Titanium dioxide(TiO2) is a white amorphous powder with high chemical stability and heat resistance.

It is insoluble in water, dilute acids, and organic solvents, but can react with bases to form soluble titanates.

In addition, it has anti ultraviolet, antibacterial, self-cleaning and anti-aging effects, and can be used in cosmetics, functional fibers, plastics, inks, coatings, paints, fine ceramics, antibacterial agents and other fields.

The use of Titanium Dioxide

1. Nano titanium dioxide has uniform particle size and good dispersibility; Strong photocatalytic effect.

♦ Agricultural antibacterial agents

♦ Sanitary ceramic ware

♦ Water treatment

♦ New antibacterial fluorescent lamps

♦ Air purification technology

2. Nano titanium dioxide is non-toxic, with strong photocatalysis, UV shielding ability, and excellent transparency.

As a new type of material, it has been widely used in cosmetics, sunscreen, and other products;

3. Nano titanium dioxide is used in plastic, rubber and functional fiber products.

It can improve the anti-aging ability, anti pulverization ability, weather resistance and product strength, while maintaining the color luster of the product and extending the service life of the product;

4. Nano titanium dioxide can be used in printing ink, coating and textile to improve its adhesion, anti-aging and scrub resistance;

5. Lipophilic nano TiO2 can be well dispersed in organic solvents and plastic resins;

√ Preparation of nanoplastics: Through SCF CO ₂ technology, metal precursors can be uniformly dispersed in a polymer matrix to form metal nanoplastics.

For example, in the preparation process of PMP/Pt nanoplastics, the high permeability and volatility of CO ₂ simplify the process and do not require the use of harmful solvents.

√ Biodegradable plastic synthesis: Nano carbon dioxide can also be used as a raw material to participate in the biosynthesis process.

For example, through electrochemical reduction reactions, acetate salts are generated, which are further used to produce biodegradable bioplastics such as polyhydroxybutyric acid (PHB)

6. Nano TiO2 is used in the paper industry to improve printability and impermeability;

√  Improve paper performance

High opacity and whiteness: Nano titanium dioxide has an extremely high refractive index, and after filling, the opacity of the paper is 10 times higher than other fillers, while significantly improving whiteness and glossiness.

Enhanced weather resistance: Its excellent UV penetration resistance makes it suitable for producing high-end paper that requires long-term preservation.

√  Functional applications

Self cleaning and antibacterial: It can decompose oil and dust under light conditions and inhibit bacterial growth, suitable for special functional paper (such as food packaging paper).

Environmental substitution: By surface modification (such as silicate coating) to reduce agglomeration, partially replacing traditional titanium dioxide, and reducing costs.

√  Technical challenges

Dispersion issue: Nanoparticles are prone to aggregation and need to be improved in dispersion through organic modification (such as coupling agent treatment) or inorganic coating (such as SiO ₂).

Cost control: Despite superior performance, the price is relatively high and is mostly used for high value-added paper types

7. It can also be applied to the metallurgical and aerospace industries.

√ High temperature protective materials;

√ Lightweight and structural strengthening;

√ Functional coating and self-cleaning technology;

√ Improvement of environmental adaptability

Production process of TiO2

There are two methods for manufacturing TiO2:
1) The sulfate process
2) The chloride process

Industry development summary

In the short term, the titanium dioxide industry is in the adjustment stage of “destocking and stabilizing costs”.

The pace of demand recovery and the overseas trade environment are key influencing factors.

In the long term, technological breakthroughs in domestic chlorination methods, environmental protection policies promote industrial upgrading, and demand in the new energy field expands.

The industry will gradually shift from “price competition” to “technology competition + industrial chain competition.”

 

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