GB1308457A - Heat treatment of slags - Google Patents

Heat treatment of slags

Info

Publication number
GB1308457A
GB1308457A GB1308457DA GB1308457A GB 1308457 A GB1308457 A GB 1308457A GB 1308457D A GB1308457D A GB 1308457DA GB 1308457 A GB1308457 A GB 1308457A
Authority
GB
United Kingdom
Prior art keywords
slag
cooling
slags
temperature
heat treatment
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
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB1308457A publication Critical patent/GB1308457A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
    • 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
    • C04B5/00—Treatment of  metallurgical  slag ; Artificial stone from molten  metallurgical  slag 

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1308457 Slag NATIONAL RESEARCH DEVELOPMENT CORP 29 May 1970 [6 June 1969] 28895/69 Heading C1K The average crystal size in air cooled blast furnace slag is increased by heating the slag to a temperature above that associated with maximum nucleation rate, annealing the slag at 850-1400‹ C. from between 3 hours and 3 days and then cooling the slag to ambient temperature. Alternatively the slag may be melted, quenched, reheated but without prolonged heating at the temperature of high nucleation, and thereafter annealing and cooling the slag. Additionally the slag may be heated, annealed and cooled a second time.
GB1308457D 1969-06-06 1969-06-06 Heat treatment of slags Expired GB1308457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2889569 1969-06-06

Publications (1)

Publication Number Publication Date
GB1308457A true GB1308457A (en) 1973-02-21

Family

ID=10282924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308457D Expired GB1308457A (en) 1969-06-06 1969-06-06 Heat treatment of slags

Country Status (3)

Country Link
DE (1) DE2027847A1 (en)
FR (1) FR2050069A5 (en)
GB (1) GB1308457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231042A (en) * 1989-03-23 1990-11-07 Secretary Environment Brit Pavement material
CN101830660A (en) * 2010-03-19 2010-09-15 华东交通大学 High-activity crystal seed for concrete production and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231042A (en) * 1989-03-23 1990-11-07 Secretary Environment Brit Pavement material
CN101830660A (en) * 2010-03-19 2010-09-15 华东交通大学 High-activity crystal seed for concrete production and preparation method thereof
CN101830660B (en) * 2010-03-19 2012-05-02 华东交通大学 High-activity crystal seed for concrete production and preparation method thereof

Also Published As

Publication number Publication date
FR2050069A5 (en) 1971-03-26
DE2027847A1 (en) 1970-12-17

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Legal Events

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