GB1505095A - Process for the manufacture of activated carbon - Google Patents
Process for the manufacture of activated carbonInfo
- Publication number
- GB1505095A GB1505095A GB46465/75A GB4646575A GB1505095A GB 1505095 A GB1505095 A GB 1505095A GB 46465/75 A GB46465/75 A GB 46465/75A GB 4646575 A GB4646575 A GB 4646575A GB 1505095 A GB1505095 A GB 1505095A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- cloth
- frame
- lid
- inert gas
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000004744 fabric Substances 0.000 abstract 11
- 238000001816 cooling Methods 0.000 abstract 4
- 239000011261 inert gas Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 239000002841 Lewis acid Substances 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229920000297 Rayon Polymers 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 238000010923 batch production Methods 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 150000007517 lewis acids Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 239000003039 volatile agent Substances 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/382—Making shaped products, e.g. fibres, spheres, membranes or foam
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
1505095 Activated carbon CLAIRAIRE Ltd 11 Nov 1976 [11 Nov 1975] 46465/75 Heading C1A A batch process for the production of materials composed wholly or predominantly of activated carbon from cellulosic cloth, especially a viscose rayon cloth, comprises padding the cloth to be carbonized with a solution of Lewis acid which is a halide of zinc, aluminium, calcium, magnesium or iron, drying and overfeeding the cloth over a breaking machine to soften the cloth, applying the cloth on to a drying frame in a tensionless condition, placing the frame in a furnace maintained at a pressure above atmosphere by an inert gas, passing the inert gas through the cloth depending from the frame and gradually heating the furnace to 300‹ C. over a period of 2 to 3 hours to drive off volatiles from the cloth, heating the cloth to substantially 900‹ to 950‹ C. over a period of substantially two hours, maintaining the temperature for a period of approximately one half hour, cooling the furnace to substantially 100‹ C. whilst maintaining an inert atmosphere therein and finally removing the lid or cover and the frame from the furnace. The process may be effected in a heat insulated furnace in which the cloth is suspended from hooks 1 on a frame or frames 2 attached to the underside of the lid 3 of the furnace. The furnace is heated by electric heat 4 and its sides and bottom are lagged with insulating material 6. Holes 9 in the lid provide for the escape of fumes. Carbon dioxide or other inert gas is supplied to the furnace by pipe 9, displacing air via holes 7. The supply of gas is then continued at slightly above atmospheric pressure during the heating cycle. The furnace is then allowed to cool to 100‹ C. while maintaining the inert atmosphere, and the lid 3 is then removed with the cloth. Cooling of the furnace is accelerated by circulating cooling air or liquid through pipes 12 in the furnace wall insulation, the exhaust gases from the furnace during cooling being fed to the inert gas inlet of a second furnace to preheat the material therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB46465/75A GB1505095A (en) | 1976-11-11 | 1976-11-11 | Process for the manufacture of activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB46465/75A GB1505095A (en) | 1976-11-11 | 1976-11-11 | Process for the manufacture of activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1505095A true GB1505095A (en) | 1978-03-22 |
Family
ID=10441386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46465/75A Expired GB1505095A (en) | 1976-11-11 | 1976-11-11 | Process for the manufacture of activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1505095A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915640A1 (en) * | 1978-04-21 | 1979-10-31 | Clairaire Ltd | PROCESS FOR PRODUCING ACTIVATED CHARCOAL |
| US4274979A (en) * | 1978-04-21 | 1981-06-23 | Clairaire Limited | Manufacture of activated carbon |
| US4409125A (en) | 1978-06-22 | 1983-10-11 | Takeda Chemical Industries, Ltd. | Process for producing activated fibrous carbon |
-
1976
- 1976-11-11 GB GB46465/75A patent/GB1505095A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915640A1 (en) * | 1978-04-21 | 1979-10-31 | Clairaire Ltd | PROCESS FOR PRODUCING ACTIVATED CHARCOAL |
| FR2423443A1 (en) * | 1978-04-21 | 1979-11-16 | Clairaire Ltd | Active carbon prepn. from tension-free hanging fibrous cellulose - by carbonisation with Lewis acid and activation with further heating |
| US4274979A (en) * | 1978-04-21 | 1981-06-23 | Clairaire Limited | Manufacture of activated carbon |
| US4409125A (en) | 1978-06-22 | 1983-10-11 | Takeda Chemical Industries, Ltd. | Process for producing activated fibrous carbon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19961110 |