GB841695A - Crystalline zeolite k-g and process for making same - Google Patents
Crystalline zeolite k-g and process for making sameInfo
- Publication number
- GB841695A GB841695A GB6376/57A GB637657A GB841695A GB 841695 A GB841695 A GB 841695A GB 6376/57 A GB6376/57 A GB 6376/57A GB 637657 A GB637657 A GB 637657A GB 841695 A GB841695 A GB 841695A
- Authority
- GB
- United Kingdom
- Prior art keywords
- al2o3
- gel
- sio2
- zeolite
- formula
- 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
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2869—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of other types characterised by an X-ray spectrum and a definite composition
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
<PICT:0841695/III/1> A crystalline synthetic zeolite, designated zeolite KG, of formula: 0.9-1.1 K2O : Al2O3 : 2.3-4.25 SiO2 : 2.6-4.6 H2O, identifiable by a characteristic X-ray diffraction pattern, is prepared by holding a gel having a composition K2O : Al2O3 : nSiO2 in the presence o aqueous potassium hydroxide at a temperature falling within the shaded area of the Figure corresponding to the n value of the gel. The zeolite so prepared may be contacted with aqueous solutions of Na, Li, Cs, Rb, or Cd ions which replace the potassium in the above formula. The zeolite may be partially dehydrated and used as an adsorbent for polar molecules, particularly water, carbon dioxide and ammonia. According to an example, a gel of formula K2O : Al2O3 : 3 SiO2 formed fro potassium hydroxide, silicic acid and aluminium hydroxide, was dried and mixed with aqueous KOH to form a gel 2.5 K2O : Al2O3 : 3 SiO2 which, in the presence of excess KOH, was autoclaved at 150 DEG C. for 3 days. The crystalline product analysed 0.92 K2O : Al2O3 : 2.3 SiO2 : 3.4 H2O.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US841695XA | 1956-02-29 | 1956-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB841695A true GB841695A (en) | 1960-07-20 |
Family
ID=22183276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6376/57A Expired GB841695A (en) | 1956-02-29 | 1957-02-26 | Crystalline zeolite k-g and process for making same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB841695A (en) |
-
1957
- 1957-02-26 GB GB6376/57A patent/GB841695A/en not_active Expired
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