摘要:
Spray-cooled roof for a metallurgical furnace in the form of an assembly of separate hollow metal sections, each of which has a separate spray cooling system.
摘要:
A process for converting coal tar containing quinoline-insoluble particles (Q.I.) produces a substantially Q.I.-free coal tar pitch and a separate Q.I.-containing coal tar pitch. Dehydrated coal tar, soft coal tar pitch or hard coal tar pitch are subjected to continuous cross flow filtration in a circulation loop to obtain a substantially Q.I.-free stream and, concurrently, a Q.I.-containing stream. The two streams are then separately subjected to further fractionation, if any, to produce the substantially Q.I.-free hard coal tar pitch and separate Q.I.-containing hard coal tar pitch.
摘要:
The present specification describes a compacted carbon that is useful in the electrode of an alkali metal/carbon electrochemical cell of improved capacity selected from the group consisting of:
(a) coke have the following properties:
(i) an x-ray density of at least 2.00 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 47%; and
(b) graphite having the following properties:
(i) an x-ray density of at least 2.20 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 25%.
The present specification also describes an electrode for an alkali metal/carbon electrochemical cell comprising compacted carbon as described above and a binder, and an alkali metal/carbon electrochemical cell comprising:
(a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and electrolytically conductive salt and an alkali metal, and (c) a counterelectrode.
摘要:
A combination of a spray cooled roof (110) having a central opening (132), a support member (220) and mast post (278) wherein the roof is provided with engagement means which are detachably engaged to corresponding engagement means affixed to a support arm assembly which extends over a closed part of the roof. The support member (220) is coupled to the mast post (278) which raises, lowers and laterally moves the roof.
摘要:
A fire retardant flexible graphite composite is formed from particles of exfoliated flexible graphite and particles of unexfoliated graphite flake treated with an intercalating agent usually in a desired ratio based upon the strength and desired fire retardant properties of the composite. A wall or floor covering is formed by compressing the composite into a sheet and rolled into a roll.