GB632945A - Process for manufacturing cast iron - Google Patents

Process for manufacturing cast iron

Info

Publication number
GB632945A
GB632945A GB1279/47A GB127947A GB632945A GB 632945 A GB632945 A GB 632945A GB 1279/47 A GB1279/47 A GB 1279/47A GB 127947 A GB127947 A GB 127947A GB 632945 A GB632945 A GB 632945A
Authority
GB
United Kingdom
Prior art keywords
composition
cao
line
per cent
sio2
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
GB1279/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB632945A publication Critical patent/GB632945A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Alumina may be extracted by known methods from slags, the constituents of which fall within the boundaries of a polygon in the ternary CaO-SiO2-Al2O3 diagram limited by the following lines: (a) line joining the binary compound SiO2.2CaO and the binary compound Al2O3.CaO; (b) line of composition 15 per cent Al2O3; (c) line of composition 48 per cent CaO; (d) line of composition 12 per cent SiO2; (e) line of composition 68 per cent CaO.ALSO:The constituents of slag in the manufacture of cast iron are in such proportion that they fall within the boundaries of a polygon in the ternary CaO-SiO2-A2lO3 diagram limited by the following lines: (a) line joining the binary compound SiO2-2 CaO and the binary compound Al2O3 CaO; (b) line of composition 15 per cent Al2O3; (c) line of composition 48 per cent CaO; (d) line of composition 12 per cent SiO2; (e) line of composition 68 per cent CaO. A preferred composition is one falling within the polygon: (a) line joining the binary compound SiO2 2CaO and the binary compound Al2O3-CaO; (b) lines of composition 48 and 58 per cent CaO; (c) lines of composition 12 and 25 per cent SiO2. The slags may be quenched in air or water and used for their hydraulic properties or cooled slowly and the alumina, which is mostly in a soluble state, extracted by known processes.
GB1279/47A 1946-01-16 1947-01-14 Process for manufacturing cast iron Expired GB632945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR632945X 1946-01-16

Publications (1)

Publication Number Publication Date
GB632945A true GB632945A (en) 1949-12-05

Family

ID=8992563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1279/47A Expired GB632945A (en) 1946-01-16 1947-01-14 Process for manufacturing cast iron

Country Status (1)

Country Link
GB (1) GB632945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019335B (en) * 1952-05-10 1957-11-14 Eisenwerke Muelheim Meiderich Process for increasing the quality of castings from silicon-containing cast iron or pig iron melts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019335B (en) * 1952-05-10 1957-11-14 Eisenwerke Muelheim Meiderich Process for increasing the quality of castings from silicon-containing cast iron or pig iron melts

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