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

Method for preparing binary oxide modified diatomite powder through recycled waste WC-TiC (wolfram carbide-titanium carbide) alloy

A binary oxide, diatomite technology, applied in chemical instruments and methods, other chemical processes, adsorption water/sewage treatment, etc., to achieve the effect of simplifying the preparation process, excellent photodegradation and adsorption performance, and increasing the contact area

Inactive Publication Date: 2015-01-07
BEIJING UNIV OF TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a method for preparing binary oxide-modified diatomite powder by recycling waste WC-TiC alloy, which solves the loading problem of nano-tungsten oxide and titanium oxide, and is used for degrading waste water. The modified diatomite plays the dual role of photodegradation and adsorption in the degradation of wastewater, and can be reused, which improves the degradation rate of wastewater. The process is simple and easy to complete.

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 preparing binary oxide modified diatomite powder through recycled waste WC-TiC (wolfram carbide-titanium carbide) alloy
  • Method for preparing binary oxide modified diatomite powder through recycled waste WC-TiC (wolfram carbide-titanium carbide) alloy
  • Method for preparing binary oxide modified diatomite powder through recycled waste WC-TiC (wolfram carbide-titanium carbide) alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take the pretreated waste WC-TiC alloy block and put it into a hydrothermal kettle, add 10ml of 16M concentrated nitric acid, 10ml of 30% hydrogen peroxide, and 0.5ml of hydrofluoric acid, and put it in an air-tight drying oven at 170°C for 24h. After the reaction, the precipitated powder was filtered out, rinsed with deionized water and ethanol until neutral, and dried to obtain WO 3 -TiO 2 Nanocomposite particles, reserved for future use. Take 10g of diatomite and add it to 10% 300ml hydrochloric acid solution, wash and stir it with deionized water until it becomes neutral, dry and calcinate it, then cool down with the furnace, and keep it for later use. WO 3 -TiO 2 Add 1 g of nanocomposite nanopowder, 2 g of diatomaceous earth, and 1 ml of silane coupling agent into the aqueous solution for ultrasonic impregnation for 12 hours. After drying the impregnated diatomite powder, put it into a muffle furnace for calcination at 500°C for 2 hours, and keep it for later u...

Embodiment 2

[0026] Take the pretreated waste WC-TiC alloy block and put it into a hydrothermal kettle, add 10ml of 16M concentrated nitric acid, 10ml of 30% hydrogen peroxide, and 1ml of hydrofluoric acid, and put it in a forced air drying oven for 24 hours at 170°C. After the reaction, the precipitated powder was filtered out, rinsed with deionized water and ethanol until neutral, and dried to obtain WO 3 -TiO 2 Nanocomposite particles, reserved for future use. Take 10g of diatomite and add it to 10% 300ml hydrochloric acid solution, wash and stir it with deionized water until it becomes neutral, dry and calcinate it, then cool down with the furnace, and keep it for later use. WO 3 -TiO 2 Add 1 g of nanocomposite nanopowder, 1 g of diatomaceous earth, and 1 ml of silane coupling agent into the aqueous solution for ultrasonic impregnation, and ultrasonic for 12 hours. After drying the impregnated diatomite powder, put it into a muffle furnace for calcination at 500°C for 2 hours, and ...

Embodiment 3

[0028] Take the pretreated waste WC-TiC alloy block and put it into a hydrothermal kettle, add 10ml of 16M concentrated nitric acid, 10ml of 30% hydrogen peroxide, and 2ml of hydrofluoric acid, and put it in a forced air drying oven at 160°C for 24h. After the reaction, the precipitated powder was filtered out, rinsed with deionized water and ethanol until neutral, and dried to obtain WO 3 -TiO 2Nanocomposite particles, reserved for future use. Take 10g of diatomite and add it to 10% 300ml hydrochloric acid solution, wash and stir it with deionized water until it becomes neutral, dry and calcinate it, then cool down with the furnace, and keep it for later use. WO 3 -TiO 2 Add 1 g of nanocomposite nanopowder, 0.5 g of diatomaceous earth, and 0.5 ml of silane coupling agent into the aqueous solution for ultrasonic impregnation, and ultrasonic for 12 hours. After drying the impregnated diatomite powder, put it into a muffle furnace for calcination at 400°C for 1 hour, and kee...

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 preparing binary oxide modified diatomite powder through recycled waste WC-TiC alloy, and belongs to the technical field of water treatment. Firstly, alloy blocks and diatomite are subjected to pretreatment; then mixed solution of the alloy blocks, concentrated nitric acid, hydrogen peroxide and hydrofluoric acid is subjected to hydrothermal reaction; after washing, filtering and drying are performed to the mixed solution, WO3-TiO2 nano-composite particles are obtained, then the WO3-TiO2 nano-composite particles and pretreated diatomite are subjected to ultrasonic immersing loading for 12 to 24h under the effect of adjuvant, and after washing, filtering, drying and calcining are performed to the WO3-TiO2 nano-composite particles and pretreated diatomite, the WO3-TiO2 nano-composite particles and pretreated diatomite can be used for degrading organic wastewater. The WO3-TiO2 modified diatomite powder has excellent light degradation, adsorption property and reutilization property.

Description

technical field [0001] The invention relates to recycling waste WC-TiC alloys to prepare tungsten oxide and titanium oxide composite powders, which are used to modify diatomite powders. More specifically, the use of diatomite powders modified by binary oxides to degrade wastewater belongs to Water treatment technology field. technical background [0002] Environmental pollution is the primary problem faced by human beings in the 21st century. The combination of diatomite and semiconductor photocatalysis technology is applied to environmental protection and governance, which brings new opportunities for environmental pollution and governance. [0003] As an important strategic element, tungsten resources are not only the guarantee of national security but also the foundation of economic development. In recent years, the reserves and exploitable quantities of tungsten resources in my country have been decreasing day by day. Attach great importance to the recycling of secondary...

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 Patents(China)
IPC IPC(8): B01J20/14B01J20/30C02F1/28C02F1/30
Inventor 王金淑李洪义杨亦龙吴俊书杜玉成李志飞
Owner BEIJING UNIV OF 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