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Priority to ES0192513ApriorityCriticalpatent/ES192513A1/en
Publication of ES192513A1publicationCriticalpatent/ES192513A1/en
Procedimiento para la recuperación de la 2-aminopiridina de los líquidos residuales de la obtención de la sulfamidopiridina que consiste en acidular dichos líquidos residuales concentrarlos al mínimo volúmen alcalinizar el concentrado y destilarlo en corriente de vapor que arrastra la 2-aminopiridina pura.Procedure for the recovery of 2-aminopyridine from the residual liquids of obtaining sulfamidopyridine, which consists of acidifying said residual liquids, concentrating them to a minimum volume, alkalizing the concentrate and distilling it in a stream of steam that carries the pure 2-aminopyridine.
ES0192513A1950-03-281950-03-28
PROCEDURE FOR THE RECOVERY OF 2-AMINOPYRIDINE FROM THE RESIDUAL LIQUIDS OF THE OBTAINING OF SULFAMIDOPYRIDINE
ExpiredES192513A1
(en)
A MECHANICAL SYSTEM FOR THE OBTAINING OF THE INDUSTRIAL USE OF THE NATURAL ENERGIES OF THE SEAS, PRODUCED BY THE SHOCK OF THE BREAKING WAVES, THROUGH MULTIPLE WHEELS OF RADIAL PALLETS
A NEW PROCEDURE OF HYDROGENATION, OF GENERAL APPLICATION IN PRODUCTS OF ORGANIC OR INORGANIC SYNTHESIS, WITHOUT CONTRIBUTION OF ADDITIONAL HYDROGEN TO THE REACTION