B01J20/3057

PRODUCTION OF A POROUS CARBON PRODUCT

A process for the production of a porous carbon product. The process includes the steps of (a) providing a substrate surface; (b) depositing silicon dioxide as a layer on the substrate surface, thereby obtaining a porous silicon di-oxide material; (c) contacting the porous silicon dioxide material on the substrate surface with a first carbon source thereby obtaining a first precursor comprising the porous silicon dioxide material and the first car-bon source; (d) heating the first precursor thereby obtaining a second precursor comprising the porous silicon dioxide material and carbon; and (e) at least partially removing the silicon dioxide in the second precursor, thereby obtaining the porous carbon product. Also disclosed are a porous carbon product and a device that uses a porous carbon product.

Crystalline molecular sieves and synthesis thereof
10246339 · 2019-04-02 · ·

Crystalline molecular sieves and their synthesis using quaternary N-methyl-diisoalkylammonium cations as organic structure directing agents are disclosed. The structure directing agent has the following structure (1): ##STR00001##
in which R.sup.1 is selected from hydrogen, a methyl group, an ethyl group, a propyl group, and a hydroxymethyl group; and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from a methyl group, an ethyl group, and a propyl group.

Crystalline Germanosilicate Materials Of New CIT-13 Topology And Methods Of Preparing The Same
20190083962 · 2019-03-21 ·

The present disclosure is directed to the use of novel crystalline germanosilicate compositions in affecting a range of organic transformations. In particular, the crystalline germanosilicate compositions are extra-large-pore compositions, designated CIT-13 possessing 10- and 14-membered rings.

METHOD FOR PRODUCING THREE-DIMENSIONAL ORDERED POROUS MICROSTRUCTURE AND MONOLITHIC COLUMN PRODUCED THEREBY
20190077936 · 2019-03-14 ·

The present invention relates to a method for producing a three-dimensional ordered porous microstructure. In the method of the invention where the three-dimensional ordered microstructure is produced using the colloidal crystal templating process, the three-dimensional ordered microstructure thus formed is subjected to heat treatment to soften the particles, so as to effectively increase the contact between orderly arranged particles while removing the solvent used to suspend the particles. The present invention further relates to a monolithic column produced thereby. Compared to the monolithic columns produced by conventional methods, the monolithic column according to the invention is characterized in having a higher aspect ratio and a higher pore regularity, while the connecting pores in the column are relatively large in pore size.

Molecular sieve SSZ-109, its synthesis and use
10214427 · 2019-02-26 · ·

A novel synthetic crystalline molecular sieve designated as SSZ-109 is disclosed. SSZ-109 is synthesized using a structure directing agent comprising one or more of N,N,N,N-tetramethyl-N,N-diisobutylhexane-1,6-diammonium cations, N,N,N,N-tetramethyl-N,N-dineopentylhexane-1,6-diammonium cations, and N,N,N,N-tetramethyl-N-isobutyl-N-neopentylhexane-1,6-diammonium cations.

Synthesis of a Novel Ordered Mesoporous Carbon Using COK-19 Template for Water and Wastewater Treatment
20190046953 · 2019-02-14 ·

Ordered mesoporous carbon was prepared using COK-19 silica template. Ordered mesoporous silica COK-19 was synthesized with cubic Fm3m structure. Sucrose as the carbon precursor was impregnated into the mesopores of silica and converted to carbon through carbonization process using sulfuric acid as a catalyst. Ordered mesoporous carbon was obtained after the removal of silica framework using hydrofluoric acid. Several characterization techniques such as nitrogen adsorption-desorption isotherms, transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and elemental analysis were employed to characterize the OMC. The pore size analysis and TEM images confirmed that OMC has replicated the mesostructure of the COK-19. Results obtained from adsorption kinetics and isotherms suggest that the Pseudo-Second-Order Model and Langmuir Isotherm well described the experimental data. The adsorption study showed that the synthesized OMC has an adsorption capacity of 40.5 mg/g for resorcinol removal.

CRYSTALLINE METALLOPHOSPHATES, THEIR METHOD OF PREPARATION, AND USE
20190031521 · 2019-01-31 ·

A new family of crystalline microporous metallophosphates designated AlPO-85 has been synthesized. These metallophosphates are represented by the empirical formula


R.sup.+.sub.rM.sub.in.sup.2+EP.sub.xSi.sub.yO.sub.z

where M is a framework metal alkaline earth or transition metal of valence +2, such as magnesium or zinc, R is an organoammonium cation, and E is a trivalent framework element such as aluminum or gallium. The AlPO-85 compositions are characterized by a new unique ABC-6 net structure, and have catalytic properties suitable for carrying out various hydrocarbon conversion processes, as well as characteristics suitable for adsorption applications.

CRYSTALLINE METALLOPHOSPHATES, THEIR METHOD OF PREPARATION, AND USE

A new family of crystalline microporous metallophosphates designated AlPO-77 has been synthesized. These metallophosphates are represented by the empirical formula


H.sub.xM.sub.m.sup.2+EP.sub.xSi.sub.yO.sub.z

where M is a framework metal alkaline earth or transition metal of valence +2, and E is a trivalent framework element such as aluminum or gallium. The AlPO-77 compositions are characterized by a new unique ABC-6 net structure, and have catalytic properties suitable for carrying out various hydrocarbon conversion processes, as well as characteristics suitable for adsorption applications.

HIERARCHICAL SILICEOUS MESOSILICALITE NANOCARRIER

A mesosilicalite nanocarrier having a hierarchical silicalite characterized by a molar ratio of aluminum to silica in a range of 1:3000 to 1:1000. The hierarchical silicalite includes mesopores of a hexagonal structure, and micropores of silicalite structure with a microporous volume in the range of 0.05 cc/g to 0.1 cc/g. The nanocarrier has a mesophase content in the range of 30 wt % to 70 wt %, a microphase content in the range of 30 wt % to 70 wt %, and a mean pore diameter in the range of 1.5 nm to 5.5 nm. A method of preparing the stable mesosilicalite nanocarrier with hierarchical micro/mesopores to load an antioxidant or drug for targeted drug delivery is also described.

SYNTHESIS OF FIBROUS NANO-SILICA SPHERES WITH CONTROLLED PARTICLE SIZE, FIBRE DENSITY, AND VARIOUS TEXTURAL PROPERTIES

The present disclosure provides a method for synthesizing fibrous silica nanospheres, the method can include, in sequence, the steps of: a) providing a reaction mixture comprising a silica precursor, a hydrolyzing agent, a template molecule, a cosurfactant and one or more solvents; b) maintaining the reaction mixture under stirring for a length of time; c) heating the reaction mixture to a temperature for a length of time; d) cooling the reaction mixture to obtain a solid, and (e) calcinating the solid to pro duce fibrous silica nanospheres, wherein desirable product characteristics such as particle size, fiber density, surface area, pore volume and pore size can be obtained by controlling one or more parameters of the method. The present disclosure further provides a method for synthesizing fibrous silica nanospheres using conventional heating such as refluxing the reactants in an open reactor, thereby eliminating the need for microwave heating in a closed reactor or the need for any pressure reactors.