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Combined rectifying column and application thereof

A rectification column and combined technology, applied in the field of combined multi-purpose rectification devices, can solve the problems of inapplicable small-scale solvent separation and recovery, complex composition, etc.

Inactive Publication Date: 2015-02-18
李桂芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of the equipment is relatively complicated, and it is not suitable for small-scale solvent separation and recovery

Method used

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  • Combined rectifying column and application thereof
  • Combined rectifying column and application thereof
  • Combined rectifying column and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] In this embodiment, the normal-pressure rectification of n-hexane is taken as an example, and a laboratory scale glass device (such as Figure 6 ),by figure 2 The three-piece assembly structure shown, and the method of the third aspect of the present invention are used to specifically illustrate the operation of the present invention. The operation method of this embodiment includes the following steps:

[0140] 1) Put an appropriate amount of glass column filler 5 into the inner casing 13 of the combined rectification column, put the inner casing 13 filled with the filler into the middle casing 12 through the opening at the top of the middle casing 12, and tighten it slightly , so that the two interfaces are sealed through the glass grinding mouth; then they are set in the outer cylinder 11 through the opening at the top of the outer cylinder 11, and slightly tightened, so that the two interfaces are sealed through the glass grinding mouth;

[0141] 2) Inject 2000mL...

Embodiment 2

[0147] In the present embodiment, the vacuum distillation of rose essential oil is taken as an example, and a laboratory scale glass device (such as Figure 7 ),by image 3 The shown two-piece assembly structure and the method of the third aspect of the present invention are used to illustrate the operation of the present invention. The operation method of this embodiment includes the following steps:

[0148] 1) Put an appropriate amount of stainless steel ring packing 5 into the inner casing 13 of the combined rectification column, and set the inner casing 13 with the packing on the outer cylinder 11 / intermediate casing 12 through the opening at the top of the middle casing 12. Tighten slightly in the sleeve, so that the interface between the two is sealed through the glass grinding port;

[0149] 2) Inject 2000mL of rose crude oil into a 3L three-necked rectification bottle 2 through mouth a of rectification bottle 2, add an appropriate amount of zeolite, then seal mouth ...

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Abstract

The invention relates to a combined rectifying column and application thereof, in particular to a combined rectifying column which is characterized by comprising an outer column body, a middle casing pipe and an inner casing pipe, wherein the main body parts of the outer column, the middle casing pipe and the inner casing pipe are tubular parts which are arranged with a same axis center. The invention further relates to a rectifying device with the combined rectifying column, and a method for rectifying a material to be rectified by using the combined rectifying column and the rectifying device. The device and the method provided by the invention have the characteristics that the washing is easy, the replacement is convenient when multiple fillers are used, the purity of a product is high, the quality is stable, the rectification yield is relatively high, the separation cost is low, and no potential safety hazard is generated in the rectification process, and moreover the types and the use amounts of the fillers can be changed according to different demands, so that the combined rectifying column has multiple functions of solvent purification and recycling, natural production extraction, and the like.

Description

technical field [0001] The present application relates to a compound separation and purification device in the field of chemistry and chemical engineering, in particular to components for rectification and a combined multipurpose rectification device using the components, as well as their applications. Background technique [0002] Rectification is a distillation method that uses reflux to obtain high-purity separation of liquid mixtures. Its basic principle is to partially vaporize the liquid mixture, and use the characteristics of different volatilities (relative volatility) of each component to achieve the unit operation for separation purposes. . A rectification tower is a tower-type vapor-liquid contact device for rectification, also known as a distillation tower. Traditionally, the industrial large-scale rectification device is called a rectification column, and the small-scale rectification device in the laboratory is called a rectification column. At present, most ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/14
Inventor 李桂芳
Owner 李桂芳
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