Abstract: A method is disclosed of preparing alcohols having 2 to 4 carbon atoms by catalytic hydration of the corresponding olefins on acid catalysts at elevated temperature and elevated pressure, characterized in that byproducts of the hydration, namely corresponding ethers and/or low-polymerized hydrocarbons and/or undesired alcohols, which form upon the passage of the input product through catalyst bed, are fed to the input product before entry into the reactor, said method being characterized in that:A. When ethylene is the olefin, the reaction is conducted at a temperature of 200.degree.-300.degree. C.; andB: When propylene is the olefin the reaction is conducted at a temperature of 150.degree. to 220.degree. C.

Abstract: A polyamide copolymer, useful as a melt adhesive especially for textiles, produced from the following monomers1. An unbranched aliphatic dicarboxylic acid with 6-20 C-atoms;2. A diamine mixture consisting of(a) 20-80 mol percent, unbranched aliphatic diamines with 6-20 C-atoms; and(b) 80-20 mol percent branched aliphatic and/or cycloaliphatic diamines;said copolymer having a molecular weight of 2000-40000.

Abstract: A polyamide copolymer, useful as a melt adhesive especially for textiles, produced from the following monomers1. An unbranched aliphatic dicarboxylic acid with 6-20 C-atoms;2. A diamine mixture consisting of(a) 20-80 mol percent, unbranched aliphatic diamines with 6-20 C-atoms; and(b) 80-20 mol percent branched aliphatic and/or cycloaliphatic diamines;said copolymer having a molecular weight of 2000-40000.

Abstract: An improvement for producing a coating from a powder lacquers composition comprising at least one 1,2-epoxide compound having at least one 1,2-epoxide group in the molecule which compound has a lower melting point greater than 40.degree. C.

Abstract: An improvement in a process for the preparation of a solvent-free exclusively aqueous dispersion of a thermally linkable, storage stable, light stable polyurethane obtained by the reaction of a hydroxy group containing polyester composition and a diisocyanate in a ketonic solvent at 10.degree.-50.degree. C. employing the hydroxyl containing polyester and diisocyanate in amounts such that there are 1.5-2.0 NCO equivalents per OH group and the reaction product is thereafter reacted with a primary diamine, secondary diamine or diol in such an amount that 30-70% of the existing free NCO groups on said reaction product are reacted and the resultant reaction product is dispersed in water and said ketonic solvent is removed. The invention resides in that one uses as diisocyanate the uretdione of the 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate.

Abstract: Phosphoric acid with a high fertilizer-nutrient content is produced by decomposing phosphate rock with nitric acid followed by precipitation of calcium ions with sulfate. The steps of the process are as follows:A. Decomposing phosphate rock with (7-2x) to (17-2x) mol nitric acid and x mols sulfuric acid per mol phosphorous pentoxideA.sub.1 whereby x may take on any values between 0 and a maximum value X, which is limitedA.sub.2 by the condition that the mol ratio H.sub.2 SO.sub.4 :HNO.sub.3 may never exceed the value 8:1 andA.sub.3 by the condition that in the decomposition solution, into which, if need be, also ammonium sulfate is introduced, the content of sulfate ions after precipitation of the semihydrate gypsum is between 10 to 150 g/l solution;B. Adding--if no or not enough sulfuric acid has been used for precipitating calcium sulfate--ammonium sulfate in amounts corresponding to condition A.sub.

Abstract: A process for preparing fast setting varnishes for coating preferably metallic materials with highly deformable coatings by thermal treatment at temperatures exceeding 175.degree. C., preferably at 180.degree.-450.degree. C., consisting of a binding agent mixture dissolved in high-boiling varnish solvents and consisting of50-90 percent by weight of a high-molecular, hydroxyl-group containing polyester on the basis of mainly aromatic dicarboxylic acids and diols and/or triols having 4-12 carbon atoms; and10-50 percent by weight of adducts on the basis of 3-isocyanato-methyl-3,5,5-trimethylcyclohexylisocyanate blocked with .epsilon.-caprolactam; plus, if desired, varnish additives, dyes and/or pigments.

Abstract: A method for the preparation of high-melting resins which comprises polymerizing a butadiene-rich C.sub.4 -cut of C.sub.4 -olefins with a liquified protonated Friedel-Crafts catalyst of the formulaAlX.sub.n R.sub.m.HXwhereinX=cl, Br, I;R=c.sub.1 -c.sub.4 alkyl or isoalkyl group;N=1-3;M=0-2;Wherein the catalyst is liquified with alkyl benzenes containing C.sub.1 -C.sub.4 alkyl or isoalkyl groups and wherein the C.sub.4 -olefin cut is used with a content of from 50-70% of 1,3-butadiene and the polymerization takes place at 35.degree.-80.degree. C. The high-melting resin obtained by the aforementioned method.

Abstract: A process for the hydration of olefins to prepare alcohol is disclosed, the hydration being effected in the presence of a phosphorus acid-containing catalyst. There is disclosed a process in which vaporized phosphoric acid is admixed with a gas mixture before the same is added to the reactor, the phosphoric acid being in an amount corresponding to the amount of phosphoric acid discharged during the hydration. In such amount the process can be carried out without further phosphoric acid addition.

