Abstract: Process for conditioning waste sulfuric acid which is prone to precipitation of tars or resins, which comprises adding emulsifiers, preferably long-chain polyethers, to the waste sulfuric acid.

Abstract: Sucrosetricarboxylic acid can be prepared by oxidizing sucrose with oxygen, if desired in a mixture with inert gases, by means of a more effective catalyst than platinum/alumina.The product can be used in washing agents or as a food additive.

Abstract: A process for the preparation of a mixture of sucrose oxidation products which contains a salt of sucrosetricarboxylic acid and which is obtained by reaction of sucrose with oxygen in an aqueous medium in the presence of a platinum metal/active carbon catalyst at elevated temperatures and neutralization of the reaction product to convert into the salt form, which comprises the reaction being carried out discontinuously, the starting materials being heated stepwise over the course of several hours from room temperature up to 60.degree. to 95.degree. C. and then the reaction product being isolated where appropriate.The oxidation products obtained in this way have, in particular, improved washing properties.

Abstract: Alkylated glycosyl fluorides free from hydroxyl groups can be prepared by converting glycosyl fluorides which still contain hydroxyl groups into the alkylated compounds in the manner of Williamson's ether synthesis in the presence of basic systems by means of alkylating agents.

Abstract: Polysaccharides built up from anhydroglucose are obtained when glucose or carbohydrates containing glucose as the monomer structural unit are condensed with polyhydric alcohols in hydrogen fluoride. The products may be used as water binding agents and water retaining agents, especially for dietetic foodstuffs.

Abstract: Glycosyl halides which are O-acylated or O-alkylated at least in the 2-position are transhalogenated with alkali metal hydrogen difluorides in a polar-aprotic solvent and, if appropriate, the product is anomerized with the addition of less than the stoichiometric amounts of an inorganic fluoride with a Lewis acid character. Depending on the substrate, the glycosyl fluorides with the 1,2-trans or 1,2-cis configuration are obtained.

Abstract: A process for the manufacture of glycosides which comprises reacting a protected hexopyranosyl fluoride with an aglycon or a silyl ether thereof in the presence of a metal fluoride of group IV or V of the periodic table, said metal having an atomic number of at least 22 and being present in the fluoride in a higher, stable and non-oxidizing or weekly oxidizing stage.