GB933390A - Improvements in process for the treatment of asbestos - Google Patents
Improvements in process for the treatment of asbestosInfo
- Publication number
- GB933390A GB933390A GB2716761A GB2716761A GB933390A GB 933390 A GB933390 A GB 933390A GB 2716761 A GB2716761 A GB 2716761A GB 2716761 A GB2716761 A GB 2716761A GB 933390 A GB933390 A GB 933390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- temperature
- organic substances
- silicate
- phosphate
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/08—Defibrillating asbestos
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Asbestos fibres and products produced therefrom containing organic substances which are not removable by water washing are contacted with an aqueous solution of an alkali metal silicate or phosphate and then washed with water. The contacting is preferably carried out under such conditions of time and temperature as to remove substantially all of said waterresistant organic substances, the temperature preferably being between room temperature and the boiling point of the mixture. Preferably the silicate or phosphate solution has a concentration of less than 10%. The silicates that may be used have the formula (Me2O)x(SiO2)y where x is 1 or 2, y is from 1 to 4 or greater and Me is a monovalent alkali metal atom. Phosphates which may be used are ortho and polyphosphates, e.g. primary, secondary and tertiary alkali metal salts, e.g. mono-, di- or tri-salts of monophosphates; Na2H2P2O7; Na3HP2O7; Na4P2O7; Na5P3O10; (NaPo3)x. Mixtures may also be used, e.g. "Calgon" (Registered Trade Mark).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK41292A DE1148984B (en) | 1960-07-26 | 1960-07-26 | Process for removing organic substances that cannot be washed out by water from asbestos fibers or from products made from them |
DEF34362A DE1160417B (en) | 1961-07-06 | 1961-07-06 | Process for removing organic substances which cannot be washed out by water from asbestos fibers or from products made therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB933390A true GB933390A (en) | 1963-08-08 |
Family
ID=25975039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2716761A Expired GB933390A (en) | 1960-07-26 | 1961-07-26 | Improvements in process for the treatment of asbestos |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE606544A (en) |
GB (1) | GB933390A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328197A (en) | 1980-01-08 | 1982-05-04 | Flow General, Inc. | Metal-micelle asbestos and treatment of asbestos and other silicate minerals to reduce their harmful properties |
US4401636A (en) | 1980-01-08 | 1983-08-30 | Flow General, Inc. | Novel metal-micelle asbestos and treatment of asbestos and other silicate minerals to reduce their harmful properties |
-
1961
- 1961-07-26 GB GB2716761A patent/GB933390A/en not_active Expired
- 1961-07-26 BE BE606544A patent/BE606544A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328197A (en) | 1980-01-08 | 1982-05-04 | Flow General, Inc. | Metal-micelle asbestos and treatment of asbestos and other silicate minerals to reduce their harmful properties |
US4401636A (en) | 1980-01-08 | 1983-08-30 | Flow General, Inc. | Novel metal-micelle asbestos and treatment of asbestos and other silicate minerals to reduce their harmful properties |
Also Published As
Publication number | Publication date |
---|---|
BE606544A (en) | 1961-11-16 |
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