Abstract: A process for the purification of pressurized gases, such as those emanating from the partial gasification resp. combustion of fuel, which gases contain Ni(CO).sub.4, which comprises contacting said Ni(O).sub.4 containing gas with a solvent at a temperature of from -60 to 0.degree. C., thereby forming a solution containing the gases and dissolved Ni(CO).sub.4, and thereafter heating said solution at a temperature of from 70 to 250.degree. C. for at least 0.25 hour at a pressure higher than the vapor pressure of said solvent, thereby precipitating and thereafter recovering nickel compound and releasing a purified solvent.

Abstract: An improved process in the preparation of sustained release fertilizer compositions which comprises subjecting a preponderantly water-soluble granular fertilizer composition first to accretive granulation under accretive granulation conditions with a melt, solution or slurry of one or several fertilizers and in a second stage coating these treated grains with a suitable almost impermeable envelopment.

Abstract: An adsorbent consisting of carbon black pellets, which is formed by aggregation with oil/fats/waxes and other distillation residues of the water containing carbon black separated during the partial gasification/partial combustion of solids and/or liquid combustibles and wherein said aggregation medium is then separated.

Abstract: A method of producing coatings on the basis of two-component systems composed of 1,2-epoxy compounds having at least one 1,2-epoxy group in the molecule, plus cyclic amidines and the conventional paint additives, which are thermosetting at 100.degree. to 200.degree. C, the said method being characterized in that one uses as cyclic amidines imidazoline or tetrahydropyrimidine derivatives of the general formula ##STR1## IN WHICH N EQUALS 2 OR 3; M EQUALS 1 OR 2; R.sub.1, R.sub.2 and R.sub.3 are identical or different, and represent hydrogen, alkyl, aryl, aralkyl, cycloalkyl, heterocyclics, ether, theoether, halogen, --N(R).sub.

Abstract: An improved ruminant feed containing rumen stabilized particulate proteinaceous feed material which is unstable in solutions having a pH value smaller than 4 and relatively stable in solutions having a pH value larger than 5, said feed composition including at least one non-proteinaceous nitrogen compound. The non-proteinaceous nitrogen compound is present in a weight ratio of 0.1 to 10.0 based upon the weight equivalents of nitrogen in the rumen stabilized albuminous component.

Abstract: A process for the purification of phosphate containing impure gypsum to obtain therefrom calcium sulfate semihydrate in a purified form by digesting the phosphate containing gypsum with nitric acid at a temperature between 22.degree. and 100.degree. C, the temperature and nitric acid concentration being regulated such as to dissolve most of the phosphate impurities and to allow the recovery of calcium sulfate semihydrate.

Abstract: Ammonium polyphosphate is manufactured on a continuous basis by reacting gaseous ammonia and aqueous phosphoric acid at elevated temperatures in a one or multiple stage falling film reaction zone in the presence of a diluting gas if desired, using wet phosphoric acid, preferably containing 28-32%, by weight P.sub.2 O.sub.5 and an excess of ammonia. The phosphoric acid and the gaseous ammonia are preferably carried in counterflow and the temperature in the falling film reaction zone is adjusted using heat transfer fluids to within the range of 120.degree. - 260.degree. C.

Abstract: Olefins having two and three carbon atoms are hydrated in the presence of phosphoric acid-containing supported catalysts to the corresponding alcohols. For the hydration of olefins having two carbon atoms, the molar ratio of water to olefin is in the range of about 0.1-0.3 : 1, the reaction temperatures in the range of about 190.degree.-230.degree.C, and the reaction pressure is in the range of about 60-80 atmospheres gauge. For the hydration of olefins having three carbon atoms, the molar ratio of water to olefin is in the range of about 0.1-0.3 : 1, the reaction temperatures in the range of about 140.degree.-170.degree.C and the reaction pressure is in the range of about 20-45 atmospheres gauge. The only by-products which form in addition to the raw alcohol under these conditions are steam-volatile (water soluble) by-products which are separated from the raw alcohol in a washing extraction zone.

Abstract: Methyl isobutyl ketone is produced in a one-step process by contacting acetone and hydrogen at a temperature of from about 50.degree.-200.degree.C and a pressure between 50-100 atm, preferably 60-100 atm, in the presence of a catalyst composed of a cation exchange resin having from 0.001 to 0.1 weight percent of a noble metal distributed in monoatomic form therein.

Abstract: Coatings having a matt finish are made by applying a powder varnish composition to a substrate and thereafter reacting the varnish at a temperature of 100.degree. to 240.degree.C to form the matt finish coating. The powder varnish composition is a finely divided, particulate mixture ofI. a 1,2-epoxy compound having a melting point greater than 40.degree.C and containing at least one 1,2-epoxy group; andIi. a salt of a polycarboxylic acid (such as pyromellitic acid) containing three or more carboxyl groups and a cyclic amidine (such as 2-phenylimidazoline).

Abstract: A polyurethane coating lacquer composition for substrates such as wood, metal, concrete, leather and plastics includes conventional solvents andI. the reaction product of 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate with branched chain polyesters having terminal hydroxyl groups based on mixtures of aliphatic and aromatic dicarboxylic acids, said polyester and said isocyanate being reacted without a catalyst at 10.degree.-35.degree.C. in such quantities that there are two isocyanate groups per --OH group, and 15-85 mol percent of the dicarboxylic acids are aliphatic and the remainder aromatic acids; andIi. an aldime having the formula ##SPC1##Wherein each R is the same or different alkyl having 1 to 8, preferably 1 to 4 carbon atoms.