IT1061342B - Procedimento per depurare acido solforico contenente acido acetico - Google Patents

Procedimento per depurare acido solforico contenente acido acetico

Info

Publication number
IT1061342B
IT1061342B IT49879/76A IT4987976A IT1061342B IT 1061342 B IT1061342 B IT 1061342B IT 49879/76 A IT49879/76 A IT 49879/76A IT 4987976 A IT4987976 A IT 4987976A IT 1061342 B IT1061342 B IT 1061342B
Authority
IT
Italy
Prior art keywords
procedure
containing acetic
acetic acid
sulfuric acid
purifying sulfuric
Prior art date
Application number
IT49879/76A
Other languages
English (en)
Original Assignee
Hoechst 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
Priority claimed from DE19752526241 external-priority patent/DE2526241C3/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of IT1061342B publication Critical patent/IT1061342B/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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT49879/76A 1975-06-12 1976-06-10 Procedimento per depurare acido solforico contenente acido acetico IT1061342B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752526241 DE2526241C3 (de) 1975-06-12 Verfahren zur Reinigung von essigsäurehaltiger Schwefelsäure

Publications (1)

Publication Number Publication Date
IT1061342B true IT1061342B (it) 1983-02-28

Family

ID=5948908

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49879/76A IT1061342B (it) 1975-06-12 1976-06-10 Procedimento per depurare acido solforico contenente acido acetico

Country Status (10)

Country Link
US (1) US4045295A (it)
JP (1) JPS5912604B2 (it)
BE (1) BE842840A (it)
CA (1) CA1060632A (it)
CH (1) CH599047A5 (it)
FR (1) FR2314140A1 (it)
GB (1) GB1491993A (it)
IT (1) IT1061342B (it)
NL (1) NL182303C (it)
SE (1) SE403096B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936955A (en) * 1988-08-12 1990-06-26 Alameda Instruments, Inc. Hydrofluoric acid reprocessing for semiconductor standards
US4980032A (en) * 1988-08-12 1990-12-25 Alameda Instruments, Inc. Distillation method and apparatus for reprocessing sulfuric acid
US5061348A (en) * 1988-08-12 1991-10-29 Alameda Instruments Sulfuric acid reprocessor with continuous purge of second distillation vessel
SE464299B (sv) * 1988-11-16 1991-04-08 Boliden Contech Ab Foerfarande foer avfaergning av svavelsyra framstaelld enligt kontaktmetoden
JPH0524307U (ja) * 1991-09-04 1993-03-30 リヨービ株式会社 自動カンナ盤
US5393503A (en) * 1991-09-09 1995-02-28 Occidental Chemical Corporation Process for making chromic acid
KR100861321B1 (ko) 2007-06-14 2008-10-01 한국원자력연구원 원자력 수소 생산용 황산 농축 방법 및 황산 농축장치

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635664A (en) * 1969-08-20 1972-01-18 Daido Chem Eng Corp REGENERATION OF HYDROCHLORIC ACID PICKLING WASTE BY H{11 SO{11 {0 ADDITION, DISTILLATION AND FeSO{11 {0 Precipitation

Also Published As

Publication number Publication date
NL182303B (nl) 1987-09-16
JPS51151294A (en) 1976-12-25
FR2314140B1 (it) 1980-10-31
FR2314140A1 (fr) 1977-01-07
JPS5912604B2 (ja) 1984-03-24
CA1060632A (en) 1979-08-21
BE842840A (fr) 1976-12-13
DE2526241A1 (de) 1976-12-16
SE403096B (sv) 1978-07-31
NL182303C (nl) 1988-02-16
CH599047A5 (it) 1978-05-12
DE2526241B2 (de) 1977-06-23
NL7606230A (nl) 1976-12-14
SE7602714L (sv) 1976-12-13
GB1491993A (en) 1977-11-16
US4045295A (en) 1977-08-30

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