Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method and application of TiO2/bauxite ore slag composite material adsorbent

A technology of composite materials and bauxite, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, to achieve the effects of low cost, simple synthesis method, and reduced treatment cost

Inactive Publication Date: 2018-11-23
HEFEI YOUYI MEDIA TECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It was found that TiO 2 Particles can be well dispersed on the mineral surface without affecting the TiO 2 The character of particle, the present invention takes bauxite slag as carrier, TiO 2 The particles are fixed on the surface and prepared as TiO 2 / Bauxite slag composite adsorbent is used to separate and enrich trace titanium from the leaching solution of high-sulfur bauxite roasting clinker. At present, this method has not been reported for the recovery of titanium

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
  • Preparation method and application of TiO2/bauxite ore slag composite material adsorbent
  • Preparation method and application of TiO2/bauxite ore slag composite material adsorbent
  • Preparation method and application of TiO2/bauxite ore slag composite material adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 A kind of TiO 2 / Bauxite slag composite adsorbent

[0024] (1) The preparation method is as follows:

[0025] 1. Take about 5-6g of bauxite slag, add 100-120mL of 1mol / L hydrochloric acid solution, stir for 30-40 min, filter and rinse to obtain acidified bauxite slag.

[0026] 2. Take 3-8mL TiCl 4 and 50-70mL of 1mol / L HCl solution in a beaker, stirring constantly under an ice-water bath, to obtain TiCl 4 solution.

[0027] 3. Take 2-5g of pretreated slag, add it to 50-60mL 0.1mol / L HCl, react in an ice-water bath, and then add 20mL of TiCl prepared above 4 solution, after reacting for 10-12min, add (NH 4 ) 2 SO 4 solution, after 15 minutes, the water temperature was raised to 303K, and the reaction was carried out for 1 hour. Afterwards, the pH value of the solution was adjusted to between 4-5 with ammonia water, and the reaction was continued for 1 h. Filter, rinse with distilled water, put into a drying oven, and dry at 378K for 8h. Then, it was ...

Embodiment 2

[0033] Example 2 The adsorption effect of TiO2 / bauxite slag composite adsorbent on titanium in feed liquid under different acidity

[0034] Get 10mg TiO2 / bauxite slag composite adsorbent and add different pH (pH=0.25, 0.5, 0.75, 1, 1.25) and [H] + is 1M, 2M, 3M 5mL, 20ppm Ti (IV) solution, Shake it at 180r / min in a shaking box at 30°C for 24h. The result is as Figure 5 shown.

[0035] Depend on Figure 5 It can be seen that the TiO2 / bauxite slag composite adsorbent has the maximum adsorption rate for Ti(IV) at pH=1, which is 95%, which can realize the adsorption of Ti(IV) in the actual feed liquid.

Embodiment 3

[0036] Example 3 The separation effect of TiO2 / bauxite slag composite adsorbent on titanium in the actual feed liquid of TiAlFe

[0037] Using a solid-liquid ratio of 18:1 for three adsorption-elution cycle experiments on the actual feed liquid, the eluent still uses 1molL-1H2SO4, and the experimental results are shown in Table 4-8. It is found that the adsorption capacity of Ti(IV) and The recoveries remained stable, while the adsorption capacity of Al(III) and Fe(III) was extremely low, indicating that the adsorbent could selectively recover Ti(IV) from the leach solution of high-sulfur bauxite. Therefore, the adsorbent of the present invention can selectively adsorb Ti(IV) from the actual feed solution containing Al(III) and Fe(III) with high concentration.

[0038]

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 relates to a preparation method and application of a TiO2 / bauxite ore slag composite material adsorbent prepared by using high-sulfur bauxite ore slag as a raw material, belonging to thetechnical field of preparation of green environmental protection materials. The preparation method is characterized by comprising the steps of taking high-sulfur bauxite powder, acidifying with hydrochloric acid, then filtering under the condition of 323K and drying; dissolving TiCl4 solutions with different volumes in 40-50mL of 1 mol / L HCl solution in an ice water bath as a titanium source; enabling the dried ore slag to react with a TiCl4 solution for 10-12min under the acidic condition, then adding a (NH4)2SO4 solution, carrying out a reaction for 15-20min, enabling the water temperatureto be raised to 303 K, and carrying out the reaction for 1h; adjusting the pH value to 4-5 and continuously reacting for 1 h, filtering at 378 K, and drying for 8 h; after that, placing into a mufflefurnace and calcining for 3h at 600 DEG C (at a heating rate of 2.5DEG C / min) so as to obtain the TiO2 / bauxite ore slag composite adsorbent. The adsorbent prepared by the method can be used for absorbing titanium in a titanium-containing solution, and has the advantages of being wide in raw material source, low in cost, energy-saving, environmentally-friendly, high in titanium absorbing capacity,and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of green adsorbents and extraction of rare metals, and in particular relates to a TiO 2 / Preparation method of bauxite slag composite adsorbent and its use for separation and enrichment of titanium. Background technique [0002] Titanium and its alloys have high specific strength, specific modulus, and excellent corrosion resistance. They are called space metals in the 21st century and are also used in many high-tech fields. At present, titanium metal has been widely used in catalysis, paint dyes, rubber, textiles and plastics. In the high-tech sector, titanium is used in solar cells, tube material for heat exchangers or coolers for nuclear power plants due to its good corrosion resistance. In the field of aviation, it is mainly used in the manufacture of missiles, space shuttles and rockets. In addition, TiO 2 Nanoparticles can be used as disinfectants and tumor cell killers in medicine....

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): B01J20/08C02F1/28B01J20/30
CPCB01J20/08B01J20/06C02F1/281
Inventor 黄惠琴
Owner HEFEI YOUYI MEDIA TECH CO LTD
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