Abstract: Disclosed in the present application is a high-silica Y molecular sieve having FAU topology. The anhydrous chemical constitution of the molecular sieve is as shown in formula I: kM.mR1.nR2.(SixAly)O2 Formula I; wherein, M is at least one of alkali metal elements; R1 and R2 represent organic templating agent agents; k represents the numbers of moles of the alkali metal element corresponding to per mole of (SixAly)O2, k=0˜0.20; m and n represent the numbers of moles of templating agents R1 and R2 corresponding to per mole of (SixAly)O2, m=0˜0.20, n=0.01˜0.20; x, y respectively represents the mole fraction of Si and Al, 2x/y=7-40, and x+y=1; R1, R2 are independently selected from one of nitrogen-containing heterocyclic compounds and their derivatives, and quaternary ammonium compounds. Also disclosed in the present application is a synthesis method for the high-silica Y molecular sieve having FAU topology.

Abstract: A method for synthesizing a mordenite (MOR) molecular sieve with a modulatable location and distribution of B acid sites, and a product thereof and the use thereof. Provided is a method for synthesizing a mordenite MOR molecular sieve with acid sites located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel in the presence or absence of an inorganic base. The method includes introducing an additional reagent and an optional fluorinating reagent which have different structures and charge densities into a synthetic gel, and the B acid sites of the obtained MOR zeolite are located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel A catalyst product obtained exhibits an excellent performance in terms of adsorption and catalysis. The synthesis method has broad industrial application, particularly being applied to catalysts for the carbonylation reaction of dimethyl ether.

Abstract: A method for synthesizing a mordenite (MOR) molecular sieve with a modulatable location and distribution of B acid sites, and a product thereof and the use thereof. Provided is a method for synthesizing a mordenite MOR molecular sieve with acid sites located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel in the presence or absence of an inorganic base. The method includes introducing an additional reagent and an optional fluorinating reagent which have different structures and charge densities into a synthetic gel, and the B acid sites of the obtained MOR zeolite are located at an 8-membered ring “side pocket” in communication with a 12-membered ring pore channel A catalyst product obtained exhibits an excellent performance in terms of adsorption and catalysis. The synthesis method has broad industrial application, particularly being applied to catalysts for the carbonylation reaction of dimethyl ether.

Abstract: The present disclosure relates to a method and device for augmented reality display of real physical model. By adopting the method and/or device of the present disclosure, the real physical model may be combined with its virtual physical model, and the display of the physical model may become more vivid with the help of AR technology.

Abstract: The present disclosure relates to a method and device for augmented reality display of real physical model. By adopting the method and/or device of the present disclosure, the real physical model may be combined with its virtual physical model, and the display of the physical model may become more vivid with the help of AR technology.

Abstract: Intermediates of Ertapenem of formula 2a wherein Np represents (I) or (II), and P1 and P2 represent carboxyl protecting groups, and their preparation methods. Compound 2a prepared by the present methods in solid form is amorphous. The present invention also relates to a composition comprising at least 95% of the intermediate of Ertapenem of formula 2a.

Abstract: Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.

Abstract: Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.

Abstract: Intermediates of Ertapenem of formula 2a wherein Np represents (I) or (II), and P1 and P2 represent carboxyl protecting groups, and their preparation methods. Compound 2a prepared by the present methods in solid form is amorphous. The present invention also relates to a composition comprising at least 95% of the intermediate of Ertapenem of formula 2a.