摘要:
Carbon dioxide is separated from flue gas by scrubbing the gas with an aqueous solution of ammonia and salt, and the CO2 is therefore released from the solution by heating.
摘要:
A means is provided for the transmission of electric power that makes use of a coaxial cable and a special transformer for converting three-phase alternating current to single-phase current. The geometry of the transformer comprises a toroidal core with a chord passing through the axis. The primary is wound about the torus and the secondary about the chord.
摘要:
A process is disclosed for the manufacture of cottage cheese from milk using citric acid to precipitate the curd. The citric acid is supplied by fermentation of the lactose contained in the byproduct whey.
摘要:
Fuel pellets for use as targets in thermonuclear fusion by inertial confinement are manufactured from a solid palladium core that contains deuterium tritium gases. The palladium core is covered with a tamper-ablator shell of heavy metal selected from the group including gold, platinum, and tungsten.
摘要:
The present system and method for prioritizing email and controlling spam provides capability to determine the priority of emails received by an addressee. Such emails are designed to alert an addressee of its priority by the number of times the characters of the email address of the addressee are repeated. The present system and method include a coder/decoder that repeats the characters of an addressee's email address to reflect the priority of the email address assigned by the sender prior to sending the email over a network. The coder/decoder is embodied in software or instructions that are run on an email client or email server that count the number of times these characters are repeated. The greater number of repetitions, the greater the priority of the email.
摘要:
A rechargeable battery is provided with a positive electrode of tin, a negative electrode of zinc and an alkaline electrolyte. Upon charging, some tin is converted to stannic oxide, and zinc oxide is reduced to zinc. When the battery is discharged, stannic oxide is reduced to stannous oxide and zinc is oxidized to zinc oxide.
摘要:
A process is provided for the manufacture of formaldehyde from methyl bromide. In the process, methyl bromide is oxidized with air over a catalyst to give formaldehyde and hydrogen bromide. In a preferred embodiment of the invention, a mixture of two different catalysts are employed, one to promote hydrolysis of methyl bromide to methyl alcohol and the other to promote the oxidation of methyl alcohol to formaldehyde.
摘要:
An integrated process of preparing a C2-5 alkenyl-substituted aromatic compound using a C6-12 aromatic compound and a C2-5 alkane as raw materials. The process involves two reaction steps operating in tandem, the first reaction step reacts the C6-12 aromatic compound with hydrogen chloride and molecular oxygen in the presence of a catalyst to yield water and mono-, di-, tri-, and higher chlorinated aromatic adducts. The chlorinated compounds from the first reaction step are reacted with ethane in the second reaction step to produce alkane-substituted aromatic compounds which spontaneously dehydrogenate to an alkenyl-substituted aromatic compound and hydrogen chloride. After separating the alkenyl-substituted aromatic product from the hydrogen chloride, the hydrogen chloride is recycled to the first reaction step so that there is no net production or consumption of hydrogen chloride.
摘要:
A process is provided for the production of formaldehyde from methyl chloride. In the process methyl chloride is oxidized with air over a catalyst to give formaldehyde and hydrogen chloride. In a preferred embodiment of the invention, a mixture of two different catalysts is used, one catalyst to promote the hydrolysis of methyl chloride to methyl alcohol, and the other catalyst to oxidize the methyl alcohol so formed to formaldehyde. The reaction kinetics can be regulated by adjusting the proportion of the two catalysts in the mixture. In this manner, the release of heat from the reaction can be controlled and excessive temperatures in the catalyst mixture can be avoided.