Method for producing zirconium tetrachloride by carbochlorination and method for producing zirconium sponge

A technology of zirconium tetrachloride and chlorination furnace, which is applied in the direction of zirconium halide, etc., can solve the problems of large system pulse, cumbersome process flow, and high cost, and achieve the effects of continuous and stable reaction, short process flow, and low cost

Active Publication Date: 2013-12-25
XINJIANG JINGSHUO NEW MATERIALS CO LTD
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of desiliconization zirconia needs to increase the desiliconization process of zircon sand, the process flow is cumbersome, and the cost is high; in addition, the chlorination reaction of desilication zirconia cannot be self-heated, and external heat needs to be added, and the chlorination reaction time is 21 to 22 hours, so the power consumption is still very large; and this method is intermittent operation, the pulse of the system is relatively large, which is likely to cause instability in production and product quality

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 producing zirconium tetrachloride by carbochlorination and method for producing zirconium sponge

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] 200-300 mesh zircon sand and 100-160 mesh petroleum coke are mixed according to the mass ratio of zircon sand to petroleum coke at 100:28 to form a mixture. Then, the mixture is added to the chlorination furnace to complete the feeding operation.

[0033] After feeding, preheat the solid mixture to 1230±10°C.

[0034] After completing the preheating, feed chlorine gas with a temperature of 1050±10°C into the chlorination furnace, so that the chlorine gas and the preheated mixture undergo a carbon boiling chlorination reaction, and maintain the reaction temperature at 1100±10°C to obtain A mixed gas mainly composed of zirconium tetrachloride.

example 2

[0036] Mix 300-400 mesh zircon sand and 100-160 mesh petroleum coke at a mass ratio of zircon sand to petroleum coke of 100:43 to form a mixture. Then, the mixture is added to the chlorination furnace to complete the feeding operation.

[0037] After the feeding is finished, air is introduced into the chlorination furnace to burn the petroleum coke in the mixture before the chlorination reaction, so that the solid mixture is preheated to 1450±10°C.

[0038] After preheating is completed, chlorine gas with a temperature of 550 ± 10°C is introduced into the chlorination furnace, so that the chlorine gas and the preheated mixture undergo a carbon boiling chlorination reaction, and the reaction temperature is maintained at 1070 ± 10°C to obtain A mixed gas mainly composed of zirconium tetrachloride.

example 3

[0040] 200-400 mesh zircon sand and 130-160 mesh petroleum coke are mixed according to the mass ratio of zircon sand to petroleum coke at 100:35 to form a mixture. Then, the mixture is added to the chlorination furnace to complete the feeding operation.

[0041] After the feeding is finished, air is introduced into the chlorination furnace to burn the petroleum coke in the mixture before the chlorination reaction, so that the solid mixture is preheated to 1350±10°C.

[0042] After completing the preheating, feed chlorine gas with a temperature of 800 ± 10°C into the chlorination furnace, so that the chlorine gas and the preheated mixture undergo a carbon boiling chlorination reaction, and maintain the reaction temperature at 1180 ± 10°C to obtain A mixed gas mainly composed of zirconium tetrachloride.

[0043] In summary, the beneficial effects of the present invention include the following aspects:

[0044] (1) It can directly chlorinate zircon sand, thus eliminating the st...

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
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for producing zirconium tetrachloride by carbochlorination and a method for producing zirconium sponge. The method for producing zirconium tetrachloride comprises the following steps: mixing 100 parts by weight of zircon sand with 26-45 parts by weight of carbonaceous reducing agent, and adding into a chlorination furnace; preheating a mixture to 1200-1500 DEG C; introducing chlorine at the temperature of 500-1100 DEG C, performing carbon-adding boiling chlorination reaction with the mixture, heating, and controlling the chlorination reaction temperature at 1050-1200 DEG C to obtain a reaction product. The method for producing zirconium sponge comprises the following steps: preparing the reaction product taking zirconium tetrachloride as a main component by using the method for producing zirconium tetrachloride; performing reduction treatment on the reaction product to obtain zirconium sponge. The methods provided by the invention have the beneficial effects of short process flow, low power consumption, low cost and continuous and stable reaction.

Description

technical field [0001] The invention relates to the technical field of sponge zirconium smelting, in particular to a method for producing zirconium tetrachloride directly by carbon-added boiling chlorination on zircon sand, and a method for producing zirconium tetrachloride using the carbon-added boiling chlorination. The invention relates to a method for preparing zirconium sponge from a product obtained by the zirconium tetrachloride method. Background technique [0002] The abundance of zirconium in the earth's crust is about 220Lg / g, ranking 20th above elements such as nickel, zinc, copper, tin, lead and cobalt, and China's zirconium reserves rank about 9th in the world. Metal zirconium and its zirconium alloys have outstanding nuclear properties, excellent corrosion resistance and mechanical properties. In 2012, the production capacity of industrial-grade zirconium sponge in my country was about 1600 tons per year, and on September 4, 2012, the State Nuclear Power Tech...

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): C01G25/04B22F9/16
Inventor 王建鑫陆平刘森林杨仰军
Owner XINJIANG JINGSHUO NEW MATERIALS 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