GB421762A - Improvements in the treatment of glauconite - Google Patents
Improvements in the treatment of glauconiteInfo
- Publication number
- GB421762A GB421762A GB36712/33A GB3671233A GB421762A GB 421762 A GB421762 A GB 421762A GB 36712/33 A GB36712/33 A GB 36712/33A GB 3671233 A GB3671233 A GB 3671233A GB 421762 A GB421762 A GB 421762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glauconite
- subjected
- boiling point
- heat treatment
- 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
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/46—Amorphous silicates, e.g. so-called "amorphous zeolites"
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Washed and cleaned glauconite is subjected to a dehydrating heat treatment under reducing conditions at 450--750 DEG C. and then digested with caustic alkali of concentration greater than 15 per cent, whereby its base-exchanging capacity is increased permanently. The reducing agent for the heat treatment may be hydrogen, town gas &c., but preferably the glauconite is mixed with heavy commercial fuel oil and subjected to direct flame heating at 535--650 DEG C. Hot caustic soda solution of 35 per cent strength is preferably used for the digestion, which may be effected at boiling point. With more dilute solutions, temperatures above boiling point may be used under pressure. Sodium silicate may be added to the caustic soda, which is used for successive batches of glauconite and periodically purified and brought back to the desired strength. The surfaces of the treated glauconite may be stabilized by successive treatment with dilute solutions of alkali silicate and of an acid-reacting salt such as aluminium sulphate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US421762XA | 1933-06-19 | 1933-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421762A true GB421762A (en) | 1934-12-31 |
Family
ID=21920451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36712/33A Expired GB421762A (en) | 1933-06-19 | 1933-12-30 | Improvements in the treatment of glauconite |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB421762A (en) |
-
1933
- 1933-12-30 GB GB36712/33A patent/GB421762A/en not_active Expired
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