IE34300B1 - Purification of sulphuric acid - Google Patents

Purification of sulphuric acid

Info

Publication number
IE34300B1
IE34300B1 IE770/70A IE77070A IE34300B1 IE 34300 B1 IE34300 B1 IE 34300B1 IE 770/70 A IE770/70 A IE 770/70A IE 77070 A IE77070 A IE 77070A IE 34300 B1 IE34300 B1 IE 34300B1
Authority
IE
Ireland
Prior art keywords
purification
regenerated
june
anionic
halide ions
Prior art date
Application number
IE770/70A
Other versions
IE34300L (en
Original Assignee
Inventa 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 Inventa Ag filed Critical Inventa Ag
Publication of IE34300L publication Critical patent/IE34300L/en
Publication of IE34300B1 publication Critical patent/IE34300B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/42—Separation; Purification; Stabilisation; Use of additives
    • C07C303/44—Separation; Purification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
    • 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
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/42—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

1304254 H 2 SO 4 purification INVENTA AG 15 June 1970 [16 June 1969] 28903/70 Heading C1A 55-85% w/w H 2 SO 4 is treated with halide ions and, if necessary, an oxidizing agent to convert metals and semi metals into anionic halo complexes which are removed by treatment with an anionic exchanger. Halide ions may be provided by addition of HCl or NH 4 Cl and a 10-200 times excess may be used. The starting acid is preferably 75-80% H 2 SO 4 and the process is especially useful for the removal of iron. The ion exchanger may be regenerated by treating with < 50% w/w H 2 SO 4 . A continuous process is envisaged using a plurality of columns in series, individual columns being isolated and regenerated as they become exhausted. [GB1304254A]
IE770/70A 1969-06-16 1970-06-15 Purification of sulphuric acid IE34300B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH913869A CH511190A (en) 1969-06-16 1969-06-16 Process for removing 55-85% sulfuric acid from its contamination by metals and / or semi-metals

Publications (2)

Publication Number Publication Date
IE34300L IE34300L (en) 1970-12-16
IE34300B1 true IE34300B1 (en) 1975-04-02

Family

ID=4348732

Family Applications (1)

Application Number Title Priority Date Filing Date
IE770/70A IE34300B1 (en) 1969-06-16 1970-06-15 Purification of sulphuric acid

Country Status (13)

Country Link
KR (1) KR780000403B1 (en)
AT (1) AT297748B (en)
BR (1) BR7019749D0 (en)
CH (1) CH511190A (en)
DE (1) DE2029117C3 (en)
ES (1) ES380730A1 (en)
FR (1) FR2052583A5 (en)
GB (1) GB1304254A (en)
IE (1) IE34300B1 (en)
NL (1) NL150079B (en)
RO (1) RO61032A (en)
TR (1) TR17373A (en)
YU (1) YU36133B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947561A (en) * 1973-10-02 1976-03-30 St. Joe Minerals Corporation Method of removing mercury from sulfuric acid
JPS59162108A (en) * 1983-03-03 1984-09-13 Tadao Nagai Washing of solution of sulfuric acid
DE3726047A1 (en) * 1987-08-06 1989-02-16 Bayer Ag METHOD FOR SEPARATING METAL SULFATES FROM SULFURIC ACID
US5009868A (en) * 1987-12-14 1991-04-23 East Penn Manufacturing Co., Inc. Process for the extended use of strip acid employed in the reclamation of battery acid fluid from expanded lead-acid batteries
EP1964811B1 (en) * 2007-02-28 2016-11-30 China Petrochemical Development Corporation Method for preparing hydroxylammonium phosphate

Also Published As

Publication number Publication date
AT297748B (en) 1972-04-10
CH511190A (en) 1971-08-15
BR7019749D0 (en) 1973-01-25
FR2052583A5 (en) 1971-04-09
DE2029117B2 (en) 1978-02-02
IE34300L (en) 1970-12-16
YU36133B (en) 1982-02-25
NL7008726A (en) 1970-12-18
RO61032A (en) 1976-07-15
KR780000403B1 (en) 1978-10-10
DE2029117C3 (en) 1978-10-05
ES380730A1 (en) 1972-08-16
GB1304254A (en) 1973-01-24
DE2029117A1 (en) 1970-12-23
YU151270A (en) 1981-02-28
NL150079B (en) 1976-07-15
TR17373A (en) 1975-03-24

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