GB591388A - Process for the treatment of mica - Google Patents
Process for the treatment of micaInfo
- Publication number
- GB591388A GB591388A GB11564/45A GB1156445A GB591388A GB 591388 A GB591388 A GB 591388A GB 11564/45 A GB11564/45 A GB 11564/45A GB 1156445 A GB1156445 A GB 1156445A GB 591388 A GB591388 A GB 591388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- flakes
- fusible
- order
- solutions
- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/20—Mica; Vermiculite
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Paper (AREA)
Abstract
Mica is heated to a temperature sufficient to cause cleavage but insufficient for complete dehydration, and then is treated successively with solutions capable of reacting with one another with the evolution of gas in order to produce very thin flakes p which are subsequently washed and graded by flotation. Heating is preferably effected at 600-800 DEG C, and, while still hot, the flakes are plunged into a solution of sodium carbonate or bicarbonate, cooled, drained, and then poured into a solution of strong acid, e.g., a 5 per cent. solution of hydrochloric acid and strongly agitated. The order of treatment with the solutions may be reversed. After filtering and drying, the flakes can be preserved and brought into suspension in water or oil when required for use. Cakes made therefrom can be used for thermal or electrical insulation. They can be made into sheet form on a paper-making machine. They can be moulded with or without the use of a binder which may be a fusible or polymerizable organic substance or a fusible mineral salt, e.g., a borate of lead formed in situ with a material which decomposes with heat leaving no residue.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR982402T | 1943-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB591388A true GB591388A (en) | 1947-08-15 |
Family
ID=9535315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11564/45A Expired GB591388A (en) | 1943-04-27 | 1945-05-07 | Process for the treatment of mica |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE455302A (en) |
| FR (1) | FR982402A (en) |
| GB (1) | GB591388A (en) |
-
1943
- 1943-04-27 FR FR982402D patent/FR982402A/en not_active Expired
-
1944
- 1944-04-14 BE BE455302A patent/BE455302A/en unknown
-
1945
- 1945-05-07 GB GB11564/45A patent/GB591388A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR982402A (en) | 1951-06-11 |
| BE455302A (en) | 1944-05-31 |
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