GB1509401A - Filter - Google Patents
FilterInfo
- Publication number
- GB1509401A GB1509401A GB1751475A GB1751475A GB1509401A GB 1509401 A GB1509401 A GB 1509401A GB 1751475 A GB1751475 A GB 1751475A GB 1751475 A GB1751475 A GB 1751475A GB 1509401 A GB1509401 A GB 1509401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binder
- aluminium
- filter
- particulate
- particulate inorganic
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
- B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
1509401 Filter; binding particulate inorganic materials IMPERIAL CHEMICAL INDUSTRIES Ltd 1 May 1975 [7 May 1974 (2)] 17514/75 and 17515/75 Divided out of 1509402 Heading C1A [Also in Division B1] A filter is produced by forming a shaped structure from a mouldable composition comprising a mixture of: (a) a particulate inorganic material; (b) a binder for the particulate material comprising a complex phosphate of aluminium containing at least one chemically-bound hydroxylic compound ROH, where R is hydrogen or an organic group, and at least one anion of a strong inorganic acid (other than an oxyphosphorus acid) or of a carboxylic acid, and (c) a liquid dispersant for the binder, and binding the particulate inorganic material into a rigid structure by treating the structure to decompose the complex phosphate binder into an aluminium phosphate, the particle size of the particulate material being so chosen that a porous structure is produced which is suitable for use as a filter. The particulate inorganic material may be a refractory such as an alumina, a silica, an aluminium silicate, a nitride, porcelain or china clay. The dispersant is preferably a solvent for the binder and where the nature of the binder is appropriate water or an alcohol can be used. Suitable complex phosphates of aluminium are described in, e.g. Specifications 1,322,722; 1,322,724; 1,379,562 and 1,385,327.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1751475A GB1509401A (en) | 1975-05-01 | 1975-05-01 | Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1751475A GB1509401A (en) | 1975-05-01 | 1975-05-01 | Filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1509401A true GB1509401A (en) | 1978-05-04 |
Family
ID=10096529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1751475A Expired GB1509401A (en) | 1975-05-01 | 1975-05-01 | Filter |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1509401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005601A1 (en) * | 1989-10-12 | 1991-05-02 | Ceramesh Limited | Porous inorganic membranes |
| GB2277885A (en) * | 1992-10-31 | 1994-11-16 | Richard John Wakeman | Ceramic filter and membrane |
-
1975
- 1975-05-01 GB GB1751475A patent/GB1509401A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005601A1 (en) * | 1989-10-12 | 1991-05-02 | Ceramesh Limited | Porous inorganic membranes |
| US5232598A (en) * | 1989-10-12 | 1993-08-03 | Ceramesh Limited | Porous inorganic membranes |
| GB2277885A (en) * | 1992-10-31 | 1994-11-16 | Richard John Wakeman | Ceramic filter and membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |