Cradle to Consumer
Identity ID
6ffcbc86-d511-4116-b013-1bcebd0e6c0c
Materials
Associated ID
c98e7de9-97f5-418b-9861-999e0bc605be
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Barium chloride is mainly used in metal heat treatment, barium salt manufacture and electronic instruments, and is also used as a heat treatment agent in machining, for the determination of sulfates and selenates, chromatographic analysis, spot analysis for the determination of platinum, and as a water softener; the dataset contains the main raw and auxiliary materials, energy, atmospheric emissions, wastewater and solid waste of the production process, in which the preliminary treatment of wastewater in the auxiliary units and the waste gas treatment process are included within the dataset boundary, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include slurrying, acidification, evaporation and concentration, filtration, crystallisation, heating and dissolution, filtration, crystallisation, dehydration, and filter-press impurity removal.
Activity Description
The production activities of this product include pulping, acidification, evaporation and concentration, filtration, crystallization, heating and dissolving, filtration, crystallization, dehydration, filter press and impurity removal, etc.
Process Description
Barium chloride dihydrate has the chemical formula BaCl2·2H2O and CAS number 10326-27-9. It is a white crystalline powder with a density of 3.856 g/cm3. Upon heating, it loses its water of crystallization; its apparent melting point is approximately 113°C, and it decomposes upon further heating. It is soluble in water, insoluble in acetone and ethanol, and slightly soluble in acetic acid and sulfuric acid. It is mainly used in metal heat treatment, barium salt manufacturing, and electronic instruments. It is also used as a heat-treatment agent in mechanical processing, for determining sulfates and selenates, in chromatographic and spot-test analyses for platinum, and for water softening.
Time period
2019
2026
Geography
China,Henan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Barium carbonate is pulped and then acidified with hydrochloric acid to generate barium chloride. The aqueous solution containing acid-insoluble matter is filtered using a plate and frame filter press. The filtrate is concentrated and filtered again for crystallization. The mother liquor is circulated. After crystallization and drying, primary barium chloride is obtained. Condensed water and refined mother liquor are added to dissolve the primary barium chloride. The solution is then filtered for crystallization and centrifugally dehydrated to obtain barium chloride dihydrate. The core reaction chemical equation of the acid hydrolysis method is: BaCO3+2HCl+H2O=BaCl2·2H2O+CO2↑.