Lithium carbonate as an important chemical raw material and battery material, lithium carbonate packaging methods are varied, the choice of the appropriate packaging form and material is very important to the quality and reliability of the product, the following are several common packaging methods for lithium carbonate:
Common packaging forms
1. Plastic bag packaging
Lined plastic bags: usually use polyethylene (PE) film as a liner to prevent lithium carbonate from contact with the outside air, to reduce moisture absorption and pollution.
Outer layer packaging: the outer layer can be woven bags or paper-plastic composite bags, woven bags have good air permeability and tensile strength, while paper-plastic composite bags have better moisture resistance.
Sealing method: the inner bag is usually sealed by tying or heat sealing, while the outer bag is sewn or glued to ensure the firmness of the package.
2. Cardboard drum packaging
Specification and capacity: common cardboard drum packaging capacity of 25 kg, 50 kg, etc., suitable for small quantities of transportation and storage.
Moisture-proof treatment: The interior of cardboard drums is usually treated with moisture-proof treatment, such as coating with moisture-proof paint or using moisture-proof lining, to ensure that lithium carbonate is not exposed to moisture during storage and transportation.
3. Plastic drum packaging
Material: Plastic drums are usually made of high density polyethylene (HDPE) or polypropylene (PP), with good chemical resistance and sealing properties.
Scenario: It is suitable for lithium carbonate products that need to be stored for a long time or transported over a long distance, and the sealing performance of plastic drums can well prevent lithium carbonate from moisture and pollution.
4. Ton bag packaging
Characteristics: Ton bag packaging is a large-capacity packaging method, suitable for the transportation and storage of large quantities of lithium carbonate. The tonnage bag is usually made of high-strength woven fabric, with good tensile strength and abrasion resistance.
Technical difficulties: In the process of tonnage bag packaging, attention needs to be paid to dust control, electrostatic treatment and packaging density control to ensure the reliability of the packaging process and product quality.
Selection of packaging materials
Moisture resistance: lithium carbonate to moisture, easy to absorb moisture caking, so the packaging materials need to have good moisture resistance, such as the use of moisture-resistant cardboard, plastic film.
Anti-static properties: lithium carbonate powder is easily charged, packaging materials should have anti-static function to prevent the impact of static electricity on the packaging process.
Chemical resistance: packaging materials need to be able to resist the corrosion of acids, alkalis and other chemicals to ensure the reliability of lithium carbonate in the storage and transportation process.
Precautions in the packaging process
Dust control: In the lithium carbonate packaging process, a large amount of dust will be generated, need to take good dust control measures, such as the use of dust removal equipment, closed packaging system, in order to prevent dust explosion and other accidents.
Sealing check: After the packaging is completed, the sealing of the bag or container needs to be checked to ensure that there is no air leakage, powder leakage and other issues.
Labeling and marking: The package should be clearly marked with product name, specification, production date, shelf life and other information to facilitate management and use.
Packaging standards and specifications
National standards: According to GB/T 11075-2013 and other national standards, the packaging of lithium carbonate should meet the relevant requirements.