Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for utilizing titanium tetrachloride dust collection slag

A technology of titanium tetrachloride and dust collection, which is applied in the field of utilization of titanium tetrachloride dust collection, and can solve the problems such as the impact of titanium slag quality

Active Publication Date: 2021-08-27
宜宾天原海丰和泰有限公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pelletizing of fine-grained titanium concentrate requires a binder. At present, it is mainly inorganic substances containing silicon, aluminum and magnesium (such as bentonite). Additional binders will affect the quality of titanium slag.

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 utilizing titanium tetrachloride dust collection slag
  • Method for utilizing titanium tetrachloride dust collection slag
  • Method for utilizing titanium tetrachloride dust collection slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Beat the dust slag obtained in the production process of titanium tetrachloride, add deionized water to the dust slag for stirring and beating, the stirring time is 30min, and the mass ratio of dust collection slag and deionized water is 1:5 , then add a NaOH solution with a concentration of 40% to react, control the pH of the slurry to be 6 to 9, and then use a plate and frame filter to filter to obtain a filter cake 1 and a filtrate 1;

[0041] (2) Add metal precipitant Na in filtrate 1 2 SO 4 and Na 2S precipitates heavy metal ions, and then adds a flocculant for sedimentation. After the sedimentation is completed, the solid-liquid separation obtains filter cake 2 and filtrate 2; The mass concentration of is 300ppm; The add-on of metal precipitation agent is 2 times of calcium, iron ion molar concentration in the filtrate 1;

[0042] (3) After mixing filter cake 1 and filter cake 2 with fine-grained titanium concentrate and pressing them into pellets, the mass...

Embodiment 2

[0051] (1) Beat the dust slag obtained in the production process of titanium tetrachloride, add deionized water to the dust slag for stirring and beating, the stirring time is 30min, and the mass ratio of dust collection slag and deionized water is 1:5 , and then add NaOH solution to react, control the pH of the slurry to be 6-9, and then use a plate and frame filter to filter to obtain filter cake 1 and filtrate 1;

[0052] (2) Add metal precipitant Na in filtrate 1 2 SO 4 and Na 2 S precipitates heavy metal ions, and then adds a flocculant for sedimentation. After the sedimentation is completed, the solid-liquid separation obtains filter cake 2 and filtrate 2; The mass concentration of is 300ppm; The add-on of metal precipitation agent is 2 times of calcium, iron ion molar concentration in the filtrate 1;

[0053] (3) After mixing the filter cake 2 with the fine-grained titanium concentrate and pressing it into pellets, the mass ratio of the quality of the filter cake 2 t...

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 utilizing titanium tetrachloride dust collection slag. The method for utilizing titanium tetrachloride dust collection slag comprises the following steps: (1) beating dust collection slag obtained in a titanium tetrachloride production process, adding a NaOH solution to carry out a reaction, controlling the pH value of the slurry to 6-9, and filtering to obtain a filter cake 1 and a filtrate 1; (2) adding a metal precipitant into the filtrate 1 to precipitate heavy metal ions, then adding a flocculating agent to settle, and after settling is completed, carrying out solid-liquid separation to obtain a filter cake 2 and filtrate 2; and (3) evenly mixing a binder and the fine-fraction titanium concentrate and then pressing the mixture into pellets, wherein the mass ratio of the binder to the fine-fraction titanium concentrate is 1: (2-4). According to the method, the mixture of the filter cake 1 and the filter cake 2 or the filter cake 2 is adopted as a binding agent, the fine-fraction titanium concentrate is pressed into the pellets, the compressive strength of the obtained pellets is larger than 126 N / P-1, the strength of the pellets completely meets the use requirement, and only lower than 6% of the pellets are broken and pulverized in the process that the pellets are conveyed to a reduction furnace through a belt and sintered.

Description

technical field [0001] The invention relates to the technical field of titanium chemical industry, in particular to a method for utilizing titanium tetrachloride to collect dust residue. Background technique [0002] Titanium tetrachloride is the raw material for the production of titanium sponge and titanium dioxide by chloride method. In the process of boiling chlorination to produce titanium tetrachloride, the solid components such as petroleum coke and titanium-rich materials (high titanium slag / rutile) are mainly added from the middle of the chlorination furnace, and the liquid chlorine is gasified and sent from the bottom to form Fluidized bed, chlorination reaction occurs between materials to generate crude titanium tetrachloride gas. In the process of industrial production of titanium tetrachloride, the output from the chlorination furnace is mixed gas, which is generally called furnace gas. In addition to the main titanium tetrachloride gas in the furnace gas, 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
IPC IPC(8): C22B1/248C22B1/02
CPCC22B1/248C22B1/02C22B1/2406
Inventor 唐勇徐慧远周高明温小虎
Owner 宜宾天原海丰和泰有限公司