Abstract: Solid cyanuric chloride is recovered by a process of spraying in the presence of a cooling medium liquid cyanuric chloride which preferably is freed from chlorine and cyanogen chloride, the cyanuric chloride is sprayed with the aid of known spraying apparatus into a separation container optionally with a propellant, while simultaneously with the cyanuric chloride spraying a liquid cooling medium through a second spraying apparatus separate from the first spraying apparatus, withdrawing the solidified cyanuric chloride from the separatory container and drawing off the resulting now gaseous cooling medium containing cyanuric chloride from the lower portion of the separatory container.

Abstract: The process described in Klenk U.S. Pat. No. 4,113,773 is improved by employing alkali metal cyanide in which at least half of the alkali metal cyanide has a particle size below 0.4 mm and the remainder has a particle size below 1.0 mm.

Abstract: A shoe cream polish composition which contains in addition to waxes, oils and the like, a finely divided pyrogenic, hydrophobic silicic acid.

Abstract: Hydrophobic precipitated silicic acid is disclosed and its use as a reinforcing filler in plastic masses which are hardenable to form elastomers.

Abstract: There are produced 6-aryl-s-triazolo-(4,3-a)-pyrido-(2,3-f)-(1,4)-diazepines of the formula: ##STR1## wherein R.sub.1 is hydrogen, a halogen atom, an alkyl mercapto group having 1 to 6 carbon atoms,R.sub.2 is hydrogen, an alkyl group with 1 to 6 carbon atoms,R.sub.3 is hydrogen or a halogen or a halogen atomthe structural part A-B is the group --CH.sub.2 .dbd.NH--and Y-Z is the group >C.dbd.N--, >C.dbd.N(.fwdarw.O), and Y-Z is the group >C.dbd.N--, their optical isomers and their pharmaceutically acceptable salts. The compounds have anticonvulsive properties.

Abstract: Methyl isocyanate is prepared by reacting an alkali cyanate with dimethyl sulfate in the presence of an alkaline earth metal oxide and in an inert organic liquid. There can also be present an alkali metal or alkaline earth metal salt.

Abstract: There are prepared compounds of the formula ##STR1## where >A--B-- has either the structure >C(OH)--CH.sub.2 -- or the structure >C.dbd.CH, Alk is a straight or branched chain C.sub.1 -C.sub.5 - alkylene group and -NHY is ##STR2## where R' is hydrogen, phenyl, phenyl substituted once or twice by C.sub.1 -C.sub.4 -alkyl groups, a C.sub.1 -C.sub.4 -alkoxy group or by halogen atoms, a C.sub.1 -C.sub.6 -alkyl group, a C.sub.1 -C.sub.4 -hydroxyalkyl group or a phenalkyl group whose alkyl portion consists of 1-4 carbon atoms or such a phenalkyl group containing 1 to 3 C.sub.1 -C.sub.4 -alkoxy group substituents. The compounds are effective in improving peripheral and cerebral circulation. There are also produced intermediate compounds of formula (II) where NHY is replaced by chlorine, bromine or iodine.

Abstract: An improved process for the production of tenside-containing aluminosilicates having cation exchange capacity by precipitating the same from aqueous solutions of alkali metal silicates and alkali metal aluminates in the presence of ionic surface-active compounds from the group consisting of anionic surface-active compounds, cationic surface-active compounds and zwitterionic surface-active compounds, wherein the excess alkalinity is neutralized by conducting said process in the presence of an acid aluminum salt such as aluminum sulfate, aluminum nitrate and aluminum chloride.

Abstract: Impact resistant glass laminates formed of at least one silicate glass panel and at least one polycarbonate panel bonded together by a methacrylate resin formed from at least 50% by weight of the polymerizable mixture of 2-ethylhexyl methacrylate.

Abstract: Catalysts used in the epoxidation or hydroxylation of water soluble olefinic compound with hydrogenperoxide are recovered by separating the catalyst as a distillation residue, the distillation residue is introduced into an inert material which is in whirling movement, e.g., as a fluidized bed, the organic compounds contained in the distillation residue are burned with oxygen or oxygen containing gases whereupon the catalyst compound separated on the inert whirling material together with the portion of the catalyst compound which accumulates in the solids separator connected at the outlet of the reactor is dissolved in water and the solution obtained again used for epoxidation or hydroxylation.

Abstract: There is provided a carbon black concentrate of the following composition:______________________________________ Carbon Black 10 to 50 weight % Plasticizer 5 to 30 weightt % Nitrocellulose Compatible Alkyd Resin 0 to 30 weight % Nitrocellulose Staple Fibers 30 to 80 weight % Dispersing Agent Consisting of Metal Oleates or Metal Octoates 0.5 to 2.5 weight % ______________________________________The concentrate is useful as a pigmenting agent, e.g., for lacquers and printing inks.

