CH511192A - Activated carbon filtrant materials particularly - suitable for water purification - Google Patents
Activated carbon filtrant materials particularly - suitable for water purificationInfo
- Publication number
- CH511192A CH511192A CH890867A CH890867A CH511192A CH 511192 A CH511192 A CH 511192A CH 890867 A CH890867 A CH 890867A CH 890867 A CH890867 A CH 890867A CH 511192 A CH511192 A CH 511192A
- Authority
- CH
- Switzerland
- Prior art keywords
- carbon
- filtrant
- activated carbon
- water purification
- reheated
- Prior art date
Links
Classifications
-
- 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
-
- 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
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Carbon-based filtrant materials are produced by distillation of a wood resin (small particles) in pres. of 3 to 6, pref. 5% wt. concd. H2SO4 contained in 15 to 20 vols. H2O at 450 to 700 C. After cooling, the carbon material can be reheated in an overn, in the absence of air, for 20 mins. at a temp. at least 50 degrees C > distn. temp. or (b) mixed with a coke-forming material for controlling pore size of carbon and then reheated to 450 to 700 C. The carbon filter materials have least tendency to plug and very high flow rates can be used. They have optimal pore sizes and are extremely light. They are particularly suitable for purification of water e.g. removal of chlorine, phenol, oil and colour.
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH890867A CH511192A (en) | 1967-01-27 | 1967-01-27 | Activated carbon filtrant materials particularly - suitable for water purification |
| US739645A US3575884A (en) | 1967-01-27 | 1968-06-25 | Method for the production of active charcoal from sawdust treated with sulphuric acid |
| SE8593/68A SE342804B (en) | 1967-01-27 | 1968-06-25 | |
| DE19681767871 DE1767871C3 (en) | 1967-06-27 | 1968-06-26 | Process for the production of filter media based on carbon |
| FR1578164D FR1578164A (en) | 1967-01-27 | 1968-06-26 | |
| AT616468A AT291192B (en) | 1967-01-27 | 1968-06-27 | Process for the production of filter media based on carbon |
| JP43044822A JPS5130032B1 (en) | 1967-01-27 | 1968-06-27 | |
| SU1251885A SU402199A3 (en) | 1967-01-27 | 1968-06-27 | |
| NO2558/68A NO122240B (en) | 1967-01-27 | 1968-06-27 | |
| BE717252D BE717252A (en) | 1967-01-27 | 1968-06-27 | |
| GB1228251D GB1228251A (en) | 1967-01-27 | 1968-06-27 | |
| NL6809088A NL6809088A (en) | 1967-01-27 | 1968-06-27 | |
| FI681832A FI49016C (en) | 1967-01-27 | 1968-06-27 | Process for the production of activated charcoal useful as filter pulp. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH890867A CH511192A (en) | 1967-01-27 | 1967-01-27 | Activated carbon filtrant materials particularly - suitable for water purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH511192A true CH511192A (en) | 1971-08-15 |
Family
ID=4346128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH890867A CH511192A (en) | 1967-01-27 | 1967-01-27 | Activated carbon filtrant materials particularly - suitable for water purification |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH511192A (en) |
| SU (1) | SU402199A3 (en) |
-
1967
- 1967-01-27 CH CH890867A patent/CH511192A/en not_active IP Right Cessation
-
1968
- 1968-06-27 SU SU1251885A patent/SU402199A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SU402199A3 (en) | 1973-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |