GB1304254A - - Google Patents

Info

Publication number
GB1304254A
GB1304254A GB2890370A GB2890370A GB1304254A GB 1304254 A GB1304254 A GB 1304254A GB 2890370 A GB2890370 A GB 2890370A GB 2890370 A GB2890370 A GB 2890370A GB 1304254 A GB1304254 A GB 1304254A
Authority
GB
United Kingdom
Prior art keywords
regenerated
june
anionic
halide ions
columns
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
Application number
GB2890370A
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 filed Critical
Publication of GB1304254A publication Critical patent/GB1304254A/en
Expired legal-status Critical Current

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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (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.
GB2890370A 1969-06-16 1970-06-15 Expired GB1304254A (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 (1)

Publication Number Publication Date
GB1304254A true GB1304254A (en) 1973-01-24

Family

ID=4348732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2890370A Expired GB1304254A (en) 1969-06-16 1970-06-15

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964811A1 (en) * 2007-02-28 2008-09-03 China Petrochemical Development Corporation Method for preparing hydroxylamine

Families Citing this family (4)

* 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964811A1 (en) * 2007-02-28 2008-09-03 China Petrochemical Development Corporation Method for preparing hydroxylamine

Also Published As

Publication number Publication date
ES380730A1 (en) 1972-08-16
DE2029117B2 (en) 1978-02-02
FR2052583A5 (en) 1971-04-09
IE34300B1 (en) 1975-04-02
BR7019749D0 (en) 1973-01-25
CH511190A (en) 1971-08-15
DE2029117A1 (en) 1970-12-23
KR780000403B1 (en) 1978-10-10
YU36133B (en) 1982-02-25
AT297748B (en) 1972-04-10
NL150079B (en) 1976-07-15
TR17373A (en) 1975-03-24
IE34300L (en) 1970-12-16
NL7008726A (en) 1970-12-18
YU151270A (en) 1981-02-28
RO61032A (en) 1976-07-15
DE2029117C3 (en) 1978-10-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee