Abstract: A method for determining ethylene glycol in motor oil in the range of about 10 to about 100 parts per million (ppm) in which ethylene glycol is extracted from an oil sample using water as extractant, the extracted ethylene glycol is oxidized with trisodium paraperiodate to form formaldehyde, the formaldehyde is condensed with 3-methyl-2-benzothiozilinone hydrazone hydrochloride (MBH), and ferric chloride then added to form a brilliant blue dye solution which indicates the presence initially of ethylene glycol. In a technique adapted for laboratory use the absorbance of the blue dye solution is measured spectrophotometrically at 630 nanometers (nm) and the measured absorbance is translated to a calibration of concentration of ethylene glycol in the oil sample.

Abstract: Oxidative dehydrogenation system recycles separated water from the system to a catalytic oxidation reactor at which location organic compounds in the separated water are converted to materials such as carbon dioxide, carbon monoxide and water vapor with the resultant treated water being recycled to a dehydrogenation catalytic reactor of the system.

Abstract: The presence of an organic liquid is detected by means of a probe which comprises a rubber-like material which is swellable in an organic liquid, which rubber-like material has electrically-conductive solid particles distributed therethrough, in such concentration as to touch each other.

Abstract: An antipollution device for substantially reducing the carbon monoxide and hydrocarbons contained in the exhaust gases of vehicles. The device includes a container having an inlet adapted to be connected to the engine manifold of the vehicle and an outlet adapted to be connected to the exhaust pipe. The walls of the container are lined with a castable refractory material containing a binder resistant to high temperatures. The container also includes a stacked array of members formed from the refractory material. The stacked array includes at least three layers of members, with the members of adjacent layers being arranged perpendicular to each other to form passageways within the container connecting the inlet and outlet so that as exhaust gases pass through the passageways, they substantially reduce the carbon monoxide and hydrocarbons contained therein.

Abstract: A means for guiding a coke oven door as it is replaced on an oven. The guide means includes bars carried by the door frame for guiding the door accurately to a position in which the sealing members contact a flat surface on the jamb to effect a seal. The forward tips of the guide bars are closely adjacent the forward edges of the sealing members so that the guide bars serve also as stops to prevent overloading of the sealing members.

Abstract: The mantle of a vibratory spiral reactor is filled with powdery material for insulation which acquires an electrostatic charge during vibration, thereby providing air spaces and resisting compaction during operation of the reactor.

Abstract: Distillation system for distilling shale oil. Shale is inserted into a rotating retort which displaces the shale throughut the retort extended length. The rotating retort is mounted to a multiplicity of enclosed housings through rotative bearings. The enclosed housings form discrete heating chambers to provide individual temperature zones through which the shale passes in the distilling process. The multiplicity of housings are each connected to a next consecutive housing through a conduit which permits utilization of combustion gases from a common source to heat each of the temperature zones. A thermal control mechanism is coupled to each of the enclosures to provide temperature control within a particular temperature zone. Thus, the shale in its passage through the retort is subjected or exposed to predetermined temperature ranges within each of the enclosures for a predetermined time in order to maximize the efficiency of the shale oil recovery process.

Abstract: A rack or holder for test tubes and the like comprising a base and at least one test tube support plate member spaced apart from the base substantially parallel thereto and provided with a plurality of regularly arrayed apertures for placement therethrough of the test tubes. The base is provided with apertures each vertically aligned with a corresponding aperture in the support plate members. The apertures in the base or, alternatively, the apertures in the support plate member are each provided with a circular groove in which is disposed a toroidal resilient member, such as an O-ring or the like, having an internal diameter slightly less than the outside diameter of the test tubes. A test tube is normally supported in the rack by being introduced through the aligned apertures of the support plate member and of the base and pushed through the toroidal resilient member.

Abstract: The opening for charging a coking chamber of a coking oven is closed by closure means and a lock chamber is arranged outside the closure means for preventing any emissions from the coking chamber seeping past the closure means to pass to the outer atmosphere.

Abstract: An increased coking rate of a coal charge in a non-recovery coke oven is achieved without polluting emissions by decreasing the supply of primary air fed into the coke oven chamber throughout the coking period while controlling the amount of heated secondary air for combustion of the effluent in downcomers to maintain the temperature therein between 1200.degree. F and 2400.degree. F and to maintain a temperature in the range of 1800.degree. F to 2700.degree. F in heating flues by further combustion of the effluent discharged thereto from the downcomers. Coking proceeds from the top, bottom and sides of the coal charge. The effluent from the sole heating flue is incinerated within a checker-filled ignition chamber maintained at a temperature of at least 1600.degree. F. The incinerated gases are drawn into a stack at a negative draft pressure of between 0.15 and 0.17 inch water gage.

