Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing bright red iron red hybrid pigment from iron tailings

An iron tailings, red technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of complex composition of iron tailings, complicated mechanism of action, etc., to achieve rich reserves and improve chromaticity. , the effect of high thermal stability

Active Publication Date: 2020-12-29
HEBEI UNIV OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex composition of iron tailings and the complex interaction mechanism of components, there are still many technical points to be studied and overcome in its specific application.
At present, the research and utilization of iron tailings are mostly for the purpose of environmental protection, and there is no report on the construction of high value-added functional materials for the natural silicate composite mineral endowment characteristics of iron tailings

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 bright red iron red hybrid pigment from iron tailings
  • Method for preparing bright red iron red hybrid pigment from iron tailings
  • Method for preparing bright red iron red hybrid pigment from iron tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Disperse 2.0 g of ball-milled iron tailings powder in 60 mL of an aqueous solution of 0.37 mol / L ferric chloride, fully stir (2500 r / min, 2 h) and ultrasonic (30 min) and then add 1 g of sodium hydroxide , 1mL of ammonia water (ammonia water mass fraction: 28wt.%; total base molar weight: 0.0398mol), after stirring vigorously at a speed of 4800r / min for 30min, continue stirring (1500r / min) and ultrasonication for 2h each to obtain a uniform suspension, the The suspension was transferred to a hydrothermal reaction kettle, reacted at 160°C for 24 hours, cooled naturally to room temperature, centrifuged, washed, dried, ground, and sieved to obtain a bright red iron red hybrid pigment.

[0023] The main phase composition of the obtained iron red pigment is α-Fe 2 o 3 , albite, quartz (such as figure 1 shown); the shape is relatively regular, which is similar to the shape of silkworm cocoon, and the particle size is 160nm (such as figure 2 shown); the a* value...

Embodiment 2

[0024] Example 2: Disperse 4.0 g of iron tailings powder in 60 mL of an aqueous solution with a concentration of 0.18 mol / L ferric chloride and 0.21 mol / L ferric sulfate, fully stir (3000 r / min, 2 h) and ultrasonic (1.5 h) Then add 6mL of ammonia water (ammonia water mass fraction: 28wt.%; molar weight: 0.0888mol), stir vigorously at a speed of 4500r / min for 30min, then continue to stir (1500r / min) and ultrasonic for 1h each to obtain a uniform suspension. Transfer to a hydrothermal reaction kettle, react at 180°C for 12 hours, cool naturally to room temperature, centrifuge, wash, dry, grind, and sieve to obtain a bright red iron red hybrid pigment with a particle size of 210nm and a* value as high as 35.9, b* value is 22.1, and L* value is as high as 44.2, indicating that its color is bright (the chromaticity is tested by CR-400 / 410 of Beijing Kemei Runda Instrument Equipment Co., Ltd.).

Embodiment 3

[0025] Embodiment 3: the iron tailings powder of 3.0g is dispersed in the aqueous solution that 60mL concentration is 0.74mol / L ferric nitrate, fully stir (2000r / min, 1h) and ultrasonic (1.5h) add 3mL ammoniacal liquor (ammonia liquor mass fraction : 28wt.%), 3g sodium metasilicate (total alkali molar weight: 0.0602mol), after vigorously stirring at a speed of 5000r / min for 30min, continue to stir (2000r / min, 2h) and ultrasonic (30min) to obtain a homogeneous suspension, The suspension was transferred to a hydrothermal reaction kettle, reacted at 200°C for 6 hours, cooled naturally to room temperature, centrifuged, washed, dried, ground, and sieved to obtain a bright red iron red hybrid pigment with a particle size of 190nm. The a* value is as high as 33.9, the b* value is 23.2, and the L* value is as high as 42.7, indicating that its color is bright (the chromaticity is tested by CR-400 / 410 of Beijing Kemei Runda Instrument Equipment Co., Ltd.).

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing bright red iron red hybrid pigment by utilizing iron tailings. The method comprises the following steps: adding iron tailings powder into an iron salt solution, then adding alkali, intensely stirring for 20-40 min, then continuing to stir and performing ultrasonic treatment for 30 min-4 h respectively to obtain suspension liquid, transferring the suspension liquid to a hydrothermal reaction kettle, and reacting for 4-48 h under a condition of 140-200 DEG C to obtain the bright red iron red hybrid pigment. According to the invention, the iron tailings are utilized as resources, so that not only can environmental and energy problems be solved, but also a new way is provided for reducing the preparation cost of the iron red pigment; a syntheticroute is more green; the preparation cost is lower; and a new way is developed for the resource utilization and the high added value functionalized utilization of the iron tailings which are abundantin reserves and need to be used urgently in China,.

Description

technical field [0001] The invention relates to a preparation method of a bright red iron red hybrid pigment, in particular to a method for preparing a bright red iron red hybrid pigment by using iron tailings, and belongs to the technical field of deep processing of iron tailings and preparation of nanocomposite materials. Background technique [0002] Iron tailings are the main component of industrial solid waste, and are widely concerned in the world as a secondary resource because they contain rich valuable substances. At present, the comprehensive utilization rate of iron tailings in my country is only 7%, and the amount of iron tailings in stockpiles is as high as several hundred billion tons. Difficulty in the utilization of iron tailings not only leads to waste of resources, but also brings many serious environmental problems, seriously deteriorating the air environment and water environment in surrounding areas. In order to achieve the effective unification of reso...

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): C09C1/24C09C1/28C09C1/40C09C3/04C09C3/06
Inventor 田光燕巩林林梁金生王菲
Owner HEBEI UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com