摘要:
Hydrogen containing chlorosilanes, preferably trichlorosilanes, are prepared by reacting silicon tetrachloride with hydrogen at a temperature of 600.degree.-1200.degree. C. with a SiCl.sub.4 /H.sub.2 mixture having a molar composition between 1:1 and 1:50 in equilibrium with SiHCl.sub.3 and HCl and suddenly quenching the mixture to below 300.degree. C.
摘要翻译:通过使四氯化硅与氢气在600-1200℃下与SiCl 4 / H 2混合物与摩尔组成为1:1至1:50的SiCl 4和H 2混合物与SiHCl 3和HCl平衡来制备含氢氯硅烷,优选三氯硅烷 并将混合物突然熄灭至300℃以下。
摘要:
Malononitrile is prepared by the short time high temperature reaction of gaseous acetonitrile and cyanogen chloride in the molar ratio of acetonitrile to cyanogen halide of above 1 characterized in that the well mixed reaction components are reacted at an average temperature below 800.degree. C. and the reaction is quenched to condense acetonitrile and malononitrile by introducing a cooling medium into the reaction system.
摘要:
1,1'-PEROXYDICYCLOHEXYLAMINE IS PREPARED FROM CYCLOHEXANONE, HYDROGEN PEROXIDE AND AMMONIA IN THE ABSENCE OF CATALYST AND UNDER ANHYDROUS FORM. The ammonia is in gaseous or liquid form.
摘要:
A gear actuator for engaging and disengaging gears in an automatic manual transmission has a single working piston or two working pistons provided with a first working piston surface and a second working piston surface. An auxiliary piston is provided also. A pressure control valve controls a pressure supplied to the second working piston surface. A shut-off valve is provided. The first working piston surface and the pressure valve are supplied with a system pressure of a hydraulic system. The first working piston surface and the pressure control valve can be decoupled from the system pressure of the hydraulic system by the shut-off valve.
摘要:
Lithium phosphate catalysts for the rearrangement of alkene oxides to the corresponding alkenols are prepared as overcoats on inert carriers. The catalysts are prepared for example by overcoating the inert carrier with the lithium phosphate in the presence of moisture.
WHEREIN X IS HALOGEN, N3, LOWER ALKOXY OR LOWER ALKYLMERCAPTO; R1 AND R2 ARE THE SAME OR DIFFERENT AND ARE HYDROGEN, LOWER STRAIGHT-CHAIN OR BRANCHED ALKYL, LOWER STRAIGHTCHAIN OR BRANCHED AKLENYL, LOWER STRAIGHT-CHAIN OR BRANCHED SUBSTITUTED ALKYL OR LOWER STRAIGHT-CHAIN OR BRANCHED SUBSTITUTED ALKENYL; R3 AND R4 ARE THE SAME OR DIFFERENT AND ARE STRAIGHTCHAIN OR BRANCHED ALKYL OR ALKENYL HAVING FROM 1 TO 8 CARBON ATOMS OR ARE ARALKYL AND WHEREIN R3 AND R4 MAY ALSO BE INTERCONNECTED TO FORM A 5 TO 7 MEMBER RING AND WHEREIN EITHER R3 OR R4 MAY ALSO BE HYDROGEN; AND R5 AND R6 ARE THE SAME OR DIFFERENT AND ARE LOWER ALKYL OR HYDROGEN. THE COMPOUNDS OF THE REACTION ARE STRONG HERBICIDES OF A HIGHLY SELECTIVE NATURE. THE INVENTION ALSO COMPRISES A PROCESS OF MAKING THE COMPOUNDS WHEREIN A CYANURIC CHLORIDE IS REACTED WITH A,A-DISUBSTITUTED-AMINOACETIC ACID-THIOAMIDE IN THE MEDIUM OF AN INERT ORGANIC SOLVENT FOLLOWED BY RECOVERY OF THE FORMED PRECIPITATE.
摘要:
A method for determining the starting capability of an internal combustion engine of a motor vehicle, which can be started by an electric motor powered by a battery, including detecting first battery parameter values during a successful starting sequence of the internal combustion engine at a first time, detecting second battery parameter values at a second time following the first time, determining at the second time the expected battery voltage for a starting sequence of the internal combustion engine taking place at a third time based on the detected first and second battery parameter values, and comparing the battery voltage expected at the third time with a predetermined threshold value in order to derive therefrom the starting capability of the internal combustion engine.
摘要:
Cyanogen is prepared by passing hydrogen cyanide together with hydrogen peroxide into a solution of copper(II) bromide, chloride, cyanide, nitrate, or sulfate containing ferric ions that is maintained at a temperature between 0.degree. and 100.degree. C.
摘要:
Catalysts useful in the reaction of acrolein with ammonia to form pyridine and 3-methylpyridine are prepared by heating compounds of Al, F, and O and at least two elements of the second, fourth, fifth and sixth groups of the periodic system with oxygen at 550.degree. to 1200.degree.C.
摘要:
A method for determining the starting capability of an internal combustion engine of a motor vehicle, which can be started by an electric motor powered by a battery, including detecting first battery parameter values during a successful starting sequence of the internal combustion engine at a first time, detecting second battery parameter values at a second time following the first time, determining at the second time the expected battery voltage for a starting sequence of the internal combustion engine taking place at a third time based on of the detected first and second battery parameter values, and comparing the battery voltage expected at the third time with a predetermined threshold value in order to derive therefrom the starting capability of the internal combustion engine.