Abstract:
The invention concerns a method of reducing the water content of water-containing granular brown coal involving the application of heat energy and pressure to the material spread out in a bed. The brown coal is subjected to mechanically applied initial surface pressure at a level below the maximum surface pressure which occurs in the process, while thermal energy is imparted to the brown coal by steam, which heats the coal and condenses. The surface pressure is then raised without any further steam being supplied to a level (at least 2.0 MPa) at which the water held in the heated brown coal is forced out.
Abstract:
The invention concerns a method of reducing the water content of water-containing granular brown coal involving the application of heat energy and pressure to the material spread out in a bed. The brown coal is subjected to mechanically applied initial surface pressure at a level below the maximum surface pressure which occurs in the process, while thermal energy is imparted to the brown coal by steam, which heats the coal and condenses. The surface pressure is then raised without any further steam being supplied to a level (at least 2.0 MPa) at which the water held in the heated brown coal is forced out.
Abstract:
The invention relates to a telescopic guide (10) with a metal polygonal outer tube (12) and a ball bearing cage (18) with at least two rows of balls (16) which roll in three different corners of the outer tube (12). A metal inner tube (14) is guided by the balls (16) in the outer tube (12) and has in the peripheral regions thereof in which the balls (16) roll, a convex cross-section. The size of the balls (16) is such that when they roll in, they cause plastic deformation of the surface of the inner tube (14) and, consequently, produce guide grooves (24) in said inner tube (14).
Abstract:
The present invention relates to a microemulsion, comprising (A) 0.1 to 50 wt.% of at least one active agent as component A, (B) 0.5 to 40 wt.% of at least one solvent that can be completely mixed with water and selected from the group consisting of esters from acetic acid, lactic acid, benzoic acid, dicarboxylic acids, cyclic esters, cyclic amides, carbonates, sulfurous solvents, phosphates, ethers and mixtures thereof, as component B, (C) 10 to 40 wt.% of at least one non-ionic surfactant as component C, (D) 0 to 10 wt.% further additives as component D, (E) 10 to 90 wt.% water as component E, and (F) 0.1 to 60 wt.% of at least one solvent that can be partially mixed with water as component F, each in relation to the entire microemulsion, wherein the sum of the amounts of components, A, B, C, D, E, and F is 100 wt.%, and the microemulsion does not comprise any anionic surfactants. The invention further relates to a method for the production of said microemulsion and to the use of said microemulsion for treating plants.
Abstract:
The invention relates to a process for generating superheated steam (H) for operating a steam power station by burning lignite in a furnace (F) of a power station boiler (K) and extracting the flue gases, using their heat. Here, the flue gases generate process steam via a heat exchanger (PD, WA1, WA2) behind the power station boiler which is taken to a bed of lignite (MTE) subjected to a mechanically applied initial surface pressure, and the process steam heats the lignite as it condenses. Then, without any further supply of process steam the surface pressure is increased to at least 2.0 MPa that the water in the heated lignite is forced out, whereafter the lignite thus dewatered is taken to the power station boiler furnace.
Abstract:
The invention concerns a method of reducing the water content of water-containing granular brown coal involving the application of heat energy and pressure to the material spread out in a bed. The brown coal is subjected to mechanically applied initial surface pressure at a level below the maximum surface pressure which occurs in the process, while thermal energy is imparted to the brown coal by steam, which heats the coal and condenses. The surface pressure is then raised without any further steam being supplied to a level (at least 2.0 MPa) at which the water held in the heated brown coal is forced out.
Abstract:
Die vorliegende Erfindung betrifft eine Mikroemulsion, umfassend (A) 0,1 bis 50 Gew.-% wenigstens einen Wirkstoff als Komponente A, (B) 0,5 bis 40 Gew.-% wenigstens ein mit Wasser vollständig mischbares Lösungsmittel ausgewählt aus der Gruppe bestehend aus Estern der Essigsäure, der Milchsäure, der Benzoesäure, von Dicarbonsäuren, cyclischen Estern, cyclischen Amiden, Carbonaten, schwefelhaltigen Lösungsmitteln, Phosphaten, Ethern und Mischungen davon, als Komponente B, (C) 10 bis 40 Gew.-% wenigstens ein nichtionisches Tensid als Komponente C, (D) 0 bis 10 Gew.-% weitere Additive als Komponente D, (E) 10 bis 90 Gew.-% Wasser als Komponente E und (F) 0,1 bis 60 Gew.-% wenigstens ein teilweise mit Wasser mischbares Lösungsmittel als Komponente F, jeweils bezogen auf die gesamte Mikroemulsion, wobei die Summe der Mengen der Komponenten A, B, C, D, E und F 100 Gew.-% beträgt, und die Mikroemulsion keine anionischen Tenside enthält, sowie ein Verfahren zur Herstellung dieser Mikroemulsion und die Verwendung dieser Mikroemulsion zur Behandlung von Pflanzen.
Abstract:
The present invention relates to a formulation comprising (a) at least one pesticide; and (b) at least one non-ionic surfactant of formula (I): R 1 -O-(AO) x -(H); wherein R 1 represents straight-chain or branched alkyl having 4 to 20 carbon atoms; AO is ethyleneoxy, propyleneoxy or a mixture of ethyleneoxy and propyleneoxy; and x correspond to values from 2 to 30; and (c) at least one ionic tristyrylphenyl alkoylate; and (d) at least one oil; and (e) water, wherein the pesticide is present in the aqueous phase in form of a suspension and the oil is essentially free of pesticide.
Abstract:
The present invention relates to a formulation comprising (a) at least one pesticide; and (b) at least one non-ionic surfactant of formula (I): R 1 -O-(AO) x -(H); wherein R 1 represents straight-chain or branched alkyl having 4 to 20 carbon atoms; AO is ethyleneoxy, propyleneoxy or a mixture of ethyleneoxy and propyleneoxy; and x correspond to values from 2 to 30; and (c) at least one ionic tristyrylphenyl alkoylate; and (d) at least one oil; and (e) water, wherein the pesticide is present in the aqueous phase in form of a suspension and the oil is essentially free of pesticide.
Abstract:
The invention relates to a process for reducing the water content of water-bearing granular lignite by the effect of thermal energy and pressure on the material laid in a flat bed. The lignite is exposed to a mechanically applied initial surface pressure lying below the maximum surface pressure occurring in the process and heat energy is applied to the lignite by water vapour (HD) which heats the lignite while condensing. Then, without any further supply of water vapour the surface pressure is increased to at least 2.0 MPa so that the water in the heated lignite is forced out. Before the water vapour (HD) is applied, the lignite is preheated by means of waste heat, the source of which is the hot water pressed out of the lignite during the process. In the process of the invention, the hot water (HW) is uniformly applied directly to the bed of lignite and pressed through the latter.