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

Method for preparation of calcium chlorate and co-production of potassium chlorate and calcium chloride using chlor-alkali calcium carbide slag

A calcium chlorate, calcium chloride technology, applied in the direction of chloric acid, chlorate, calcium/strontium/barium halide, etc., can solve the problems of land erosion, large land, easy to leak and pollute the road, etc., and achieve equipment investment The effect of low, simple and easy operation steps

Inactive Publication Date: 2011-06-08
汪晋强
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbide slag has a moisture content of 40% to 50% and is in the form of paste. It is easy to leak and pollute the road surface during transportation. Long-term accumulation not only occupies a large amount of land, but also has a serious erosion effect on the land.

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 preparation of calcium chlorate and co-production of potassium chlorate and calcium chloride using chlor-alkali calcium carbide slag
  • Method for preparation of calcium chlorate and co-production of potassium chlorate and calcium chloride using chlor-alkali calcium carbide slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for producing calcium chlorate and co-producing potassium chlorate and calcium chloride with chlor-alkali carbide slag, comprising the steps:

[0028] A: Put the chlor-alkali carbide slag into the ash tank (1), mix it with water to form an emulsion, and make the content of calcium hydroxide reach 120 grams per liter;

[0029] B: send the calcium carbide slag gained in step A to the chlorination tower (2) with the first pressure pump, at the same time, input chlorine gas in the chlorination tower (2), so that the mass ratio of calcium hydroxide and chlorine gas is 1: 1.16 Chlorination reaction, control the chlorination reaction temperature, keep the reaction solution not boiling, the chlorination reaction generates the reaction product containing calcium chlorate and calcium chloride; show the reaction end point with the chlorination table (3), when the chlorination table (3) When the hands of the meter are fixed, it indicates that the solution no longer absorbs...

Embodiment 2

[0036] A method for producing calcium chlorate and co-producing potassium chlorate and calcium chloride with chlor-alkali carbide slag, comprising the steps:

[0037] A: Put the chlor-alkali carbide slag into the ash tank (1), mix it with water to form an emulsion, and make the content of calcium hydroxide reach 120 grams per liter;

[0038] B: Send the calcium carbide slag gained in step A to the chlorination tower (2) with the first pressure pump, and at the same time, input chlorine gas in the chlorination tower (2), so that the mass ratio of calcium hydroxide and chlorine gas is 1: 0.70 to carry out Chlorination reaction, control the chlorination reaction temperature, keep the reaction solution not boiling, the chlorination reaction generates the reaction product containing calcium chlorate and calcium chloride; show the reaction end point with the chlorination table (3), when the chlorination table (3) When the hands of the meter are fixed, it indicates that the solution ...

Embodiment 3

[0045] A method for producing calcium chlorate and co-producing potassium chlorate and calcium chloride with chlor-alkali carbide slag, comprising the steps:

[0046] A: Put the chlor-alkali carbide slag into the ash tank (1), mix it with water to form an emulsion, and make the content of calcium hydroxide reach 120 grams per liter;

[0047] B: send the calcium carbide slag gained in step A to the chlorination tower (2) with the first pressure pump, meanwhile, input chlorine gas in the chlorination tower (2), make calcium hydroxide and chlorine gas pure substance mass ratio be 1: 1.00 carry out Chlorination reaction, control the chlorination reaction temperature, keep the reaction solution not boiling, the chlorination reaction generates the reaction product containing calcium chlorate and calcium chloride; show the reaction end point with the chlorination table (3), when the chlorination table (3) When the hands of the meter are fixed, it indicates that the solution no longer a...

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 preparation of calcium chlorate and co-production of potassium chlorate and calcium chloride using chlor-alkali calcium carbide slag. In the method, calcium hydrate in the chlor-alkali calcium carbide slag is reacted with chlorine to generate reaction products containing calcium chlorate and calcium chloride; the reaction products are filtered to remove impurities; the obtained filtrate is processed by cooling and settlement, calcium chlorate solid is precipitated, and the mixture is filtered again to obtain calcium chlorate solid and calcium chloride solution; the reaction products containing calcium chlorate and calcium chloride can undergo a metathesis reaction with potassium chloride to generate a mixed solution of potassium chlorate and calcium chloride; the mixed solution is filtered to remove impurities, and distilled at reduced pressure to precipitate potassium chlorate crystal; then the resulting mixed solution is filtered to obtain potassium chlorate crystal and calcium chloride solution; calcium chloride solution is distilled at reduced pressure, and condensed to obtain calcium chloride crystal product.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of chlor-alkali carbide slag, in particular to a method for producing calcium chlorate and co-producing potassium chlorate and calcium chloride with chlor-alkali carbide slag. Background technique [0002] Carbide slag is the waste residue produced when calcium carbide is used to produce acetylene, and its main component is Ca(OH) 2 , also contains a small amount of Fe 2 o 3 , SiO 2 and Al 2 o 3 Other metal oxides, hydroxides and a small amount of organic matter. Carbide slag is an important way to use a large amount of carbide slag as a raw material for cement production. It not only solves the problem of carbide slag discharge polluting the environment, realizes the comprehensive recycling of resources, but also saves limestone resources and reduces carbon dioxide emissions. However, with the development of industrialization in our country, the annual output of carbide slag is incr...

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): C01B11/14C01F11/22
Inventor 王嘉兴
Owner 汪晋强
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