Method for preparing iron oxide black by using dregs of iron mud produced in chemical production with technique of reduction method of titanium powder

A production process and chemical production technology, which is applied in the field of pigment preparation, can solve the problems of environmental pollution, iron slag discharge, etc., and achieve the effect of low price

Inactive Publication Date: 2003-05-07
左伏根
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention has the following beneficial effects: one is waste utilization, which solves the problem of environme

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

[0006] The present invention will be further described below in conjunction with embodiment:

[0007] A method for producing iron oxide black from iron sludge produced by the iron powder reduction process in chemical production. The iron sludge is selected to remove impurities, passed through a 40 μm sieve in water washing, washed until the pH is 6-7, and press-filtered Then dry at 100°C ± 10°C until the water content is 0.5%-2%, and then pulverize. During the pulverization, use 1%-5% stearic acid and 1%-5% carbon black for surface treatment. A kind of iron oxide black with ferric oxide content of 70%-95% is prepared.

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

A process for preparing the iron oxide black from the Fe-mud dregs generated by iron powder reducing procedure includes such steps as removing impurities, water washing while sieving washing to pH 6-7, pressure filter, drying at 100+/-10 deg.C, and surface treating by stearic acid and carbon black. Its advantages are high content of Fe3O4 (70-95%), use of waste as raw material, and low cost.

Description

technical field [0001] The invention relates to a preparation method of a pigment. Background technique [0002] In the chemical production using the iron reduction production process, a large amount of iron sludge will be produced. At present, these iron sludge are discharged into the environment without treatment, causing serious pollution to the environment. Contents of the invention [0003] The purpose of this invention is to provide a kind of method for preparing iron oxide black pigment from iron sludge. [0004] The purpose of the present invention is achieved in the following manner: a method for producing iron oxide black from iron sludge produced by the iron powder reduction process in chemical production: the iron sludge is carefully selected to remove impurities, and passed through a 40 μm sieve in water washing , washed with water until the pH is 6-7, dried under the condition of 100°C±10°C to a moisture content of 0.5%-2% after press filtration, and pulveri...

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): B09B3/00C01G49/08
Inventor 左伏根
Owner 左伏根
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