Material characteristics:

Lithium chloride is a white crystal with deliquescence. Salty, soluble in water, ethanol, acetone, pyridine and other organic solvents. Low toxicity, but on the eyes and mucous membranes have a strong irritating and corrosive effect. Anhydrous lithium chloride is mainly used for electrolytic preparation of metal lithium, aluminum flux and flux and non-freezing type air conditioning machine moisture absorption (dewetting) agent.
Industrial mainly by lithium mica, spodumene and extraction of sodium chloride, potassium chloride after the brine water extraction. Evaporation of lithium chloride aqueous solution can be obtained by lithium chloride monohydrate crystal, higher than 98 DEG C can be anhydrous salt.
 

Solubility of lithium chloride in water

Introduction to the process of evaporation of sodium (potassium) from lithium chloride solution and evaporation crystallization system of lithium chloride:

When lithium chloride is produced by using spodumene, the lithium chloride solution containing a very small amount of sodium chloride can be prepared through the reaction, precipitation, pressure filtration, acidification and other processes of the previous process. Salt lake brine also contains certain impurities such as sodium chloride and potassium chloride when making lithium salt products. The process of evaporating and concentrating sodium and potassium needs to reduce sodium and potassium as much as possible, and the entrained lithium is as little as possible when separating sodium and potassium. When evaporating and crystallizing lithium chloride, the pipeline is easy to be blocked, and the evaporating and crystallizing is easy to produce a large amount of foam entrained lithium, resulting in lithium loss. Hebei Yanming Chemical Equipment Co., Ltd. has carried out special design and transformation of key equipment in the process of preparing lithium chloride solid products from lithium chloride rich lithium solution through the analysis of materials and the application effect in practical engineering, and has achieved good application effect. The boiling point of the lithium chloride solution increases, the evaporation system adopts a three-effect evaporator for evaporation and concentration, and the concentrated lithium chloride solution precipitates sodium chloride crystals under the effect of the same ion, and then filters to obtain the lithium chloride concentrate. The obtained concentrated solution of lithium chloride was crystallized by forced circulation evaporation to obtain anhydrous lithium chloride product.

Our company can provide customers with lithium chloride evaporation sodium and lithium chloride evaporation crystallization system in spodumene production lithium chloride system, lithium chloride evaporation sodium and potassium in brine extraction, lithium chloride evaporation sodium and potassium in lepidolite extraction, lithium chloride recovery in polyphenylene sulfide production, and lithium chloride recovery system in other industries.

Process characteristics:

The sodium (potassium) precipitation rate is high in the process of evaporating sodium (potassium), and the loss of lithium with sodium and potassium is less;

The system adopts a unique design to avoid blocking the pipeline during the evaporation and crystallization of lithium chloride and affecting normal production;

The concentration system adopts different forms of evaporator combination design, to meet the normal production at the same time, reduce the system operating costs and system one-time investment;

The lithium chloride crystallizer is designed reasonably to avoid the loss of lithium caused by mist entrainment in the process of evaporation and crystallization, and to meet the needs of crystal growth;

⑤ The system adopts reasonable automation design to avoid pipeline blockage caused by human operation errors;

The system covers an area of small, simple and convenient operation.

Process flow diagram of lithium chloride evaporation sodium precipitation system and lithium chloride evaporation crystallization system: