Abstract: The present invention relates to the preparation of alicyclic polycarboxylic esters by ring-hydrogenation of the corresponding aromatic polycarboxylic esters on a catalyst which comprises at least one metal from the triad iron, cobalt, nickel, and at least one metal of the IInd, IIIrd, IVth, Vth, and/or VIth transition group of the Periodic Table. An alicyclic carboxylic ester mixture with a proportion above 10 mol % of the trans isomers. The use of the alicyclic polycarboxylic ester mixtures. Mixtures made from plastics and from alicyclic polycarboxylic ester mixtures.

Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.

Abstract: The invention relates to a process 1-olefins b telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal telomerization catalyst, hydrogenation of the telomer and cleavage of the hydrogenated intermediate. Use of he 1-olefin as comonomer.

Abstract: The invention relates to a process for preparing 1-octene by reacting 1,3-butadiene with a telogen of the formula H—X—Y—H, where X is O, N, S or P and Y is C, N or Si and X and Y bear, depending on their valence, further substituents, in the presence of a telomerization catalyst to form a telomer of the formula H2C═CH—CH2—CH2—CH2—CH═CH—CH2—X—Y—H, partially hydrogenating the telomer to form a 1-substituted 2-octene of the formula H3C—CH2—CH2—CH2—CH2—CH═CH—CH2—X—Y—H and dissociating the 1-substituted 2-octene to give 1-octene.

Abstract: Alkyl tert-alkyl ethers are cleaved into the corresponding isoolefins and alkanols by a process comprising acid-catalyzed reactive distilling an alkyl tert-alkyl ether fed into the reaction zone of a reactive distillation apparatus as an azeotrope of the alkyl tert-alkyl ether and the corresponding alkanol, wherein the reactive distillation apparatus is configured from bottom to top as a bottom zone, at least one distillation zone and a reaction zone. The process is suitable for the cleavage of primary, secondary and tertiary alkyl tert-alkyl ethers, in particular MTBE.

Abstract: Alkyl tert-alkyl ethers are cleaved into the corresponding isoolefins and alkanols by a process comprising acid-catalyzed reactive distilling an alkyl tert-alkyl ether fed into the reaction zone of a reactive distillation apparatus as an azeotrope of the alkyl tert-alkyl ether and the corresponding alkanol, wherein the reactive distillation apparatus is configured from bottom to top as a bottom zone, at least one distillation zone and a reaction zone.