Industrial organic waste salt treatment process

A kind of salt treatment and organic technology, applied in the field of industrial organic waste salt treatment process, can solve the problems of high investment and operation cost, complex treatment process, large energy consumption, etc., to reduce investment and operation cost, increase reaction probability, reduce sulfuric acid The effect of dosage

Active Publication Date: 2020-01-17
SHANGYU ZHONGLIAN ENVIRONMENTAL PROTECTION CO LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-temperature incineration method: high-temperature incineration of industrial waste salt to achieve the purpose of removing organic matter in waste salt; due to the high-temperature treatment method, affected by factors such as temperature and technology, waste salt is prone to melting or softening and agglomeration, and sticks to the equipment In this process, the equipment will be severely corroded or obstructed, making the equipment unable to operate continuously; therefore, it is difficult to apply it to industrial production technology
In addition, due to the high temperature treatment method, the energy consumption is large, and the investment and operation costs are high
Washing method: Wash the industrial waste salt with water and chemical detergent, neutralize and wash away the organic matter and impurities in the waste salt. This method can be used for industrial waste salt with a single organic component, low value, and fixed content. For industrial waste salt with many types of organic matter, high value and unstable content, it is difficult to moderately and reasonably control the amount of detergent, and it is difficult to completely remove organic matter in waste salt; in addition, after using this method to treat industrial waste salt, In the liquid, toxic and harmful organic substances or secondary pollutants may remain, and they still need to be treated harmlessly, and the treatment process becomes more and more complicated; therefore, it is not suitable for promotion and use in industrial production

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
  • Industrial organic waste salt treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment one of the present invention: as figure 1 As shown, an industrial organic waste salt treatment process includes the following steps: (1) Weigh 100KG of organic waste salt slag and pour it into the reactor, add 400L of water and stir to dissolve the organic waste salt slag in water to form a waste salt solution; (2) Add 220KG of sulfuric acid into the reactor, stir to raise the temperature, and use a water pump to evacuate, the temperature T=75°C, the solution boils, and react for 40 minutes, then add 100KG of organic waste salt residue and 400L of water, stir, and react in vacuum for 60 minutes. Under negative pressure, the hydrogen chloride gas is pumped into the absorption tower to be absorbed by water and converted into hydrochloric acid; (3), the sodium sulfate solution formed after the reaction is pumped into another reactor through the pump body, at 10-20°C Stir under low pressure, cool and crystallize for 4 hours, and then filter through a filter press...

Embodiment 2

[0018] Embodiment two of the present invention: as figure 1 As shown, an industrial organic waste salt treatment process includes the following steps: (1) Weigh 150KG of organic waste salt residue and pour it into the reactor, add 600L of water and stir to dissolve the organic waste salt residue in water to form a waste salt solution; (2) Add 220KG of sulfuric acid to the reactor, stir to raise the temperature, and use a water pump to evacuate the solution. The temperature T=75°C boils the solution and reacts for 60 minutes. Then add 50KG of organic waste salt residue and 200L of water and stir for 40 minutes in vacuum. Under negative pressure, the hydrogen chloride gas is pumped into the absorption tower to be absorbed by water and converted into hydrochloric acid, and the incompletely absorbed hydrogen chloride gas is absorbed through the secondary absorption tower with alkaline water; (3), the sodium sulfate formed after the reaction Add water to the solution and pour it in...

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 an industrial organic waste salt treatment process which comprises the following steps: adding a certain amount of waste salt solution into a reactor; then adding sulfuric acidto stir for a warming reaction, and after the reaction, continuously adding a certain amount of waste salt solution; sucking hydrogen chloride gas in a resultant of reaction in a negative pressure condition into an absorption tower to be absorbed by water to be finally converted into a by-product hydrochloric acid; and carrying out cooling, crystallizing, filtering, filter cake washing, neutralizing, adsorbing, filtering and drying on another resultant sodium sulfate to finally prepare a product sodium sulfate. According to the process, waste salt is recycled, and organic matters can be removed in a normal temperature condition without high temperature incineration, so that the energy source is saved, the investment and operating cost are reduced, and the produced sodium sulfate is recycled, so that a purpose of turning waste into wealth is achieved.

Description

technical field [0001] The invention relates to a process for treating industrial organic waste salt, which belongs to the field of environmental protection. Background technique [0002] In the fields of pesticides, pharmaceuticals, fine chemicals, organic chemicals, dyestuffs, coal chemicals and other chemical industries, a large amount of industrial waste salt is produced in industrial production. Traditional stacking or landfill methods not only occupy a large amount of land resources, but also require high processing costs. Improper use will also cause serious pollution of land and groundwater resources, posing a great threat to human life and the living environment. With the improvement of people's awareness of the hazards of industrial waste, the strengthening of the state's efforts to remediate industrial hazardous waste, and the development of related technical means, the harmless treatment and methods of industrial waste salt have attracted people's attention. At ...

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 Applications(China)
IPC IPC(8): B09B3/00B09B5/00C01D5/00
CPCB09B5/00C01D5/00B09B3/80
Inventor 阮金木吕赛君戚水法孙熠
Owner SHANGYU ZHONGLIAN ENVIRONMENTAL PROTECTION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap