Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnesium-containing ore desulfurization and denitrification slurry and synchronous desulfurization and denitrification method

A technology for desulfurization and denitrification, magnesium ore, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems that have not yet been reported on simultaneous wet desulfurization and denitrification

Inactive Publication Date: 2020-08-07
KUNMING UNIV OF SCI & TECH
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the wet desulfurization and denitrification process usually performs wet desulfurization and wet denitrification on the flue gas in sequence, and there is no report on simultaneous wet desulfurization and denitrification

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
  • Magnesium-containing ore desulfurization and denitrification slurry and synchronous desulfurization and denitrification method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] In the present invention, there is no special limitation on the preparation method of the magnesium-containing ore particles, as long as the magnesium-containing ore particles with the required particle size can be obtained. In the embodiment of the present invention, the preparation method of the magnesium-containing ore particles preferably includes the following steps :

[0024] The raw materials for preparing the magnesium-containing ore are sequentially crushed and ball-milled to obtain magnesium-containing ore particles.

[0025] In the present invention, there is no special limitation on the particle size, crushing and ball milling methods of the raw materials for the preparation of the magnesium-containing ore, as long as the magnesium-containing ore particles with the required particle size can be obtained. In the embodiment of the present invention, the degree of crushing is preferably based on the absence of lumpy materials; the rotational speed of the ball m...

Embodiment 1

[0035] (1) Preparation of magnesium-containing ore desulfurization and denitrification slurry:

[0036] The magnesite (magnesium content is 26.89wt%) is crushed into a lump-free material, and then ball milled into magnesite particles with a D90 of 75 μm; the specific parameters of the ball mill are that the ball-to-material ratio is 1:1, and the speed is 480rpm ;The ball milling time is 15min;

[0037] Mix magnesite particles, sodium chlorite and water to obtain magnesium-containing ore desulfurization and denitrification slurry, wherein the solid-to-liquid ratio of the magnesium-containing ore desulfurization and denitrification slurry is 1:20 by mass ratio, and the concentration of sodium chlorite is 10mmol / L;

[0038] (2) use figure 1 The device shown in this example tests the desulfurization and denitrification performance of the magnesium-containing ore desulfurization and denitrification slurry, specifically: put 200 mL of the magnesium-containing ore desulfurization an...

Embodiment 2

[0040] (1) Preparation of magnesium-containing ore desulfurization and denitrification slurry:

[0041] The phosphate rock (magnesium content is 0.55wt%) is crushed into a lump-free material, and then ball milled into phosphate rock particles with a D90 of 75 μm; the specific parameters of the ball mill are that the ball-to-material ratio is 1.5:1, and the rotating speed is 500rpm; The time is 15 minutes;

[0042] Mix phosphate rock particles, sodium chlorite and water to obtain magnesium-containing ore desulfurization and denitrification slurry, wherein the solid-to-liquid ratio of the magnesium-containing ore desulfurization and denitrification slurry is 1:10 by mass ratio, and the concentration of sodium chlorite is 15mmol / L;

[0043] (2) use figure 1 The device shown in this example tests the desulfurization and denitrification performance of the magnesium-containing ore desulfurization and denitrification slurry, specifically: put 200 mL of the magnesium-containing ore...

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
D90aaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of environmental engineering and metallurgy, and particularly relates to a magnesium-containing ore desulfurization and denitrification slurry and a synchronous desulfurization and denitrification method. The magnesium-containing ore desulfurization and denitrification slurry provided by the invention comprises magnesium-containing ore particles, sodiumchlorite and water, the solid-to-liquid ratio of the magnesium-containing ore desulfurization and denitrification slurry is 1: (5-200) by mass, and the concentration of the sodium chlorite is 5-50 mmol / L. In the invention, the magnesium-containing ore particles and the sodium chlorite have a synergistic effect, so that desulfurization and denitrification can be effectively carried out. In addition, the synchronous desulfurization and denitrification method provided by the invention is simple and easy to operate, and the synchronous desulfurization and denitrification conditions are mild.

Description

technical field [0001] The invention relates to the technical fields of environmental engineering and metallurgy, in particular to a magnesium-containing ore desulfurization and denitrification slurry and a method for synchronous desulfurization and denitrification. Background technique [0002] my country's mature technology for treating sulfur dioxide and nitrogen oxides at the same time is mainly the combination of wet desulfurization (WFGD) and selective catalytic reduction technology (SCR), but the catalyst cost accounts for 30-30% of the investment cost in the selective catalytic reduction technology. 55%, and sulfur poisoning is prone to cause catalyst deactivation, and there are problems such as easy ammonia leakage in SCR technology, which has a great impact on the removal of nitrogen oxides. In recent years, the wet desulfurization and denitrification process combined by wet desulfurization and wet denitrification is considered to be a more promising process because...

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
IPC IPC(8): B01D53/80B01D53/60
CPCB01D53/80B01D53/60B01D2251/402B01D2251/304B01D2251/60B01D2258/0283
Inventor 孙鑫骆燕苏包加成李凯王驰王飞宁平
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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