A method for realizing anhydrous and oxygen-free operation and a process for producing cyclomanganese reaction of methylcyclopentadienyl manganese using the method

A technology of methylcyclopentadienyl manganese and an operation method is applied in the field of cyclomanganese reaction production technology of methylcyclopentadienyl manganese, which can solve the problems of large nitrogen consumption, economic loss and high energy consumption, and achieves Improve the success rate of the reaction, good economic benefits, and simple operation
CN104084102BActive Publication Date: 2016-01-20山东东昌精细化工科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
山东东昌精细化工科技有限公司
Publication Date
2016-01-20

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Abstract

The invention relates to a method for realizing anhydrous anaerobic operation and a ring manganese reaction production process of methyl cyclopentadienyl manganese by the method. The method comprises the following steps: (1) arranging a micro-positive pressure breather valve on a venting pipeline of a reaction still, and injecting inert gas to keep the micro-positive pressure state in the reaction still before feeding, wherein the gauge pressure of the micro-positive pressure is not greater than 400 Kpa; and (2) filling the reaction still with micro-flow inert gas through a small-range flowmeter, and opening a charging hole for charging, wherein inert gas always flows out of the still, and the flow of inert gas is controlled within 20-200 L / minute. According to the method, the reaction still is capable of using inert gas as less as possible and completing material charging and discharging under the protection of inert gas, so that the risk of reaction failure is decreased.
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Description

technical field

[0001] The invention relates to the field of fine chemical production, and more specifically relates to a method for realizing anhydrous and oxygen-free operation and a cyclomanganese reaction production process of methylcyclopentadienyl manganese using the method. Background technique

[0002] Many substances, especially some substances synthesized by humans, are sensitive to air, that is, unstable to oxygen and moisture in the air, such as alkali metals, organic alkali metals, free radicals, anaerobic organisms, cyclopentadienyl Manganese, methylcyclopentadienyl manganese, etc. Therefore, if these compounds are involved in research and production, such as in the production of MMT (ie: methylcyclopentadiene manganese tricarbonyl) and CMT (ie: cyclopentadiene manganese tricarbonyl), it is necessary to produce Operate under oxygen conditions.

[0003] In the case of ensuring that the reaction material does not contain water, three methods are currently used ...

Claims

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