摘要:
In a process for injecting a radioactive sample of a substance into a reaction vessel, the sample is first enclosed in a first container in which it is irradiated, and then the first container with sample is placed in a second container which is separated from the reaction vessel by way of a closed valve. The second container is heated, and the sample is then conveyed out of the containers into the reaction vessel through the valve which is opened. The sample is enclosed within the first container by plugs or is frozen therein for which purpose the first container may possibly by put into intermediate storage in a storage container. An apparatus comprises the first container for receiving the sample, to be arranged and fixed within the second heatable pressure-resistant container which can be communicated with the reaction vessel through a valve.
摘要:
The present invention provides a medicinal feed for fish, which comprises a triphenylmethane derivative or a combination of triphenylmethane derivatives alone or in combination with at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
摘要:
A method of clarifying bodies of water and eliminating algal bloom caused by planktonic algae in water harboring biological systems is described using a novel flocculating agent prepared in an aqueous solution containing a combination of a monomeric or polymeric aluminum salt and a polybasic carboxylic acid; the method results in complete clarification of the body of water without harming fish that may be present; a preferred flocculating agent described includes a combination of polymeric aluminum hydroxy-chloride and L-(+)-tartaric acid.
摘要:
A method of dissolving either a precipitate or deposit that contains essentially calcium carbonate comprising contacting the precipitate or deposit with a mixture comprising a first acid, the first acid being a Lewis acid in a concentration of 10 to 1000 mmoles/l, and a second acid, the second acid being a medium-strength to weak protonic acid or a partly deprotonated acid that yields at least one proton with the molar ratio of the second acid to the Lewis acid being between 1:1 and 6:1, the Lewis acid being a solution of at least one salt of a strong acid with cations selected from the group consisting of cations of a 3-valence main-group element, cations of a 3-valence transition element, cations of a 3-valence lanthanide, cations of a 3-valence actinide, cations of a 4-valence main-group element, cations of a 4-valence transition element, cations of a 4-valence lanthanide and cations of a 4-valence actinide.
摘要:
The present invention provides a medicinal feed for fish, which comprises a triphenylmethane derivative or a combination of triphenylmethane derivatives alone or in combination with at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
摘要:
In a process for the treatment of at least one mixture of solid and liquid waste substances which contains at least one metal such as Fe and/or compounds thereof, for example oxides, the mixture occurring in a condition in which it can be used at least only with difficulty, the mixture is at least extensively homogenized and mixed with at least one very fine-grain dry substance containing fly ash and/or coke. The resulting mixture is of such a nature, for example being at least predominantly in the form of agglomerates, that it can be fed to a thermal procedure, possibly after a grading operation.
摘要:
For the removal of SO.sub.x and NO.sub.x from effluent gas, the gas, before being passed through a Selective Catalytic Reduction catalyst bed for reduction of at least a part of the nitrogen oxides in the gas, is subjected to at least substantially complete desulfurization in a coke bed. The desulfurized and denoxed gas can also be passed through a coke bed in which the ammonia which has not reacted in the SCR-catalyst bed is removed from the gas.
摘要:
The present invention provides a medicinal feed for fish, which comprises at least one compound selected from the group consisting of thionine, nitrothiazole, nitrofuran, quinoline and acridine derivatives, compounds splitting off aldehydes, transition metal derivatives, metal colloids, hexamethylenetetramine and/or quaternary ammonium salts as active materials.
摘要:
The invention relates to a swash plate swivel bearing for a hydraulic axial piston machine, in which roller-bearing segments are arranged between the hollow cylindrical bearing surface for the swash plate in the housing and the cylindrical bearing surface on the swash plate, which segments are held in curved cages with each of which is associated a tracker having a tracking mechanism guided by a guide member in a first guide, which mechanism is in drive connection with a carrier of the cage. It is the object of the invention to design a swash plate swivel bearing of the construction indicated above so that the guide member can cooperate directly with the carrier of the cage. This is achieved by forming the first guide (23) by two guides grooves (24, 25) that are opposed and, in particular, symmetrically inclined towards the direction of movement (29), the guide grooves crossing one another and being arranged on opposed and substantially parallel surfaces (26,27) on the housing side and on the swash plate side, the guide member (21) being guided in the guide grooves (24,25) always at their point of intersection (31).
摘要:
A probe tube which is introduced into a reaction container for measuring the operating condition of a medium in the interior of the container has a first seal which is resistant to temperature and a second seal which is resistant to pressure and gas-tight. Those seal respectively close the inner and outer ends of the probe tube. The interior of the probe tube communications with the interior of the reaction container by way of an opening, whereby the temperature-resistant seal at the tip of the probe tube is relieved of the loading of pressure forces.