Laporte Industries Limited

Geoffrey Frank Eveson

Anthony John Beach

Reginald Keith Leedham

Alan W Scruby

Fluid permeable wall members through which an auxiliary fluid is passed against pressure exerted by a fluid to be contained, which wall member is composed of inorganic fibres, may be used to contain hot fluids or fluids otherwise having a deleterious effect on the wall members. Vacuum formed shapes composed of refractory inorganic fibres may be used to contain fluids having temperatures of over 2500.degree. C. such as gases which have been heated by electrical discharge means for use in the vapor phase manufacture of oxides of titanium, iron, aluminium, silicon or zirconium and offer low capital costs combined with resistance to thermal shock.

Methods of containing fluids deleterious to the container

The volumes of hot gas required for use in certain large scale chemical processes may be heated to e.g. above 2500.degree. C by means of a distributed electrical discharge in an apparatus in which the supply of gas to a heating zone is through a plurality of adjacently positioned conduits arranged to constrain the gas at its point of entry thereto into a plurality of parallel streams and in which a plurality of electrodes are positioned respectively in the plurality of gas streams. If the dimensions of the conduit and of the electrodes are suitably controlled relative to the quantity of gas the distributed discharge may be maintained in the absence of seed or of a flame thus avoiding a source of contamination of the heated gas.

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Tetney, United Kingdom

Geoffrey Frank Eveson