A kind of reactor and reaction system for synthesizing methyl butynol
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A technology of methyl butynol and reactor, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of hydroxy compounds, etc., can solve problems such as the decrease of selectivity of methyl butynol
Active Publication Date: 2018-12-07
SOUTHWEST RES & DESIGN INST OF CHEM IND
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[0003] Studies have shown that the main reaction of acetylene and acetone to synthesize methyl butynol is an exothermic reaction, the heat of reaction ΔH°298=-62.76kJ / mol, the reaction is about 1 level for acetylene, about 1.5 level for catalyst, and the product methyl Butynol is easy to react with acetone to form dimethylhexynediol, which leads to a decrease in the selectivity of methylbutynol
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[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0021] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0022] The reactor and reaction system for synthesizing methyl butynol of the present invention will be described in more detail below.
[0023] According to an exemplary embodiment of the present invention, the reactor 20 for synthesizing methyl butynol includes a first-stage tubular reactor 21 and a second-stage tubular reactor 22 connected in sequence, wherein the first-stage tubular reactor 21 and the second-stage tubular reactor The segm...
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Abstract
The invention discloses a reactor and reaction system for synthesizing methylbutynol. The reactor comprises a first-stage tubular reactor and a second-stage tubular reactor, which are connected sequentially, wherein each of the first-stage tubular reactor and the second-stage tubular reactor comprises a tubular reactor and a static mixer arranged in the tubular reactor. The reaction system comprises a stirring reaction kettle, a reactor and a termination mixer which are connected in a proper sequence by virtue of pipelines, wherein the reactor adopts the above reactor for synthesizing methylbutynol, a discharge port of the stirring reaction kettle is connected with a feed port of the first-stage tubular reactor, and a discharge port of the second-stage tubular reactor is connected with a feed port of the termination mixer. The reactor and the reaction system for synthesizing methylbutynol, disclosed by the invention, not only greatly shorten the tube pass length of the reactor, but also realize effective mixing of materials, avoid occurrence of side reactions, and greatly improve the product yield in comparison with an early process.
Description
technical field [0001] The invention belongs to the technical field of organic chemical industry, and more specifically relates to a novel reactor and a reaction system for the production of methyl butynol. Background technique [0002] Methylbutynol is one of the important acetylenic alcohol chemicals, mainly used in corrosion inhibition, food and medicine, and other chemical products and other fields. The early relevant patents were mainly from Italy Slam (SNAM), such as Italian patents IT590732, IT650164, IT778013, IT684731, IT692788, IT695546, etc., US patents US3283014, US3301771, etc., British patents GB902014, GB93563, GB938849, GB1041052, GB55 , GB938849, etc., and domestic patent CN104470879A, etc. [0003] Studies have shown that the main reaction of acetylene and acetone to synthesize methyl butynol is an exothermic reaction, the heat of reaction ΔH°298=-62.76kJ / mol, the reaction is about 1st order for acetylene, and about 1.5th order for catalyst, and the produc...
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