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    • 82. 发明申请
    • Catalyst promoters for producing trifluoroiodomethane and pentafluoroiodoethane
    • 用于生产三氟碘甲烷和五氟碘乙烷的催化剂促进剂
    • US20080108854A1
    • 2008-05-08
    • US11901672
    • 2007-09-18
    • Shuwu YangHsueh Sung Tung
    • Shuwu YangHsueh Sung Tung
    • C07C17/00C07C19/08
    • C07C19/16B01J23/04B01J23/06B01J23/10B01J23/22B01J23/24B01J23/78C07C17/093C07C17/10C07C17/158C07C17/204C09K5/044
    • The present invention provides a process for the preparation of a fluoroiodoalkane compound represented by the formula CF3(CF2)n—I, wherein n is 0 or 1. The process includes the step of contacting: (i) a compound represented by the formula CF3(CF2)n—Y, wherein Y is selected from H, Cl, Br, and COOH and n is 0 or 1; (ii) a source of iodine; (iii) an alkali or alkaline earth metal salt catalyst supported on a carrier; and (iv) a catalyst promoter for the alkali or alkaline earth metal salt catalyst. The catalyst promoter includes at least one element selected from a transition metal element, a rare earth metal element, a main group element other than the alkali or alkaline earth metal element, any salts thereof, and any combinations thereof. The contacting is carried out at a temperature and pressure and for a length of time sufficient to produce the fluoroiodoalkane compound. The contacting may be carried out in the presence or absence of a solvent and in the presence or absence of oxygen.
    • 本发明提供一种制备由式CF 3(CF 2)n I-I表示的氟代碘代烷烃化合物的方法,其中n 该方法包括使以下步骤:(i)由式CF 3(CF 2)n表示的化合物 -Y,其中Y选自H,Cl,Br和COOH,n为0或1; (ii)碘源; (iii)负载在载体上的碱金属或碱土金属盐催化剂; 和(iv)碱金属或碱土金属盐催化剂的催化剂促进剂。 催化剂促进剂包括选自过渡金属元素,稀土金属元素,除碱金属或碱土金属元素以外的主要基团的元素中的至少一种元素,它们的任何盐及其任何组合。 接触在温度和压力下进行足够长的时间以产生氟代碘代烷烃化合物。 接触可以在存在或不存在溶剂的情况下以及在存在或不存在氧的情况下进行。
    • 83. 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。
    • 85. 发明授权
    • Purification of 1,1,1,3,3-pentafluorobutane
    • 1,1,1,3,3-五氟丁烷的纯化
    • US06702929B2
    • 2004-03-09
    • US10337836
    • 2003-01-07
    • Stephen Frederic YatesHsueh Sung Tung
    • Stephen Frederic YatesHsueh Sung Tung
    • C07C1700
    • C07C17/395C07C19/08
    • In the synthesis of 1,1,1,3,3-pentafluorobutane (R-365mfc), a mixture of R-365mfc and the impurity 1,1,1,3-tetrafluoro-2-butene (R-1354mzy) is purified and R-1354mzy is removed from the mixture by contacting the mixture with 1-5 mols of chlorine for each mol of R-1354mzy in the presence of ultraviolet light having a wavelength between about 300 to 400 nm which provides at least 0.02 watts-hour/kg of the mixture. The R-1354mzy is reduced to below 10 wt. ppm as it is converted to 2,3-dichloro-1,1,1,3-tetrafluorobutane (R-354) or other butane containing more chlorine and having a higher boiling point than R-365mfc. The butane(s) may be separated more easily from R-365mfc. The photochlorination is effected in a manner such that at least about 96 weight percent of the starting amount of R-365mfc is maintained in the mixture.
    • 在1,1,1,3,3-五氟丁烷(R-365mfc)的合成中,纯化R-365mfc和杂质1,1,1,3-四氟-2-丁烯(R-1354mzy)的混合物 并且在波长在约300至400nm之间的紫外光存在下,将混合物与1-5摩尔氯接触,每摩尔R-1354毫摩尔,从混合物中除去R-1354mzy,该紫外线提供至少0.02瓦时 / kg混合物。 将R-1354mzy还原成低于10wt。 ppm,因为它被转化为2,3-二氯-1,1,1,3-四氟丁烷(R-354)或其它含有更多氯且沸点高于R-365mfc的丁烷。 丁烷可能更容易从R-365mfc分离出来。 光氯化以这样的方式进行,使得至少约96重量%的起始量的R-365mfc保持在混合物中。