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

Method for preparing conductive ceramic product from pyrite cinder

A technology of pyrite slag and conductive ceramics, which is applied in the field of conductive ceramic products, can solve the problems of small consumption of slag, cost constraints, and limited application, and achieve the effects of high strength, low cost, and wide application

Inactive Publication Date: 2016-12-07
无锡市华东电力设备有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The slag has low iron grade and cannot be used as raw material for ironmaking. The consumption of slag is not large due to the small demand for the production of solid sewage treatment agents and iron oxide red. It is used as an auxiliary ingredient for cement and replaces iron ore to make cement. Mineralizers for firing are not widely used
Therefore, how to efficiently and cost-effectively utilize medium and low-grade pyrite slag on a large scale is a bottleneck that restricts the direct utilization of new technologies for medium and low-grade pyrite.

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 1

[0017] A method for preparing conductive ceramic products from pyrite slag, comprising the steps of:

[0018] a. Pretreatment: Grinding pyrite slag to particle size ≤ 0.1mm; coal powder is commercially available powder with particle size ≤ 0.1mm; industrial analysis of coal powder shows 19.38% volatile matter and 61.51% fixed carbon , moisture 0.59%, ash content 18.51%; the percentages are mass percentages, the same as the following; the main components and mass percentages of pyrite slag are: SiO2 30.47%, Al2O3 25.82%, Fe2O3 28.38%; the same as the following; b. Ingredients: Mix according to the mass ratio of pyrite slag: reducing agent coal powder at 10:1, and weigh 3.5kg of the mixture; c. Mixing: mix the common mixture of pyrite cinder and reducing agent coal powder in the grinding Mix and grind in the machine until Blaine's specific surface area is 450m2 / kg, make it fully mixed evenly, and make the mixture; d, molding: take 20g of the mixture, put it into a forming mold w...

Embodiment 2

[0021] A method for preparing conductive ceramic products from pyrite slag, comprising the steps of:

[0022] a. Pretreatment: Grinding pyrite slag to ≤ 0.1mm; coal powder is commercially available powder with particle size ≤ 0.1mm;

[0023] b. Ingredients: Mix according to the mass ratio of pyrite slag: reducing agent coal powder at 10:1, and weigh 3.5kg of the mixture; c. Mixing: mix the common mixture of pyrite cinder and reducing agent coal powder in the grinding Mix and grind in the machine until Blaine's specific surface area is 450m2 / kg, make it fully mixed evenly, and make the mixture; d, molding: take 20g of the mixture, put it into a forming mold with a diameter of 25mm, and put it in a compression test machine Under the speed of 200 N / S, the target pressure is 30MPa, and the holding time is 60 s for compression molding to obtain a molded sample with a molded aspect ratio of 20 / 25; e. Roasting: put the molded sample in a high-temperature furnace with a reducing atmos...

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
electrical resistivityaaaaaaaaaa
compressive strengthaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A method for preparing a conductive ceramic product from pyrite cinder comprises the following steps: 1) pretreatment; 2) batching; 3) mixing; 4) moulding; 5) roasting; and 6) preparation of a finished product. By the preparation technology of the invention, electrical resistivity of a conductive ceramic product can reach 0.6 Omega.m and above, compressive strength of the conductive ceramic product can be adjusted within the range of 5-120 MPa, and use amount of pyrite cinder is greater than 80%. The conductive ceramic product can be used as a building structural material, and also can be used in electrotechnics, resistance to electromagnetic interference, electromagnetic shielding, industrial electrostatic prevention, electric heaters, power equipment grounding engineering and steel bar cathodic protection. The conductive ceramic product is a multifunctional intelligent product.

Description

technical field [0001] The invention belongs to a method for preparing conductive ceramic products used in places such as building inner walls or floors by using solid industrial waste residue, and relates to a method for preparing conductive ceramic products from pyrite slag. The prepared conductive ceramic product is especially suitable for preparing conductive antistatic materials, building conductive and heating interior wall tiles or floor tiles, and can also be used in other various applications requiring low resistivity characteristics. Background technique [0002] Pyrite cinder is a waste residue discharged from the process of using pyrite to prepare sulfuric acid or sulfur. my country is rich in pyrite resources, accounting for 10% of the world's total reserves, ranking third. Only the original Liupanshui economic zone in southern Sichuan, northern Yunnan, and western Guizhou has reserves of pyrite resources of 6.5 billion tons, and prospective reserves of 40 billi...

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): C04B33/135H01B1/14H01B1/16H01B1/18
CPCC04B33/1328C04B33/1355C04B2235/3201C04B2235/3208C04B2235/445C04B2235/448C04B2235/96H01B1/14H01B1/16H01B1/18Y02P40/60
Inventor 丁建峰
Owner 无锡市华东电力设备有限公司
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