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The results of the dehydration of C5-raw material to obtain furfural via heterogeneous catalysis in water are discussed. Furfural has the potential to substitute fossil compounds on a large scale for polymers, solvents, fine chemicals and finally fuels. Industrial catalysts were reviewed and new catalysts were synthesized. The main difference to recent work is the abdication of supercritical fluids, organic solvents, phase modifiers and ionic liquids. With this also the contamination of the product is prevented and higher product qualities are obtained

This investigation explored means for using chemisorption to enhance the separability of organic isomers and homologs. Most of the study dealt with the 2-and 4-nitroso-lnaphthols, used to evaluate chelation.A limited amount of work was devoted to evaluating coordination complexes using lower aliphatic amines. Results point to the usefulness of lowcapacity salts and impregnated highcapacity oxides as chromatographic sorbents.