会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Catalytic conversion of hydrofluoroalkanol to hydrofluoroalkene
    • 氢氟烷醇催化转化成氢氟烯烃
    • US07026520B1
    • 2006-04-11
    • US11006922
    • 2004-12-08
    • Sudip MukhopadhyayHsuehSung TungHaridasan K. Nair
    • Sudip MukhopadhyayHsuehSung TungHaridasan K. Nair
    • C07C17/00C07C17/08C07C21/18C07C23/00C07C25/13
    • C07C17/00C07C17/25C07C21/18
    • Methane is used as the selective dehydrating agent for the production of 2,3,3,3-tetrafluoro-1-propene (R1234yf) from 2,2,3,3,3-pentafluoro-1-propanol. Supported transition metal catalysts are prepared and used for this reaction with high activity. Almost 58% selectivity to R1234yf is obtained at an alcohol conversion level of 60% using unsupported Ni-mesh as the catalyst. Pd and Pt show almost similar level of conversion; however, the selectivity to the desired product is low. The activity of the metal catalyst was found to be a function of the type of support material, activated carbon showing better activity than alumina. Different important process parameters such as temperature, pressure, and contact time are studied to optimize the process. High pressure and temperature are deleterious to the rate of 1234yf formation; yet, the highest yield to 1234yf is obtained while performing a reaction at 494° C. with a contact time of 23 sec.
    • 甲烷用作用于从2,2,3,3,3-五氟-1-丙醇生产2,3,3,3-四氟-1-丙烯(R1234yf)的选择性脱水剂。 制备负载型过渡金属催化剂,并以高活性用于该反应。 使用未负载的Ni-网作为催化剂,在60%的醇转化率下获得对R1234yf几乎58%的选择性。 Pd和Pt显示几乎相似的转化水平; 然而,对所需产物的选择性低。 发现金属催化剂的活性是支撑材料的类型的函数,活性炭表现出比氧化铝更好的活性。 研究了不同的重要工艺参数,如温度,压力和接触时间,以优化工艺。 高压和高温对于1234yf的形成是有害的; 然而,在494℃下以23秒的接触时间进行反应,获得了对1234yf的最高产率。
    • 16. 发明授权
    • Direct one-step synthesis of CF3-I
    • 直接一步合成CF3-I
    • US07071367B1
    • 2006-07-04
    • US11007919
    • 2004-12-09
    • Sudip MukhopadhyayHsueh Sung Tung
    • Sudip MukhopadhyayHsueh Sung Tung
    • C07C17/00
    • C07C17/093C07C17/158C07C17/204C07C19/16
    • The present invention provides a process for the preparation of trifluoromethyl iodide. The process includes the step of: contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula: Z-I wherein W is selected from CF3, hydrogen and bromine; Z is selected from hydrogen, iodine and chlorine. The step of contacting is carried out, optionally in the presence of a catalyst and further optionally in the presence of air, at a temperature, pressure and for a length of time sufficient to produce the trifluoromethyl iodide.
    • 本发明提供了制备三氟甲基碘的方法。 该方法包括以下步骤:在反应器中接触由下式表示的化合物:<?in-line-formula description =“In-line Formulas”end =“lead”?> CF 3 - W <?in-line-formula description =“In-line Formulas”end =“tail”?>和由以下公式表示的化合物:<?in-line-formula description =“In-line Formulas”end =“lead “?”ZI <?in-line-formula description =“In-line Formulas”end =“tail”?>其中W选自CF 3,氢和溴; Z选自氢,碘和氯。 任选地在催化剂存在下进一步任选地在空气存在下,在足以产生三氟甲基碘的温度,压力和一段时间内进行接触步骤。
    • 18. 发明授权
    • One-step synthesis of CF3-1
    • 一步合成CF3-1
    • US07132578B1
    • 2006-11-07
    • US11181311
    • 2005-07-14
    • Sudip MukhopadhyayHsueh Sung Tung
    • Sudip MukhopadhyayHsueh Sung Tung
    • C07C17/00
    • C07C17/204C07C17/093C07C17/10C07C17/158C07C17/361C07C19/07
    • A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula: IFn wherein W can be H, Br, Cl, COOH, COCl, COOCH3, COOC2H5, COCH3, COPh, CF3, Si(CH3)3, SPh, SCH3, SSCF3, SSPh, SSCH3, or SO2Cl, wherein n is 1, 3, 5, or 7, and wherein the step of contacting is carried out, at a temperature, pressure and for a length of time sufficient to produce trifluoromethyl iodide. The contacting step can be carried out in the presence or absence of a catalyst and the contacting step can be carried out in the presence or absence of air.
    • 提供了制备三氟甲基碘的方法。 该方法包括在反应器中接触由下式表示的化合物的步骤:<?in-line-formula description =“In-line Formulas”end =“lead”?> CF 3 -W <?in-line-formula description =“In-line Formulas”end =“tail”?>和由下式表示的化合物:<?in-line-formula description =“In-line Formulas”end =“lead” 其中W可以是H,Br,Cl,COOH,COCl,COOCH CO 3,H 3,COCH 3,CO 2,CO 3,SO 3, 3,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个,3个, SUB或SO 2 Cl,其中n为1,3,5或7,并且其中接触步骤在温度,压力和时间长度下进行,足以 产生三氟甲基碘。 接触步骤可以在催化剂存在或不存在下进行,并且接触步骤可以在空气存在或不存在下进行。