摘要:
Dimethylformamide mg.multidot.produced by reaction of monomethylamine and trimethylamine at a molar ratio of trimethylamine to monomethylamine of 0.1-10, with carbon monoxide in the presence of 1-500 mg. atom of at least one of iodine, bromine, iodides and bromides as a catalyst in term of halogen per one mole of raw material methylamines at a temperature of 100.degree.-350.degree. C. under a pressure of at least 50 kg/cm.sup.2 gage. Dimethylformamide is produced in a very high yield with a high selectivity from monomethylamine and trimethylamine having less demand among three species of methylamines formed from methanol and ammonia.
摘要:
Dimethyl formamide is produced in high yield with high selectivity by reaction of monomethyl formamide with trimethylamine and carbon monoxide in the presence of a catalyst such as halogen elements, halides, inorganic acids, solid acids and metal carbonyls at a temperature of 150.degree. to 300.degree. C under a pressure of 20 kg/cm.sup.2 gage or higher.
摘要:
The present invention relates to a catalyst which comprises a vanadium oxide, a chromium oxide, a molybdenum oxide and a boron oxide supported on a silica carrier. This catalyst is suitable for use in the production of aromatic nitriles from alkyl-substituted aromatic compound by the catalytic reaction of a gas mixture containing an alkyl-substituted aromatic compound, ammonia and oxygen or a gas containing molecular oxygen over a catalyst. The present invention further relates to a process for producing the aromatic nitriles using said catalyst.
摘要:
The present invention relates to a catalyst which comprises a vanadium oxide, a chromium oxide, a molybdenum oxide and a boron oxide supported on a silica carrier. This catalyst is suitable for use in the production of aromatic nitriles from alkyl-substituted aromatic compound by the catalytic reaction of a gas mixture containing an alkyl-substituted aromatic compound, ammonia and oxygen or a gas containing molecular oxygen over a catalyst. The present invention further relates to a process for producing the aromatic nitriles using said catalyst.
摘要:
Dimethyl formamide is produced in high yield with good selectivity by reaction of monomethylamine and trimethylamine, or together with dimethylamine, with carbon monoxide in the presence of metallic iron or an iron compound such as oxide, hydroxide, sulfide, inorganic acid salt, organic acid salt or carbonyl compound of iron.
摘要:
An electric power conversion device comprises a conversion circuit having bi-directionally switchable plural pairs of switching elements connected to respective phases and converting an inputted AC power into an AC electric power. A first switching time is calculated using detected voltages detected by voltage sensors and an output command value. A second switching time is calculated in a form of a time which is a subtraction of the first switching time from a half period of a carrier and, using this time, control signals to switch on and off of the switching elements are generated.
摘要:
An electric power conversion device comprises a conversion circuit having bi-directionally switchable plural pairs of switching elements connected to respective phases and converting an inputted AC power into an AC electric power. A first switching time is calculated using detected voltages detected by voltage sensors and an output command value. A second switching time is calculated using a carrier and the calculated first switching time. The second switching time is such that, in one period of the alternating current electric power outputted from the conversion circuit, the second switching time included in a first half period of the one period is equal to the second switching time included in a second half period of the one period.
摘要:
A power supply device is provided that includes a battery module (3) and a cooling mechanism. The battery module is composed of a plurality of batteries (20) arranged side by side. The cooling mechanism cools the batteries (20). A thermally-insulating member (70) is arranged on a part of a battery module surface, and thermally insulates heat generated from the batteries. This power supply device can reduce the temperature unevenness ΔT.
摘要:
A semiconductor device includes: a first output unit configured to output a first phase; a second output unit configured to output a second phase different from the first phase, the second output unit being disposed to be stacked on the first output unit; and a controller configured to control the output units.
摘要:
An insulating adhesive film and an anisotropically electroconductive adhesive film satisfying low-temperature curability, high adhesion and high reliability are provided. An anisotropically electroconductive adhesive film of the present invention is so configured that electroconductive particles 7 are dispersed in an insulating adhesive resin 6, comprising as main components: a radical polymerizable resin component having an unsaturated double bond; a resin component having no unsaturated double bond; a phosphoric acid-containing resin component; and a radical polymerization initiator.