CAS: 12007-81-7; Boron Silicide

专利信息

专利号:WO-9727965-A1
优先权日:1996-01-16
标 题:Synthesis of h-phase products
发明人：BARSOUM MICHEL W; BRODKIN DMITRI; EL-RAGHY TAMER; YAROSCHUK GREGG S
权利人:UNIV DREXEL
摘要:Products having single phases or solid solutions of the formula M2R1X1 wherein M is transition metal, R is one or more of Si, Al, Ge, Pb, Sn, Ga, P, S, In, As, Tl or Cd, and X is one or more of B, C or N can be prepared by subjecting a powdered mixture containing M, R and X to a temperature of about 1000 °C to about 1800 °C, preferably under a pressure of about 5 MPa to about 200 MPa. The products so formed have excellent machinability. The products may also be present as composites, preferably composites which are in thermal equilibrium with the single phase or solid solutions of the formula M2R1X1.

专利号:US-5942455-A
优先权日:1995-11-14
标题 :Synthesis of 312 phases and composites thereof
发明人：BARSOUM MICHAEL; EL-RAGHY TAMER; BRODKIN DMITRI; ZAVALIANGOS ANTONIOS; KALIDINDI SURYA
权利人:UNIV DREXEL
摘要:Products having single phases or solid solutions of the formula M 3 X 1 Z 2 wherein M is a transition metal, X is Si, Al or Ge and Z is B, C or N can be prepared by taking a powdered mixture containing M, X and Z to a temperature of about 1000° C. to about 1800° C., optionally simultaneously under a pressure of about 5 MPa to about 200 MPa. The products so formed have excellent shock resistance, oxidation resistance and machinability. The products may also be present as composites, preferably composites which are in thermal equilibrium with the single phase or solid solutions of the formula M 3 X 1 Z 2 .

专利号:WO-2024221266-A1
优先权日:2023-04-26
标 题:Synthesis method for and use of high-silicon mordenite molecular sieve having better reactive site accessibility
发明人：PEI RENYAN; ZHANG YULING; WANG GUOJIAN; XIA CHUNHUI; LV XINXIN; YANG PEIZHI; ZHAO WEI; DONG HUIFANG; TONG JUN; CAO XUE; LIU YONG
权利人:YANCHANG ZHONGKE DALIAN ENERGY TECH CO LTD
摘要:The present application relates to the field of molecular sieves, and discloses a synthesis method for and use of a high-silicon mordenite molecular sieve having better reactive site accessibility. The synthesis method for a high-silicon mordenite molecular sieve having better reactive site accessibility comprises the following steps: S1, obtaining a silicon-boron precursor prepared from a mother liquor concentrated solution and a boron source; S2, obtaining an aluminum-containing alkaline solution; S3, carrying out hydrothermal crystallization on a mixture of the silicon-boron precursor and the alkaline solution to obtain a product; and S4, carrying out heat treatment and/or acid treatment on the product in the presence of water vapor, to obtain the high-silicon mordenite molecular sieve. According to the method, the reaction low-temperature activity is better while improving the acid strength and the 8-membered cyclic acid proportion, the solid waste of molecular sieve synthesis is greatly reduced, the cost of wastewater treatment for molecular sieve scale-up production is reduced, under the same condition, the initial reaction temperature is significantly reduced compared with the current initial reaction temperature, and the one-way service life of a catalyst can be greatly prolonged.

专利号:US-2024375959-A1
优先权日:2020-10-02
标 题 :Scalable synthesis of perimorphic materials

专利号:US-2024034630-A1
优先权日:2020-10-02
标 题 :Synthesis of perimorphic materials

专利号:EP-4222110-A1
优先权日:2020-10-02
标 题 :Scalable synthesis of perimorphic materials