Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for recovering acetone from volatile mixed gas of solvent discharged from vacuum system

A vacuum system and mixed gas technology, applied in the field of medicine and chemical industry, can solve the problem of high energy consumption, and achieve the effect of reducing energy consumption, production cost and loss.

Inactive Publication Date: 2013-01-02
马杰
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires high energy consumption, and there are many potential safety hazards

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for recovering acetone from volatile mixed gas of solvent discharged from vacuum system
  • Method for recovering acetone from volatile mixed gas of solvent discharged from vacuum system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Attached below Figure 1-Figure 2 and the examples detailing the invention, figure 1 Clearly show the process flow of the present invention: a method for recovering acetone from the solvent volatilization mixed gas discharged from the vacuum system is composed of two sets of vacuum systems, two sets of in-position gas collection systems, one set of gas collection systems, one set of gas The processing system and control system form an acetone recovery system, and its specific process steps are as follows:

[0025] a. Gas collection

[0026] The gas discharged from the vacuum system is introduced into the on-site gas extraction system by the gas collection pump in the on-site gas extraction system. The pumping rate of a vacuum system is 300m3 / hr, 2 sets; the flow rate is 0.4-0.8 cubic / hour, and it works 24 hours a day ;The pumping rate of another set of vacuum system is 500m3 / hr, 2 units; the flow rate is 0.6-1.0 cubic / hour, and it works for 18 hours; while the circula...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for recovering acetone from volatile mixed gas of a solvent discharged from a vacuum system. An acetone recovery system consists of the vacuum system, an on-site gas recovery system, a gas collection system, a recovery system and a control system, the process comprises the steps of gas collection, first gas-liquid separation, secondary gas-liquid separation, gas-liquid heat exchange absorption, acetone recovery and the like, gas after the recovery is realized is directly discharged, and the acetone is recovered through a distillator after a recovered absorption liquid reaches certain concentration. The method has the advantages of simple and convenient operation, simple process, high recovery efficiency and recovery purity of an acetone solvent, high economical benefit, and suitable popularization and application, and ensures that the gas and liquid discharge after the recovery satisfies the environmental protection standard.

Description

Technical field [0001] The invention relates to the technical field of medicine and chemical industry, in particular to a method for recovering acetone from solvent volatilization mixed gas discharged from a vacuum system. Background technique [0002] In the production process of pharmaceutical chemical production and other related industries, the post-processing methods for raw materials and other products generally adopt the traditional process of solvent washing, vacuum filtration, and vacuum drying. During this period, the solvent and water are vacuum Pumps away for washing and drying purposes. The solvent washing liquid uses acetone solvent. In the traditional production process, a large amount of acetone solvent needs to be volatilized, which not only causes waste of acetone solvent and increases production costs, but also pollutes the production environment with volatile gas of acetone solvent. Now, relevant production enterprises in this field have been aware of th...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C49/08C07C45/28B01D5/00
Inventor 马杰王军晖
Owner 马杰