Abstract:
The present invention relates to a process for the production of a zeolitic material having an MWW framework structure comprising YO 2 and B 2 O 3 , wherein Y stands for a tetravalent ele- ment, said process comprising (i) preparing a mixture comprising one or more sources for YO 2 , one or more sources for B 2 O 3 , one or more organotemplates, and seed crystals, (ii) crystallizing the mixture obtained in (i) for obtaining a layered precursor of the MWW framework structure, (iii) calcining the layered precursor obtained in (ii) for obtaining the zeolitic material having an MWW framework structure, wherein the one or more organotemplates have the formula (I) R 1 R 2 R 3 N, wherein R 1 is (C 5 -C 8 )cycloalkyl, and wherein R 2 and R 3 are independently from each other H or alkyl, and wherein the mixture prepared in (i) and crystallized in (ii) contains 35 wt.-% or less of H 2 O based on 100 wt.-% of YO 2 contained in the mixture prepared in (i) and crystallized in (ii), as well as to a synthetic boron-containing zeolite which is obtainable and/or obtained according to the inventive process and to its use.
Abstract translation:本发明涉及生产具有包含YO 2和B 2 O 的MWW骨架结构的沸石材料的方法, 其中Y代表四价元素,所述方法包括(i)制备包含一种或多种YO 2来源的混合物,一种或多种来源于B (ii)使(i)中获得的混合物结晶以获得MWW骨架结构的分层前体,(iii) 煅烧(ii)中获得的层状前体以获得具有MWW骨架结构的沸石材料,其中所述一种或多种有机模板具有式(I)R 1 R 2 2, R 3 N,其中R 1是(C 5 -C 8)环烷基,并且其中R
Abstract:
A process for preparing ethene oxide comprising providing a liquid feed stream comprising ethene, hydrogen peroxide, and a solvent; passing the liquid feed stream into an epoxidation zone comprising a catalyst comprising a titanium zeolite comprising zinc and having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising ethene oxide, water, and the solvent; removing an effluent stream from the epoxidation zone, the effluent stream comprising ethene oxide, water and the solvent.
Abstract:
An incipient wetness impregnation method for preparing a tin-containing zeolitic material having framework type BEA, a novel tin-containing zeolitic material having framework type BEA and its use.
Abstract:
The invention is related to a vehicle (2) comprising an internal combustion engine (8), at least one storage vessel (1) and a cooling chamber (10) and optionally an air condition unit (12), wherein a sorption medium is disposed in the at least one storage vessel (1) and the at least one storage vessel (1) contains a fuel for the internal combustion engine (8), the combustion engine (8) and the at least one storage vessel (1) are connected by a pipe (14) for conducting the fuel, and the at least one storage vessel (1) is thermally coupled with the cooling chamber (10) and optionally the air condition unit (12). The invention is further related to a process for operation of said vehicle.
Abstract:
A process for preparing a tin-containing zeolitic material having a BEA framework structure comprising providing a zeolitic material having a BEA framework structure having vacant tetrahedral framework sites, providing a tin-ion source in solid form, incorporating tin into the zeolitic material via solid-state ion exchange, calcining the zeolitic material, and treating the calcined zeolitic material with an aqueous solution having a pH of at most 5.
Abstract:
A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.4; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MVVW comprising zinc, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane.
Abstract:
The present invention relates to a process for recovering oil from a subterranean formation by injecting both solid particles and water into the formation. An oil-in-water emulsion that is stabilized by solid particles is formed in the pores of the formation. This emulsion is recovered from the subterranean formation.
Abstract:
The present invention relates to a process for the production of a zeolitic material having a framework structure comprising YO2, wherein said process comprises: (1) preparing a mixture comprising one or more tetravalent elements Y in elemental form, one or more organic hydroxide salts, and one or more protic solvents; (2) reacting the mixture obtained in step (1) for converting at least part of the one or more tetravalent elements Y into an oxidic form thereof containing one or more Y-O single bonds and/or one or more Y=O double bonds; and (3) crystallizing a zeolitic material from the mixture obtained in step (2).
Abstract:
The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof.
Abstract:
The present invention relates to an organotemplate-free synthetic process for the production of a zeoiitic material having a CHA-type framework structure comprising YO2, X 2 O 3 , and optionally comprising Z 2 O 5 , wherein said process comprises the steps of: (1 ) providing a mixture comprising one or more sources for YO 2 , one or more sources for X 2 O 3 , and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO 2 , X 2 O 3 , and optionally comprises Z2O5; and (2) crystallizing the mixture obtained in step (1 ); wherein Y is a tetravaient element, X is a trivalent element, and Z is a pentavalent element, wherein optionally one or more sources for Z 2 O 5 are further provided in step (1 ), and wherein if the CHA framework of the seed crystals does not contain Z 2 O 5 , the seed crystals then have a Y0 2 : X 2 O 3 molar ratio of 5 or greater than 5.
Abstract translation:本发明涉及一种用于生产具有包含YO 2,X 2 O 3和任选地包含Z 2 O 5的CHA型骨架结构的氧化锌材料的无有机模板的合成方法,其中所述方法包括以下步骤:(1)提供包含 YO2的一种或多种来源,X 2 O 3的一种或多种来源和具有CHA骨架结构的晶种,其中晶种的CHA骨架结构包含YO 2,X 2 O 3,并且任选包含Z 2 O 5; 和(2)使步骤(1)中获得的混合物结晶; 其中Y是四元素,X是三价元素,Z是五价元素,其中任选地在步骤(1)中还提供一种或多种Z2O5源,并且其中如果晶种的CHA骨架不包含 Z2O5,然后晶种的Y02:X2O3摩尔比为5或大于5。