GB639235A - Process of activating the oxidising power of chlorite solutions - Google Patents
Process of activating the oxidising power of chlorite solutionsInfo
- Publication number
- GB639235A GB639235A GB30747/47A GB3074747A GB639235A GB 639235 A GB639235 A GB 639235A GB 30747/47 A GB30747/47 A GB 30747/47A GB 3074747 A GB3074747 A GB 3074747A GB 639235 A GB639235 A GB 639235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metalloid
- chlorite
- activated
- solutions
- chlorides
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
- D06L4/26—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide combined with specific additives
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
Bleaching solutions comprising chlorites are activated by adding a metalloid of Group V or VI of the Mendelieff classification, or carbon, in finely-divided state and in quantity sufficient to acidify the solution by forming, at the expense of a small amount of the chlorite, the acid corresponding to the metalloid used, said acid then decomposing the chlorite and freeing chlorine dioxide. The metalloid may be freed in situ by the action of the chlorite on a compound adapted to generate the metalloid. Examples are given in which chlorite solutions are activated by adding red phosphorus, sodium thiosulphate, arsenic sulphide and ammonium and potassium thiocyanates. Other compounds mentioned capable of liberating the metalloid, are sulphur chlorides, sulphuryl chlorides and polysulphides.ALSO:Bleaching solutions comprising chlorites are activated by adding a metalloid of Group V or VI of the Mendelieff classification, or carbon, in finely-divided state and in quantity sufficient to acidify the solution by forming, at the expense of a small amount of the chlorite, the acid corresponding to the metalloid used, said acid then decomposing the chlorite and freeing chlorine dioxide. The metalloid may be freed in situ by the action of the chlorite on a compound adapted to generate the metalloid. Examples are given in which chlorite solutions are activated by adding red phosphorus, sodium thiosulphate, arsenic sulphide and ammonium and potassium thiocyanates. Other compounds mentioned capable of liberating the metalloids are sulphur chlorides, sulphuryl chlorides and polysulphides.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE274232X | 1946-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639235A true GB639235A (en) | 1950-06-21 |
Family
ID=3866955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30747/47A Expired GB639235A (en) | 1946-12-20 | 1947-11-19 | Process of activating the oxidising power of chlorite solutions |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE470021A (en) |
| CH (1) | CH274232A (en) |
| DE (1) | DE855838C (en) |
| FR (1) | FR955437A (en) |
| GB (1) | GB639235A (en) |
| LU (1) | LU28651A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641730A1 (en) * | 1989-01-16 | 1990-07-20 | Malfait Bruno | Method for bleaching and decoloring dark woods, and more particularly exotic woods |
-
0
- BE BE470021D patent/BE470021A/xx unknown
- FR FR955437D patent/FR955437A/fr not_active Expired
- LU LU28651D patent/LU28651A1/xx unknown
-
1947
- 1947-11-19 GB GB30747/47A patent/GB639235A/en not_active Expired
- 1947-11-24 CH CH274232D patent/CH274232A/en unknown
-
1949
- 1949-10-25 DE DES250A patent/DE855838C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| LU28651A1 (en) | |
| FR955437A (en) | 1950-01-14 |
| CH274232A (en) | 1951-03-31 |
| BE470021A (en) | |
| DE855838C (en) | 1952-11-17 |
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