Cradle to Gate
Identity ID
93a90824-4cfd-47db-95c8-307760cf4e08
Materials
Associated ID
38923aed-8fed-4ccf-b788-20c13e2e9149
Included activities starts
Included activities ends
Description
This dataset represents a product that is magnesium chloride from titanium sponge production, mainly characterized by being generated in the chlorination–reduction process through the participation of a magnesium source (usually magnesium metal or a magnesium-containing compound) in the reaction and obtained in the form of condensation recovery. Its purity and water-of-crystallization content depend on the process cooling method and the level of subsequent treatment; its physical form can be crystalline particles or powder, and its chemical properties are strongly hygroscopic, readily soluble in water to form a weakly alkaline solution, and capable of forming double salts with various anions. In the industrial chain, this product is located at the by-product end of titanium sponge production; the key upstream raw materials are titanium feedstock, the magnesium source and chlorine gas, and the downstream can be used for diversified applications such as magnesium electrolysis raw material, building and chemical raw materials, and snow-melting agent. The dataset includes the main raw and auxiliary materials, energy and wastes in the production process; infrastructure such as the manufacture of production equipment and plant construction is not included within the boundary of the dataset; the data inventory is formed by merging data from multiple sources.
Activity Description
This data set covers the entire process of producing magnesium chloride products from by-product magnesium-containing materials in the production process of titanium sponge as raw materials, through separation, purification, concentration, crystallization or drying. The main input is the magnesium-containing waste liquid generated during the production of titanium sponge or the magnesium-containing intermediate generated by the hydrolysis of crude titanium tetrachloride, as well as necessary process water, acid-base regulators, energy and other auxiliary materials; the main output is magnesium chloride products of different specifications (anhydrous magnesium chloride or magnesium chloride hexahydrate), as well as a small amount of by-products or wastewater such as filter residues and evaporation condensate. The main process units include in sequence the collection and pretreatment of magnesium-containing materials, chemical conversion or solid-liquid separation to extract magnesium ions, solution purification and impurity removal, concentration and evaporation to saturation, crystallization or drying to obtain finished products, and finished product packaging and storage.
Process Description
Magnesium chloride is a by-product formed during the production of titanium sponge. Its main component is magnesium chloride hexahydrate (MgCl₂·6H₂O). It can also be made into anhydrous magnesium chloride during subsequent processing. The magnesium content corresponds to the purity of magnesium chloride, which is usually above 90%. Key performance parameters The data include magnesium chloride purity, crystal water content, particle size distribution, solubility, and impurity ion types and contents. The common form is colorless or white crystals or particles, which mainly come from the condensation recovery stage when ilmenite or high-titanium slag is used as raw material and the chlorination-reduction process is used to produce sponge titanium. Magnesium chloride is mainly collected, purified or sold as an industrial by-product in this system. It can be used as magnesium electrolysis raw material in the metallurgical industry, magnesite products in the building materials industry, road snow melting agent, magnesium compound synthesis in the chemical industry, etc. It can also be returned to the chlor-alkali or magnesium smelting cycle system after dehydration treatment. The standard chemical formula is MgCl₂ (anhydrous) or MgCl₂·6H₂O (hexahydrate).
Time period
2024
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Frontier technology