Abstract: Carbon black low in coke and grit is produced at a higher hourly rate and higher yield per unit of oil employed in a furnace black reactor using a burner-injector combination for the production of heat energy and for the injection of very fine drops of carbon forming material (feed/stock) by a process which uses a reactor with a restriction mixing the liquid carbon black forming material supplied through an inner tube of the burner-injector combination with a gaseous atomizing medium supplied from a jacket tube surrounding this inner tube, the jacket tube being conically tapered before an exit nozzle, said mixing occurring just before the exit nozzle, the outermost fuel gas jacket being so provided with relatively few gas openings that the fuel gas pressure at the burner amounts to over 1.5 atmospheres absolute and the fuel gas exit speed is over 320 meters per second.

Abstract: There are prepared sodium percarbonate particles comprising a sodium percarbonate nucleus encased in a layer of a mixture of dehydrated sodium perborate and sodium silicate prepared by spraying the sodium percarbonate with a supersaturated solution of sodium perborate and a sodium silicate solution and drying to at least partially remove the added water.

Abstract: There are prepare half amides (semi-amides) of unsaturated aliphatic dicarboxylic acids of the formula: ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen, halogen, a hydroxy group, a methyl group or a methoxy group or two of these together are a methylenedioxy group, R.sub.4 is hydrogen or a methyl group, R.sub.5, R.sub.6 and R.sub.7 independently are hydrogen or C.sub.1 -C.sub.4 alkyl groups and n is 0 or 1 and their salts with the proviso that in the case of the free acids N[2-(3-hydroxyphenyl)-2-hydroxyethyl]-maleic acid monoamide is excluded. The compounds have blood pressure raising activity and also have antidepressive activity.

Abstract: There is provided a process for treating air-borne dust containing silicon dioxide in order to form a silicic acid or a silicate. The air-borne dust is dissolved in an alkali metal hydroxide solution to form an alkali metal silicate solution. The alkali metal silicate solution is purified by treating it with activated charcoal and/or oxidation agents. Non-decomposable substances remaining after the purification step are removed from the alkali metal silicate solution. The alkali metal silicate solution is then reacted with acids and/or salts of aluminum, magnesium and calcium. The resulting product is then filtered, washed and dried, and then comminuted to form a finely divided, amorphous, substantially pure, precipitated, silicic acid or silicate having a whiteness according to Berger at a wave length of 460 m.mu. of about 90 to about 95% and a specific surface area of about 30 to about 800 m.sup.2 /g BET.

Abstract: There are provided shaped catalysts, particularly for the formation and/or equipping of reaction chambers with catalytically active surfaces, consisting of a structural reinforcing agent of ferrous metal, a layer of a heat resistant carrier material on the structural reinforcing agent as well as a catalytically active component on the carrier material; the body of the structural reinforcing agent consists of iron or steel and its surface is provided with a nonscaling, adhesive and anchoring enhancing aluminum/iron diffusion layer obtained by a tempering of aluminum coated iron or steel at a temperature between 600.degree. and 1200.degree. C. for at least one minute. There is also disclosed a process for making the catalysts.

Abstract: There are prepared powder enamels or varnishes containing an acrylic resin in combination with an aliphatic dicarboxylic acid. The acrylic resin has glycidyl groups and is prepared by bulk polymerizing a mixture of:(a) methyl methacrylate, 20 to 70 weight %;(b) at least one ester of acrylic acid or methacrylic acid with a monohydric alcohol, whose homopolymer has a glass transition temperature below 40.degree. C., 10 to 40 weight %;(c) glycidyl acrylate or glycidyl methacrylate, 10 to 25 weight %; and(d) an additional monomer copolymerizable with (a), (b) and (c), 0 to 50 weight %;in the presence of a radical (free radical) catalyst and in the presence of, based on the weight of the monomer mixture of 0.1 to 3.0 weight percent of at least one ester of phosphorous acid having the formula: ##STR1## where R.sub.

Abstract: 4,4'-isopropylidene-bis(2,6-dibromophenol) is produced by reacting 4,4'-isopropylidene diphenol with hydrogen bromide or a mixture of hydrogen bromide with up to an equimolar amount of free bromine in admixture with hydrogen peroxide and in the presence of water and an inert organic liquid.

Abstract: A silver free, low gold, noble metal alloy for firing on dental porcelain is prepared consisting of 30 to 55% gold, 30 to 60% palladium, 1 to 12% tin, 0 to 10% indium, 0.1 to 3% germanium, and 0.05 to 1% rhenium and/or 0.05 to 1% ruthenium.

Abstract: Furnace black is produced by a thermal splitting of a carbon black forming oil by oxidation of a fuel in a combustion chamber with production of a stream of hot combustion gases, introduction of this stream in a constricted mixing chamber narrower than the fuel chamber, inserting the carbon black forming material into the mixing chamber and conveying the mixture into an enlarged reaction chamber compared to the mixing chamber as well as quenching the carbon black containing reaction mixture, the stream of hot combustion gases being introduced into the mixing chamber via an annular channel or introducing the stream into an annular channel shaped mixing chamber and spraying in the carbon black forming material into the mixing chamber or ring conduit from within outwardly.