Abstract: A process for extracting essentially pure unsymmetrical dimethyl hydrazine UDMH) from a solution containing UDMH, water, and other volatiles and non-volatiles, comprises charging a distillation stillpot with the UDMH solution, mixing into the solution sufficient caustic sodium hydroxide so as to cause the solution to separate into a two layer system, mixing isopropanol into the two layer system, and distilling off the essentially pure UDMH distillate.

Abstract: Process and apparatus for treating a comminuted solid carbonizable material, such as comminuted municipal waste; sawdust, granulated coal, shredded tires and the like wherein the material is caused to be pyrolyzed in a horizontally disposed elongated reaction zone essentially free of any oxygen containing gases at ambient pressure and at a temperature of from 400.degree. C. to 900.degree. C. The material is passed through the reaction zone by paddle-like impellers mounted on a shaft while being subject to an indirect heat transfer relationship via a burning air fuel mixture spirally swirling within a heating zone about the reaction zone and the mixture being withdrawn from a lower portion of the heating zone. During pyrolysis, the material is chemically changed into valuable gaseous, liquid and solid products.

Abstract: Method of keeping sprinkling water used for sprinkling in the uptakes of coke ovens in a clean condition, comprises directing the sprinkling water condensate which is collected after circulation in the uptakes, and which includes tar, tar oils, hydrocarbons and ammonia, into a separator to separate a clean sprinkling liquid therefrom, and returning this liquid to the flue and also directing a tar which is free of solids into the flue with the sprinkling liquid, at least during an initial period of operation of the coking oven.

Abstract: Method and apparatus for the liquid treatment of filter cakes formed as a layer on a moving filter web. The method comprising removing portions of the cake from the web by agitators having vanes which break up part of the cake on the filter and move the portions into a cover over the agitators where treatment liquid is injected to treat the portions removed from the web. The treated portions are then returned to the moving web at substantially the same place from whence they were removed.

Abstract: Equipment for exhausting gases from a collecting device including an outer collection duct having longitudinal openings covered by a flexible belt. The collecting device is shifted along said duct while lifting the belt off the collection duct. Located within the outer collection duct is a longitudinally extending arcuate member defining on its side opposite to said belt an inner collection channel for directing exhaust gases out through the collection channel while preventing contact of said exhaust gases with the belt to prevent deterioration thereof.

Abstract: Method and apparatus for making vitreous silica of high purity including producing a melt of liquid silicon in a first chamber, mixing the liquid silicon with carbon dioxide in an upper zone of a second chamber to produce silicon monoxide, mixing the silicon monoxide with oxygen in a lower zone of the second chamber producing silicon dioxide in gaseous form, condensing the silicon dioxide on the wall of the second chamber, and withdrawing the resultant tube of vitreous silica from the lower end of the second chamber. The apparatus is lined with silica to prevent introduction of impurities. The liquid silicon is produced by mixing hydrogen and trichlorosilane.

Abstract: Device for determining variations within an indicator tube having a material which varies in light intensity or color in the presence of particular gases, comprises a first set of light barrier devices as light sources and photoelectric cells on respective sides of the tube. A reference set of light barrier means is provided for sensing a reference value of light through the tube and is connected to a comparator for sensing the variations between it and the first set of light barrier tubes and for recording this information on a counter. The counters are connected to a time signal transmitter and time signal receiver and the predetermined variations which occur at various time intervals are picked up by an indicator or alarm circuit designed to show the variations and indications which are sensed in a particular time period.

Abstract: In a system wherein coke is ejected from a horizontal coke oven into a one-spot coke quenching car, a reciprocating coke guide extension which serves to spread the ejected coke more evenly throughout the one-spot quenching car, thus allowing more coke to be accumulated in the one-spot quenching car before it is required to be moved. The apparatus presents a means by which the falling coke column is directed initially to the remote side of the car, away from the coke oven, and at varying oblique angles from the central axis of the horizontal coke oven, concluding the loading operation by directing the coke to a point immediately below the exit from the coke oven.

Abstract: A centrifuge for removing liquid media adhering to chips, turnings, borings or the like. The centrifuge, which is supplied from above, includes a rotatable sieve drum having its own drive system and an inlet for the material which is to be processed. A distributing plate is rotatably and reciprocally mounted within the sieve drum coaxially therewith and in radially spaced relationship thereto. The distributing plate also has its own drive system.

Abstract: Very compact resin mixing and delivery device for use in mixing and delivering such resin as urea formaldehyde with foaming agents or the like and for delivering such mixtures to a delivery conduit which is adapted for applying the resin and foaming agent in place so that it may develop into a cured cellular foam like hard filler or body for use in various applications such as building insulation, wall reinforcing and filling various voids or cavities in a great variety of structures.