GB802403A - A process for the preparation of new desiccants and dehumidifiers - Google Patents
A process for the preparation of new desiccants and dehumidifiersInfo
- Publication number
- GB802403A GB802403A GB11349/56A GB1134956A GB802403A GB 802403 A GB802403 A GB 802403A GB 11349/56 A GB11349/56 A GB 11349/56A GB 1134956 A GB1134956 A GB 1134956A GB 802403 A GB802403 A GB 802403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- solution
- april
- desiccants
- per cent
- 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
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Drying Of Gases (AREA)
Abstract
802,403. Desiccants. COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH. April 13, 1956 [April 14, 1955], No. 11349/56. Class 34(1) A desiccant is made from naturally occurring vegetable decomposition material, e.g. coal, by preparing an ion-exchanger product from the material and activating it by heating within a temperature range 100‹-110‹C. In a particularly described method an exchanger according to Specification 763,329 [Group IV(b)] is treated in a constantly stirred rotating drum with nearly 1¢ times its volume of 15-20 per cent solution of a mixture of (a) one of the salts, preferably chlorides of alkali or alkaline earth metals like Li, Na, K, CS, Mg, Sr, Ca, Ba, NH4 or quaternary ammonium compounds and (b) the corresponding hydroxide of the metal chosenthe ratio of (a) to (b) being 1:5. The solution passes through the drum via hollow shafts and the temperature in the drum should not exceed 70‹C. After this treatment the remaining solution is drained from the drum and the material left therein is flushed with demineralized water and taken out for air drying. The dried material is returned to the drum which is rotated whilst a 1 per cent sodium carbonate solution with a wetting agent e.g. triethanolamine is sprayed over the material. The product is then activited by passing hot air through the drum at 100‹-110‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN802403X | 1955-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802403A true GB802403A (en) | 1958-10-01 |
Family
ID=11076632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11349/56A Expired GB802403A (en) | 1955-04-14 | 1956-04-13 | A process for the preparation of new desiccants and dehumidifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB802403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235610A (en) * | 1961-06-16 | 1966-02-15 | Dow Chemical Co | Dehydration of organic liquids with carboxylate cation exchange resins |
-
1956
- 1956-04-13 GB GB11349/56A patent/GB802403A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235610A (en) * | 1961-06-16 | 1966-02-15 | Dow Chemical Co | Dehydration of organic liquids with carboxylate cation exchange resins |
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