Abstract: A wool-wax substitute and a process for its formation are disclosed where the wool-wax substitute is the product of esterification of 1 mole of a glycerol-polyglycerol mixture with:(a) from 0.5 to 1.1 moles of a saturated aliphatic monocarboxylic acid having from 6 to 10 carbon atoms, or mixtures thereof;(b) from 0.5 to 1.1 moles of an unsubstituted straight chained saturated aliphatic monocarboxylic acid having from 16 to 22 carbon atoms, or mixtures thereof;(c) from 0.0 to 0.6 mole of an aliphatic saturated branched-chain monocarboxylic acid having from 16 to 18 carbon atoms;(d) from 0.0 to 0.5 mole of a saturated monocarboxylic acid having from 16 to 20 atoms and containing hydroxyl groups, or mixtures thereof, and(e) from 0.5 to 1.0 mole of saturated aliphatic dicarboxylic acids having from 4 to 10 carbon atoms, or mixtures thereof.The wool-wax has a hydroxyl number ranging from 20 to 100 and acid and iodine numbers under 5.

Abstract: A process for separating hydrocarbons from waste water, in particular aromatic hydrocarbons, by means of an absorbing filtering layer. The hydrocarbons dissolved and non-dissolved in the waste water are separated in a single stage. The waste water is supplied to a metallic slotted multiple tube filter, and a hydrocarbon-containing material, preferably coking duff, is used as an adsorbing filtering layer. Its grain size distribution in the particle size range between 0.05-0.2 mm has a mass proportion of at least 25% by weight, with a total surface area of at least 1500 cm.sup.2 /g. The filtering material can be made to float on the filtering elements or added to the waste water.

Abstract: Metal candle-type gap filters are used to remove particles from a hot gas stream containing sulfur oxides so that, in the filter cake which is built up upon the candle filters, the sorption reaction can continue as the hot gas stream passes through the filter.

Abstract: Viscous, gel-like ester mixtures of reaction products of fatty acid polyol partial esters and gamma-glycidoxypropyltrialkoxysilanes, which can contain, if desired, dicarboxylic acids as additional reaction components, and methods for their preparation are disclosed. The ester mixtures are especially provided as additives for oily liquids for the preparation of gels or for increasing viscosity. Also, spreadable preparations are disclosed, which are produced from a component of oily consistency and, preferably, an active agent contained therein, which, because they contain the new ester mixtures, consisting of products of the reaction of partial esters of polyols of the aliphatic monocarboxylic acids and, in some cases, the aliphatic dicarboxylic acids, with gamma-glycidoxypropyltrialkoxysilanes of high ability to adhere to the skin, are difficult to wash from the skin and make the skin difficult to wet.

Abstract: Completely biodegradable, toxicologically innocuous, oxidation-resistant, flavorless and odorless, light-colored, homogeneous liquid ester mixtures with low turbidity points, low evaporation losses at elevated temperatures, and viscosities and densities adjustable as desired, comprising the products of esterification of 1 mol of glycerin with from 1.4 to 2.8 mols of a saturated aliphatic monocarboxylic acid having from 6 to 10 carbon atoms, or mixtures thereof, and from 0.1 to 0.8 mol of a saturated aliphatic dicarboxylic acid, or mixtures or anhydrides thereof, said ester mixtures having hydroxyl numbers ranging from 5 to 20 and an acid number of less than 5.

Abstract: The filter cake resulting from the filtration of tar, pitch, coal extract or coal oil with the help of a filter aid, is dried by blowing an inert gas through it. Thereafter it is comminuted to a particle size of about 0.5 mm and these particles are heated in a fluidized bed at the rate of 1000.degree. C./min to a temperature of 500.degree.-1200.degree. C. There is obtained a size mix of swelled particles from which a fraction having a size of about 0.05-0.3 mm is segregated and recirculated to the filter as a filter aid. Particles having a size above or below the segregated fraction are thermally decomposed, as are gaseous and liquid products which are liberted during the thermal treatment in the fluidized bed.

Abstract: Surface active, liquid, hydroxyl-containing mixed esters which are condensation products of:(a) 1 mole of triethanolamine, glycerine, trimethylolpropane or pentaerythritol,(b) 1 to 2 moles of a saturated, branched, aliphatic or cycloaliphatic carboxylic acid of 16 to 26 C atoms or mixtures thereof, and(c) 0.1 to 0.9 moles, preferably 0.1 to 0.7 moles, of an aliphatic straight-chain or branched dicarboxylic acid of 3 to 10 C atoms, or mixtures thereof.