Method for the preparation of methacrylic acid
    1.
    发明授权
    Method for the preparation of methacrylic acid 失效
    制备甲基丙烯酸的方法

    公开(公告)号:US4045478A

    公开(公告)日:1977-08-30

    申请号:US658909

    申请日:1976-02-18

    摘要: Methacrylic acid can be produced from methacrolein with a high reaction percentage of methacrolein and a high selectivity percentage of methacrylic acid, by bringing a reaction feed containing methacrolein and molecular oxygen into contact with an oxidation catalyst at a temperature of 200 to 450.degree. C, the oxidation catalyst comprising oxides of molybdenum, phosphorus, calcium, at least one element selected from the group consisting of arsenic, bismuth, tin, titanium, tantalum and boron and, optionally, at least one element selected from the group consisting of antimony, niobium and magnesium.

    摘要翻译: 甲基丙烯酸可以通过甲基丙烯醛的高反应百分率和甲基丙烯酸的高选择性百分比通过使含有甲基丙烯醛和分子氧的反应进料与氧化催化剂在200至450℃的温度下接触来生产, 氧化催化剂,其包含钼,磷,钙的氧化物,选自砷,铋,锡,钛,钽和硼中的至少一种元素,以及任选的至少一种选自锑,铌和 镁。

    Process for producing methacrolein
    2.
    发明授权
    Process for producing methacrolein 失效
    生产异丁烯醛的方法

    公开(公告)号:US4217309A

    公开(公告)日:1980-08-12

    申请号:US15903

    申请日:1979-02-28

    摘要: Methacrolein is produced in a high yield by catalytically oxidizing isobutylene at a temperature of from 250.degree. to 500.degree. C. by using a catalyst represented by the formula:Mo.sub.a Co.sub.b Fe.sub.c Bi.sub.d Cs.sub.e X.sub.f Y.sub.g O.sub.hwherein X is either both vanadium and palladium, Y is at least one member selected from titanium, nickel, tin and zirconium, a=12, b=2-12, c=0.5-7, d=0.1-5, e=0.0005-0.5, f=0.01-2, g=0-5 and h is a positive number proportional to the number of oxygen atoms satisfying the average valency of the metal atoms stated in the formula, which catalyst has a high resistance to compression and abrasion and exhibits a high catalytic efficiency, mechanical strength and durability.

    摘要翻译: 通过使用由式MoaCobFecBidCseXfYgOh表示的催化剂,在250℃至500℃的温度下催化氧化异丁烯,以高产率生产甲基丙烯醛,其中X既是钒又是钯,Y是至少一种选自 钛,镍,锡和锆,a = 12,b = 2-12,c = 0.5-7,d = 0.1-5,e = 0.0005-0.5,f = 0.01-2,g = 0-5,h为 与氧原子数成比例的正数,其满足式中金属原子的平均价,该催化剂具有高抗压缩和耐磨性,并且具有高催化效率,机械强度和耐久性。

    Catalytic oxidation of isobutylene
    5.
    发明授权
    Catalytic oxidation of isobutylene 失效
    异丁烯的催化氧化

    公开(公告)号:US4171328A

    公开(公告)日:1979-10-16

    申请号:US917793

    申请日:1978-06-22

    摘要: Isobutylene is catalytically oxidized in the vapor phase with molecular oxygen to form methacrolein. The catalyst used consists essentially of metal oxides and is represented by the formula:Mo.sub.a Bi.sub.b Fe.sub.c Co.sub.d Zr.sub.e X.sub.f Ti.sub.g O.sub.hwherein Mo=molybdenum, Bi=bismuth, Fe=iron, Co=cobalt, Zr=zirconium, X=calcium and/or zinc, Ti=titanium and O=oxygen, and the subscripts indicating the atomic ratios of the respective metals to bismuth are: a=5-20, b=1, c=0.2-5, d=1-10, e=0.01-2, f=0.01-2, and g=0.01-1. The catalyst exhibits little or no reduction in mechanical strength during the oxidation reaction and results in an enhanced yield of methacrolein.

