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公开(公告)号:US4803190A
公开(公告)日:1989-02-07
申请号:US29645
申请日:1987-03-24
申请人: Kohei Sarumaru , Etsuji Yamamoto
发明人: Kohei Sarumaru , Etsuji Yamamoto
IPC分类号: B01J23/881 , B01J23/88 , B01J23/883 , B01J27/192 , B01J37/04 , C07B61/00 , C07C45/00 , C07C45/35 , C07C45/37 , C07C47/22 , C07C51/25 , C07C57/05 , C07C67/00 , C07C253/26 , C07C255/08 , B01J21/00 , B01J23/16 , B01J27/18
CPC分类号: B01J23/8876 , B01J23/002 , B01J27/192 , C07C253/26 , C07C45/35 , C07C45/37 , C07C51/252 , B01J2523/00 , Y02P20/52
摘要: In the production of a Mo-Bi-Na composite oxide catalyst by the process comprising incorporating compounds as respective element sources into a composite and subjecting the composite to heating treatment in an aqueous system, bismuth oxide and/or bismuth subcarbonate are/is used as a Bi source copmpound and at least a part of the heat treatment is conducted at a temperature of 450.degree. to 600.degree. C. The activity of the catalyst is significantly improved by introducing Bi in the form of the specified water insoluble compound into the catalyst.
摘要翻译: 在制备Mo-Bi-Na复合氧化物催化剂的过程中,包括将化合物作为各元素源并入复合材料中,并使复合材料在水性体系中进行加热处理,将氧化铋和/或亚碳酸铋用作 Bi源组成,至少一部分热处理在450〜600℃的温度下进行。通过将特定的水不溶性化合物的Bi引入催化剂,催化剂的活性显着提高。
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公开(公告)号:US4837360A
公开(公告)日:1989-06-06
申请号:US421796
申请日:1982-09-23
申请人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
发明人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
IPC分类号: C07C27/14 , B01J23/88 , B01J27/00 , B01J27/19 , B01J35/00 , C07B61/00 , C07C27/00 , C07C45/00 , C07C45/35 , C07C47/22 , C07C51/00 , C07C51/25 , C07C57/05 , C07C67/00
CPC分类号: B01J23/8872 , B01J23/8874 , B01J23/8876 , B01J27/19 , B01J35/0006 , C07C45/35 , C07C51/252 , B01J2523/00
摘要: Acrolein and acrylic acid are produced by vapor-phase catalytic oxidation of propylene in a multi-tubular, fixed-bed reaction vessel with the use of a composite oxide catalyst represented by the formula Mo.sub.a Bi.sub.b Fe.sub.c A.sub.d B.sub.e C.sub.f D.sub.g Si.sub.h O.sub.x, wherein A, B, C, and D represent components selectable from respective groups of elements, and the subscripts a through h and x are specific numbers of atoms of respective elements and groups of elements. This catalyst is adapted and packed in each reaction tube in a manner such that its activity is controlled to increase from the inlet toward the outlet of the tube.
摘要翻译: 丙烯醛和丙烯酸通过使用由式Moa Bib Fec Ad Be Cf Dg Sih Ox表示的复合氧化物催化剂在多管式固定床反应容器中气相催化氧化丙烯来制备,其中A, B,C和D表示可从各组元素选择的组分,下标a至h和x是相应元素和元素组的原子的特定数目。 该催化剂以每个反应管中的方式适应和包装,使得其活性被控制以从管的入口向出口增加。
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公开(公告)号:US4356114A
公开(公告)日:1982-10-26
申请号:US262137
申请日:1981-05-11
申请人: Koju Kadowaki , Kohei Sarumaru , Yoshiaki Tanaka
发明人: Koju Kadowaki , Kohei Sarumaru , Yoshiaki Tanaka
IPC分类号: C07C51/235 , B01J23/00 , B01J23/28 , B01J23/88 , B01J23/888 , B01J23/89 , B01J37/08 , C07B61/00 , C07C51/00 , C07C51/25 , C07C57/055 , C07C67/00 , B01J23/20 , B01J23/22
CPC分类号: C07C51/252 , B01J23/002 , B01J23/28 , B01J23/8885 , B01J37/08 , B01J2523/00
摘要: In the production of a composite oxide catalyst containing at least Mo tegether with V and (or) Nb, the catalyst precursor is subjected to a thermal decomposition step in which: (1) the precursor is heated in a heat-exchanger type apparatus in which a first space accommodating the precursor and a second space through which a heating fluid flows are partitioned and separated from each other, the heating of the precursor being accomplished through the partitioning; (2) the thermal decomposition is carried out as an atmosphere gas of an oxygen concentration of 0.05 to 5 percent is caused to flow through the first space; and (3) the maximum temperature reached in the thermal decomposition is 300.degree. to 550.degree. C.
