摘要:
An improved process for preparing organic isocyanates is disclosed. An organic amine is reacted with phosgene to yield a reaction product, through which hydrogen chloride gas is passed in the presence of an inert organic solvent whereby the gas included in the reaction product is removed and the acid substances and hydrolyzable chlorine-containing substances included therein are minimized.
摘要:
In the production of anhydrous sodium dithionite by reacting sodium formate, an alkaline sodium compound and sulfurous acid anhydride in hydrous methanol, a process for treating the mother liquor, which comprises adding an alkali to the mother liquor left after the separation of the resulting anhydrous sodium dithionite to adjust its pH to at least 8, separating the solids precipitated, and oxidizing the filtrate with an oxidizing agent.
摘要:
A prismatic sealed secondary cell that is excellent in current collection efficiency and current collection stability, and capable of high output discharge. In the prismatic sealed secondary cell a laminate-type or a wound laminate-type flat electrode assembly is housed in a prismatic cell case, a pair of current collector plates are disposed on a flat portion of the outermost surface of the core exposed portion of the first electrode plate constituting the flat electrode assembly so that the pair of current collector plates sandwich the flat portion in the thickness direction, and a columnar connection conductive member is interposed between two-divided core exposed portion laminates in the flat portion sandwiched between the pair of current collector plates, and the pair of current collector plates, the columnar connection conductive member and the two-divided core exposed portion laminates are welded to each other.
摘要:
In a sealed battery, a metal current carrying block 24A having a protrusion 24b on each of the two opposing faces is placed between positive or negative electrode substrate exposed portions that are divided into two so as to bring the protrusion 24b on each of the two opposing faces into contact with the positive or negative electrode substrate exposed portions that are stacked, a pair of electrodes 31 and 32 for resistance welding are brought into contact with positive electrode collector members 16 or negative electrode collector members that are each placed on the outermost surfaces of the positive electrode substrate exposed portions 14 or negative electrode substrate exposed portions, and resistance welding is performed with pressure applied between the pair of electrodes 31 and 32 for resistance welding.
摘要:
The present invention provides a prismatic sealed secondary cell that is excellent in current collection efficiency and current collection stability, and capable of high output discharge.In the prismatic sealed secondary cell in which a laminate-type or a wound laminate-type of flat electrode assembly is housed in a prismatic cell case, a pair of current collector plates are disposed on a flat portion of the outermost surface of the core exposed portion 5b of the first electrode plate constituting the flat electrode assembly so that the pair of current collector plates sandwich the flat portion in the thickness direction, and a columnar connection conductive member is interposed between two-divided core exposed portion laminates in the flat portion sandwiched between the pair of current collector plates, and the pair of current collector plates, the columnar connection conductive member and the two-divided core exposed portion laminates are welded to each other.
摘要:
In a sealed battery, a metal current carrying block 24A having a protrusion 24b on each of the two opposing faces is placed between positive or negative electrode substrate exposed portions that are divided into two so as to bring the protrusion 24b on each of the two opposing faces into contact with the positive or negative electrode substrate exposed portions that are stacked, a pair of electrodes 31 and 32 for resistance welding are brought into contact with positive electrode collector members 16 or negative electrode collector members that are each placed on the outermost surfaces of the positive electrode substrate exposed portions 14 or negative electrode substrate exposed portions, and resistance welding is performed with pressure applied between the pair of electrodes 31 and 32 for resistance welding.
摘要:
An ink-jet recording apparatus capable of efficiently performing a pressurization recovery operation on a recording head without causing clogging due to dust particles. An ink supply system for supplying ink to the head includes an ink container with an air space defined above the ink surface, and a pump for pressurizing air within the air space, which pump is arranged to connect the air space with either the pressure side of the pump or the atmosphere. In one embodiment, the ink container compriss a main ink tank, and an auxiliary ink tank, having the air space, provided between the head and the main ink tank. The main ink tank is controlled to maintain a predetermined pressure head of ink therein, and the auxiliary ink tank is positioned such that the auxiliary ink tank can have, under atmospheric pressure, substantially the same pressure head as the main ink tank. In another embodiment, a removable ink cartridge, serving as the ink container, is divided into small and large ink chambers. Thus, in either case the pump need only pressurize a small volume of air in the ink container so that, during a recovery operation, the air pressurized by the pump efficiently pressurizes the ink within the auxiliary ink tank or small ink chamber even when the amount of ink has decreased.
摘要:
A process for continuously producing anhydrous sodium dithionite in the form of large granules which comprises reacting formic acid, sodium formate, sodium hydroxide and sulfurous acid anhydride in hydrous methanol using a multi-stage reaction apparatus, wherein all the required amounts of the formic acid or sodium formate, sodium hydroxide, methanol and water, and at least 60%, based on the required amount, of sulfurous acid anhydride are introduced into a first reactor, and the residence time in the first reactor is adjusted so that the conversion of the sulfurous acid anhydride to anhydrous sodium dithionite is within the range of 25 to 50%; the remainder of the sulfurous acid anhydride is introduced into a second reactor; and the reaction temperature in any given reactor is maintained at a point not lower than the reaction temperature in the immediately preceding reactor.
摘要:
Aimed at providing a portable electronic appliance and a data processor capable of preventing stealing of electricity, a mobile phone terminal, which is a portable electronic appliance of the present invention supplied with electric power from the specific commercial power source, is brought into functional interruption by a data processor, the data processor executes account settlement of supplied power while keeping the mobile phone terminal in functional interruption, and upon completion of the account settlement, the data processor unlocks the functional interruption of the mobile phone terminal, so that an authorized contractor of the commercial power source is prevented from being unreasonably charged with power rate charged up in the mobile phone terminal, and stealing of electricity by the user of the mobile phone terminal may be avoidable.
摘要:
An ink jet recording apparatus which has at least one ink jet recording head to perform recording on a recording medium held on a rotary drum by discharging liquid ink from discharging nozzles, comprises a receptor, arranged on the rotary drum at a position which does not overlap with a position at which a recording medium is placed, for receiving ink droplets discharged by the ink jet recording head not for recording.