Abstract: An oil separation device includes an oil separator in a housing between a gas inlet and an outlet. An opening is formed at the longitudinal end of a gas-conducting channel connected to the gas inlet the end facing away from the gas inlet, and a throttle aperture movably mounted in the longitudinal direction of the gas conducting channel. The gas conducting channel and an outlet channel form an annular gap through which crankcase ventilation gases flow via a nozzle gap, and the housing has an additional opening to which a reference pressure can be applied on the throttle aperture side facing away from the gas conducting channel. The throttle aperture extends radially beyond the annular gap and has a seal region molded onto the edge that is sealingly arranged in a recess formed in the housing such that the throttle aperture fluidically separates the additional opening from the gas inlet.

Abstract: An oil separation device includes an oil separator in a housing between a gas inlet and an outlet. An opening is formed at the longitudinal end of a gas-conducting channel connected to the gas inlet the end facing away from the gas inlet, and a throttle aperture movably mounted in the longitudinal direction of the gas conducting channel. The gas conducting channel and an outlet channel form an annular gap through which crankcase ventilation gases flow via a nozzle gap, and the housing has an additional opening to which a reference pressure can be applied on the throttle aperture side facing away from the gas conducting channel. The throttle aperture extends radially beyond the annular gap and has a seal region molded onto the edge that is sealingly arranged in a recess formed in the housing such that the throttle aperture fluidically separates the additional opening from the gas inlet.

Abstract: The invention relates to a process for preparing trialkylmetal compounds of the general formula R3M (where M=metal of group IIIA of the Periodic Table of the Elements (PTE), preferably gallium or indium, and R=C1-C5-alkyl, preferably methyl or ethyl). The process is based on the reaction of metal trichloride (MeCl3) with alkylaluminium sesquichloride (R3Al2Cl3) in the presence of at least one alkali metal halide as auxiliary base. The reaction mixture is heated to a temperature above 120° C. and the trialkylmetal compound is separated off from the reaction mixture via a separator, with partially alkylated products being at the same time recirculated to the reaction mixture. In a further step, the reaction mixture is heated to a maximum of 350° C. and the remaining alkylated and partially alkylated products are separated off. The products obtained in this way can optionally be recycled in the process.

Abstract: The invention relates to a process for preparing trialkylgallium compounds of the general formula R3Ga. The process is based on the reaction of gallium trichloride (GaCh), optionally in a mixture with partially alkylated products, with an alkylaluminium compound of the type RaAICIb (where R?C1-C5-alkyl, a=1, 2 or 3, b=0, 1 or 2 and a+b=3) in the presence of at least two alkali metal halides (e.g. NaCI and KCI) as auxiliary base. Preference is given to using alkylaluminium sesquichloride (R3AI2CI3) or trialkylaluminium (R3AI). The reaction mixture is heated to a temperature in the range from 120° C. to 250° C. and the trialkylgallium compound formed is separated off via a separator which is operated at a temperature which is more than 30° C. below the boiling point of the most volatile partially alkylated product. Complete alkylation is achieved here and partially alkylated products are recirculated to the reaction mixture. In a further step, the reaction mixture can be heated to a maximum of 350° C.

Abstract: The invention relates to a process for preparing trialkylmetal compounds of the general formula R3M (where M=metal of group IIIA of the Periodic Table of the Elements (PTE), preferably gallium or indium, and R?C1-C5-alkyl, preferably methyl or ethyl). The process is based on the reaction of metal trichloride (MeCl3) with alkylaluminium sesquichloride (R3Al2Cl3) in the presence of at least one alkali metal halide as auxiliary base. The reaction mixture is heated to a temperature above 120° C. and the trialkylmetal compound is separated off from the reaction mixture via a separator, with partially alkylated products being at the same time recirculated to the reaction mixture. In a further step, the reaction mixture is heated to a maximum of 350° C. and the remaining alkylated and partially alkylated products are separated off. The products obtained in this way can optionally be recycled in the process.

Abstract: The invention relates to a process for preparing trialkylgallium compounds of the general formula R3Ga. The process is based on the reaction of gallium trichloride (GaCh), optionally in a mixture with partially alkylated products, with an alkylaluminium compound of the type RaAlClb (where R?C1-C5-alkyl, a=1, 2 or 3, b=0, 1 or 2 and a+b=3) in the presence of at least two alkali metal halides (e.g. NaCl and KCl) as auxiliary base. Preference is given to using alkylaluminium sesquichloride (R3Al2Cl3) or trialkylaluminium (R3Al). The reaction mixture is heated to a temperature in the range from 120° C. to 250° C. and the trialkylgallium compound formed is separated off via a separator which is operated at a temperature which is more than 30° C. below the boiling point of the most volatile partially alkylated product. Complete alkylation is achieved here and partially alkylated products are recirculated to the reaction mixture. In a further step, the reaction mixture can be heated to a maximum of 350° C.

Abstract: The invention relates to a device for separating liquids from gases, especially for separating oil particles from blow-by gases of the crankcase ventilation of internal combustion engines. Proceeding from the drawbacks of the known prior art, a device is to be provided that is characterized by a simple, cost-effective and space-saving construction and with which a high separation performance can be achieved. As a solution, it is proposed that the individual flow tubes 2 have at least one tangentially arranged gas inlet 3 at their end facing towards the direction of gas inlet and are closed at the front side 2a adjacent thereto by means of a cover 5, wherein a combined rotational and axial flow with a vortex component is generated in the flow tubes 2, wherein the rotational flow in the individual tubes 2 repeatedly rotates by 360°. The individual flow tubes 2 are part of a base support that has a circumferential edge 1a.

Abstract: The invention relates to a device for separating liquids from gases, especially for separating oil particles from blow-by gases of the crankcase ventilation of internal combustion engines. Proceeding from the drawbacks of the known prior art, a device is to be provided that is characterized by a simple, cost-effective and space-saving construction and with which a high separation performance can be achieved. As a solution, it is proposed that the individual flow tubes 2 have at least one tangentially arranged gas inlet 3 at their end facing towards the direction of gas inlet and are closed at the front side 2a adjacent thereto by means of a cover 5, wherein a combined rotational and axial flow with a vortex component is generated in the flow tubes 2, wherein the rotational flow in the individual tubes 2 repeatedly rotates by 360°. The individual flow tubes 2 are part of a base support that has a circumferential edge 1a.