Chromatographically pure tert-butyl methyl ether as well as preparation method and production system thereof

A technology of pure tert-butyl methyl ether and tert-butyl methyl ether, which is applied in the field of chemical product purification, can solve the problems of not meeting scientific research requirements, low product purity and low yield, etc., and achieves the effects of efficient preparation, simple process and convenient operation.

Inactive Publication Date: 2017-11-10
HUBEI ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chromatographically pure tert-butyl methyl ether is one of the mobile phases commonly used in liquid chromatography. Various purification processes of tert-butyl methyl ether have been reported at home and abroad. The purification methods mainly include: decolorization, adsorption, rectification, or decolorization, adsorption, rectification The disadvantages of these purification methods are that the product purity is not high, does not meet the scientific research requirements, or the yield is not high and the cost is too high

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  • Chromatographically pure tert-butyl methyl ether as well as preparation method and production system thereof
  • Chromatographically pure tert-butyl methyl ether as well as preparation method and production system thereof
  • Chromatographically pure tert-butyl methyl ether as well as preparation method and production system thereof

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Embodiment 1

[0048] The present embodiment provides a kind of chromatographically pure tert-butyl methyl ether, which adopts figure 1 Shown production system 001, and make according to following preparation method:

[0049] S101, 4A molecular sieve adsorption: use industrial-grade tert-butyl methyl ether as a raw material, transport it to the reaction kettle 100 through the raw material delivery pump 170, close the raw material delivery pump 170, and cut off the reaction kettle 100 and the alumina adsorption column through a valve (not shown in the figure) 120, and connect the pipeline between the reaction kettle 100 and the 4A molecular sieve post 110, and open the circulation pump 180 to establish the bottom of the reaction kettle 100, the circulation pump 180, the 4A molecular sieve post 110 and the reaction kettle 100 The circulating pipeline at the top is used for circulating adsorption. The circulating pump 180 controls the flow rate of tert-butyl methyl ether in the 4A molecular sie...

Embodiment 2

[0054] The present embodiment provides a kind of chromatographically pure tert-butyl methyl ether, which adopts figure 1 Shown production system 001, and make according to following preparation method:

[0055] S201, 4A molecular sieve adsorption: use industrial-grade tert-butyl methyl ether as a raw material, transport it to the reaction kettle 100 through the raw material delivery pump 170, close the raw material delivery pump 170, and cut off the reaction kettle 100 and the alumina adsorption column through a valve (not shown in the figure) 120, and connect the pipeline between the reaction kettle 100 and the 4A molecular sieve post 110, and open the circulation pump 180 to establish the bottom of the reaction kettle 100, the circulation pump 180, the 4A molecular sieve post 110 and the reaction kettle 100 The circulating pipeline at the top is used for circulating adsorption. The circulating pump 180 controls the flow rate of tert-butyl methyl ether in the 4A molecular sie...

Embodiment 3

[0060] The present embodiment provides a kind of chromatographically pure tert-butyl methyl ether, which adopts figure 1 Shown production system 001, and make according to following preparation method:

[0061] S301, 4A molecular sieve adsorption: use industrial-grade tert-butyl methyl ether as a raw material, transport it to the reaction kettle 100 through the raw material delivery pump 170, close the raw material delivery pump 170, and cut off the reaction kettle 100 and the alumina adsorption column through a valve (not shown in the figure) 120, and connect the pipeline between the reaction kettle 100 and the 4A molecular sieve post 110, and open the circulation pump 180 to establish the bottom of the reaction kettle 100, the circulation pump 180, the 4A molecular sieve post 110 and the reaction kettle 100 The circulating pipeline at the top is used for circulating adsorption. The circulating pump 180 controls the flow rate of tert-butyl methyl ether in the 4A molecular sie...

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Abstract

The invention discloses chromatographically pure tert-butyl methyl ether as well as a preparation method and a production system thereof, and relates to the technical field of purification of chemical products. The preparation method for the chromatographically pure tert-butyl methyl ether comprises the following steps: performing adsorbing treatment on industrial grade tert-butyl methyl ether via a 4A molecular sieve and an aluminium oxide adsorbing column in sequence, and rectificating. The preparation method has the advantages that the production cost is low, and the prepared chromatographically pure tert-butyl methyl ether is high in quality and high in yield. The production system for the chromatographically pure tert-butyl methyl ether provided by the invention comprises a reaction kettle, a 4A molecular sieve column, the aluminium oxide adsorbing column, a fractionating tower and a finished product tank which are connected in sequence; the production system can prepare the low-cost and high-purity chromatographically pure tert-butyl methyl ether.

Description

technical field [0001] The invention relates to the technical field of purification of chemical products, and in particular to a chromatographically pure tert-butyl methyl ether, a preparation method and a production system thereof. Background technique [0002] Chromatographically pure refers to standard reagents or solvents used in chromatographic analysis. Its UV transmittance at low wavelengths is relatively good. Under chromatographic conditions, only peaks of specified compounds can appear, and impurity peaks cannot appear. Therefore, chromatographically pure The purity requirements of reagents are very high. In addition to the high requirements on the content of specified compounds, there are also high requirements on the content of impurities such as dust and water, which belong to the category of high-purity reagents. At present, the domestic chromatographic pure market is mostly monopolized by foreign reagent companies, such as Merck, Sigma, Fisher, Tedia, etc. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/34C07C41/36C07C41/42C07C43/04
CPCC07C41/34C07C41/36C07C41/42C07C43/046
Inventor 文胜覃彩芹郑根稳龚春丽赵正崇程凡董浩
Owner HUBEI ENG UNIV
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