What are the differences in the difficulty and procedures for preparing battery-grade lithium carbonate and industrial-grade lithium carbonate?

There are certain differences in the difficulty and procedures of preparing battery-grade lithium carbonate and industrial-grade lithium carbonate. In general, the preparation of battery-grade lithium carbonate has higher requirements and needs to ensure the purity and quality of the product, so its preparation process is relatively more complicated.

1. In terms of raw material selection, the requirements of battery-grade lithium carbonate and industrial-grade lithium carbonate are different. Battery-grade lithium carbonate requires the use of high-purity lithium sources, such as spodumene, lithium mica, etc. These raw materials have low impurity content, which is conducive to the preparation of high-purity lithium carbonate. Industrial-grade lithium carbonate can use some low-purity lithium sources, such as salt lake brine, ore, etc.

2. During the preparation process, the operating conditions and process parameters of battery-grade lithium carbonate and industrial-grade lithium carbonate are also different. The preparation of battery-grade lithium carbonate requires more stringent control of reaction conditions, such as temperature, pressure, time, etc., to ensure the purity and quality of the product. At the same time, key steps such as crystallization and drying of battery-grade lithium carbonate also require more delicate operations to avoid impurities and product loss. The preparation of industrial-grade lithium carbonate is relatively simple, focusing mainly on yield and cost.

3. There are also differences in product testing and quality control between battery-grade lithium carbonate and industrial-grade lithium carbonate. Battery-grade lithium carbonate requires a more stringent quality control system to ensure product stability and consistency. At the same time, product testing of battery-grade lithium carbonate also requires more sophisticated testing methods and instruments to detect key indicators such as trace impurities and crystal structure in the product.

4. In terms of environmental protection, there are also certain differences between battery-grade lithium carbonate and industrial-grade lithium carbonate. Although both need to comply with environmental protection laws and standards, the preparation process of battery-grade lithium carbonate produces less waste gas, waste residue and other wastes, and has less impact on the environment.

In summary, there are certain differences in the difficulty and procedures of preparing battery-grade lithium carbonate and industrial-grade lithium carbonate. Battery-grade lithium carbonate requires higher product quality and purity requirements, so its preparation process is relatively more complicated. At the same time, battery-grade lithium carbonate also requires a more stringent quality control system and environmental protection measures. Therefore, when choosing to use battery-grade lithium carbonate or industrial-grade lithium carbonate, it is necessary to choose according to actual needs and product requirements.