Exbead for removing inorganic acid and manufacturing method therefor

A technology of inorganic acids and beads, applied in separation methods, chemical instruments and methods, transportation and packaging, etc., can solve the problems of limited neutralization efficiency, problems with removal efficiency, inaccessibility, etc., and achieve excellent morphological stability, The effect of improving workability and increasing the degree of crushing

Active Publication Date: 2021-12-21
KOREA RES INST OF CHEM TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As a prior art for removing such inorganic acids, for example, in the following patent document 1, there is a method for removing strong acids and calcium carbonate using a mixture, but a violent exothermic reaction is caused, and there is still a problem in removal efficiency, and Due to the violent exothermic reaction and explosive neutralization, it is impossible to get close to the distance that can be put into practice. Due to the exothermic and neutralization efficiency, there is only a limit, so there are restrictions on use.

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
  • Exbead for removing inorganic acid and manufacturing method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Kaolin was put into a circular drum and rotated at 80 rpm for 9 hours to produce clay seed particles (moisture content: 10% by weight) with an average particle diameter of 2.0 mm. The produced seed particles were placed in a circular drum, and a powder obtained by mixing 33 parts by weight of slaked lime and 5 parts by weight of clay was added to 100 parts by weight of sodium bicarbonate to obtain a mixed raw material powder. The composition ratio of the above-mentioned seeds (excluding water content) and the above-mentioned mixed raw material powder was mixed at a weight ratio of 23:77. Next, while spraying 20 parts by weight of water with respect to 100 parts by weight of the raw material powder, the circular drum was rotated at 80 rpm to form a nucleus layer containing sodium bicarbonate, slaked lime and a clay binder on the seed surface. Granule-type beads having an average particle size of the formed beads of 3.4 mm were obtained, which were dried in an oven at 60°...

Embodiment 2

[0075] In the above-mentioned Example 1, after manufacturing the finally manufactured beads, with respect to 100 parts by weight of the manufactured beads, 100 parts by weight of calcium hydroxide, 20 parts by weight of kaolin and 10 parts by weight of flour were added to the shell layer forming composition, While spraying 15 parts by weight of water to 100 parts by weight of the added composition, the circular drum was rotated at 100 rpm to form a shell layer on the surface of the core particles, thereby producing beads for hydrofluoric acid removal. Then, the manufactured beads were put into a ceramic container, placed in an oven, and subjected to heat treatment at 60° C. for 30 hours, and beads were finally obtained. The average particle size of the final beads was 3.7 mm. As a result of the hydrofluoric acid removal rate test carried out by the same method as in Example 1 above, it can be confirmed that only 20 g is added to 10 ml of 52% hydrofluoric acid aqueous solution,...

Embodiment 3

[0077] In Example 2, when a mixture of bicarbonate and slaked lime was used to form the core layer, 3 parts by weight of tetraethoxysilane and 3-aminopropyltrimethoxy The same experiment as in Example 2 was carried out except that the base silane was used. As a result of the hydrofluoric acid removal rate test carried out by the same method as in Example 1 above, it can be confirmed that only 20 g is added to 10 ml of 52% hydrofluoric acid aqueous solution, and a reaction time of 30 minutes shows a hydrofluoric acid removal rate of about 97%. . In addition, when the manufactured inorganic acid remover was subjected to 100 drop tests at a height of 1 m, compared with Example 2, the bead breakage rate was 8% by weight, and compared with 11% by weight in Example 2, it can reach a significant Elevated effect.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
percent by volumeaaaaaaaaaa
Login to view more

Abstract

The present invention relates to a bead for removing inorganic acid and a manufacturing method therefor. More specifically, the present invention relates to a bead for removing inorganic acid, which has excellent performance in the removal of inorganic acid , can reduce potential risks during work, can minimize secondary contamination, and can dramatically increase removal efficiency, and to a manufacturing method therefor.

Description

technical field [0001] The present invention relates to a bead for removing inorganic acids and a method for producing the same. [0002] In more detail, it relates to a bead for removing inorganic acid that has excellent removal performance of inorganic acid, can reduce possible risk factors during operation, can minimize secondary pollution, and can significantly improve removal efficiency, and a manufacturing method thereof. Background technique [0003] As the use of various petrochemicals in the surroundings of life increases, the occurrence of chemical leakage accidents also increases. Such leakage accidents of chemical substances may cause risks such as toxicity, flammability, combustibility, secondary chemical reaction, or explosion depending on the leaked components, and have adverse effects on the human body and the environment, so effective countermeasures are required. [0004] Generally speaking, when inorganic acid leakage occurs at the production site, the ne...

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): A62D3/36A62D101/40
CPCB01D15/00B09B3/10B01J20/043B01J20/041B01J20/12B01J20/28016B01J20/3028A62D3/36A62D2101/40
Inventor 柳炳焕申守一陈恒教金泰卿金钟芸
Owner KOREA RES INST OF CHEM TECH
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