GB1300327A - Method of correcting clays with mining by-products to permit their expansion, and products obtained thereby - Google Patents

Method of correcting clays with mining by-products to permit their expansion, and products obtained thereby

Info

Publication number
GB1300327A
GB1300327A GB2008770A GB2008770A GB1300327A GB 1300327 A GB1300327 A GB 1300327A GB 2008770 A GB2008770 A GB 2008770A GB 2008770 A GB2008770 A GB 2008770A GB 1300327 A GB1300327 A GB 1300327A
Authority
GB
United Kingdom
Prior art keywords
clays
shale
grain size
products
mining
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
GB2008770A
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.)
Charbonnages de France CDF
Houilleres du Bassin du Nord et du Pas de Calais
Original Assignee
Charbonnages de France CDF
Houilleres du Bassin du Nord et du Pas de Calais
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
Application filed by Charbonnages de France CDF, Houilleres du Bassin du Nord et du Pas de Calais filed Critical Charbonnages de France CDF
Publication of GB1300327A publication Critical patent/GB1300327A/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
    • C04B20/04—Heat treatment
    • C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
    • C04B20/068—Selection of ingredients added before or during the thermal treatment, e.g. expansion promoting agents or particle-coating materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1300327 Expanded clays HOUILLERES DU BASSIN DU NORD ET DU PAS-DECALAIS and CHARBONNAGES DE FRANCE 27 April 1970 [28 April 1969] 20087/70 Heading C1J Expanded clays are made by mining clays with coal shale or fly ash which contain a quantity of unburnt carbon, and heating in an oxidizing atmosphere to initiate combustion of a proportion of the carbon so that the temperature reaches above 1000‹ C. by this combustion alone; and subsequently subjecting the mixture to a second heat treatment again in an oxidizing atmosphere at over 1300‹ C. wherein expansion of the clays occurs. The coal shale is floating shale added in amounts of 20 wt. per cent of crushed buddle shale with a grain size not exceeding 20 mm. which is converted into powder with a grain size under 800 microns, at least 50% of which has a grain size under 200 microns.
GB2008770A 1969-04-28 1970-04-27 Method of correcting clays with mining by-products to permit their expansion, and products obtained thereby Expired GB1300327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6913412A FR2040944A5 (en) 1969-04-28 1969-04-28

Publications (1)

Publication Number Publication Date
GB1300327A true GB1300327A (en) 1972-12-20

Family

ID=9033159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2008770A Expired GB1300327A (en) 1969-04-28 1970-04-27 Method of correcting clays with mining by-products to permit their expansion, and products obtained thereby

Country Status (6)

Country Link
BE (1) BE749344A (en)
DE (1) DE2020326A1 (en)
FR (1) FR2040944A5 (en)
GB (1) GB1300327A (en)
LU (1) LU60810A1 (en)
NL (1) NL7006226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218412B (en) * 1988-05-13 1992-04-22 Philip Leonard Owens Lightweight aggregates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218412B (en) * 1988-05-13 1992-04-22 Philip Leonard Owens Lightweight aggregates

Also Published As

Publication number Publication date
BE749344A (en) 1970-10-01
NL7006226A (en) 1970-10-30
DE2020326A1 (en) 1970-11-12
LU60810A1 (en) 1970-06-29
FR2040944A5 (en) 1971-01-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee