Title: Method for the preparation of porous ferrous metal impregnated with magnesium metal

Abstract: A composition of matter comprising a mass of ferrous scrap pieces compressed together in random orientation forming a network of interlocking pieces has been prepared. The ferrous metal network has a density of 1.2 to 4.0 g/cc, a porosity of 50% to 85% and a short transverse tensile strength (S.T.T.S.) of at least 2 psi, preferably at least 2.5 psi. This ferrous metal network may be impregnated with magnesium in amount from 18 to 55% by weight of the impregnated body. The magnesium impregnated body is useful for treating high melting metals such as ferrous metal to reduce the sulphur content or to produce nodular iron.

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Inventors: Easwaran, Jairaj (Toledo, OH, US)
Foerster, George S. (Hightstown, NJ, US)

Application Number: 561847
Filing Date: 1975-03-25
Publication_date: 1976-08-03
Assignee: NL Industries, Inc. (New York, NY)
Primary Class(es): 427/319 75/315, 75/316, 75/568, 264/134, 419/5, 419/25, 419/27, 427/329, 427/334, 427/398.3, 427/431, 427/436, 427/443
Other Classes:
US Patent Ref:

1491392	Apr, 1924	Graham	75/44.
2675308	Apr, 1954	Millis et al.	75/125.
2839393	Jun, 1958	Kawabata	75/130.
2881068	Apr, 1959	Bergh	75/130.
3017267	Jan, 1962	Bartson et al.	75/130.
3549541	Aug, 1969	Hohl et al.	75/130.
3634066	Jan, 1972	Matthews	75/65.
3656989	Apr, 1972	Layland	427/431.

Other Refs:
Primary Examiner: Herbert, Jr., Thomas J.
Assistant Examiner: Hess, Bruce H.
Attorney: