专利号:US-10618855-B2 优先权日:2016-06-07 标题:Catalyst and method for synthesis of aromatic hydrocarbons through direct conversion of synthesis gas 发明人:PAN XIULIAN; YANG JUNHAO; JIAO FENG; ZHU YIFENG; BAO XINHE 权利人:DALIAN INST CHEM & PHYSICS CAS 摘要:Synthesis of aromatic hydrocarbons from synthesis gas in a fixed bed or a moving bed reactor loaded with a composite catalyst comprising Catalyst Component A and Catalyst Component B mixed via a mechanical mixing mode, wherein the active ingredient of the Catalyst Component A is active metal oxides; and the Catalyst Component B is one or both of ZSM-5 zeolite and metal modified ZSM-5; the pressure of the synthesis gas is 0.1-6 MPa; the reaction temperature is 300-600° C.; and the space velocity is 500-8000 h −1 . The reaction process has a high product yield and selectivity, with the selectivity of aromatics reaching 50-85%, while the selectivity of the methane byproduct is less than 15%.
专利号:US-7901664-B2 优先权日:2008-03-31 标题 :Synthesis of aluminophosphate and metalloaluminophosphate molecular sieves 发明人:CAO GUANG; AFEWORKI MOBAE; SHAH MATU J; MERTENS MACHTELD MARIA 权利人:EXXONMOBIL CHEM PATENTS INC 摘要:In a method of synthesizing an aluminophosphate or metalloaluminophosphate molecular sieve, a synthesis mixture is provided comprising water, a source of aluminum, a source of phosphorus, optionally a source of a metal other than aluminum, a tertiary amine, and an alkylating agent capable of reacting with said tertiary amine to form a quaternary ammonium compound capable of directing the synthesis of said molecular sieve. The synthesis mixture is maintained under conditions sufficient to cause the alkylating agent to react with the tertiary amine to produce the quaternary ammonium compound and to induce crystallization of the molecular sieve.
专利号:US-6540970-B1 优先权日:1999-11-18 标题:Method for the synthesis of molecular sieves 发明人:STROHMAIER KARL G; VAUGHAN DAVID E W 权利人:EXXON MOBIL CHEM PATENTS INC 摘要:The present invention provides a method for the synthesis of MeAPO molecular sieves which includes the following steps: providing a source of alumina, a source of phosphorus, water, and a template suitable for forming a MeAPO molecular sieve; providing a source of metal (Me) including metal particles, the metal particles measuring, in their largest dimension, equal to or less than five nanometers; providing a water soluble organic solvent capable of solubilizing the source of metal; forming a synthesis mixture from the source of alumina, the source of phosphorus, the water, the template, the source of metal, and the solvent; and forming a MeAPO molecular sieve from the synthesis mixture.
专利号:EP-1220823-B1 优先权日:1999-09-30 标题:Process for the synthesis of 2-hydroxyphenyl alkyl ketones 发明人:BORZATTA VALERIO; POLUZZI ELISA; VACCARI ANGELO 权利人:ENDURA SPA 摘要:A process is described for the synthesis of 2-hydroxyphenylalkyl ketones, by means of catalytic rearrangement of phenolic esters. This process is characterized by the use, as catalysts, of crystalline aluminosilicates of the pentasyl type having predefined values of silica/alumina ratio, grain size, surface area and porosity, and containing between 10 wt% and 40 wt% of finely ground alumina as bonding agent. The rearrangement thus catalyzed involves a high conversion of the phenolic ester, a high orthoselectivity and a low formation of phenolic by-products, thus enabling the formation of the end product in high yields. In particular, the process applies to the synthesis of 2-hydroxyacetophenone.
专利号:US-2008103312-A1 优先权日:2006-08-29 标 题:Processes for the synthesis of 5-phenyl-1-trityl-1H-tetrazole 发明人:KANSAL VINOD K; MISTRY DHIRENKUMAR N; VASOYA SANJAY L; LUNAGARIYA VIJAYKUMAR D 权利人:KANSAL VINOD K; MISTRY DHIRENKUMAR N; VASOYA SANJAY L; LUNAGARIYA VIJAYKUMAR D 摘要:Provided are processes for the synthesis of 5-phenyl-1-trityl-1H-tetrazole, an intermediate useful in the synthesis of irbesartan.
专利号:US-11554348-B2 优先权日:2016-11-10 标 题 :Method of preparing hierarchical porous channel molecular sieve membrane and application thereof 发明人:GU XUEHONG; YAO XUN; PENG LI 权利人:NANJING UNIVERSITY OF TECHNOLOGY 摘要:The invention relates to a method for preparing a hierarchical porous zeolite membrane and an application thereof, comprising the following steps: a mesoporous structure-directing agent is added to limit the growth of zeolite crystals, and self-assembled in the crystallization process to generate a mesoporous structure. Based on a seed crystal induced secondary nucleation mechanism, this method can realize one-step hydrothermal synthesis of hierarchical porous zeolite membrane with the advantages of mild and controllable synthesis conditions, simple process, good repeatability, reduced energy consumption and cost savings. The hierarchical porous zeolite membrane prepared by the method has good cut-off performance, and the cut-off molecular weight is adjustable between 200 to 500,000 Da.