Abstract: Method for removal of fouling (14) and/or plugging (13) out of a bundle (11) of channels (12) by treatment with a liquid (2), in particular out of firmly interconnected channels (12), oriented in parallel to each other, as a catalyst module, which can be carried out very quickly and cost effectively, by filling the channels (12) repeatedly and alternately with the liquid (2) from their ends, and draining at least part of the filled in liquid off the same ends.

Abstract: Method for removal of fouling (14) and/or plugging (13) out of a bundle (11) of channels (12) by treatment with a liquid (2), in particular out of firmly interconnected channels (12), oriented in parallel to each other, as a catalyst module, which can be carried out very quickly and cost effectively, by filling the channels (12) repeatedly and alternately with the liquid (2) from their ends, and draining at least part of the filled in liquid off the same ends.

Abstract: Used deNOx or dedioxin catalytic converters are regenerated by washing the catalyst with a solution of surface-active substances in a liquid. At the same time, metal compounds are added for creating active centers.

Abstract: Used deNOx or dedioxin catalytic converters are regenerated by washing the catalyst with a solution of surface-active substances in a liquid. At the same time, metal compounds are added for creating active centers.

Abstract: A process and apparatus for producing pulp from impregnated cellulose-containing starting materials such as wood, straw, grass, waste materials etc. in a compacting apparatus comprising a shell (1) and two mutually opposite pistons (4, 4') contained in said shell. The material to be compacted is disposed between said pistons and constitutes a resistive electrical load. The pistons are movable relative to each other and the shell is movable relative to the pistons. The impregnated starting materials are digested at a relatively low hydromodulus of 0.5 to 2 with a direct action of heat on the impregnated starting materials in the compacting apparatus at a digesting temperature of 160.degree. to 300.degree. C. The digesting times are short and depend on the digesting temperature.

Abstract: A process and apparatus for producing pulp from impregnated cellulose-containing starting materials such as wood, straw, grass, waste materials etc. in a compacting apparatus comprising a shell (1) and two mutually opposite pistons (4, 4') contained in the shell. The material to be compacted is disposed between the pistons and constitutes a resistive electrical load. The pistons are movable relative to each other and the shell is movable relative to the pistons. The impregnated starting materials are digested at a relatively low hydromodulus of 0.5 to 2 with a direct action of heat on the impregnated starting materials in the compacting apparatus at a digesting temperature of 160.degree. to 300.degree. C. The digesting times are short and depend on the digesting temperature.

Abstract: The soil-redeposition effect of detergent compositions of the usual type, containing an active detergent material and a ternary mixture of sodium carboxymethyl cellulose, a linear polycarboxylate and a cellulose ether can be further improved by using as the cellulose ether a particular type of alkyl celluloses, namely those having a C.sub.1 -C.sub.3 alkyl group, a DS of at least 0.5, a DP of not more than 300, and further being free of other substituents.

Abstract: A particulate detergent composition for fabric conditioning includes, in addition to a detergency active material, from 10-40% of a mixture of tripolyphosphate and orthophosphate in the ratio of 20:1 to 3:1 together with 2-25% of a mixture of soap and an anionic polyelectrolyte in the ratio of 10:1 to 1:1. Any pyrophosphate present must be kept below 5%. The soap and polyelectrolyte result in reduced deposition of inorganic materials onto the fabrics. The preferred polyelectrolyte is sodium polyacrylate with a molecular weight of about 27,000. The composition may also include conventional additional ingredients.