Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Process for preparing activated carbon for air-raid shelters

A technology of civil air defense engineering and preparation technology, which is applied in the field of activated carbon, and can solve the problems of single agent type and composition, no secondary impregnation process, insufficient agent loading, etc., and achieve good protection effect, fast adsorption rate and long protection time.

Active Publication Date: 2018-04-20
宁夏浦士达环保科技有限公司
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation process of activated carbon for air purification in the prior art does not take into account the water capacity of activated carbon in terms of selection principles. The adsorption amount of activated carbon to pharmaceuticals depends on the size of its water capacity. If the effect is not achieved, unnecessary waste will be caused if the amount of medicament added exceeds the water capacity; in terms of medicament preparation, the types and ingredients of the medicament in the prior art are relatively single, and the protection time is insufficient, and there are fewer groups that can react; There is no secondary impregnation process, the agent is not sufficiently loaded; the added agent is not fully cured, which makes the later protection time insufficient and the effect is not good

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The quality of activated carbon-based carbon is 100Kg, the water capacity is 85%, and the first mixed solution is 89.25Kg, including about 7.68Kg of copper sulfate, about 10.53Kg of ammonium bicarbonate, about 3.03Kg of potassium permanganate, about 34Kg of ammonia water, and about 34Kg of pure water. The second mixed solution is 0.22Kg, including 0.138Kg of ammonia water and 0.082Kg of magnesium nitrate, and the fourth mixed solution is 89.25Kg, including 71.4Kg of warm water and 17.85Kg of ammonia water. Wherein the ammonia water is common industrial ammonia water. See Example 2 for the preparation method.

Embodiment 2

[0036] The mass of activated carbon-based carbon is 120Kg, the water capacity is 90%, and the first mixed solution is 113.4Kg, including about 9.75Kg of copper sulfate, about 13.38Kg of ammonium bicarbonate, about 3.86Kg of potassium permanganate, about 43.21Kg of ammonia water, and about 43.21Kg of pure water , the second mixed solution 0.264Kg, wherein ammonia 0.166Kg, magnesium nitrate 0.098Kg, the fourth mixed solution 113.4Kg, wherein warm water 90.72Kg, ammonia 22.68Kg. Wherein the ammonia water is common industrial ammonia water.

[0037] The preparation method is as follows:

[0038] S1 Selected raw materials, choose activated carbon as the base carbon, the moisture content of activated carbon is not more than 3%, the strength is not less than 85%, and the protection time against benzene vapor is not less than 45min;

[0039] S2 Prepare the first mixed solution, mix pure water and ammonia water, add copper sulfate while stirring, heat to 40-60°C, slowly add ammonium b...

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 process for preparing activated carbon for air-raid shelters. The process comprises the following steps: finely selecting raw materials, preparing a first mixed liquid, preparing a second mixed liquid, preparing a third mixed liquid, soaking, calcining, preparing a fourth mixed liquid, performing secondary soaking, and performing secondary calcining. The process has the advantages that the produced activated carbon for air-raid shelters has the advantages of being high in strength, good in adsorption property, large in adsorption capacity, small in ash content, rapidin adsorption velocity, long in protection time, good in protection effect, and the like, has very good effects in industrial waste gas treatment, prevention of toxic and harmful gases, and the like,and particularly has excellent adsorption properties which are comparable by common granular carbon for benzene, hydrocyanic acid and chloroethane in waste gases; meanwhile, due to the product, defects of conventional coal columnar carbon are solved, the field of activated carbon is further widened, defects of the coal columnar carbon are further alleviated, and a relatively excellent product is provided for waste gas treatment, toxic and harmful gas prevention, and the like.

Description

technical field [0001] The application relates to activated carbon, in particular to a preparation process of activated carbon for civil air defense engineering. Background technique [0002] As a very good filter medium, activated carbon has been applied in many fields, especially in the field of environmental protection, whether it is to purify water or air, it has become the current protagonist. At present, the main preparation process of activated carbon for civil air defense projects in the market is that the product quality of the main formed carbon is not very good, the adsorption capacity is limited, and it does not have a good adsorption capacity for special adsorbates, that is, toxic and harmful gases. [0003] The preparation process of activated carbon for air purification in the prior art does not take into account the water capacity of activated carbon in terms of selection principles. The adsorption amount of activated carbon to pharmaceuticals depends on the ...

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): C01B32/354
Inventor 王洪炳杨金杯
Owner 宁夏浦士达环保科技有限公司
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com