摘要翻译: 在至少含有Mo的Mo和(或)Nb的复合氧化物催化剂的制造中,对催化剂前体进行热分解工序,其中:(1)在热交换型装置中加热前体, 容纳前体的第一空间和加热流体流过的第二空间彼此分隔和分离,前体的加热通过分隔完成; (2)当氧浓度为0.05〜5%的气氛气体通过第一空间时,进行热分解; 和(3)热分解中达到的最高温度为300〜550℃。
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公开(公告)号:US4732884A
公开(公告)日:1988-03-22
申请号:US29647
申请日:1987-03-24
申请人: Kohei Sarumaru , Etsuji Yamamoto , Teruo Saito
发明人: Kohei Sarumaru , Etsuji Yamamoto , Teruo Saito
IPC分类号: B01J23/881 , B01J23/88 , B01J23/882 , B01J23/887 , B01J23/888 , B01J27/192 , B01J37/04 , C07C45/35 , C07C45/37 , C07C51/25 , B01J21/08 , B01J23/78 , B01J23/84
CPC分类号: B01J23/8885 , B01J23/002 , B01J23/8872 , B01J23/8873 , B01J23/8876 , B01J27/192 , C07C253/26 , C07C45/35 , C07C45/37 , C07C51/252 , B01J2523/00 , Y02P20/52
摘要: In the production of a Mo-Bi-Na composite oxide catalyst by the process comprising incorporating compounds as respective element sources into a composite and subjecting the composite to heat treatment, a bismuth subcarbonate in which at least a part of required Na has been solid-dissolved is used as a Bi source compound. The activity of the catalyst is significantly improved by introducing Bi and Na in the form of the specified water insoluble compound into the catalyst.
摘要翻译: 在通过以下方法制备Mo-Bi-Na复合氧化物催化剂时,包括将化合物作为各自的元素源并入复合材料中并对复合材料进行热处理,其中至少一部分所需的Na已经固体 - 溶解用作Bi源化合物。 通过将特定的水不溶性化合物形式的Bi和Na引入到催化剂中,催化剂的活性得到显着改善。
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公开(公告)号:US4604370A
公开(公告)日:1986-08-05
申请号:US753136
申请日:1985-07-09
申请人: Kohei Sarumaru , Takeshi Shibano , Yoichi Ishii , Etsuji Yamamoto
发明人: Kohei Sarumaru , Takeshi Shibano , Yoichi Ishii , Etsuji Yamamoto
IPC分类号: C07C47/22 , B01J23/92 , B01J23/94 , B01J27/28 , B01J38/12 , C07B61/00 , C07C45/00 , C07C45/35 , C07C67/00
CPC分类号: B01J38/12 , B01J23/92 , C07C45/35 , Y02P20/584
摘要: A process for regenerating a Mo.Bi-based multi-oxide catalyst the catalytic performance of which has deteriorated as a result of its use in vapor-phase catalytic oxidation of propylene or isobutene to prepare acrolein or methacrolein, respectively, which process comprises: heating the deteriorated Mo.Bi-based multi-oxide catalyst in an atmosphere consisting essentially of air at a temperature of 380.degree. C. to 540.degree. C., so as to attain at least partial restoration of the catalytic performance thereof.
摘要翻译: 一种用于再生基于Mo.Bi的多氧化物催化剂的方法,其催化性能由于其在丙烯或异丁烯的气相催化氧化中的用途而分别降低,以制备丙烯醛或异丁烯醛,该方法包括:加热 在基本上由380℃至540℃的空气组成的气氛中的Mo.Bi基多氧化物催化剂劣化,从而至少部分恢复其催化性能。
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公开(公告)号:US4873368A
公开(公告)日:1989-10-10
申请号:US426273
申请日:1982-09-29
申请人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
发明人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
IPC分类号: B01J8/06 , B01J23/00 , C07B61/00 , C07C45/35 , C07C51/00 , C07C51/25 , C07C57/05 , C07C67/00
CPC分类号: C07C45/35 , B01J8/067 , C07C51/252 , B01J2208/00212 , B01J2208/025
摘要: Propylene in admixture with molecular oxygen and steam is subjected to a two-step, vapor-phase, catalytic oxidation to convert into acrolein and then into acrylic acid. At least the first-step reaction is conducted in tubes of an apparatus of a shell-and-tube heat-exchanger type structure, and the reaction product of the first-step reaction is quenched before it is subjected to the second-step reaction. Reaction conditions in both the steps are specified.
摘要翻译: 将与分子氧和蒸汽混合的丙烯进行两步气相催化氧化,转化为丙烯醛,然后转化为丙烯酸。 至少第一步反应在管式热交换器结构的装置的管中进行,第一步反应的反应产物在进行第二步反应之前被淬灭。 规定了两个步骤中的反应条件。
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公开(公告)号:US5077434A
公开(公告)日:1991-12-31
申请号:US129749
申请日:1987-12-07
申请人: Kohei Sarumaru , Takeshi Shibano
发明人: Kohei Sarumaru , Takeshi Shibano
IPC分类号: C07C57/05 , B01J23/28 , B01J23/31 , C07B61/00 , C07C45/35 , C07C51/00 , C07C51/235 , C07C51/25 , C07C57/04 , C07C57/055 , C07C67/00
CPC分类号: C07C45/35 , C07C51/252
摘要: Vapor phase catalytic oxidation of propylene into acrolein in the first step and then into acrylic acid in the second step has been improved (1) by utilizing as a diluent for the oxidation in the first step the effluent gas from the second step after the acrylic acid produced has been recovered therefrom and after it has been catalytically combusted and (2) by specifying operation conditions set in view of the recycle of the combusted "waste" gas.The improved process, embodying the present invention, has made it possible to produce a high concentration of acrylic acid as both gas and condensation and also to prolong the catalytic activity of a Mo-Bi composite oxide catalyst used for the first oxidation reaction.
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公开(公告)号:US4551571A
公开(公告)日:1985-11-05
申请号:US708743
申请日:1985-03-06
申请人: Kohei Sarumaru , Tomoatsu Iwakura , Yasuo Yoshino , Toshimichi Ito , Akikazu Watanabe , Mikio Mori
发明人: Kohei Sarumaru , Tomoatsu Iwakura , Yasuo Yoshino , Toshimichi Ito , Akikazu Watanabe , Mikio Mori
CPC分类号: C07C5/3332
摘要: A method for producing an alkenylbenzene by catalytically dehydrogenating an alkylbenzene non-oxidatively in the presence of steam in the reaction zone comprising a fixed-bed of potassium-containing dehydrogenation catalyst particles, wherein the potassium-containing dehydrogenation catalyst particles are prevented from powdering by (a) using a fixed-bed comprising particles of at least two kinds of potassium-containing dehydrogenation catalyst with respectively different potassium contents and (b) arranging the catalyst particles so that those with higher potassium content are not disposed on the inlet side of said catalyst bed with respect to the reaction.
摘要翻译: 在含有脱氢催化剂粒子的固定床的反应区域中,在蒸汽存在下,通过非蒸汽催化脱氢烷基苯的方法,其中,所述含钾脱氢催化剂粒子不被粉化( a)使用包含至少两种具有不同钾含量的含钾脱氢催化剂的颗粒的固定床,和(b)排列催化剂颗粒,使得具有较高钾含量的那些不被设置在所述催化剂的入口侧 相对于反应的床。
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公开(公告)号:US4365087A
公开(公告)日:1982-12-21
申请号:US116445
申请日:1980-01-29
申请人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
发明人: Koju Kadowaki , Kohei Sarumaru , Takeshi Shibano
IPC分类号: B01J23/00 , C07B61/00 , C07C45/35 , C07C51/00 , C07C51/25 , C07C57/05 , C07C67/00 , C07C57/04 , C07C57/055
CPC分类号: C07C45/35 , C07C51/252 , B01J2523/00
摘要: In the production of acrylic acid by a two-stage, vapor-phase catalytic oxidation of propylene, a composite oxide catalyst expressed by the formula Mo.sub.a Bi.sub.b Ni.sub.c Co.sub.d Fe.sub.e Na.sub.f Mn.sub.g B.sub.h K.sub.i Si.sub.j O.sub.x is used in the first-stage reaction, which is carried out under specific reaction and operational conditions, and the second-stage reaction is carried under specific reaction and operational conditions while oxygen is supplied by a specific mode.
摘要翻译: 在通过丙烯的两阶段气相催化氧化生产丙烯酸的过程中,在特定反应和操作条件下进行的第一阶段反应中使用由式MoaBibNicCodFeeNafMngBhKiSijOx表示的复合氧化物催化剂, 第二阶段反应在特定反应和操作条件下进行,同时通过特定模式供给氧气。
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