Lithium carbonate use

What is lithium carbonate?

Lithium carbonate, an inorganic compound with the formula Li2CO3, is a colorless monoclinic crystal or white powder. Density 2.11g/cm3. Melting point 618℃

(1.013*10^5Pa). Soluble in dilute acid. Slightly soluble in water, the solubility in cold water is larger than that in hot water. Insoluble in alcohol and acetone. Can

be used to make ceramics, drugs, catalysts and so on. Lithium salt early strength agent can promote coagulation and early strength of cement mortar. Research

shows that lithium salt early strength agent can improve the low temperature hydration ability of cement mortar, significantly shorten the low temperature

thickening time, and improve the low temperature compressive strength of cement mortar by speeding up the hydration protective film rupture and shortening the

hydration induction period.

Applications.01 Building mortar field

Lithium salt early strength agent can promote coagulation and early strength of cement mortar. Research shows that lithium salt early strength agent can improve

the low temperature hydration ability of cement mortar, significantly shorten the low temperature thickening time, and improve the low temperature compressive

strength of cement mortar by speeding up the hydration protective film rupture and shortening the hydration induction period.

Because Portland cement is often used in mortar, it is characterized by low strength in the early stage and high strength in the later stage. In order to improve its

early strength, lithium carbonate is mainly used in grout, cement-based plastering mortar, repair mortar, base slurry and other products. Adding an appropriate

amount of lithium carbonate to the product is very beneficial for improving the early strength. In order to improve the early strength, high-aluminum cement is

usually added to the mortar as a coagulant, and antifreeze is also added in low temperature environments for antifreezing.

Lithium carbonate has a dual role, which can speed up the hardening speed of cement, improve the early strength, and avoid the problem that the setting speed is

too slow in winter construction or low temperature and wet environment, so that cement products can be put into use as soon as possible to improve the strength,

lithium carbonate especially contributes more to the early strength. In summer, the amount of lithium carbonate is usually 0.01% to 0.03% of the cement mass,

and in winter, the amount of lithium carbonate should be increased with the decrease in temperature, and the amount is about 0.02% to 0.05%. The amount of

lithium carbonate should not be too high, otherwise it will lead to cracking.

Applications.02

Nuclear power generation field

Lithium can be used as an ideal coolant and heat carrier in nuclear fusion and fission. A controlled fusion reactor uses only about 700 tons of lithium metal as a

heat carrier.

Application.03

Lithium field

In the higher energy lithium battery production range. The specific energy is 3 times that of nickel-metal hydride batteries, nickel-cadmium batteries, and 2 times

that of lead-acid batteries.

Compared with traditional batteries, lithium-ion batteries have a larger capacity under the same volume, and have the characteristics of green production,

application and recycling process, so it has been widely used in the range of consumer electronics and energy storage products in recent years, affected by the

policy of favorable new energy car market, power lithium batteries have a strong momentum of development.

Applications.04

Alloy field
Magnesium-lithium aluminum alloy is a lighter metal structural material among the magnesium alloys studied so far, and it will have a wider application prospect in

the fields of aerospace and communication.

Applications.05

Lubricating oil field

Lithium grease has good water resistance and high and low temperature lubrication performance.

Applications.06

Ceramic field

In the glass industry, it is used as a special glass with high toughness, suitable for ductile ceramics, metal protection ceramic coatings and heat resistant ceramic

coatings as a flux.

Applications.07

Metallurgical field

Lithium is a light metal, strong combination with oxygen atoms, as a deoxidizer in the process of industrial copper and nickel smelting; Lithium can be used as a

cleaner of sulfur; Lithium can be alloyed with various metals.

Sum up

The application of lithium carbonate in the market is mainly industrial grade lithium carbonate and battery grade lithium carbonate.

Industrial grade lithium carbonate application:

1, as a raw material reagent for the synthesis of other lithium compounds;

2, used in the production of ceramics and electrical insulation porcelain;

3. Manufacture heat-resistant ceramic coatings for combustion chambers and nozzles of jet engines;

4, as glaze, enamel, aluminum, cast iron and steel acid-resistant coating;

5, as a glass additive. The glass mixed with lithium carbonate has high strength, high gas resistance and high quality.

6, as a flux for aluminum manufacturing (used to improve the productivity of the electrolytic cell);

7. Used as a flux for welding aluminum and magnesium;

8, as part of the fireworks mixture;

9. Fuel cell;

10, as an additive in the cement industry, improve the acceleration and rapid curing process;

11, as a mood stabilizer in psychiatry, mainly used to treat depression and depression; Materials such as lithium carbonate and silicon dioxide form low-melting

fluxes.

The chemical composition of battery grade lithium carbonate is higher in purity and contains fewer impurities, which can effectively ensure the performance of the

battery. Battery grade lithium carbonate is mainly used to prepare lithium cobaltate, lithium manganate, ternary materials and lithium iron phosphate and other

lithium ion battery cathode materials. With the continuous development of The Times, and the increasing tension of the energy situation, the use of batteries is

increasing, and the market demand for lithium carbonate, the main raw material in the battery industry, is also increasing.