АММОКСИДИРОВАНИЕ СМЕСИ КЕТОНОВ В АЦЕТОНИТРИЛ И ЦИАНИД ВОДОРОДА

    公开(公告)号:EA004864B1

    公开(公告)日:2004-08-26

    申请号:EA200101163

    申请日:2000-05-16

    Abstract: Визобретениипредложенспособувеличениявыходакак HCN, таки ацетонитрила, полученныхприпроизводствеакрилонитрила, которыйпредусматриваетвведениеуглеводорода, выбранногоизгруппы, вкоторуювходятпропилени пропан, неочищенногокетонаи/илисмесипоменьшеймередвухкетонов, аммиакаи воздухав зонуреакции, котораясодержиткатализатораммоксидирования, проведениереакциимеждууглеводородом, кетоном, аммиакоми кислородомнадуказаннымкатализаторомприповышеннойтемпературе, чтопозволяетполучитьакрилонитрил, цианидводородаи ацетонитрил, споследующейрекуперациейакрилонитрила, ацетонитрилаи цианидаводородаизреактора.

    92.
    发明专利
    未知

    公开(公告)号:TR200103384T2

    公开(公告)日:2002-04-22

    申请号:TR200103384

    申请日:2000-05-16

    Abstract: A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ketones, ammonia and air, into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, the ketone, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

    Improved catalyst for the manufacture of acrylonitrile

    公开(公告)号:AU7813601A

    公开(公告)日:2002-02-25

    申请号:AU7813601

    申请日:2001-08-02

    Abstract: 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: A a B b C c Fe d Bi e Co f Ce g Sb h Mo m O x 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.

    IMPROVED CATALYST FOR THE MANUFACTURE OF ACRYLONITRILE

    公开(公告)号:CA2417987A1

    公开(公告)日:2002-02-21

    申请号:CA2417987

    申请日:2001-08-02

    Abstract: 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 t o 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 a nd 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 olef in selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.

    96.
    发明专利
    未知

    公开(公告)号:ES2125954T3

    公开(公告)日:1999-03-16

    申请号:ES93307073

    申请日:1993-09-08

    Abstract: Disclosed is a method for ammoxidizing C3 to C5 mono-olefins to a,b-mono-unsaturated acyclic nitriles having 3 to 5 carbon atoms and HCN by introducing such mono-olefins molecular oxygen and ammonia into a reaction zone into vapor phase contact with a solid ammoxidation catalyst, wherein the mol ratio of introduced molecular oxygen and ammonia to said introduced mono-olefin is at least 1.5 and 1.0, respectively, wherein said catalyst contains the elements and proportions indicated by the empirical formula: V1SbaMmNnOx where a = 0.5 to 2 M = one or more of: Sn, Ti, Fe, and Ga m = 0.05 to 3, usually at least 0.1 and at most 1 N = one or more of: W, Bi, Mo, Li, Mg, P, Zn, Mn, Te, Ge, Nb, Zr, Cr, Al, Cu, Ce, B n = 0.0 to 0.5, and wherein the preparation of the catalyst includes contacting in an aqueous dispersion a vanadium compound and an antimony compound while said vanadium is in solution.

    97.
    发明专利
    未知

    公开(公告)号:DE69322383D1

    公开(公告)日:1999-01-14

    申请号:DE69322383

    申请日:1993-09-08

    Abstract: Disclosed is a method for ammoxidizing C3 to C5 mono-olefins to a,b-mono-unsaturated acyclic nitriles having 3 to 5 carbon atoms and HCN by introducing such mono-olefins molecular oxygen and ammonia into a reaction zone into vapor phase contact with a solid ammoxidation catalyst, wherein the mol ratio of introduced molecular oxygen and ammonia to said introduced mono-olefin is at least 1.5 and 1.0, respectively, wherein said catalyst contains the elements and proportions indicated by the empirical formula: V1SbaMmNnOx where a = 0.5 to 2 M = one or more of: Sn, Ti, Fe, and Ga m = 0.05 to 3, usually at least 0.1 and at most 1 N = one or more of: W, Bi, Mo, Li, Mg, P, Zn, Mn, Te, Ge, Nb, Zr, Cr, Al, Cu, Ce, B n = 0.0 to 0.5, and wherein the preparation of the catalyst includes contacting in an aqueous dispersion a vanadium compound and an antimony compound while said vanadium is in solution.

    99.
    发明专利
    未知

    公开(公告)号:DE69011495T3

    公开(公告)日:1998-07-16

    申请号:DE69011495

    申请日:1990-12-13

    Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.

    100.
    发明专利
    未知

    公开(公告)号:ES2057448T5

    公开(公告)日:1998-07-01

    申请号:ES90313574

    申请日:1990-12-13

    Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.

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