1979-09-25
JPS5461095A (en) 1979-05-17
NL190780C (nl) 1994-08-16
JPS6335562B2 (it) 1988-07-15
GB2004853B (en) 1982-05-26
FR2403972B1 (it) 1982-10-08

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940831