Abstract: Fungicidal mixtures, comprising as active components 1) 1-methylpyrazol-4-ylcarboxanilides I in which X=oxygen or sulfur, R1=halogen, C1-C4-alkyl or C1-C4-haloalkyl, R2?H or halogen and R3=nitro, cyano, halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy or C1-C4-alkylthio and 2) at least one active compound II, selected from the active compound groups A) to F): A) azoles; B) strobilurins; C) carboxamides; D) heterocyclic compounds; E) carbamates; F) other fungicides; in a synergistically effective amount, methods for controlling harmful fungi using mixtures of at least one compound I and at least one active compound II and the use of the compound(s) I with active compounds II for preparing such mixtures, and also compositions and seed comprising such mixtures.

Abstract: A process for continuous industrial production of unsaturated aliphatic aldehydes having a boiling range from 95 to 136.degree. C. by oxidative dehydrogenation of the corresponding alcohols with an oxygen-comprising gas over a supported catalyst consisting of copper, silver and/or gold on an inert support in a tube bundle reactor, rapid cooling of the reaction gases and removal of the aldehydes from the resulting condensate with recycling of the unconverted alcohols comprisesa) vaporizing the alcohol,b) admixing the alcohol vapor with an oxygen-comprising gas,c) initially passing the resulting oxygen-comprising alcohol vapor at above the dew point of the alcohol but below the commencement temperature of the reaction through a layer of one of the abovementioned supported catalysts which is at least 0.5 cm in thickness and only thend) reacting the oxygen-comprising alcohol vapor at from 300 to 600.degree. C.