Abstract: Subject of the invention is a method for the production of a cyanopyridine, wherein (A) a gaseous reaction product comprising the cyanopyridine is produced in a reactor, (B) the gaseous reaction product is quenched with water in a column (2) and a gaseous phase is obtained, which is depleted from at least a portion of the cyanopyridine, (C) the gaseous phase is transferred to a condenser, in which a condensate is obtained, and the gaseous phase is depleted from at least a portion of the water, and (D) the gaseous phase from the condenser is passed through at least one heat exchanger. Another subject of the invention is a device for carrying out the invention.

Abstract: Subject of the invention is a dehydrogenation catalyst for dehydrogenating methylpiperidine to methylpyridine. Subject of the invention are also methods for preparing the catalysts obtained thereby and methods, in which the catalysts are used.

Abstract: Subject of the invention is a method for the production of a cyanopyridine, wherein (A) a gaseous reaction product comprising the cyanopyridine is produced in a reactor, (B) the gaseous reaction product is quenched with water in a column (2) and a gaseous phase is obtained, which is depleted from at least a portion of the cyanopyridine, (C) the gaseous phase is transferred to a condenser, in which a condensate is obtained, and the gaseous phase is depleted from at least a portion of the water, and (D) the gaseous phase from the condenser is passed through at least one heat exchanger. Another subject of the invention is a device for carrying out the invention.

Abstract: Subject of the invention is a method for the production of a cyanopyridine, wherein (A) a gaseous reaction product comprising the cyanopyridine is produced in a reactor, (B) the gaseous reaction product is quenched with water in a column (2) and a gaseous phase is obtained, which is depleted from at least a portion of the cyanopyridine, (C) the gaseous phase is transferred to a condenser, in which a condensate is obtained, and the gaseous phase is depleted from at least a portion of the water, and (D) the gaseous phase from the condenser is passed through at least one heat exchanger. Another subject of the invention is a device for carrying out the invention.

Abstract: Subject of the invention is a dehydrogenation catalyst for dehydrogenating methylpiperidine to methylpyridine. Subject of the invention are also methods for preparing the catalysts obtained thereby and methods, in which the catalysts are used.

Abstract: Subject of the invention is a dehydrogenation catalyst for dehydrogenating methylpiperidine to methylpyridine. Subject of the invention are also methods for preparing the catalysts obtained thereby and methods, in which the catalysts are used.

Abstract: Subject of the invention is a method for the production of a cyanopyridine, comprising the steps of (a) providing a column comprising an absorber section and a stripping section, the absorber section being positioned above the stripping section, such that liquid which passed the absorber section enters the stripping section, (b) feeding a gaseous phase comprising the cyanopyridine into the column, (c) contacting the gaseous phase with an aqueous solution in the absorber section, such that at least a portion of the cyanopyridine is dissolved in the aqueous solution, (d) stripping the aqueous solution obtained from the absorber section in step (c) with a stripping gas in the stripping section, and (e) eluting an aqueous solution comprising the cyanopyridine from the bottom of the column. Another subject of the invention is a device for carrying out the invention.

Abstract: Subject of the invention is a dehydrogenation catalyst for dehydrogenating methylpiperidine to methylpyridine. Subject of the invention are also methods for preparing the catalysts obtained thereby and methods, in which the catalysts are used.

Abstract: Subject of the invention is a method for the production of a cyanopyridine, wherein (A) a gaseous reaction product comprising the cyanopyridine is produced in a reactor, (B) the gaseous reaction product is quenched with water in a column (2) and a gaseous phase is obtained, which is depleted from at least a portion of the cyanopyridine, (C) the gaseous phase is transferred to a condenser, in which a condensate is obtained, and the gaseous phase is depleted from at least a portion of the water, and (D) the gaseous phase from the condenser is passed through at least one heat exchanger. Another subject of the invention is a device for carrying out the invention.

Abstract: Subject of the invention is a method for the production of a cyanopyridine, comprising the steps of (a) providing a column comprising an absorber section and a stripping section, the absorber section being positioned above the stripping section, such that liquid which passed the absorber section enters the stripping section, (b) feeding a gaseous phase comprising the cyanopyridine into the column, (c) contacting the gaseous phase with an aqueous solution in the absorber section, such that at least a portion of the cyanopyridine is dissolved in the aqueous solution, (d) stripping the aqueous solution obtained from the absorber section in step (c) with a stripping gas in the stripping section, and (e) eluting an aqueous solution comprising the cyanopyridine from the bottom of the column. Another subject of the invention is a device for carrying out the invention.

Abstract: A method for preparing, from at least one hygroscopic substance, mixtures that can be granulated and that have little hygroscopicity. The corresponding mixtures, especially carnitine-magnesium citrate and carnitine-magnesium hydroxycitrate, are produced.

Abstract: A process for preparing solid formulations of sodium 3-hydroxy-3-methylbutyrate of the formula in which, in a first process step, 4,4-dimethyloxetan-2-one is reacted with aqueous sodium hydroxide to form a solution of sodium 3-hydroxy-3-methylbutyrate, and then, if appropriate after concentration, the solution is applied, in a further process step, to synthetic silica, and in which the resultant product is, if appropriate, dried.

Abstract: A method for preparing, from at least one hygroscopic substance, mixtures that can be granulated and that have little hygroscopicity. The corresponding mixtures, especially carnitine-magnesium citrate and carnitine-magnesium hydroxycitrate, are produced.

Abstract: Solid formulations of sodium 3-hydroxy-3-methylbutyrate are produced by the hydrolysis of 4,4-dimethyl-2-oxetanone with aqueous sodium hydroxide to give a solution of sodium 3-hydroxy-3-methylbutyrate and the solution obtained thus is absorbed onto synthetic silicic acid. Said formulations are lightly hygroscopic and easily handled.

Abstract: The invention relates to a method for preparing, from at least one hygroscopic substance, mixtures that can be granulated and that have little hygroscopicity. The invention further relates to the corresponding mixtures, especially carnitine-magnesium citrate and carnitine-magnesium hydroxycitrate.