Chlorinated waste residue resource utilization method

A technology of recycling chlorinated waste slag, which is applied in the field of resource utilization of chlorinated waste slag, can solve the problem of high metal content and achieve the effect of facilitating precipitation

Active Publication Date: 2020-08-07
YIBIN HAIFENG HERUI +2
View PDF14 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a resource utilization method of chlorination waste re

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
  • Chlorinated waste residue resource utilization method
  • Chlorinated waste residue resource utilization method
  • Chlorinated waste residue resource utilization method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] The present invention will be further explained in combination with experiments. The slurry is made according to the mass ratio of chlorinated waste residue to water of 1:3, and then the titanium-rich material and petroleum coke are removed by filtration to obtain the mother liquor of chlorinated waste residue. , The results are shown in Table 1:

[0034] Table 1

[0035] ingredientFeCl 2 / FeCl 3

[0036] The specific steps of the experiment are as follows: each experimental group takes 400ml of mother liquor of chlorinated waste residue, adds urea of ​​different quality, and adds the amount as shown in Table 2. Stirs at 100r / min for 30min, after stirring, puts it into a 250mL hydrothermal reactor; The amount of chlorinated waste slag mother liquor added is controlled by different reserved spaces in the hydrothermal reactor. After the material is loaded, the hydrothermal reaction is carried out. The hydrothermal reaction temperature and hydrothermal reaction time are set...

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 chlorinated waste residue resource utilization method which comprises the following steps: (1) adding water into chlorinated waste residues, performing stirring, dissolving and slurrying, and then carrying out solid-liquid separation to remove a titanium raw material and a reducing agent petroleum coke to obtain chlorinated waste residue mother liquor; (2) adding a precipitant into the chlorinated waste residue mother liquor, performing uniform stirring, then adding into a hydrothermal reaction kettle, carrying out hydrothermal reaction, and carrying out solid-liquidseparation after the reaction is finished, so as to obtain solid and liquid; and (3) oxidizing and roasting the solid to obtain iron oxide red, and evaporating and crystallizing the liquid to obtain ammonium chloride. According to the method, urea is adopted as a precipitator, the pH value after hydrothermal reaction is controlled, the material volume in the hydrothermal reaction kettle is controlled, metal ions in the chlorinated waste residue mother liquor enter the iron oxide red product, the obtained ammonium chloride product is high in quality and low in metal ion impurity content, and the application environment range of ammonium chloride serving as a fertilizer is widened.

Description

technical field [0001] The invention relates to the technical field of chlorination titanium dioxide, in particular to a resource utilization method of chlorination waste residue. Background technique [0002] There are two main methods of producing titanium dioxide in the world: sulfuric acid method and chlorination method. Due to the advantages in environmental protection and product quality, the chlorination method has become the direction of industrial upgrading of the domestic titanium dioxide industry. Ebullient chlorination technology is the mainstream chlorination technology for the production of chlorination titanium dioxide and sponge titanium. Its main reaction process is to add titanium-rich materials, petroleum coke, and chlorine gas into the chlorination furnace according to the ratio. The chlorine gas is introduced from the bottom of the furnace. Under the temperature of , the above materials react chemically, and the main product is TiCl 4 , the obtained pr...

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): C01G49/06C01C1/16C05C3/00
CPCC01G49/06C01C1/164C05C3/00C01P2006/80
Inventor 罗云李露冯支斌
Owner YIBIN HAIFENG HERUI
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