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
    • 3. 发明申请
    • In situ modification of molybdenum-based catalysts
    • 钼基催化剂的原位改性
    • US20070260085A1
    • 2007-11-08
    • US11415565
    • 2006-05-02
    • Michael SeelyChristos Paparizos
    • Michael SeelyChristos Paparizos
    • C07C253/34
    • C07C253/26B01J23/002B01J23/28B01J23/8876B01J35/0006B01J2523/00Y02P20/52B01J2523/11B01J2523/68B01J2523/13B01J2523/15B01J2523/14B01J2523/12C07C255/08
    • A process for the conversion of a hydrocarbon selected from the group consisting of propylene, isobutylene, propane, isobutane or mixtures thereof, to acrylonitrile, methacrylonitrile, or mixtures thereof, the process comprising the step of reacting in the vapor phase at an elevated temperature and pressure said hydrocarbon with a molecular oxygen-containing gas and ammonia, in the presence of a molybdenum-based ammoxidation catalyst and a catalyst modifier, wherein said catalyst modifier comprises a molybdate or a polymolybdate of at least one element M selected from the group consisting of cesium, rubidium, potassium, sodium, thallium, lithium, nickel, cobalt, iron, chromium, copper, magnesium, manganese, cerium and phosporus, and wherein the ratio of the M elements to Mo in the molybdate or polymolybdate is greater than the ratio for these M elements to Mo in the molybdenum-based catalyst. The catalyst modifier is useful in modifying the performance of molybdenum-based catalyst and inhibiting molybdenum oxide loss for such catalysts.
    • 一种将选自丙烯,异丁烯,丙烷,异丁烷或其混合物的烃转化为丙烯腈,甲基丙烯腈或其混合物的方法,该方法包括在升高的温度下在气相中反应和 在钼基氨氧化催化剂和催化剂改性剂的存在下,用含分子氧的气体和氨压力所述烃,其中所述催化剂改性剂包含选自以下的至少一种元素M的钼酸盐或多钼酸盐: 铯,铷,钾,钠,铊,锂,镍,钴,铁,铬,铜,镁,锰,铈和磷,并且其中钼酸盐或多钼酸盐中的M元素与Mo的比例大于 对于这些M元素在钼基催化剂中的Mo。 催化剂改性剂可用于改性钼基催化剂的性能并抑制这种催化剂的氧化钼损失。
    • 8. 发明授权
    • Methods for treatment of phosphomolybdic acid based catalysts during
reactor shutdown
    • 反应堆停堆期间处理磷钼酸催化剂的方法
    • US4471061A
    • 1984-09-11
    • US497691
    • 1983-05-24
    • Wilfrid G. ShawChristos PaparizosDiane G. Farrington
    • Wilfrid G. ShawChristos PaparizosDiane G. Farrington
    • B01J23/92B01J23/94B01J27/28C07C57/055C07C51/25C07C51/377
    • B01J23/92B01J23/94B01J27/285
    • The present invention relates to a method for maintaining the activity of PMA based catalysts during reactor shutdown by flushing the reactor with an oxide of nitrogen gas at a temperature of from about 150.degree. C. to about 370.degree. C. The method can be employed in the reactor by terminating the feed of hydrocarbon to the reactor and then flushing the reactor. The method can be employed to treat PMA based catalysts having the general formula Mo.sub.x P.sub.y A.sub.a B.sub.b C.sub.c D.sub.d E.sub.e O.sub.z wherein A is selected from the group consisting of ammonium, cesium, potassium, rubidium and thallium; B is selected from the group consisting of copper and vanadium; C is selected from the group consisting of antimony, arsenic, bismuth and tellurium; D is palladium; E is aluminum, barium, calcium, cerium, chromium, cobalt, iron, magnesium, manganese, nickel tantalum, titanium, tungsten, zinc, zirconium, chlorine and/or bromine; x can be 3 to 15, y can be 1 to 1.5; a can be 0.1 to 3; b can be 0.1 to 3; c can be 0 to 2; d can be 0 to 2; e can be 0 to 4 and z is a number necessary to satisfy the valence of all the other elements.
    • 本发明涉及一种在反应器关闭期间通过在约150℃至约370℃的温度下用氮氧化物冲洗反应器来维持PMA基催化剂的活性的方法。该方法可用于 该反应器通过将烃的进料终止于反应器,然后冲洗反应器。 该方法可用于处理具有通式MoxPyAbBCcDdEeOz的PMA基催化剂,其中A选自铵,铯,钾,铷和铊; B选自铜和钒; C选自锑,砷,铋和碲; D是钯; E是铝,钡,钙,铈,铬,钴,铁,镁,锰,镍钽,钛,钨,锌,锆,氯和/或溴; x可以是3到15,y可以是1到1.5; a可以是0.1到3; b可以为0.1〜3; c可以是0到2; d可以是0到2; e可以是0至4,并且z是满足所有其它元素的化合价所必需的数。
    • 9. 发明授权
    • Catalyst for the manufacture of acrylonitrile
    • 用于制造丙烯腈的催化剂
    • US06458742B1
    • 2002-10-01
    • US09641380
    • 2000-08-17
    • Christos PaparizosMichael J. SeelyMaria S. FriedrichDev D. Suresh
    • Christos PaparizosMichael J. SeelyMaria S. FriedrichDev D. Suresh
    • B01J2310
    • C07C253/26B01J23/8876Y02P20/52C07C255/08
    • A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMomOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, In, Mn, Ca, W, or mixtures thereof B is at least one of Li, Na, K, Rb, Cs, Tl, or mixtures thereof C is least one of Ni, Mg or mixtures thereof a is 0 to 4.0 b is 0.01 to 1.5 c is 1.0 to 10.0 d is 0.1 to 5.0 e is 0.1 to 2.0 f is 0.1 to 10.0 g is 0.1 to 2.0 h is 0.1 to 2.0 m is 12.0 to 18.0 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.
    • 一种催化剂组合物,其包含铁,铋,钼,钴,铈,锑,镍或镁中的至少一种和锂,钠,钾,铷或铊中的至少一种的催化氧化物的络合物,其特征在于 以下经验式:其中A为Cr,P,Sn,Te,B,Ge,Zn,In,Mn,Ca,W或其混合物中的至少一种B为Li,Na,K,Rb,Cs, T1或其混合物C是Ni,Mg或其混合物中的至少一种,a为0〜4.0b为0.01〜1.5c为1.0〜10.0d,0.1〜5.0e为0.1〜2.0f,0.1〜10.0g为0.1〜2.0h 0.1至2.0μm为12.0至18.0,x为由其它元素的化合价要求确定的数。催化剂可用于将选自丙烯,异丁烯或其混合物的烯烃的氨氧化反应, 丙烯腈,甲基丙烯腈及其混合物。