Reduction of metal salts with tetraalkylammonium hydrotriorganoborates in organic phases yields a very narrow size range of metal colloids of the elements of groups 6–11. Adsorbed on carrier surfaces, these colloids are highly active hydrogenation catalysts whose activity can be further increased by doping with low‐valent organotitanium compounds.

Hydrothermal carbonization is an attractive process for converting biomass with high water content into different products. The requirements on the products, which may be soil improvement or substitution of lignite or carbon black, are opposed to biomass as a feedstock that has a very complex and variable composition. The goal of this work was to study the influence of an ingredient, here lignin, on carbonization, with the focus being not only on the composition but also on the structure of the product formed.

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Durch Reduktion von Metallsalzen mit Tetraalkylammoniumhydrotriorganoboraten in organischer Phase können Metallkolloide der Elemente der Gruppen 6‐11 erhalten werden. Auf Trägeroberflächen adsorbiert sind diese Metallkolloide hochwirksame Hydrierkatalysatoren, deren Aktivität sich noch durch Dotierung mit niedervalenten Organotitanverbindungen steigern läßt.

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