A method for preparing bis((3,4-epoxycyclohexyl)methyl)adipate with microchannel reactor

A micro-channel reactor, epoxy cyclohexyl technology, applied in organic chemistry and other directions, can solve the problems of continuous production difficulty, low product yield, high reaction temperature, and achieve good electrical insulation, high product purity, and reaction yield. high rate effect
CN109912544BActive Publication Date: 2022-04-01JIANGSU TETRA NEW MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU TETRA NEW MATERIAL TECH
Publication Date
2022-04-01

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Abstract

The invention discloses a method for preparing bis((3,4-epoxycyclohexyl)methyl)adipate with a microchannel reactor, comprising the following steps: using 3-cyclohexene-1-methanol and adipic di Acyl chloride is raw material, carries out esterification in the first microreactor and makes intermediate bis((3-cyclohexenyl) methyl) adipate; Take peracetic acid as oxygenant, in the second microreactor The carbon-carbon double bond of cyclohexenyl on the intermediate bis((3-cyclohexenyl)methyl) adipate is carried out selective epoxidation reaction to prepare bis((3,4-epoxy Cyclohexyl)methyl)adipate. The present invention adopts the in-situ method to carry out the epoxidation reaction of olefins while preparing peracetic acid, and the technological process is easy to operate; the esterification reaction temperature is low, the side reactions are few, the aftertreatment is simple, and the efficiency is high; the reaction yield is high and the product The purity is high, and the conversion rate of the intermediate product and the selectivity of the product have been significantly improved; the separation process of the product is easy to operate, and is suitable for a continuous production process.
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Description

technical field

[0001] The invention relates to a method for preparing bis((3,4-epoxycyclohexyl)methyl)adipate with a microchannel reactor, and belongs to the field of preparation of alicyclic epoxy resins. Background technique

[0002] Bis((3,4-epoxycyclohexyl)methyl)adipate (ERL4299) is an epoxy resin with special functions developed by United Carbon Chemical Company. It has the following characteristics: saturated structure, excellent weather resistance , the finished product will not crack or yellow, and carbon dioxide and water will be generated during electrical decomposition, unlike aromatic resins that produce graphite and cause short circuits; low chlorine content, especially suitable for insulating materials that require high electrical performance, good high-temperature insulation, and durability Strong arc resistance and tracking resistance; can be cured by heat or light, fast curing and low curing shrinkage; the cured product has high cross-linking density and e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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