Abstract: In the polymerization of .alpha.-olefins, a titanium trichloride containing catalyst activated by copulverization with at least one additive selected fromI. an organic compound containing oxygen, sulfur or phosphorus such as:A. Organic oxygen compounds selected from ethers, ketones and esters;B. Organic sulfur compounds selected from thioethers, thiophenols and thioalcohols; andC. Organic phosphorus compounds.Ii. an organic compound of (I) containing oxygen, sulfur or phosphorus in combination with an aluminum halide, andIii. a complex or reaction product of an organic compound of (I) with an aluminum halide.Provides substantially improved catalytic activity and reduces amorphous polymeric by-products while enhancing stereoregularity. The catalytic activity of these catalysts is further enhanced by washing with an organic solvent subsequent to copulverization to remove excess additive. Preferred catalysts are those which contain aluminum chloride with the titanium trichloride.

Abstract: An apparatus for automatically replacing anodes and cathodes disposed alternately in an electrolytic cell used for the electrolytic refining of a metal. The anodes are each formed with a pair of recesses on opposite edges of the upper end thereof, and a central cutout having a sufficient depth is formed between the recesses of the anodes. The apparatus comprises a pair of parallel rods engageable with the recesses of all the anodes and a plurality of clamping units adapted for clamping the cathodes on opposite sides of the upper end without engaging the anodes during clamping movement by virtue of the provision of the cutout in the anodes. Thus, the anodes and cathodes can be automatically loaded into and unloaded from the electrolytic cell while maintaining the predetermined inter-electrode distance required for the electrolysis of the metal.

Abstract: A catalyst for purifying exhaust gas may be prepared by a process comprising impregnating a ceramic carrier with an impregnating liquid containing at least one Platinum Group metal compound, at least one organic nitrogen compound and/or at least one organic phosphorus compound, drying the impregnated carrier, reducing the metal compound impregnated in the carrier to the corresponding metal and then calcining the metal on the carrier to obtain the desired catalyst. This invention also relates to the catalysts prepared by said process.

Abstract: A process for preparing resins for use in printing inks, which comprises co-polymerizing at least 50% by weight of dicyclopentadiene and not more than 50% by weight of another cationically polymerizable monomer in the presence of a Friedel-Crafts polymerization catalyst, adding 1 to 20% by weight, based on the weight of the resulting co-polymer, of an .alpha.,.beta.-unsaturated carboxylic acid or its anhydride to the resulting copolymer, and then esterifying the resulting adduct at last partially with a polyhydric alcohol.

Abstract: A high purity lead containing substantially no bismuth can be obtained by preferentially depositing and removing bismuth contained in slime filtrate and/or recovered electrolyte by electrolysis and recycling thus treated slime filtrate and/or recovered electrolyte as an electrolyte for lead electrolysis of the Betts process.

Abstract: A catalyst for the gasification of heavy hydrocarbons in a fluidized bed which contains CaO and has high catalytic activity, long life and mechanical strength, and further characterized in that a part or the whole of said CaO exists in the form of at least one member selected from the group consisting of 2CaO.Fe.sub.2 O.sub.3, 2CaO.SiO.sub.2 and 3CaO.SiO.sub.2 is disclosed.

Abstract: A reinforcing composition for mineral structures which comprises as reactive ingredients one or more radical-polymerizable or copolymerizable monomer and a bisulfite ion-supplying substance. The use of the reinforcing composition facilitates reinforcement of natural or artificial mineral structures and products.

Abstract: An anisotropic plastics magnet having a maximum energy product (BH)max not lower than 0.9 MG Oe, a remanence Br not lower than 2000G and a coercive force Hc not lower than 1800 Oe, and being composed at least one of ferromagnetic powders having a large magnetic anisotropy constant and at least one selected from the group consisting of metal-cross-linked copolymers of .alpha.-olefin and .alpha.,.beta. unsaturated mono- or dicarboxylic acid and saponified copolymers of ethylene and vinyl acetate, the axis of the easy magnetization of said ferromagnetic powders being oriented substantially in one direction, and a process for producing the same comprising mixing the ferromagnetic powder and the resin and forming the mixture under heating while a magnetic field is being applied.

Abstract: A system for automatically and continuously measuring the zinc and sulfuric acid concentration in an electrolyte circulating through electrolysis cells of a hydrometallurgical zinc production system, in which an inductive solution analyzer capable of continuously detecting the conductivity of the circulating electrolyte is used with a measuring cell disposed in the path of a continuous stream of the circulating electrolyte. The measuring cell comprises a defoaming chamber, a measuring chamber and an overflow chamber, and the continuous stream of the electrolyte flows through the measuring chamber as a downward stream so that bubbles can be removed and precipitation of slurry can be prevented. The signal representative of the detected conductivity is applied to an electronic computer which computes automatically the zinc and sulfuric acid concentration according to predetermined calculation formulas.

Abstract: A method of transporting objects wherein when the presence of one or more object is detected in a first stock apparatus, a transfer apparatus adapted to transport objects picks up one of the objects from said first stock apparatus and transports it towards a second stock apparatus, and only when the presence of a space for mounting such objects in said second stock apparatus is detected, said transfer apparatus transfers said object onto said second stock apparatus.

