A heat transfer medium circuit through only one reactor space surrounding the contact tubes of a multiple contact tube fixed-bed method generates acrolein acrylic acid from the catalytic gas phase oxidation reactor, the method comprising: First, the reactor see integral so that the heat exchange ...
Oxidation of acrolein to acrylic acidThis application is a continuation-in-part of application Serial No. 411,758 now Patent #2,341,339, patented February 8, 1944 and concerns improvements relating to the oxidation of acrolein to acrylic acid. It is known that acrylic acid may be prepared by...
Heterogeneous Catalytic Oxidation of Acrolein to Acrylic Acid: Mechanism and Catalysts, T.V. Andrushkevich, Catal. Rev. Sci. Eng., 35(2), 213 259/1993.Andrushkevich TV (1993) Heterogeneous catalytic oxidation of acrolein to acrylic acid: mechanism and catalysts, vol 35. Taylor & Francis,...
ACROLEIN/ACRYLIC ACID COPOLYMER Appearance:off-white to white solid Purity:98 FOB Price: / Contact Supplier GrowingChem (Shanghai) Co., Ltd. Manufacturer ACROLEIN/ACRYLIC ACID COPOLYMER Appearance: Purity:99% FOB Price: / Contact Supplier Total 4 Flubendazole SuppliersRelated...
A process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of acrolein to acrylic acid, in which the temperature of the fixed catalyst bed is i
Acrylic acid catalyst prepared by acrolein oxidation and preparation method thereofAcrylic acid catalyst prepared by acrolein oxidation and preparation method thereof本发明涉及一种由丙烯醛氧化制备丙烯酸催化剂及其制备方法,主要解决现有技术中催化剂反应收率和选择性不高的问题. The present invention relates to a...
PROBLEM TO BE SOLVED: To produce acrylic acid from acrolein by gas-phase oxidation of acrolein in the absence of oxygen in molecular state by passing a gaseous mixture of acrolein and water vapor over a specific mixed solid oxide composition. SOLUTION: This production of acrylic acid comprises ...
Method to produce acrolein or acrylic acid or their mixture from propane FIELD: blasting. SUBSTANCE: in the first reaction zone A at least two gaseous supply flows are supplied, containing propane, at least one of which contains fresh propane, to produce a reaction gas A; - in the reaction...
CATALYST FOR PRODUCING ACRYLIC ACID AND PROCESS FOR PRODUCING ACRYLIC ACID USING THE CATALYST PROBLEM TO BE SOLVED: To provide a catalyst which, when producing acrylic acid from propane and/or acrolein, is excellent in catalytic performance such as catalytic activity and selectivity and in catalyst ...
The process and apparatus for producing (meth) acrolein or (meth) acrylic acid is characterized by the fact that a thermal vehicle feeder is employed which has a control valve disposed therein to control the feed and circulation rates of thermal vehicle and in which the ground gasket element, ...