Preparation method of 2-butyl ammonium sebate glycol electrolyte solution

A technology of ammonium sebacate and electrolyte solution, applied in the directions of carboxylate preparation, carboxylate preparation, carboxylate preparation, etc., can solve the problems of increasing refining and purification steps, many steps, easy to retain impurities, etc. The effect of high conductivity, high oxidation efficiency and high flash voltage

Inactive Publication Date: 2016-10-12
CHANGZHOU VOCATIONAL INST OF ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this technical scheme, there are two kinds of intermediate products, which increase the

Method used

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  • Preparation method of 2-butyl ammonium sebate glycol electrolyte solution
  • Preparation method of 2-butyl ammonium sebate glycol electrolyte solution

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Embodiment 1

[0023] A kind of preparation method of 2-butylammonium sebacate glycol electrolyte solution, this preparation method comprises the steps:

[0024] (1) Preparation of 9,9-bis(methoxycarbonyl)-undecyl carboxylic acid ethyl ester

[0025] Add 1297.6g (6.00mol) of diethyl n-butylmalonate (2) and 1255.8g (5.00mol) of ethyl 8-bromooctanoate (3) into a 10L three-necked flask, add dropwise 20% sodium ethylate ethanol solution 2040.6 g (6.00mol), the temperature is controlled below 60°C, after the dropwise addition is completed, stir under reflux for several hours, use the gas phase to control the reaction end point, concentrate the reaction solution after the raw material (3) is completely reacted, and then add 2L of water to the reaction kettle , extracted with an appropriate amount of ethyl acetate and concentrated, and the concentrated solution was rectified to obtain 1636.5 g of 9,9-bis(methoxycarbonyl)-undecanecarboxylic acid ethyl ester (4), with a purity of 99.1% and a yield of...

Embodiment 2

[0033] A kind of preparation method of 2-butylammonium sebacate glycol electrolyte solution, this preparation method comprises the steps:

[0034] (1) Preparation of 9,9-bis(methoxycarbonyl)-undecyl carboxylic acid ethyl ester

[0035] Add 1081.3g (5.00mol) of diethyl n-butylmalonate (2) and 1255.8g (5.00mol) of ethyl 8-bromooctanoate (3) into a 10L three-necked flask, add dropwise 1350.6 g of 20% sodium methoxide methanol solution g (5.00mol), the temperature is controlled below 60°C, after the dropwise addition is completed, stir under reflux for several hours, use the gas phase to control the reaction end point, concentrate the reaction solution after the raw material (3) is completely reacted, and then add 3L of water to the reaction kettle , extracted with an appropriate amount of ethyl acetate and then concentrated, and the concentrated solution was rectified to obtain 1625.6 g of 9,9-di(methoxycarbonyl)-undecanecarboxylic acid ethyl ester (4), with a purity of 99.0% and...

Embodiment 3

[0043] A kind of preparation method of 2-butyl ammonium sebacate glycol electrolyte solution, it is characterized in that: this preparation method comprises the steps:

[0044] (1) Preparation of 9,9-bis(methoxycarbonyl)-undecyl carboxylic acid ethyl ester

[0045] Add 1340.9g (6.20mol) of diethyl n-butylmalonate (2) and 1255.8g (5.00mol) of ethyl 8-bromooctanoate (3) into a 10L three-necked flask, and dropwise add 20% potassium ethylate ethanol solution 2314.4 g (5.50mol), the temperature is controlled below 60°C, after the dropwise addition is completed, stir under reflux for several hours, use the gas phase to control the reaction end point, concentrate the reaction solution after the raw material (3) is completely reacted, and then add 3L of water to the reaction kettle , extracted with an appropriate amount of ethyl acetate and concentrated, and the concentrated solution was rectified to obtain 1645.5 g of 9,9-bis(methoxycarbonyl)-undecanecarboxylic acid ethyl ester (4), ...

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Abstract

The invention relates to a preparation method of a high-performance 2-butyl ammonium sebate glycol electrolyte solution. 2-butyl sebate is prepared through the steps such as alkylating, hydrolyzing and decarboxylation by using n-butyl diethyl malonate and 8-bromine ethyl caprylate as raw materials, the yield reaches 87.8%, the compound is used for reacting with ammonia gas in glycol to prepare the electrolyte solution, the conductivity is 2.60 mS/cm (30 DEG C), the sparking voltage is 455 V (85 DEG C), the oxidation efficiency is 1.65 (2mA), the performance is superior to that of an existing market product, and the electrolyte solution has good market prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of electrolyte solutions, in particular to a preparation method of 2-butyl ammonium sebacate glycol electrolyte solution. Background technique [0002] In recent years, capacitors have gradually been widely used in automotive electronics, displays, chargers, electronic ballasts and other fields. The various performance requirements of capacitors have also been continuously improved. Fast charging and discharging is a basic performance requirement for capacitors. Charging and discharging involves high conductivity, high flashover voltage and high oxidation efficiency of the working electrolyte of the capacitor. [0003] With the gradual promotion of boron-free high-voltage aluminum electrolytic capacitors, the electrolyte of the branched chain dibasic acid series has gradually become the new favorite in the market. At present, the popular high-voltage electrolyte systems on the market mainly i...

Claims

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Application Information

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IPC IPC(8): H01G9/035C07C55/02C07C51/41C07C51/38C07C51/09C07C55/22C07C69/34C07C67/343
CPCH01G9/035C07C51/09C07C51/38C07C51/412C07C67/343C07C55/02C07C55/22C07C69/34
Inventor 刘长春程进李树白徐寿相刘承先薛叙明徐进蒋若愚戴溢郭程蒋川
Owner CHANGZHOU VOCATIONAL INST OF ENG
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