Patent classifications
C01B37/00
BODY COMPRISING A FUNCTIONAL LAYER INCLUDING METAL ORGANIC FRAMEWORKS AND METHOD OF MAKING THE BODY
A body can comprise a substrate and a functional layer overlying at least a portion of a surface of the substrate. The functional layer can comprise metal organic frameworks (MOFs) and a binder, the binder including an organic polymer, and an adhesion loss factor (ALF) of the functional layer to the substrate can be not greater than 7%.
BODY COMPRISING A FUNCTIONAL LAYER INCLUDING METAL ORGANIC FRAMEWORKS AND METHOD OF MAKING THE BODY
A body can comprise a substrate and a functional layer overlying at least a portion of a surface of the substrate. The functional layer can comprise metal organic frameworks (MOFs) and a binder, the binder including an organic polymer, and an adhesion loss factor (ALF) of the functional layer to the substrate can be not greater than 7%.
Solution phase method for making phase change materials
A method to form a phase change material (PCM). The method includes preparing a polymer solution by mixing an amount of a polymer in a solvent and mixing the polymer solution with an UiO-66 metal-organic framework (MOF) to form a composite. The polymer is a polyethylene glycol (PEG). The method further includes subjecting the composite to ultrasonic agitation and evaporating the solvent from the composite to form the PCM. After the evaporation of the solvent, particles of the PCM exhibit rounded octahedral structures.
METHOD FOR PREPARATION OF HIERARCHICAL TS-1 MOLECULAR SIEVE
The present application discloses a method for preparing a hierarchical porous TS-1 molecular sieve, which uses a silicon-titanium ester polymer as both titanium source and silicon source. In the method, silicon and titanium are uniformly connected to a same polymer, and the hydrolysis rates thereof are equivalent during hydrolysis, which can prevent TiO.sub.2 precipitation and reduce the generation of non-framework titanium. Further, the silicon-titanium ester polymer is not only used as both silicon source and titanium source, but also can be used as mesoporous template in the synthesis process. The obtained TS-1 molecular sieve has mesoporous structure with narrow pore size distribution, which plays an important role in promoting the application of TS-1 molecular sieve in the field of catalysis.
MWW-TYPE ZEOLITE WITH MACROSCALE HOLLOW STRUCTURE
The present invention provides zeolite hollow spheres in which zeolite crystals grow to form a framework of macropore through a hydrothermal crystallization process using the hydrophilic surface of a carbon sphere as a hard template, wherein the zeolite framework is an ordered, porous crystalline zeolite material with a number of channels or pores interconnected, which has two independent pore structures including mesopores and micropores. The zeolite hollow spheres of the present invention can be used for various purposes such as catalysts and adsorbents.
Tin-titanium-silicon molecular sieve, preparation method and application thereof
A tin-titanium-silicon molecular sieve, a preparation method and an application thereof are provided. The electron binding energy of framework tin active centers in the tin-titanium-silicon molecular sieve is 488.5 eV or less. In the tin-titanium-silicon molecular sieve, the molar ratio of titanium to silicon is preferably 0.005-0.03, and the molar ratio of tin to silicon is preferably 0.005-0.025. The tin-titanium-silicon molecular sieve of the invention has more catalytic active centers, a lower electron binding energy of framework tin active centers, and an excellent catalytic performance.
MOLECULAR SIEVE BORON SSZ-121, ITS SYNTHESIS AND USE
A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.
Non-oxidative conversion of methane into ethylene using isomorphous metal-substituted zeolite framework catalyst
Process for the conversion of non-oxidative coupling of methane to ethylene, under non-oxidative conditions, comprising: providing a first stream containing at least 50 vol. % of methane based on the total volume of said first stream; providing a catalyst; putting in contact said first stream with said catalyst at a weight hour space velocity ranging from 0.5 to 100 h.sup.−1, a temperature ranging from 500° C. to 1100° C. and a pressure ranging from 0.1 MPa to 5 Mpa in the absence of oxygen; recovering a second stream containing unconverted methane if any, ethylene and hydrocarbons having at least 2 carbon atoms. Said process is remarkable in that said catalyst is a synthetic zeolite material, containing at least one metal M with silicon to metal M molar ratio Si/M as determined by inductively coupled plasma optical emission spectrometry ranging from 100 to 65440 and in that said metal M is incorporated inside of the zeolite tetrahedral sites.
IZM-5 CRYSTALLISED SOLID AND METHOD FOR PREPARING SAME
The present invention relates to a crystallised solid, called IZM-5, comprising a chemical composition expressed on an anhydrous base, in terms of mole, and defined by the following general formula: Sn.sub.aZn.sub.bS.sub.8: cR, wherein R represents at least one nitrogenous organic species; S sulphur, “a” is the molar amount of tin, denoted Sn, between 0.1 and 5; “b” is the molar amount of zinc, denoted Zn, between 0.2 and 8; “c” is the molar amount of the nitrogenous organic species R between 0 and 4.
Extruded Metal-organic Framework Materials and Methods For Production Thereof
Metal-organic frameworks (MOFs) are highly porous entities comprising a multidentate ligand coordinated to multiple metal atoms, typically as a coordination polymer. MOFs are usually produced in powder form. Extrusion of powder-form MOFs to produce shaped bodies has heretofore proven difficult due to loss of surface area and poor crush strength of MOF extrudates, in addition to phase transformations occurring during extrusion. The choice of mixing conditions and the mixing solvent when forming MOF extrudates can impact these factors. Extrudates comprising a MOF consolidated material may feature the MOF consolidated material having a BET surface area of about 50% or greater relative to that of a pre-crystallized MOF powder material used to form the extrudate. X-ray powder diffraction of the extrudate shows about 20% or less conversion of the MOF consolidated material into a phase differing from that of the pre-crystallized MOF powder material.