    摘要翻译: 异丁烯在气相中用分子氧催化氧化形成甲基丙烯醛。 所使用的催化剂基本上由金属氧化物组成,并由下式表示:MoaBibFecCodZreXfTigOh WHEREIN Mo =钼,Bi =铋,Fe =铁,Co =钴,Zr =锆,X =钙和/或锌,Ti =钛和O =氧,表示各金属与铋的原子比的下标为:a = 5-20,b = 1,c = 0.2-5,d = 1-10,e = 0.01-2,f = 2,g = 0.01-1。 该催化剂在氧化反应期间几乎没有或没有降低机械强度,并导致甲基丙烯醛的收率提高。

    Ammoxidation catalyst for the production of acrylonitrile from propylene
and process for producing the same
    6.
    发明授权
    Ammoxidation catalyst for the production of acrylonitrile from propylene and process for producing the same 失效
    用于从丙烯生产丙烯腈的氨氧化催化剂及其制备方法

    公开(公告)号:US4290922A

    公开(公告)日:1981-09-22

    申请号:US134053

    申请日:1980-03-26

    摘要: A catalyst for the ammoxidation of propylene to prepare acrylonitrile with a high yield thereof comprising an oxide composition of the empirical formula (I)Mo.sub.a Co.sub.b Ni.sub.c Fe.sub.d Bi.sub.e V.sub.f Ca.sub.g K.sub.h X.sub.i Si.sub.j O.sub.k (I)wherein X is zirconium and/or chromium, the subscripts a, b, c, d, e, f, g, h, i and j respectively denote the number of the respective atoms of the elements, when a=10, b=0 to 8, c=0 to 8, (b+c)=2 to 10, d=0.3 to 7, e=0.01 to 3, f=0.01 to 2, g=0.01 to 5, h=0.05 to 0.5, i=0 to 2, j=10 to 50, and the subscript k denotes the number of oxygen atoms which satisfies the average valency of the elements other than oxygen and the ratio a:k being in a range of 10:30 to 80, which catalyst is prepared by preparing an aqueous slurry containing respective element-containing compounds, by spray drying the aqueous slurry to prepare a dried solid precursory catalyst and, finally, by calcining the precursory catalyst as a temperature of from 500.degree. to 750.degree. C. to provide an activated catalyst.

    摘要翻译: 用于丙烯氨氧化以制备丙烯腈的高产率的催化剂,其包含经验式(I)的氧化物组合物,其中X是锆和/或铬,下标a,b,c,d,e的MoaCobNicFedBieVfCagKhXiSijOk(I) 当a = 10,b = 0〜8,c = 0〜8,(b + c)= 2〜10时,f,g,h,i,j分别表示各元素的原子数,d = 0.3〜7,e = 0.01〜3,f = 0.01〜2,g = 0.01〜5,h = 0.05〜0.5,i = 0〜2,j = 10〜50,下标k表示氧数 原子,其满足除氧之外的元素的平均化合价,a:k的比例在10:30至80的范围内,该催化剂通过制备含有各含元素化合物的含水浆料,通过喷雾干燥水溶液 浆料以制备干燥的固体前体催化剂,最后通过在500℃至750℃的温度下煅烧前体催化剂以提供活化的催化剂。

    Method for the catalytical preparation of acrylonitrile
    7.
    发明授权
    Method for the catalytical preparation of acrylonitrile 失效
    丙烯腈催化制备方法

    公开(公告)号:US4070390A

    公开(公告)日:1978-01-24

    申请号:US732361

    申请日:1976-10-14

    摘要: Acrylonitrile can be produced in a high yield by the catalytical ammoxidation of propylene at an elevated temperature, preferably of 330.degree. to 470.degree. C, in the presence of a new type of catalyst consisting of an oxide composition of the empirical formula: Mo.sub.a Co.sub.b Fe.sub.c Bi.sub.d X.sub.e O.sub.f wherein X denotes at least one atom of an element selected from vanadium and tellurium and wherein the ratio a:b:c:d:e:f is in a range of 10:3 to 10:1 to 7:0.1 to 0.7:0.01 to 1:34.6 to 54.1, said catalyst being prepared by providing an aqueous mixture containing molybdenum-, cobalt- and iron-containing compounds, bismuth-containing compound, and vanadium-or tellurium-containing compound, converting the aqueous mixture into a dried solid mixture and calcining the solid mixture at a temperature of at least 500.degree. C.

