• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Oxidation and ammoxidation caytalysts are disclosed which have the empirical formula SbaVbTicOx, wherein a is at least 6, b is 1, and c is a number such that the ratio c/a is at least 0.5. and x is a number taken to satisfy the valence requirements of the Sb, V and Ti present in the catalyst. Such catalysts may be optionally supported on conventional supports, or may be unsupported. They can be made by drying a slurry of Sb, V and Ti compounds in the desired atomic ratio to form a catalyst precursor that is then calcined. Their use in oxidation and ammoxidation of olefines, e.g. production of acrylonitrile from propylene, is described.
    公开号:SU1032993A3
    申请号:SU792706556
    申请日:1979-01-02
    公开日:1983-07-30
    发明作者:Вэрчил Вайс Кеннес
    申请人:Монсанто Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to catalysts for the oxidation and oxidative ammonolysis of olefins, in particular, propylene. A known catalyst 13 for the oxidation and oxidative ammonolysis of propylene, containing the oxide compounds of antimony, tin, copper, iron and a metal selected from the group including beryllium, magnesium, calcium, zinc, strontium, cadmium, barium, and the composition of which corresponds to the empirical formula, cu, o, eo, and V The described catalyst does not have sufficiently high activity; the yield of acrylonitrile is 6Q, 2-6k, 2%. The closest to the proposed one is a catalyst for the oxidation and oxidative ammonolysis of propylene containing oxide compounds of antimony, vanadium, and also a metal selected from the group including tin, iron, cobalt, titanium, whose composition corresponds to the empirical formula% 1- 0.5 -, “,,. -, - l /, i-3 and, where the number of oxygen atoms is necessary to saturate the valence of the incoming elements 1,2 However, in a known catalyst, the activity and selectivity are not high enough — the yield, for example, of acrylonitrile is 5b, with a large amount not desired. 1.x oxygen-containing by-products. The purpose of the invention is to increase the reactivity and selectivity of the catalyst. This goal is achieved by the fact that 4to in a catalyst for the oxidation and oxidative ammonolysis of propylene, containing oxides of antimony, vanadium and titanium, the composition corresponds to the following empirical formula:
    ,
    b - 36
    but
    de
    1
    9-5, with C / q 1-6
    with y. the number of oxygen atoms required to saturate the valence of the incoming elements. The proposed catalyst is obtained by mixing oxide compounds of antimony, vanadium and titanium. The resulting slurry is heated to remove water, and then dried and calcined in air at 500-875 0. The catalyst may be supported on a carrier. PRI and MER 1. Obtaining a catalyst composition of Ti jgCxPost 3.98 g. 82 g of V, and 28.77 g of Ti.O in a beaker and mix with 50 ml of distilled water. The slurry is well mixed to ensure thorough mixing of the suspended solids, and then heated on a hot plate to remove most of the water. The resulting mixture of raw oxides ,. Vanadium and titanium are dried in air overnight at and then calcined in air for 2 hours at 750 Рс. The catalyst thus obtained is placed in a fluidized bed of a reactor having an internal diameter of approximately (see Reaction mixture, volume: 17.50 O, 8.60 propylene, 8.904 N, and the residual fraction of the gels is passed down through the catalyst in an amount of 0.133 ml / s 1 at normal temperature and pressure J of the reacting gas on the s / g of the catalyst to obtain the value of Vi // F (as shown below) 7.5. The reactor is maintained at 85 ° C and pressure of 2.09 kg / cm, absolute, during this time. The passage of the gas stream from the reactor is analyzed after 2 hours.
    Based on these analytical results, the yield of acrylonitrile is achieved, with a selectivity of 7.5% for acrylonitrile and a conversion of propylene to 95.9%.
    In this case, N3V / F means the catalyst weight, g divided by the volumetric flow rate of the reagent, ml / s, measured at normal temperature and pressure. The conversion of propylene (SaN, U oz O O
    starts:
    mole CjHg in the absorbing stream mole CdHfe in the flowing stream. "/ h
    moth SzN absorbent flow
    The selectivity of acrylonitrile (AH) means:. a mole of an AH in the outflowing flow of a molded C &a; Acrylonitrile yield means: the mole of the formed AH ... f. Moles of the feed stream ti p and me ra s 2 - 11. Catalysato; ry without carrier is obtained with the use of SttaO as raw materials. 1 TiOj according to Example 1, including drying in an oven at 130 ° C and roasting at 750 ° C for 2 hours, but with varying amounts of starting materials to obtain catalysts with different ratios of catalytic components of metappe in accordance with the invention.
    Each of these catalysts is placed in a fluidized bed of a peactor, used according to example 1, and the feed stream of example 1 is introduced into the reactor 7.5. The results are shown in Table. 1l In examples 2 - 10, the reaction wire at an absolute pressure of 2.09 kg / cm
    while in example 11 the absolute pressure is 1.18 kg / cm.
    PRI me R s 12 - 2V. To illustrate the use of materials other than% b2.0e. VuO TiO catalysts for the preparation of the proposed catalyst are prepared using the compound shown in Table 1. 2. In all cases, water slurry of raw materials is formed as in example 1 to obtain atomic ratios of Ti 12: 1: 18. The resulting sludges are dried on an oven at 130 ° C and calcined at 2 hours as in example 1.
