摘要:
Cobalt is reversibly extracted from cobalt bearing aqueous solutions using solvent extraction techniques by contacting the aqueous solution with a hydrocarbon solvent containing a N-alkylalkanohydroxamic acid having at least about 8 carbon atoms. A new class of cobalt complexes is also provided.
摘要:
The present invention includes formulations and methods to reduce Cr(VI) contamination, in which the formulation comprises (1) a reactive reducing agent comprising at least one reducing chemical capable of reducing Cr(VI) to Cr(III); and (b) one or more solvents. Moreover, the present invention includes formulations to reduce Cr(VI) within the coating, and Cr(VI) reducing kits with at least one color reference tool for evaluating the process and/or completion of the Cr(VI) reduction.
摘要:
The present invention is directed to a photolytic artificial lung. The photolytic artificial lung converts water to oxygen for blood absorption, regulates pH, the removes carbon dioxide, and co-produces electrical power is disclosed. The photolytic artificial lung includes a photolytic cell where all of the chemical reactions occur. The photolytic cell disclosed herein can also be used to direct chemical reactions in organs other than the lung. Also disclosed herein is a gas sorption device for removing carbon dioxide from the system by chemical sorption.
摘要:
Apparatus and methods for removing carbon dioxide from whole blood. Hydrogen ions are generated from water in the blood, resulting in the formation and release of carbon dioxide from the blood.
摘要:
Apparatus and methods for removing carbon dioxide from whole blood. Hydrogen ions are generated from water in the blood, resulting in the formation and release of carbon dioxide from the blood.
摘要:
In a method of separating carbon dioxide from a gas mixture, a liquid solvent flows down an array of vertical wires with the gas mixture flowing over the liquid. Once on the wire, the liquid quickly breaks up into drops of varying sizes, with each size moving down the wire at a different velocity. Large, faster moving drops overtake the small, slower moving drops to form even larger drops. As the drops fall, new drops are created behind the falling drops. Consequently, drops of a large range of sizes are forming, colliding, and mixing as they travel down the wire. During this process, gas molecules that have adsorbed onto the liquid surface are mixed into the interior of the solvent, resulting in highly effective mass transfer and gas absorption. This enhanced mass transfer allows greater flexibility in the choice of solvent and in the system design.
摘要:
The invention provides a device useful for measuring water temperature at a certain depth. The device includes a temperature sensing part embedded in an insulating matrix part which provides a useful heat flow pattern. After being exposed to water of a certain temperature the temperature sensing part wil thermally equilibrate to that temperature after a period of time. The device will then hold this temperature reading even while being briefly exposed to mediums of different temperatures, such as exposing the device to air or water of varying temperature, and will allow accurate readings of the original temperature. The device appears to exploit the difference in thermal conductivities of air versus other media, such as water or slurries.
摘要:
Nickel and cobalt are reversibly extracted from nickel and cobalt bearing aqueous solutions using solvent extraction techniques by contacting the aqueous solution with a hydrocarbon solvent containing a N-alkylalkanohydroxamic acid having at least about 8 carbon atoms.
摘要:
Gallium is extracted in the presence of other metals from gallium bearing aqueous solutions, by contact with organic solvent containing N-organo hydroxamic acids, particularly at described acid and alkaline pH ranges; and recovered from the organic solvent. New gallium complexes and certain N-organo hydroxamic acids are also provided.