Abstract: An apparatus for automatically cleaning the electrodes of a pH meter comprising a measuring tank containing a sample solution supplied from a tank of purification section to be subject to measurement of the pH value, a cleaning tank juxtaposed with the measuring tank and having therein a cleaning brush mounted on a rotary shaft, means for supporting the electrodes of the pH meter for vertical movement, and means for supporting the electrodes supporting means for horizontal swinging movement, whereby the electrodes of the pH meter can be moved between the pH value measuring position in the measuring tank and the position engaged by the cleaning brush in the cleaning tank.

Abstract: The method for desorbing and removing methyl bromide contained in active carbon adsorbent comprises contacting an organic solvent vapor which is inert to the methyl bromide, either singly or in combination with water vapor or with an inert gas, with the active carbon on which the methyl bromide is adsorbed, at a temperature such that the solvent vapor or vapor admixture can exist only in a non-condensed state.

Abstract: 2-Phenyl-1.2.3-triazole-4-carboxaldehydes having the formula: ##STR1## are obtained by oxidizing a 2-phenylglycosotriazole having the formula: ##STR2## wherein R is hydrogen, halogen, methyl, carboxyl, a sulfonic acid group or the alkali metal salt thereof, n is 2 or 3, R' is hydroxymethyl when n is 2 and is hydroxymethyl or methyl when n is 3, with an oxide of manganese such as manganese dioxide or manganese oxide in dilute sulfuric acid of 20 to 80 wt. % concentration at a temperature of 0.degree. to 80.degree. C. The oxidation reaction is carried out in a dispersed state for from 2 to 100 hours and the resultant aldehyde is separated from the reaction mixture by extraction with an organic solvent. The purity of the aldehyde thus obtained is higher than 85 wt. % and the yield is 40% to quantitative on the basis of 2-phenylglycosotriazole. The aldehyde can be further purified by convenient means.

Abstract: A method for continuously manufacturing an endless lead sheet from which a cathode starting sheet to be used in electrolytic refining of lead is prepared are disclosed. In the present method, molten lead is continuously introduced into a first separation zone where dross is caused to come up to the surface and separated from the molten lead, mixture of the dross and the molten lead in the vicinity of the melt surface is introduced into a second separation zone through a wide flow path, and the molten lead substantially free from the dross is introduced into a casting zone while the dross is accumulated on the liquid surface in the second separation zone. In the present apparatus, there is provided in a casting tank a dish surrounding a bottom of a rotary cooling drum, which dish includes a laterally extending, shallow cutout at an upper end thereof. An adjustable gate device is provided between the cutout and the bottom of the drum.

Abstract: An apparatus for transferring cathode plates, which comprises the first and the second conveyers having a sufficient stock capacity for a plurality of cathode plates arranged at regular intervals and a shifting means installed between said first conveyer and second conveyer for the purpose of transferring the cathode plates by a required quantity thereof from the first conveyer to the second conveyer, thereby rendering it possible to perform the supply and the discharge of cathode plates stably at all times without being affected by the fluctuations of the quantity of cathode plates on both conveyers through the control of the operation of the first and the second conveyers as well as the shifting means.

Abstract: Spray apparatus for coating bottles with resin except on their bottoms, for the purpose of preventing the explosion of the bottles. In order to prevent adhesion of the resin to the bottom, bottles are suspended and moved in a row and a belt is provided to move together with the suspended bottles below and near their bottoms and at the same speed as the bottles.

Abstract: A method and apparatus for judging the purity of a purified zinc sulphate solution used for the electrolytic production of zinc, which are based on the finding that the purity of the purified electrolyte has a fixed relationship with the ratio between the amount of hydrogen gas and the amount of oxygen gas generated by electrolysis of the purified electrolyte. According to the method and apparatus, a mixture of hydrogen gas and oxygen gas generated by the electrolysis of the purified zinc sulphate solution is charged in a combustion chamber of predetermined volume and ignited by a heater to ignite the hydrogen gas, and the difference between the internal pressures of the combustion chamber before and after the combustion of the hydrogen gas is detected for measuring the hydrogen gas content in the gas mixture.

Abstract: The invention is to a method for the hydraulic mining of coal of varying hardness. It is described in particular as to coal of the type occurring in the Balmer Seam in British Columbia. By the method at least two parallel spaced entries are driven upward through a seam of coal. Monitors are positioned in each entry. Each monitor is horizontally and vertically pivotable, and has nozzle means from which a jet of water under a pressure of about 1900 - 2200 p.s.i. is emitted. The high pressure jet cuts the coal, which is then fed to a machine that breaks and crushes the coal into sizes wherein the resultant coal/water slurry will flow down a sloped flume into a dewatering station.The method further embodies differentially retreating along adjacent parallel entries by increments of desirably at least about 40 feet each.

Abstract: A device for producing an obliquely oriented film of thermoplastic synthetic resin comprising an extruder, an annular die for forming the resin extruded from the extruder, a first mandrel, a second mandrel, and drawing rolls for drawing the resinous film passed over the first mandrel and then second mandrel. Said first and second mandrels are rotated in the different directions from each other.

Abstract: A copper foil having high bond strength with an insoluble particle-containing metal plate formed thereon, the plated copper foil being adapted for use in the preparation of, for example, a printed circuit.