C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/12
C10G 1/04 (2006.01)
Patent
CA 1124668
CASE 402l/CAN ABSTRACT OF THE INVENTION "Coal Digestion Control" It has surprisingly been found that filtration of coal digest can be greatly facilitated by liquid phase extraction using an aromatic solvent oil of coal in at least two stirred reactors in series. Control of residence time is greatly enhanced, reducing or eliminating short residence time digest components which increase filter cake resistivity and long residence time components which have repolymerised and cause loss of yield. (Figure 3 to be used)
342830
Clarke James W.
Kimber Geoffrey M.
Rantell Terry D.
Coal Industry (patents) Limited
Fetherstonhaugh & Co.
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