Process for producing unsaturated aliphatic acids
    2.
    发明授权
    Process for producing unsaturated aliphatic acids 失效
    生产不饱和脂肪酸的方法

    公开(公告)号:US4223161A

    公开(公告)日:1980-09-16

    申请号:US783137

    申请日:1977-03-31

    CPC分类号: B01J23/30 C07C51/252

    摘要: The present invention relates to a process for the production of unsaturated aliphatic acids and the catalyst therefor, by the vapor phase oxidation of the corresponding unsaturated aliphatic aldehydes with molecular oxygen, optionally in the presence of steam, in the presence of an oxidation catalyst consisting of the oxides of the elements molybdenum, vanadium, tungsten and lanthanum, and optionally one or more of the oxides of the elements manganese, iron, copper, aluminum, cobalt, nickel, phosphorus, zinc, bismuth, silver, cadmium, niobium, arsenic, chromium, the alkali and the alkaline earth elements.

    摘要翻译: 本发明涉及一种制备不饱和脂族酸及其催化剂的方法,通过相应的不饱和脂族醛与分子氧的气相氧化,任选地在蒸汽存在下,在氧化催化剂的存在下,在由 元素钼,钒,钨和镧的氧化物,以及锰,铁,铜,铝,钴,镍,磷,锌,铋,银,镉,铌,砷, 铬,碱和碱土元素。

    Production of maleic anhydride from four-carbon hydrocarbons using
catalysts prepared by water reflux techniques
    5.
    发明授权
    Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by water reflux techniques 失效
    使用通过水回流技术制备的催化剂从四碳烃生产马来酸酐

    公开(公告)号:US4218382A

    公开(公告)日:1980-08-19

    申请号:US954056

    申请日:1978-10-23

    摘要: Exceptionally reproducible catalysts comprising vanadium and phosphorus are obtained when the catalysts are prepared in an aqueous oxide slurry comprising vanadium, phosphorus and a mineral acid-free, inorganic reducing agent, which is capable of reducing the vanadium in the catalyst to a valence state below +5. Additional promoters may be selected from the group of elements of Group IB through VIB, VIII, lanthanides, actinides, and IA through VIA, excluding the elements H, N, O, C, Fr, Ra, and Po. Catalysts of particular interest consist of the elements vanadium, phosphorus, uranium and oxygen, or vanadium, phosphorus, oxygen and uranium in combination with at least one element selected from the group consisting of Ta, Ce, Cr, Mn, Co, Cu, Sb, Fe, Bi, W, Mo, Hf, Zr, Th, S, an alkali metal and an alkaline earth metal.

    摘要翻译: 当催化剂在包含钒,磷和无机酸的无机还原剂的水性氧化物浆料中制备时,可获得包含钒和磷的特别重复的催化剂,其能够将催化剂中的钒还原成低于+ 5。 除了元素H,N,O,C,Fr,Ra和Po之外,额外的启动子可以通过VIB,VIII,镧系元素,锕系元素和IA通过VIA选自IB族的元素组。 特别感兴趣的催化剂包括元素钒,磷,铀和氧,或钒,磷,氧和铀与选自Ta,Ce,Cr,Mn,Co,Cu,Sb中的至少一种元素组合 ,Fe,Bi,W,Mo,Hf,Zr,Th,S,碱金属和碱土金属。

    Production of maleic anhydride from four-carbon hydrocarbons using
catalysts prepared by water reflux techniques
    8.
    发明授权
    Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by water reflux techniques 失效
    使用通过水回流技术制备的催化剂从四碳烃生产马来酸酐

    公开(公告)号:US4219484A

    公开(公告)日:1980-08-26

    申请号:US953660

    申请日:1978-10-23

    摘要: Exceptionally reproducible catalysts comprising vanadium and phosphorus are obtained when the catalysts are prepared in an aqueous oxide slurry comprising vanadium, phosphorus and a mineral acid-free, inorganic reducing agent, which is capable of reducing the vanadium in the catalyst to a valence state below +5. Additional promoters may be selected from the group of elements of Group IB through VIB, VIII, lanthanides, actinides, and IA through VIA, excluding the elements H, N, O, C, Fr, Ra, and Po. Catalysts of particular interest consist of the elements vanadium, phosphorus, oxygen, and optionally at least one of Ta, Ce, Cr, Mn, Co, S, Cu, Sb, Fe, Bi, W, Mo, Hf, Zr, Th, an alkali metal and an alkaline earth metal.

    摘要翻译: 当催化剂在包含钒,磷和无机酸的无机还原剂的水性氧化物浆料中制备时,可获得包含钒和磷的特别重复的催化剂,其能够将催化剂中的钒还原成低于+ 5。 除了元素H,N,O,C,Fr,Ra和Po之外,额外的启动子可以通过VIB,VIII,镧系元素,锕系元素和IA通过VIA选自IB族的元素组。 特别感兴趣的催化剂由元素钒,磷,氧和任选的Ta,Ce,Cr,Mn,Co,S,Cu,Sb,Fe,Bi,W,Mo,Hf,Zr,Th, 碱金属和碱土金属。

    Preparation of unsaturated acids
    9.
    发明授权
    Preparation of unsaturated acids 失效
    不饱和酸的制备

    公开(公告)号:US4163862A

    公开(公告)日:1979-08-07

    申请号:US653853

    申请日:1976-01-30

    摘要: The present invention is a catalyst composition consisting of oxides or oxide complexes that contains catalytically significant amounts of cerium, tungsten, vanadium and molybdenum plus optionally one or more of Fe, Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal, an alkaline earth metal, lanthanum or an element of the lanthanoid series. These catalysts are especially useful for producing acrylic acid from acrolein and for producing methacrylic acid from methacrolein.

    摘要翻译: 本发明是由氧化物或氧化物络合物组成的催化剂组合物,其含有催化量显着的铈,钨,钒和钼以及任选的一种或多种Fe,Co,Ni,Zn,Cu,Mg,Mn,Bi,Ti, Zr,Sn,P,碱金属,碱土金属,镧或镧系元素的元素。 这些催化剂特别适用于从丙烯醛生产丙烯酸和从甲基丙烯醛生产甲基丙烯酸。