Patent classifications
C01P2002/86
Method and apparatus for continuous removal of carbon dioxide
The present invention relates to a method for continuous removal of carbon dioxide, the method comprising the steps of: a) preparing an aqueous solution containing an amine-based compound and an acidic calcium compound; b) bringing a gas containing carbon dioxide to be treated into contact with the aqueous solution to prepare a calcium carbonate precipitate; and c) recovering the calcium carbonate and then adding a basic calcium compound to the residual aqueous solution, wherein after step c), step b) and step c) are repeatedly performed. The removal of carbon dioxide by the method of the present invention has advantages of requiring low energy and being capable of mineralizing and removing carbon dioxide at a fast rate without a separate time for induction.
RHO-TYPE ZEOLITE, PRECURSORS THEREOF, METHODS FOR MAKING THE SAME AND USE OF THE ZEOLITE AS SORBENT FOR CO2
The present disclosure relates to an RHO-type zeolite comprising caesium and M.sup.1 .sub.wherein M.sup.1 is selected from Na and/or Li remarkable in that it has a Si/Al molar ratio comprised between 1.2 and 3.0 as determined by .sup.29Si magic angle spinning nuclear magnetic resonance, in that the RHO-type zeolite has a specific surface area comprised between 40 m.sup.2g.sup.−1 and 250 m.sup.2g.sup.−1 as determined by N.sub.2 adsorption measurements, in that the RHO-type zeolite being in the form of one or more nanoparticles with an average crystal size comprised between 10 nm and 400 nm as determined by scanning electron microscopy wherein said nanoparticles form monodispersed nanocrystals or form aggregates of nanocrystals having an average size ranging from 100 nm to 500 nm, as determined by scanning electron microscopy. Amorphous precursors, devoid of an organic structure-directing agent, as well as a method for preparation of these amorphous precursors in the absence of such organic structure-directing agent and method for preparation of the RHO-type zeolites, are alos described. Finally, the use of the RHO-type zeolite as a sorbent for carbon dioxide is also demonstrated.
WET-CHEMICALLY PREPARED POLYMERIC LITHIUM PHOSPHORUS OXYNI-TRIDE (LIPON), METHOD FOR THE PREPARATION THEREOF, USES THEREOF, AND BATTERY
A polymeric lithium phosphorus oxynitride (LiPON) battery can be prepared by reacting a polymetaphosphonic acid with an organolithium compound to provide a reaction product of LiPON and including the reaction product in the LiPON battery. The LiPON is soluble in solvents selected from the group consisting of dimethyl sulfoxide (DMSO), tetrahydrofuran (THF), toluene and N-methylpyrrolidone (NMP).
CHABAZITE-TYPE ZEOLITE, PRECURSORS THEREOF, METHODS FOR MAKING THE SAME AND USE OF THE ZEOLITE AS SORBENT FOR CO2
The present disclosure relates to a chabazite-type zeolite, comprising at least two cages composed of 4- and 8-membered rings connected by one 6-membered double ring, remarkable in that it has a Si/Al molar ratio comprised between 1 and 15, in that it comprises caesium and potassium with a Cs/K molar ratio of at most 5.0 and in that it forms nanoparticles with an average crystal size comprised between 5 nm and 250 nm and with a specific surface area comprised between 50 m.sup.2g.sup.−1 and 200 m.sup.2g.sup.−1. Amorphous precursors, devoid of an organic structure-directing agent, as well as a method for preparation of these amorphous precursors in the absence of such organic structure-directing agent and method for preparation of the chabazite-type zeolite, are also described. Finally, the use of the chabazite-type zeolite as a sorbent for carbon dioxide is also demonstrated.
Delaminated layered zeolite precursors and method of preparing same without sonication
Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.
Sulfide solid electrolyte
A sulfide solid electrolyte comprising lithium, phosphorus and sulfur, wherein the sulfide solid electrolyte has a diffraction peak A at 2θ=25.2±0.5 deg and a diffraction peak B at 29.7±0.5 deg in powder X-ray diffraction using CuKα rays, an area ratio of a peak derived from PS.sub.4.sup.3− glass to the total area of peaks derived from glass observed in solid .sup.31P-NMR measurement is 90% or more and 100% or less, and an area ratio of peaks derived from glass to the total area of all peaks at 60 to 120 ppm observed in solid .sup.31P-NMR measurement is 1% or more and 45% or less.
HIGH HEAT-RESISTANT GRAPHENE OXIDE, METHOD FOR MANUFACTURING CONDUCTIVE GRAPHENE FIBER BY USING SAME, AND CONDUCTIVE GRAPHENE FIBER MANUFACTURED THEREFROM
The present invention relates to a high heat-resistant graphene oxide, a method of manufacturing conductive graphene fiber from the same, and conductive graphene fiber manufactured by the method. The technical gist of the present invention is to provide high heat-resistant graphene oxide not having an oxygen-containing functional group such as a lactol group or a carboxyl group on the surface but having an oxygen-containing functional group such as an epoxy group or a hydroxyl group on the surface, thereby exhibiting thermal resistance and stability. In addition, the technical gist is also to provide a method of manufacturing conductive graphene fiber from the high heat-resistant graphene oxide and conductive graphene fiber manufactured by the method.
SOLID ELECTROLYTES, BATTERIES, AND METHODS
Electrolytes, methods of preparing electrolytes, and batteries include electrolytes. Electrolytes may include a material of formula (I), Li.sub.3PS.sub.4-xO.sub.x, wherein x is 0<x≤1. The electrolytes may be glass-ceramic electrolytes. Batteries including electrolytes may be lithium-ion batteries.
PROCESS FOR MAKING SYNTHETIC MINERALS
Methods for making a synthetic mineral and methods for making synthetic mineral precursors and the products of said methods.
Sulfide solid electrolyte
It is an object of the invention to provide sulfide solid electrolytes having good processability at the time of manufacturing a battery and high ionic conductivity. The present invention relates to a sulfide solid electrolyte containing lithium, phosphorus and sulfur, having a diffraction peak A at 2θ=25.2±0.5 deg and a diffraction peak B at 29.7±0.5 deg in powder X-ray diffraction using CuKα rays, and the half-value width of at least one peak obtained by separating the peaks observed in a range of 60 to 120 ppm in solid-state .sup.31P-NMR measurements is 500 to 800 Hz.