CAS: 1304-56-9; Beryllium Oxide

Beryllium Oxalate 反应生成氧化铍
参考文献:Kerbe,Friedmar;Irmisch,Reiner
标题:Kerbe,Friedmar;Irmisch,Reiner

专利信息

专利号:US-9289755-B2
优先权日:2012-12-07
标题 :Synthesis of ZSM-5 crystals with improved morphology
发明人：LAI WENYIH FRANK; ROLLMAN NICHOLAS S
权利人:LAI WENYIH FRANK; ROLLMAN NICHOLAS S; EXXONMOBIL RES & ENG CO
摘要:Methods are provided for synthesizing crystals having a ZSM-5 framework structure from synthesis mixtures suitable for synthesis of ZSM-12 framework structure crystals in the absence of seed crystals with a ZSM-5 framework structure, such as in the absence of any seed crystals. For synthesis mixtures with a sufficiently high XO 2 :Y 2 O 3 ratio, seeding a synthesis mixture with ZSM-5 seed crystals can result in production of pure phase ZSM-5 crystals with a new morphology. The morphology can include rod-like primary crystallites with a length of about 0.5 μm or less that are organized/aggregated into larger secondary crystal structures. The aggregation of the primary crystallites into a secondary crystal structure can allow for an unexpectedly large mesoporous surface area for the ZSM-5 crystals.

专利号:US-7247287-B2
优先权日:2003-06-11
标 题 :Synthesis of aluminophosphates and silicoaluminophosphates
发明人：CAO GUANG; SHAH MATU J
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:The invention is directed to a method of synthesising silicoaluminophosphate and aluminophosphate molecular sieves using synthesis templates that contain at least one template of general formula R 1 R 2 N—R 3 , wherein R 1 and R 2 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R 3 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms, and 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S. In particular, the present invention relates to the synthesis of silicoaluminophosphate molecular sieves of the CHA framework type having a low silicon to aluminium atomic ratio.

专利号:US-10364220-B2
优先权日:2012-12-21
标题:Synthesis of succinimides and quaternary ammonium ions for use in making molecular sieves
发明人：SCHMITT KIRK D; ZUSHMA STEPHEN; BURTON ALLEN W
权利人:EXXONMOBIL CHEMICAL PATENTS INC
摘要:The present invention relates to the synthesis of succinimides, in particular to a method for the synthesis of a succinimide compound, comprising the step of reacting an alkyne, with carbon monoxide and ammonia or an amine, in the presence of an iron catalyst, wherein the reaction is carried out in an amine liquid phase and/or in the absence of an ether solvent. The succinimides may be reduced to quaternary ammonium cations which may be used as structure directing agents in the synthesis of molecular sieves.

专利号:US-4100262-A
优先权日:1977-08-15
标 题:Synthesis of zeolite ZSM-5
发明人：PELRINE BRUCE PATRICK
权利人:MOBIL OIL CORP
摘要:As synthesized by conventional technique, zeolite ZSM-5 crystals are cubic with some twinning and measure in size over the range of from about 3 × 3 microns to about 8 × 8 microns. By synthesizing crystalline aluminosilicate zeolite ZSM-5 according to the present method, i.e. in the presence of a tetraureacobalt (II) complex and with a specifically defined reaction mixture composition, the crystalline product will consist of highly twinned rectangular prismatic crystals exhibiting extreme uniformity in size of from about 5 × 10 microns to about 10 × 20 microns, depending on the ratio of said tetraureacobalt (II) complex to silica in the zeolite synthesis reaction mixture. Synthesis of ZSM-5 in accordance hereto will provide a zeolite with enhanced catalytic activity for certain chemical reactions.

专利号:US-4898722-A
优先权日:1984-12-19
标 题 :Synthesis of crystalline SAPO-37
发明人：DEROUANE ERIC G; VON BALLMOOS ROLAND
权利人:MOBIL OIL CORP
摘要:An improved method for synthesis of improved silicoaluminophosphate SAPO-37 is provided. The method comprises (1) preparing a two-phase reaction mixture containing particular components and comprising both a liquid organic phase and a liquid aqueous phase; (2) heating the reaction mixture at a rate of from 5° C. to 200° C. per hour to a temperature of from 80° C. to 200° C.; agitating the reaction mixture in a manner sufficient to intimately admix said liquid organic and aqueous phases with each other; (4) once nucleation of the silicoaluminophosphate occurs, heating the agitated reaction mixture at rate of from 5° C. to 200° C. per hour to a temperature of from 100° C. to 300° C.; (5) maintaining the agitated reaction mixture at a temperature of from 100° C. to 300° C. and a pH of from 2 to 9 until crystals of the desired silicoaluminophosphate are formed; and (6) recovering silicoaluminophosphate material from the reaction mixture.

专利号:US-10273161-B2
优先权日:2017-01-11
标题:Synthesis of MFI framework type molecular sieves
发明人：XIE DAN
权利人:CHEVRON USA INC
摘要:A method is provided for the synthesis of MFI framework type molecular sieves using 1,6-bis(cyclopropylmethyl)-1,1,6,6-tetramethylhexane-1,6-diaminium cations as a structure directing agent.