GB933390A - Improvements in process for the treatment of asbestos - Google Patents

Improvements in process for the treatment of asbestos

Info

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
Application number
GB2716761A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HELMUT FLAMMER
Original Assignee
HELMUT FLAMMER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DEK41292A external-priority patent/DE1148984B/en
Priority claimed from DEF34362A external-priority patent/DE1160417B/en
Application filed by HELMUT FLAMMER filed Critical HELMUT FLAMMER
Publication of GB933390A publication Critical patent/GB933390A/en
Expired legal-status Critical Current

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).
GB2716761A 1960-07-26 1961-07-26 Improvements in process for the treatment of asbestos Expired GB933390A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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