GB798269A - Material consisting of ferrosilicon-containing particles and process for preparing same - Google Patents

Material consisting of ferrosilicon-containing particles and process for preparing same

Info

Publication number
GB798269A
GB798269A GB7540/56A GB754056A GB798269A GB 798269 A GB798269 A GB 798269A GB 7540/56 A GB7540/56 A GB 7540/56A GB 754056 A GB754056 A GB 754056A GB 798269 A GB798269 A GB 798269A
Authority
GB
United Kingdom
Prior art keywords
particles
ferro
ferrosilicon
per cent
containing particles
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
GB7540/56A
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.)
Knapsack AG
Knapsack Griesheim AG
Original Assignee
Knapsack AG
Knapsack Griesheim AG
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 Knapsack AG, Knapsack Griesheim AG filed Critical Knapsack AG
Publication of GB798269A publication Critical patent/GB798269A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid

Abstract

Ferro-silicon particles having a major percentage of round or globular particles with a smooth surface, are obtained by spraying melts containing 10-25 per cent Si and 0.08 to 0.5 per cent Al. These particles are especially useful for preparing heavy media for sink/float separating processes. Gas or vapour pressures of 6-13 atmospheres and temperatures of 1200 DEG to 1600 DEG C. are preferred in the atomizing step. Ferro-silicons outside the above ranges can be used by suitably adjusting the composition before spraying, such as by the addition of SiO2 containing material to remove all or some of the Al by oxidation. If all the Al is removed the appropriate amount must be added to the melt before spraying.
GB7540/56A 1955-03-12 1956-03-09 Material consisting of ferrosilicon-containing particles and process for preparing same Expired GB798269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE798269X 1955-03-12

Publications (1)

Publication Number Publication Date
GB798269A true GB798269A (en) 1958-07-16

Family

ID=6711367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7540/56A Expired GB798269A (en) 1955-03-12 1956-03-09 Material consisting of ferrosilicon-containing particles and process for preparing same

Country Status (1)

Country Link
GB (1) GB798269A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278294A (en) * 1962-05-02 1966-10-11 Knapsack Ag Ferrosilicon as a deoxidizing, inoculating and/or alloying agent
US4564401A (en) * 1983-09-29 1986-01-14 Crucible Materials Corporation Method for producing iron-silicon alloy articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278294A (en) * 1962-05-02 1966-10-11 Knapsack Ag Ferrosilicon as a deoxidizing, inoculating and/or alloying agent
US4564401A (en) * 1983-09-29 1986-01-14 Crucible Materials Corporation Method for producing iron-silicon alloy articles

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