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Treatment method of mixed solution containing isopropanol, acetonitrile, triethylamine and water

A treatment method, triethylamine technology, applied in water/sewage treatment, chemical instruments and methods, heating water/sewage treatment, etc., can solve problems such as inseparability, and achieve the effect of easy treatment and recycling

Active Publication Date: 2021-08-31
索闻特环保科技(上海)有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are 8 azeotropes in the isopropanol-acetonitrile-triethylamine-water waste liquid produced in the biopharmaceutical industry, and isopropanol, acetonitrile and water are miscible, and triethylamine and water will dissolve differently at different temperatures property, cannot be separated by ordinary rectification

Method used

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  • Treatment method of mixed solution containing isopropanol, acetonitrile, triethylamine and water

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Embodiment Construction

[0013] The rectification tower in this embodiment includes not only the tower body, but also relevant supporting equipment and instrumentation systems such as pumps, pipelines, valves, control systems, etc. configured for the rectification tower body in order to achieve rectification.

[0014] The transportation of each material in this embodiment can be controlled by pipelines, pumps, valves, and control systems, and the temperature of the materials can be adjusted by various heaters, heat exchangers and other equipment.

[0015] The content in this embodiment is the content in weight percentage unless otherwise specified.

[0016] The present invention mainly comprises the following steps to the processing method of the mixed solution containing Virahol, acetonitrile, triethylamine and water:

[0017] The mixed solution is proportioned with one or more of acetonitrile, triethylamine and water to form the first material of acetonitrile, triethylamine and water having a ternar...

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Abstract

The invention relates to a treatment method of a mixed solution containing isopropanol, acetonitrile, triethylamine and water. The method comprises the following steps: proportioning a mixed solution with one or more of acetonitrile, triethylamine and water to form a first material of acetonitrile, triethylamine and water with a ternary azeotropic ratio; rectifying the first material in a rectifying tower to form a second material of a ternary azeotrope of acetonitrile, triethylamine and water at the top of the tower, and an isopropanol product at the bottom of the tower; then dehydrating the second material to obtain a third material of triethylamine and acetonitrile, and separating the third material to obtain a triethylamine product and an acetonitrile product respectively. The treatment method provided by the invention can effectively treat the waste liquid containing isopropanol, acetonitrile, triethylamine and water generated in the biopharmaceutical industry, solves the problem that components are difficult to separate due to azeotropy among the components, and the components formed after treatment can directly form a product or form a mixed liquid which can be easily separated by the prior art. Therefore, the waste liquid is easy to treat and recycle.

Description

technical field [0001] The invention relates to a treatment method for a mixed liquid containing isopropanol, acetonitrile, triethylamine and water. Background technique [0002] There are 8 azeotropes in the isopropanol-acetonitrile-triethylamine-water waste liquid produced in the biopharmaceutical industry, and isopropanol, acetonitrile and water are miscible, and triethylamine and water will dissolve differently at different temperatures properties, which cannot be separated by ordinary rectification. Contents of the invention [0003] Main object of the present invention is to provide a kind of processing method containing the mixed liquor of Virahol, acetonitrile, triethylamine and water, comprises the following steps: [0004] The mixed solution is proportioned with one or more of acetonitrile, triethylamine and water to form the first material of acetonitrile, triethylamine and water having a ternary azeotropic proportion, [0005] The first material is rectified ...

Claims

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Application Information

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IPC IPC(8): C07C253/34C07C255/03C07C209/86C07C211/05C07C29/80C07C31/10C02F9/10C02F1/04C02F1/44C02F101/34C02F101/38
CPCC07C253/34C07C209/86C07C29/80C02F1/04C02F1/048C02F1/447C02F2101/38C02F2101/34C07C255/03C07C211/05C07C31/10
Inventor 邵峰梁倩李浩南张群辉
Owner 索闻特环保科技(上海)有限公司
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