CAS: 10043-01-3; Aluminum Sulfate,Ar

专利信息

专利号:US-2010016607-A1
优先权日:2006-12-11
标题:Process for the Synthesis of Highly Active Binary Metal Fluoride as a Fluorinating Agent for Aromatics
发明人：DOLBIER JR WILLIAM R; JANMANCHI KRISHNA MURTHY
权利人:UNIV FLORIDA
摘要:The subject invention relates to a process for the synthesis of highly active binary metal fluoride system for the fluorination of aromatic compounds. Fluorinated aromatic compounds are valuable synthons for the chemical synthesis of pharmaceutical drugs and novel polymers. Fluorobenzene is used to control carbon content in steel manufacturing, is an intermediate for pharmaceuticals, pesticides and other organic compounds. Fluorobenzene is typically produced by the reaction of aniline and sodium nitrite in the presence of hydrogen fluoride. The present invention relates to a process for the synthesis of highly active binary metal fluoride system consists of copper (II) fluoride and aluminum (III) fluoride for the fluorination of aromatic compounds in gas phase and recycling of the reagent, in situ, using O 2 and HF.

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.

专利号:US-5096684-A
优先权日:1989-03-31
标题 :Process for the synthesis of precursors of molecular sieves of the silicoaluminophosphate type, precursors obtained and their application to obtaining the said molecular sieves
发明人：GUTH FRANCOISE; KESSLER HENRI; DES COURIERES THIERRY
权利人:ELF FRANCE
摘要:Process for the synthesis of precursors of molecular sieves of the silicoaluminophosphate type by heating to >/=100 DEG C. under autogenous pressure a reaction mixture containing sources of silicon, aluminum and phosphorus in the presence of an organic structuring agent and of hydrofluoric acid. The precursor obtained can be converted into molecular sieve by calcination. Molecular sieves of the silicoaluminophosphate type can be used as adsorbants and catalysts for the conversion of hydrocarbons.

专利号:US-12263464-B2
优先权日:2018-03-14
标题 :Method for in-situ synthesis of metal organic frameworks (MOFs), covalent organic frameworks (COFs) and zeolite imidazolate frameworks (ZIFs), and applications thereof
发明人：PAHWA DEEPAK; PAHWA VARUN; CHOUDHARY ANIL KUMAR; SONIA; JHA VIVEK KUMAR; CHAUHAN ANJALI; YADAV ANNU
权利人:DESICCANT ROTORS INTERNATIONAL PRIVATE LTD
摘要:The present invention relates to a method for the in situ synthesis of of MOFs (metal organic frameworks), COFs (covalent organic frameworks), and ZIFs (Zeolitic imidazolate framework), onto and within different types of porous substrates, and their applications. The present invention provides a unique and easy to utilize method by which a number of MOFs, COFs and ZIFs can be synthesized directly onto and within a porous substrate with high performance efficiency ensuring higher grammage in formation of adsorbent product onto and within the substrate.

专利号:US-5695735-A
优先权日:1994-11-30
标题:Process for the synthesis of zeolites and mesoporous solids from a homogeneous solution in a semi-open system
发明人：BENAZZI ERIC; LEGOFF PIERRE-YVES; CAULLET PHILIPPE; GUTH JEAN-LOUIS
权利人:INST FRANCAIS DU PETROLE
摘要:The invention concerns a process for the synthesis of zeolites based on element(s) T and mesoporous solids based on element(s) T, T being silicon and/or aluminium, comprising the following sequence of steps: i) synthesizing a reaction medium which is a homogeneous source of element(s) T containing: a) at least one source of element(s) T selected from the group formed by aqueous basic solutions of silica or silica and alumina and alcoholic solutions of alkyl tetraorthosilicate and trialkoxyaluminium; b) optionally, at least one structuring agent; c) optionally, seeds of the desired crystalline phase; ii) heating the reaction medium to a temperature in the range 20 DEG C. to 220 DEG C. for a period in the range several minutes and several days; iii) injecting at least one chemical agent at a controlled rate to generate polycondensable species in said medium.

专利号:WO-2013062491-A1
优先权日:2010-10-25
标题:Synthesis method for obtaining anatase nanoparticles of high specific surface area and spherical morphology
发明人：VERHOVSEK DEJAN; VERONOVSKI NIKA; SELISNIK ALJAZ; CEH MIRAN; SAMARDZIJA ZORAN
权利人:CINKARNA METALURSKO KEMICNA IND CELJE D D; VERHOVSEK DEJAN; VERONOVSKI NIKA; SELISNIK ALJAZ; CEH MIRAN; SAMARDZIJA ZORAN
摘要:The subject of the invention is anatase nanoparticles and ways of the synthesis thereof by a gel- sol method from sodium titanate, which is produced from metatitanic acid in a reaction with NaOH. The molar ratio between NaOH and TiO 2 must be low for a synthesis of sodium titanate, if the goal is to synthetize anatase, i. e. is between 1 :3 to 1 : 1. If the goal is to synthetize rutile, the molar ratio must be higher, at least between 3: 1 to 4: 1. In the gel-sol reaction between sodium titanate and acid very small anatase particles are formed that are of spherical morphology, polycrystalline and present in the acidic suspension. The size of crystallites that constitute the anatase particles is approximately 5 nm, wherein the particles themselves are bigger, somewhere between 40 to 60 nm. The subject of the invention is also a manner of stabilising the acidic suspension of nanoparticles, which allows an increase in pH value without causing excessive agglomeration, which is achieved by the use of an suitable dispersant, citric acid. A further subject of the invention is a hydrothermal method, which allows re-crystallisation of polycrystalline anatase nanoparticles into a monocrystalline form under hydrothermal conditions in an autoclave at a temperature about 130 °C or more and at adequate pressure of the water vapour.