GB1382475A - Adsorbent carbon - Google Patents
Adsorbent carbonInfo
- Publication number
- GB1382475A GB1382475A GB1545572A GB1545572A GB1382475A GB 1382475 A GB1382475 A GB 1382475A GB 1545572 A GB1545572 A GB 1545572A GB 1545572 A GB1545572 A GB 1545572A GB 1382475 A GB1382475 A GB 1382475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- absorbent
- chars
- mins
- april
- period
- 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
-
- 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
- C01B32/306—Active carbon with molecular sieve properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
1382475 Absorbent carbon CALGON CORP 4 April 1972 [7 April 1971] 15455/72 Heading C1A A carbon absorbent having molecular sieve properties is obtained by agglomerating pulverized coal, or a char derived from naturally occurring carbonaceous material with pitch, crushing the agglomerates, activating the granular material so obtained by heating in a stream of air at 300-400‹ C. for a period of at least 120 mins. and subsequently calcining at 850‹ to 960‹ C. for a period of 5-20 mins. and recovering the product. The product is said to have a surface area measured by I 2 absorption of at least 450 m.<SP>2</SP>/gm. and an average CCl 4 number of no greater than 2À0. The material may be contacted with air during the activating step. The absorbent may be used for separating gaseous mixtures, e.g. of hydrocarbons, when only molecules of given size and shapes are taken up by the absorbent. The absorbed gases may subsequently be regenerated. Suitable chars are given as coconut char, carbonized coal, lignite chars, petroleum acid sludge, nut shells and wood.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13221771A | 1971-04-07 | 1971-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1382475A true GB1382475A (en) | 1975-02-05 |
Family
ID=22453011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1545572A Expired GB1382475A (en) | 1971-04-07 | 1972-04-04 | Adsorbent carbon |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE781746A (en) |
| CA (1) | CA1006494A (en) |
| CH (1) | CH580541A5 (en) |
| DE (1) | DE2216603A1 (en) |
| FR (1) | FR2132704B1 (en) |
| GB (1) | GB1382475A (en) |
| IT (1) | IT957602B (en) |
| LU (1) | LU65116A1 (en) |
| NL (1) | NL7203686A (en) |
| SE (1) | SE381448B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4036354A1 (en) * | 1990-11-15 | 1992-05-21 | Hasso Von Bluecher | Removing solvent vapour from off-gases contg. oil, grease etc. - by passing the gas through a wide-pore adsorption filter and then through a fine-pore adsorbent |
-
1972
- 1972-03-20 NL NL7203686A patent/NL7203686A/xx unknown
- 1972-03-24 SE SE7203837A patent/SE381448B/en unknown
- 1972-03-29 CA CA138,517A patent/CA1006494A/en not_active Expired
- 1972-03-30 IT IT49356/72A patent/IT957602B/en active
- 1972-04-04 GB GB1545572A patent/GB1382475A/en not_active Expired
- 1972-04-06 LU LU65116D patent/LU65116A1/xx unknown
- 1972-04-06 DE DE19722216603 patent/DE2216603A1/en active Pending
- 1972-04-06 BE BE781746A patent/BE781746A/en unknown
- 1972-04-06 FR FR7212046A patent/FR2132704B1/fr not_active Expired
- 1972-04-07 CH CH514372A patent/CH580541A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH580541A5 (en) | 1976-10-15 |
| IT957602B (en) | 1973-10-20 |
| NL7203686A (en) | 1972-10-10 |
| LU65116A1 (en) | 1972-12-07 |
| SE381448B (en) | 1975-12-08 |
| FR2132704A1 (en) | 1972-11-24 |
| BE781746A (en) | 1972-10-06 |
| DE2216603A1 (en) | 1972-10-12 |
| CA1006494A (en) | 1977-03-08 |
| FR2132704B1 (en) | 1977-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |