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    Gas phase oxidation of propylene to acrylic acid using ring-shaped multi-metal oxide catalyst of specified geometry to maximize selectivity and space-time yield
    121.
    发明专利
    Gas phase oxidation of propylene to acrylic acid using ring-shaped multi-metal oxide catalyst of specified geometry to maximize selectivity and space-time yield 未知

    公开(公告)号：DE19948241A1

    公开(公告)日：2001-04-12

    申请号：DE19948241

    申请日：1999-10-07

    Applicant: BASF AG

    Inventor： ARNOLD HEIKO ,  UNVERRICHT SIGNE ,  HAMMON ULRICH ,  NEUMANN HANS-PETER ,  HARTH KLAUS ,  TENTEN ANDREAS

    IPC: B01J23/887 ,  C07C45/35 ,  C07C51/25 ,  B01J23/28 ,  B01J23/30 ,  B01J23/31 ,  B01J23/888 ,  B01J27/057 ,  C07C47/22

    Abstract: Gas phase oxidation of propylene into acrylic acid in which the mixture of reaction gas is oxidized on a first fixed-bed catalyst and the mixture of product gas which contain acrolein oxidized on a second fixed-bed catalyst. The catalyst shaped bodies comprise an annular geometry in both reaction steps. Gas-phase oxidation of propylene in a one-stage reaction to acrolein and/or acrylic acid or in a two-stage reaction to acrylic acid is such that (i) the initial charge in both cases is \- 160 Nl propylene/l catalyst hour; (ii) the charge to the 2nd stage (if used) includes \- 140 NL acrolein/l catalyst hour ; and (iii) the catalyst or catalysts is/are of ring form with an outer diameter 2-11 mm, length 2-11 mm and a wall-thickness 1-5 mm. The process comprises (A) feeding a mixture of propylene, molecular oxygen and an inert gas with molar ratio O2 : C3H6 \- 1 at high temperature over a solid bed catalyst with characteristics (i) and (iii) above and comprising a multi-metal oxide containing Mo and/or W together with Bi, Te, Sb, Sn and/or Cu such that the propylene conversion and the combined selectivity for acrolein and the acrylic acid by-product are both \- 90 mol.%; and optionally (B) cooling the acrolein-containing gas product and optionally adding molecular O2 and/or inert gas prior to passing it at high temperature and with molar ratio O2 : acrolein \- 0.5 over a Mo- and V-containing multi-metal oxide solid bed catalyst such that the acrolein conversion is \- 90 mol.% and the combined two-stage acrylic acid selectivity (based on propylene conversion) is \- 80 mol.%.

    DEVICE FOR PHASE SEPARATION
    127.
    发明专利
    DEVICE FOR PHASE SEPARATION 未知

    公开(公告)号：CA2261617A1

    公开(公告)日：1998-02-12

    申请号：CA2261617

    申请日：1997-08-04

    Applicant: BASF AG

    Inventor： HEIDA BERND ,  HAMMON ULRICH ,  THIESSEN FRITZ

    IPC: B01D17/025 ,  B01D17/02 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

    Abstract: In a separator (11), designed to separate mixtures composed of liquids of various densities, the inflow (12) of the liquid mixture is so arranged and so designed that the inflowing liquid mixture hits an inner wall(16), located opposite the separator outflows, at an angle .alpha. of 0~ - 45~ relative to the normal to the container wall. Such a separator can be used in the manufacturing process for acrylic acid through catalytic vapour-phase oxidation of propene.

    128.
    发明专利
    未知

    公开(公告)号：ID17416A

    公开(公告)日：1997-12-24

    申请号：ID972713

    申请日：1997-08-05

    Applicant: BASF AG

    Inventor： HEIDA BERND ,  THIESSEN FRITZ ,  HAMMON ULRICH ,  DAMS ALBRECHT

    IPC: C07C51/25 ,  C07C51/48 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

    Abstract: PCT No. PCT/EP97/04214 Sec. 371 Date Feb. 4, 1999 Sec. 102(e) Date Feb. 4, 1999 PCT Filed Aug. 1, 1997 PCT Pub. No. WO98/05622 PCT Pub. Date Feb. 12, 1998A process for isolating acrylic acid forward during catalytic gas phase oxidation of propene, which entails separating acrylic acid from the gas phase oxidation reaction using an absorbent containing biphenyl, diphenyl ether or dimethyl phthalate; and extracting acrylic acid from acid water of the gas phase reaction with a solvent containing biphenyl, diphenyl ether or dimethyl phthalate.

    processo para a preparação de pelo menos um composto alvo orgânico, e, aparelho
    129.
    发明专利
    processo para a preparação de pelo menos um composto alvo orgânico, e, aparelho 未知

    公开(公告)号：BRPI0607566B1

    公开(公告)日：2016-03-29

    申请号：BRPI0607566

    申请日：2006-03-01

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  MÜLLER-ENGEL KLAUS JOACHIM ,  DIETERLE MARTIN ,  HAMMON ULRICH

    IPC: C07C57/05

    Abstract: processo para a preparação de pelo menos um composto alvo orgânico, e, aparelho. a invenção refere-se a um processo para a produção de um composto alvo orgânico pela realização de uma oxidação parcial em fase gasosa heterogeneamente catalisada em um composto precursor orgânico com oxigénio molecular nos percursos de reator de oxidação que são operados em paralelo, e eliminação do composto alvo da mistura dos fluxos de gás de produto em um percurso de reprocessamento. o catalisador alimentado a um dos percursos de oxidação contém uma quantidade parcial de catalisador na qual a oxidação parcial em fase gasosa heterogeneamente catalisada já tenha sido realizada em mais que as quantidades parcial de catalisador alimentado para o outro percurso de reator de oxidação.

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