B01D2256/26

Material ITQ-55, method for preparation and use

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula
x(M.sub.1/nXO.sub.2):yYO.sub.2:gGeO.sub.2:(1-g)SiO2 in which M is selected between H.sup.+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, a method for its preparation and its use.

Separation and storage of fluids using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula
x(M.sub.1/nXO.sub.2):yYO.sub.2:gGeO.sub.2:(1g)SiO2 in which M is selected between H.sup.+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included
that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

Separation and storage of fluids using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula
x(M.sub.1/nXO.sub.2):yYO.sub.2:gGeO.sub.2:(1g)SiO2 in which M is selected between H.sup.+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included
that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

Separation and storage of fluids using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula
x(M.sub.1/nXO.sub.2):yYO.sub.2:gGeO.sub.2:(1g)SiO2 in which M is selected between H.sup.+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included
that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

Reduction of SiCl4 in the presence of BCl3

The present invention relates, in general, to the purification of boron trichloride (BCl.sub.3). More particularly, the invention relates to a process for minimizing silicon tetrachloride (SiCl.sub.4) formation in BCl.sub.3 production and/or the removal of SiCl.sub.4 in BCl.sub.3 product stream by preventing/minimizing the silicon source in the reaction chambers. In addition, a hydride material may be used to convert any SiCl.sub.4 present to SiH.sub.4 which is easier to remove. Lastly freeze separation would replace fractional distillation to remove SiCl.sub.4 from BCl.sub.3 that has been partially purified to remove light boilers.

METHOD FOR THE SEPARATION OF PHOSPHORUS PENTAFLUORIDE FROM HYDROGEN CHLORIDE
20250065259 · 2025-02-27 ·

The present invention relates to a process of separating a feed stream comprising HCl and PF.sub.5 into a plurality of streams, wherein a first stream is enriched in PFS and a second stream is enriched in HCl, the process comprising the feed stream entering one or more permeable membrane separation modules, wherein the membrane separation module comprises a permeable membrane which is selectively permeable to one of HCl or PF.sub.5.

PROCESS FOR PURIFYING (HYDRO) FLUOROPROPENES CONTAMINATED WITH HALOGENATED ETHANE
20170100691 · 2017-04-13 ·

A process for treating a composition comprising one or more desired (hydro)fluoroolefins and one or more undesired halogenated ethanes, halogenated methanes or mixtures thereof so as to reduce the concentration of at least one undesired halogenated ethane or halogenated methane, the process comprising contacting the composition with an adsorbent comprising pores having openings which have a size across their largest dimension of about 6 A or less.

Separation, storage, and catalytic conversion of fluids using ITQ-55

This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula
x(M.sub.1/nXO.sub.2):yYO.sub.2:gGeO.sub.2:(1g)SiO2 in which M is selected between H.sup.+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included
that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.

High Purity Gas Purifier

High-purity gas purifiers for purification of corrosive gases, such as halogen gases or halide gases, and noncorrosive gases, such as hydrogen and inert gases, methods of making and methods of using the gas purifiers, are described. The gas purifier includes a housing made of nickel or stainless steel. Within the housing, the gas purifier includes a purifier resin, including a modifier coated onto a substrate. The gas purifier further includes porous nickel membranes located at the inlets and outlets of the device. The inlets and outlets are capable of fluid communication with external fixtures.

Preparation method and use method of material for deep purification of HF electronic gas

Provided is a preparation method and use method of a material for deep purification of HF electronic gas. A metal fluoride-loaded activated carbon material AC/MFx.Math.nH.sub.2O is prepared, and a mixed gas flow of carbonyl fluoride and high-purity nitrogen is used to deeply dehydrate the material to obtain the material for deep purification of HF electronic gas AC/MFx. This kind of material has fluoride that can form crystal water to form hydrated metal fluoride, and has strong water absorption properties. Moreover, the anhydrous fluoride and activated carbon do not have to face the problem of being corroded by HF, and the collapse of framework structure and the secondary pollution to HF from reaction products would not be caused. The material has the advantages of high purity and extremely low moisture content when being used for efficiently removing moisture in HF.