Abstract:
Functionalized filter materials consist of carbons and ceramic substrates for special antimicrobial, phase transfer, and catalytic properties and the method of preparation thereof. The filters are coated with different types of inorganic and polymer impregnates for specific applications in air and water pollution control and catalysis. The substrates are activated by special processes and the impregnates may be reacted with certain redox systems to help increase their efficacy.
Abstract:
Described herein is a filtration medium comprising a substrate, wherein the substrate comprises a thermolysis product of (i) a carbon substrate having a surface of COxEy, wherein E is selected from at least one of S, Se, and Te; and wherein x and y are greater than 0; and (ii) a metal salt; and methods of removing chloramine from aqueous solutions.
Abstract:
The present invention provides an oxygen absorbing agent composition comprising a compound (A) having two or more tetralin rings, and a transition metal catalyst.
Abstract:
Methods of sorption of various materials from an environment are disclosed herein. Embodiments of the materials include radioactive elements chlorates, perchlorates, organohalogens, and combinations thereof. Other embodiments pertain to methods of sorption of cationic radionuclides. Compositions produced by such methods are also disclosed herein. Embodiments of the methods may include contacting graphene oxides with the environment and sorption of the materials to the graphene oxides. In some embodiments, the sorption is relatively rapid in comparison to known sorbents; even in the presence of relatively higher concentrations of complexing agents. In some embodiments, the methods further include separating the graphene oxides that sorbed materials from the environment. Yet other embodiments may include desorbing the materials from the graphene oxides that sorbed the materials, and compositions therefrom.
Abstract:
The present invention provides an oxygen absorbing agent composition comprising a compound (A) having two or more tetralin rings, and a transition metal catalyst.
Abstract:
A compacted block of material constructed of one or more units consisting of matter comprising an ammonia-saturated material capable of reversibly desorbing and ad- or absorbing ammonia surrounded by a gas-permeable enclosure made of a flexible material having a thermal conductivity of at least about five times the thermal conductivity of said ammonia-saturated material at −70° C. to 250° C. and methods for producing the same are described.
Abstract:
A novel method for making a CO2 capture agent is provided. The capture agent is made of a calcium/iron salt. The capture agent is prevented from degradation at high temperature. The capture agent is fit to be used at various temperatures in high CO2 densities for achieving high CO2 capture capacity, environmental protection and low power consumption.
Abstract:
Disclosed is a self-supporting solid compacted composition of material comprising an ammonia storage material capable of reversibly absorbing and desorbing ammonia in its ammonia saturated state and compacted to such a density that it has of at least 70% of the single crystal density of said material in its ammonia-saturated state in admixture with one or more additive incapable of storing ammonia and having a thermal conductivity of at least five times the thermal conductivity of the ammonia storage material at a temperature of from at least −45° C. to 250° C., as well as a process for preparing it.
Abstract:
A compacted block of material constructed of one or more units consisting of matter comprising an ammonia-saturated material capable of reversibly desorbing and ad- or absorbing ammonia surrounded by a gas-permeable enclosure made of a flexible material having a thermal conductivity of at least about five times the thermal conductivity of said ammonia-saturated material at −70° C.. to 250° C.. and methods for producing the same are described.
Abstract:
To provide a method for purifying tetrafluoroethylene by removing, from tetrafluoroethylene containing a polymerization inhibitor, the polymerization inhibitor by adsorption.A method of bringing tetrafluoroethylene containing a polymerization inhibitor into contact with a silica gel containing a metal salt in an amount of from 250 to 100,000 mass ppm as calculated as metal atoms to remove the polymerization inhibitor by adsorption, and the metal salt is preferably a salt of a metal of Group 3 to 13 of the Periodic Table, more preferably a salt of a metal of Group 8 to 10 of the Periodic Table. For example, as the metal salt, a salt of at least one metal selected from the group consisting of iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum may be used.