    摘要翻译: 丙烯腈可以通过在升高的温度下,优选在330℃至470℃的丙烯的催化氨氧化反应,在新型催化剂的存在下,由经验式的氧化物组合物:MoaCobFecBidXeOf,其中X 表示选自钒和碲中的元素的至少一个原子,其中a:b:c:d:e:f的比率在10:3至10:1至7:0.1至0.7:0.01至1的范围内 :34.6至54.1,所述催化剂通过提供含有含钼,钴和铁的化合物,含铋化合物和含钒或碲化合物的水性混合物制备,将含水混合物转化成干燥的固体混合物, 在至少500℃的温度下煅烧固体混合物

    Catalytic oxidative process for producing maleic anhydride
    8.
    发明授权
    Catalytic oxidative process for producing maleic anhydride 失效
    用于生产马来酸酐的催化氧化方法

    公开(公告)号:US4110350A

    公开(公告)日:1978-08-29

    申请号:US816916

    申请日:1977-07-19

    摘要: Unsaturated hydrocarbons having 4 to 6 carbon atoms are catalytically oxidized into maleic anhydride by using a catalyst, which consists essentially of oxides of (A) vanadium, (B) phosphorus, (C) titanium and (D) optionally at least one element selected from sodium, calcium, magnesium, iron, zirconium, boron, manganese, silver and molybdenum in the atomic ratios defined by the following formulaVP.sub.a Ti.sub.b X.sub.c O.sub.dwherein X is the element (D) set forth above and a=1.0 to 5.0, b=2.0 to 12.0 and c=0 to 1.0, and which catalyst is prepared by calcining a mixture of a vanadium-containing compound and titanium dioxide at a temperature of 650.degree. C. to 1,500.degree. C., incorporating into the mixture a phosphorus-containing compound and optionally the element "X"-containing compound and, then, heating the resulting mixture.

    摘要翻译: 具有4-6个碳原子的不饱和烃通过使用催化剂催化氧化成马来酸酐,所述催化剂基本上由(A)钒,(B)磷,(C)钛和(D​​)的氧化物组成,任选地至少一种选自 钠,钙,镁,铁,锆,硼,锰,银和钼,其原子比由下列化学式定义:VPaTibXcOd WHEREIN X是上述元素(D),a = 1.0至5.0,b = 2.0至12.0 并且c = 0至1.0,并且通过在650℃至1500℃的温度下煅烧含钒化合物和二氧化钛的混合物来制备该催化剂,将含磷化合物和任选地 含有元素“X”的化合物,然后加热所得混合物。

    Process for the catalytical preparation of acrylonitrile
    10.
    发明授权
    Process for the catalytical preparation of acrylonitrile 失效
    丙烯腈催化制备方法

    公开(公告)号:US4278614A

    公开(公告)日:1981-07-14

    申请号:US74232

    申请日:1979-09-10

    摘要: Acrylonitrile is produced from propylene in an excellent percent conversion of propylene, percent selectivity to acrylonitrile and percent yield of acrylonitrile, by bringing, at an elevated temperature, a reaction feed containing propylene, molecular oxygen and ammonia, each in gas phase, into contact with a catalyst consisting essentially of an oxide composition of the empirical formula:Mo.sub.a Co.sub.b Ni.sub.c Fe.sub.d Bi.sub.e X.sub.d Ti.sub.g O.sub.hwherein X represents at least one atom of an element selected from vanadium and tellurium; the subscripts a, b, c, d, e, f and g respectively denote the numbers of the respective atoms of the elements, the ratio a:b:c:d:e:f:g being in the range of 10:0 to 10:0 to 10:1 to 7:0.08 to 1.1:0.01 to 1:1 to 15, and the ratio of a to the sum of b and c being in a range of 10:3 to 10, and; the subscript h represents the number of oxygen atoms which satisfies the average valency of the elements, the ratio a:h being in a range of 10:36.7 to 84.1.

    摘要翻译: 通过在高温下将含有丙烯,分子氧和氨的反应进料在气相中与气相接触,丙烯以丙烯的百分比转化率,丙烯腈的选择性百分比和丙烯腈的百分比产率由丙烯生产。 基本上由以下经验式的氧化物组合物组成的催化剂:MoaCobNicFedBieXdTigOh,其中X表示选自钒和碲的元素的至少一个原子; 下标a,b,c,d,e,f和g分别表示元素的各个原子的数量,比例a:b:c:d:e:f:g在10:0的范围内 至10:0至10:1至7:0.08至1.1:0.01至1:1至15,并且b与c之和的比例在10:3至10的范围内; 下标h表示满足元素平均化合价的氧原子数,a:h在10:36.7〜84.1的范围内。