C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
241/130
C04B 35/82 (2006.01) B03B 5/62 (2006.01) B03B 9/00 (2006.01) C04B 20/08 (2006.01)
Patent
CA 1225977
- 25 - ABSTRACT A process of recovering asbestos fibre from asbestos-bearing material comprising a first stage of preparing a fibre concentrate by the steps of comminu- tion, classification and spiral concentration and a second stage of liberating and recovering fibre, wherein in the second stage there is a separation by means of a hydrocyclone into a well-opened fraction and a poorly opened fraction, and wherein the asbestos- bearing material is substantially moist throughout the process.
428839
Andrews John R.g.
Hurst George T.
Stewart Philip S.b.
Barlow Charles Brian
Ici Australia Limited
Woodsreef Mines Ltd.
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