IE34300B1 - Purification of sulphuric acid - Google Patents
Purification of sulphuric acidInfo
- 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
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Manufacture And Refinement Of Metals (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]
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)
| 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 |
-
1969
- 1969-06-16 CH CH913869A patent/CH511190A/en not_active IP Right Cessation
-
1970
- 1970-05-28 RO RO63488A patent/RO61032A/ro unknown
- 1970-06-12 DE DE2029117A patent/DE2029117C3/en not_active Expired
- 1970-06-13 ES ES380730A patent/ES380730A1/en not_active Expired
- 1970-06-15 TR TR17373A patent/TR17373A/en unknown
- 1970-06-15 BR BR219749/70A patent/BR7019749D0/en unknown
- 1970-06-15 KR KR7000837A patent/KR780000403B1/en not_active Expired
- 1970-06-15 IE IE770/70A patent/IE34300B1/en unknown
- 1970-06-15 GB GB2890370A patent/GB1304254A/en not_active Expired
- 1970-06-15 NL NL707008726A patent/NL150079B/en not_active IP Right Cessation
- 1970-06-15 AT AT536570A patent/AT297748B/en not_active IP Right Cessation
- 1970-06-15 FR FR7021903A patent/FR2052583A5/fr not_active Expired
- 1970-08-15 YU YU1512/70A patent/YU36133B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2029117C3 (en) | 1978-10-05 |
| BR7019749D0 (en) | 1973-01-25 |
| NL150079B (en) | 1976-07-15 |
| DE2029117A1 (en) | 1970-12-23 |
| YU151270A (en) | 1981-02-28 |
| TR17373A (en) | 1975-03-24 |
| KR780000403B1 (en) | 1978-10-10 |
| ES380730A1 (en) | 1972-08-16 |
| NL7008726A (en) | 1970-12-18 |
| IE34300L (en) | 1970-12-16 |
| CH511190A (en) | 1971-08-15 |
| YU36133B (en) | 1982-02-25 |
| GB1304254A (en) | 1973-01-24 |
| DE2029117B2 (en) | 1978-02-02 |
| RO61032A (en) | 1976-07-15 |
| FR2052583A5 (en) | 1971-04-09 |
| AT297748B (en) | 1972-04-10 |
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