CAS: 231-36-7; Diquat Dibromide

专利信息

专利号:US-11851338-B2
优先权日:2019-04-19
标 题:Method for fast synthesis of an AFX-structure zeolite with a FAUjasite source
发明人：MARTINEZ FRANCO RAQUEL; HARBUZARU BOGDAN; LLIDO ERIC; BERTHOUT DAVID
权利人:IFP ENERGIES NOW
摘要:The present invention relates to a process for the rapid synthesis of an AFX-structure zeolite comprising at least:n i) mixing, in an aqueous medium, a FAU-structure zeolite having an SiO 2 (FAU) /Al 2 O 3 (FAU) molar ratio of between 2.00 and 100, a nitrogen-containing organic compound R, at least one source of at least one alkali and/or alkaline-earth metal M of valence n,n with the following molar composition: (SiO 2 (FAU) )/(Al 2 O 3 (FAU) ) between 2.00 and 100, H 2 O/(SiO 2 (FAU) ) between 1 and 100, R/(SiO 2 (FAU) ) between 0.01 and 0.6, M 2/n O/(SiO 2(FAU) ) between 0.005 and 0.45, wherein SiO 2 (FAU) denotes the amount of SiO 2 provided by the FAU zeolite and Al 2 O 3 (FAU) denotes the amount of Al 2 O 3 provided by the FAU zeolite, until a homogeneous precursor gel is obtained; n ii) hydrothermally treating said precursor gel obtained at the end of step i) under autogenous pressure at a temperature of between 120° C. and 250° C., for 4 to 12 hours.

专利号:US-2024207831-A1
优先权日:2022-12-08
标 题 :Molecular Sieve CIT-16P, Its Synthesis, Transformation and Use
发明人：KANG JONG HUN; ALSHAFEI FAISAL H; DAVIS MARK E
权利人:CALIFORNIA INST OF TECHN
摘要:The disclosure provides a novel silicoaluminophosphate molecular sieve, referred to as CIT-16P, that comprises a silicoaluminophosphate framework with an occluded OSDA that is DiQ-C 4 or DiQ-C 3 . The synthesis of CIT-16P, its conversion to SAPO-17, and the use of the so-derived SAPO-17 in the MTO reaction are also disclosed.

专利号:US-6723300-B2
优先权日:2002-03-15
标 题 :Synthesis of porous crystalline materials in fluoride media
发明人：SCHMITT KIRK D; CASMER STEPHEN G
权利人:EXXONMOBIL RES & ENG CO
摘要:In a process for synthesizing a porous crystalline material, a mixture capable of forming said material is prepared wherein the mixture comprises sources of water, an oxide of a tetravalent element Y, preferably silicon, an oxide of a trivalent element X, wherein X is selected from the group consisting of aluminum, boron, gallium, iron, and indium, fluoride ions, and an organonitrogen cation RN capable of directing the synthesis of said material, wherein the molar ratio of fluoride ions to organonitrogen cations RN in said mixture is greater than 1.15 m but less than 2.5 m. The mixture is maintained under crystallization conditions until crystals of said material are formed and the resultant crystalline material is recovered.

专利号:WO-2024179455-A9
优先权日:2023-02-28
标 题 :Synthesis of cha zeolitic materials, cha zeolitic materials obtainable therefrom and scr catalysts comprising the same
发明人：QI XIAO DUO; Shi Li Hua; VATTIPALLI VIVEK; DAI YU; Wei Ming Ming; LIU HAI TAO; LI JIN
权利人:BASF CORP; BASF CHINA CO LTD
摘要:The present invention relates to a process for preparing a zeolite having a CHA-type framework structure comprising X 2 O 3 and YO 2 , wherein X is a trivalent element and Y is a tetravalent element, which includes (1) preparing a synthesis mixture comprising (A) a source for X 2 O 3 , (B) a source for YO 2 , and (C) a source for an organic structure directing agent (OSDA) comprising a diquaternary ammonium cation of formula (I) or a combination of diquaternary ammonium cations of formula (R 1 R 2 R 3 )N + (CH 2 ) n N + (R 4 R 5 R 6 ) (I) as defined in claims and (2) subjecting the synthesis mixture to crystallization conditions to form a zeolite having a CHA-type framework structure. The present invention also relates to the zeolite having a CHA-type framework structure obtained from the process and use of the zeolite in catalysts for selective catalytic reduction of nitrogen oxides.

专利号:US-8562941-B2
优先权日:2005-12-20
标题:Perturbed synthesis of materials
发明人：JOHNSON IVY D; VROMAN HILDA B; WESTON SIMON C; STEVENS LARRY M
权利人:JOHNSON IVY D; VROMAN HILDA B; WESTON SIMON C; STEVENS LARRY M; EXXONMOBIL RES & ENG CO
摘要:The present invention is a method that perturbs the initial crystallization of a material from a less desired phase into a more desired phase. More specifically, the present invention is a method to form a different crystallization of a zeolite, mesoporous material, SAPO 4 , AlPO 4 or porous inorganic oxide after the hydrothermal synthesis has started and a precursor crystalline phase has formed.

专利号:US-10465033-B2
优先权日:2016-11-10
标题:One step synthesis of ultrahigh molecular weight block copolymers
发明人：URBAN MAREK W
权利人:UNIV CLEMSON; UNIV CLEMSON RES FOUNDATION
摘要:Single-step synthesis processes for production of ultrahigh molecular weight block copolymers are described. The ultrahigh molecular weight copolymers can have a molecular weight of about 10 6 or greater and can be formed within a few hours in a surfactant-free environment. The formation process is controlled by initiator-starvation conditions in a sequential polymerization of monomers exhibiting different solubility in the solvent.