    In tab. Figure 2 also shows the results of an investigation of these catalysts in a reactor according to Example 1 at a reaction temperature of 8 ° C and an absolute pressure of 2.09 kg / cm and the composition of the feed stream of Example 1.
    Examples 22-26. As catalysts, oxidized 1 propylene is used. Ox catalyst is similar to the catalyst of example 1, in the reactor of example 1. The feed mixture is 18.6 mol. % 0, 9.7 mol. propylene and 71.7 mol. | Gels are fed to the catalyst-containing reaction zone at 7/75 ° C at a pressure of kg / cm and in various amounts of WF.
    Analysis of the flow resulting from the reactor is given in Table. 3
    As follows from the tables above, the proposed catalyst has a higher activity and selectivity — the yield of acrylonitrile increases to 70 {vs. 5b% on a known catalyst) with selectivity up to 76 ..
    T a b l and c. a 1
    t a b l and-c and 31
    权利要求:
    Claims (1)
    [1]
    CATALYZER FOR OXIDATION AND OXIDATION AMMONOLYSIS OF PROPILE = ON containing oxide compounds Sb, V, Ti, characterized in that, in order to increase the activity and selectivity of the catalyst, its composition corresponds to the following empirical formula: SbaVeTi ft Ox, where a - 6 - Zb ;
    B 1;
    C at 9-54, with c / a = 1-6,
    X is the number of oxygen atoms needed to saturate the valency of the incoming elements.
    CO ^ N3
    X x
    1 1032993 1
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    JP2979675B2|1999-11-15|Method for producing phenol and apparatus for producing phenol
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    同族专利:
    公开号 | 公开日
    BR7900010A|1979-08-07|
    MX151396A|1984-11-14|
    EP0003158A2|1979-07-25|
    IT7919008D0|1979-01-02|
    US4162992A|1979-07-31|
    EP0003158A3|1979-08-22|
    JPS6231609B2|1987-07-09|
    DE2962976D1|1982-07-22|
    JPS54100994A|1979-08-09|
    IT1109933B|1985-12-23|
    EP0003158B1|1982-06-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2681421A|1952-03-04|1954-06-15|Gen Electric|Magnetic focusing structure for electron beams|
    US3198751A|1959-02-17|1965-08-03|Distillers Co Yeast Ltd|Stannic oxide-antimony tetroxide catalyst composition|
    GB1051563A|1964-11-26|
    NL134884C|1965-05-18|
    GB1106648A|1965-11-10|1968-03-20|Distillers Co Yeast Ltd|Improvements in or relating to the production of unsaturated aliphatic acids|
    US3338952A|1965-11-15|1967-08-29|Standard Oil Co|Process for the catalytic ammoxidation of olefins to nitriles|
    US3562185A|1967-01-04|1971-02-09|Basf Ag|Oxidation catalysts containing vanadium pentoxide and titanium dioxide|
    CA795810A|1967-04-18|1968-10-01|L. Barclay John|Production of unsaturated aliphatic nitriles|
    US3565829A|1967-10-04|1971-02-23|Basf Ag|Supported catalysts containing vanadium pentoxide and titanium dioxide|
    US3591620A|1967-11-28|1971-07-06|Nitto Chemical Industry Co Ltd|Process for producing acrylonitrile|
    BE641143A|1968-06-05|1964-04-01|
    JPS493962B1|1969-08-02|1974-01-29|
    GB1382733A|1972-10-05|1975-02-05|Bp Chem Int Ltd|Process for the production of acrylonitrile|
    DE2547624C2|1975-10-24|1981-10-08|Basf Ag, 6700 Ludwigshafen|Supported catalysts containing vanadium pentoxide, titanium dioxide, antimony and rubidium|US4388248A|1978-01-03|1983-06-14|Monsanto Company|Ammoxidation processes|
    EP0115646A1|1983-02-08|1984-08-15|Stamicarbon B.V.|Oxidation catalysts and their preparation procedure|
    US4508848A|1983-10-11|1985-04-02|The Standard Oil Company|Catalysts and process of making|
    US4784979A|1987-12-07|1988-11-15|The Standard Oil Company|Catalyst and catalyst precursor containing vanadium and antimony|
    US5235071A|1991-07-10|1993-08-10|Nippon Shokubai Co., Ltd.|Catalyst for producing phthalic anhydride and process by using the same|
    US5258543A|1992-06-26|1993-11-02|The Standard Oil Company|Method for ammoxidation of olefins|
    FR2729651B1|1995-01-24|1997-02-28|
    US5854172A|1997-01-17|1998-12-29|The Standard Oil Company|Preparation of vanadium antimonate based catalysts using SnO2 ·xH2 O|
    US5994259A|1998-07-29|1999-11-30|The Standard Oil Company|Catalysts for the ammoxidation of alkanes|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/866,596|US4162992A|1978-01-03|1978-01-03|Oxidation and ammoxidation catalysts|
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