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

Preparative technique for bentonite particles

A technology of bentonite and sodium-based bentonite, applied in silicates, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve pollution and other problems

Inactive Publication Date: 2013-06-05
孟宪清
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the roasting process, due to the loss of crystallization water inside the particles and the combustion of organic matter in the sludge itself, a large number of micropores are formed, thereby making porous sludge bentonite particles, which not only achieves the purpose of bentonite granulation, but also greatly broadens the application of bentonite in water treatment At the same time, it also solves the pollution problem caused by sludge and realizes the resource utilization of sludge

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] 1. Raw materials. Sodium-based bentonite, ground through a 200-mesh sieve, with a sludge moisture content of 65% for later use.

[0006] 2. Granulation. Mix the sludge and bentonite in a mass ratio of 1:4, add water and stir to a suitable viscosity, and extrude them into particles with a diameter of 1 mm.

[0007] 3. Sintering. The prepared particles were dried at 120°C, and then calcined at 800°C for 5 hours.

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 preparative technique for bentonite particles. Powdery sodium bentonite is used as raw materials, appropriate sludge is added, after being mixed evenly, the raw materials and the sludge are added with water, stirred to an appropriate viscosity and squeezed into small particles, and the small particles are roasted in a high temperature after being dried. Due to the facts that crystal water in the particles is lost during the roasting process and organics of the sludge are burned, a mass of micro pores are formed, so that multi-hole sludge bentonite particles are prepared, the aim of granulation of the bentonite is achieved, the application fields of the bentonite in water treatment are greatly broadened, meanwhile, the pollution problem caused by the sludge is solved, and resource utilization of the sludge is achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and more specifically relates to a technology for preparing bentonite particles. Background technique [0002] Bentonite is a clay mineral with montmorillonite as the main mineral component. It not only has good adsorption and ion exchange performance, but also has abundant resources and low price. Compared with other adsorbents with high cost and energy consumption such as activated carbon, but Powdered bentonite has good suspension and dispersibility, has swelling property, and forms mud when it meets water, with high turbidity and poor permeability. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art, and provide a new adsorbent product and preparation method. The bentonite particles produced by the technical proposal not only have good decolorization performance. And it has better mechanical strength and more particle p...

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): B01J20/16B01J20/28B01J20/30
Inventor 孟宪清
Owner 孟宪清
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