1,155,448. Carbon electrodes. ESSO RESEARCH & ENG. CO. 9 Oct., 1967, No. 46008/67. Heading C1A. [Also in Division C5] A pitch binder for carbon electrodes is made by a process (see Division C5) which comprises (a) heating, under partial reflux conditions, a petroleum hydrocarbon in the presence of a ...
This invention is directed to a method of preparing a natural resin by liquefying wood, bark, forest residues, wood industry residues, or other biomass using rapid destructive distillation (fast pyrolysis). Fast pyrolysis produces both vapours and char from biomass, and following removal of the char ...
A conveyor feeding system for reliably and continuously supplying particulate matter as feedstock, such as rubber tire chips, to a reactor or distillation unit. The feeding system includes a pair of inclined spiral augers having their lower ends submerged in oil or other liquid to provide a liquid s ...
644,203. Furnaces; distilling carbonaceous materials. DALIN, D., HEDBACK, T. J., GEJROT, C. J., and JOHANSSON, A. W. July 15, 1946, No. 21148. Convention date, July 17, 1945. [Classes 51(i) and 55(i)] In a retort furnace for the dry distillation of coal. wood, slate or like fuel in which the fuel re ...
512,586. Medical vaporizers. ROBERTS, A. H. B. May 9, 1938, No. 13814. [Class 81(i)] Apparatus for producing dry vapours for curative purposes by the destructive distillation of vegetable or mineral matter comprises a base supporting a compartment at a distance above it, a series of circular bosses ...
Cellulosic material from plants of annual growth, such as cornstalks, is digested with alkali and the residual liquor is dried and destructively distilled at a temperature not above 300 DEG C., the remaining porous carbon serving as a source of active carbon. The residual liquor is preferably acidif ...
Aromatic hydrocarbons of low boiling point are produced from liquid or solid bituminous materials, such as coals, tars, mineral oils, asphalts or their distillation residues, by the following process. The bituminous material or a fraction thereof is subjected to destructive hydrogenation, and the po ...
487,983. Distilling and gasefying solid carbonaceous materials. ROWLEY, H. E. G. (Soc. Chimique de la Grande Paroisse- Azote & Produits Chimiques) July 12, J937, No. 19301. [Class 55 (i)] In the production of oils by low temperature distillation of coal, lignite, oil shale, petroliferous sandstone, ...
205,268. Davidson, T. M. Aug. 15, 1922. No Patent granted (Sealing fee not paid). Retorts.-In the distillation of coal and the like, the material is fed through a horizontal or inclined retort in a direction towards the zone of highest temperature and the gases evolved are withdrawn at a point adjac ...
171,918. Dolbear, S. H. Jan. 4, 1921. Surface-tension separating processes.-Oil shale is treated for the separation of the valuable organic compounds, with a view to economy in subsequent destructive distillation, by grinding to powder, mixing with water to form a pulp, adding a small quantity of an ...
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