Lithium bromide is an inorganic salt that is highly soluble in water, has strong water absorption, has a high boiling point in aqueous solutions, and poses no risk of explosive combustion. Its core applications are concentrated in the refrigeration industry, as well as supporting fields such as chemical engineering, drying, and batteries.
1、 Air conditioning/industrial refrigeration: lithium bromide absorption chiller unit
1. Core principles
Water is used as a refrigerant, and lithium bromide aqueous solution is used as an absorbent.
Low temperature and low pressure water evaporation absorbs heat to achieve refrigeration; Lithium bromide concentrated solution has extremely strong water absorption capacity, quickly absorbs water vapor, and maintains a low-pressure environment for the unit; Then, the dilute solution is heated by steam/hot water waste heat to separate the water vapor and complete the regeneration cycle.
2. Function
Strong absorption of refrigerant water vapor, creating a continuous vacuum cooling environment;
Circulating concentration and dilution to achieve waste heat recovery and refrigeration;
3. Advantages
No need for Freon, it can utilize factory waste heat, natural gas, and hot water, suitable for centralized cooling in large factories, hospitals, shopping malls, and data centers.
2、 Desiccant, dehumidification medium (strong water absorption)
Liquid lithium bromide solution is used for industrial gas drying and deep dehumidification in enclosed spaces;
Dry air, nitrogen, and process protection gas have a much higher ability to adsorb water vapor than calcium chloride;
Core raw materials for liquid dehumidification systems in constant temperature and humidity workshops, lithium battery production, and precision instrument warehouses.
3、 Chemical industry
1. Organic synthesis catalyst
Used for etherification and halogenation reactions, as a mild bromine source and catalytic aid;
2. Corrosion inhibitors for water treatment
Low concentration addition to inhibit corrosion of carbon steel and copper pipes, used in conjunction with circulating water for refrigeration units;
Preparation of other bromide raw materials: sodium bromide, potassium bromide, etc.
4、 Battery and energy storage field
Electrolyte components of liquid flow energy storage batteries (lithium bromide system);
Lithium battery electrolyte additives regulate ion conduction and enhance low-temperature discharge performance.

Relevant articles