Cradle to Consumer
Identity ID
5c855470-bdbd-477d-9604-e7e4de26df0a
Materials
Associated ID
04e10888-1315-4a3f-a6e8-4fb9ee0ff083
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 consumption end, and the transport service is calculated based on the transport situation of the product in the region. Boric acid is widely used in glass, enamel, pharmaceuticals, chemical industry, metallurgy, building materials, nuclear industry and other fields; boric acid is modeled as a pure substance, and when modeling this substance the user needs to add a solvent of their choice in the model; this dataset includes the main raw and auxiliary materials, energy, waste and air emissions of the production process, while infrastructure such as production equipment manufacturing and plant construction is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activity of this product includes boron ore grinding, acid decomposition, pressure filtration, crystallization, flotation, centrifugal drying and other process steps. Dihydrate gypsum is a by-product of this production process.
Activity Description
The production activities of this product include boron ore grinding, acid hydrolysis, filter press, crystallization, flotation, centrifugal drying and other processes.
Process Description
The chemical formula of boric acid is H3BO3, CAS number is 10043-35-3. It is a white crystalline powder with a smooth feel and no smell. Boric acid is a very weak monovalent acid. Adding glycerin to it will increase its acidity. Soluble in water, alcohol, glycerin, ethers and essential oils, the aqueous solution is weakly acidic, and its solubility in water increases with temperature. Boric acid is widely used in glass, enamel, medicine, chemical industry, metallurgy, building materials, nuclear industry and other fields.
Time period
2023
2026
Geography
China,Gansu
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The sulfuric acid method is the traditional mainstream technology for the preparation of industrial boric acid. It is produced through the acidolysis reaction of boron ore and sulfuric acid. The process is simple and easy to industrialize. It accounts for more than 70% of the domestic powder boric acid market and is the core path for large-scale production of boric acid. This dataset represents this mainstream technology: the boron ore is crushed and ground and then dissolved in an acidolysis tank. The slurry after acidolysis is filtered by a filter press. The filtrate is sent to a crystallization tank to precipitate crude boric acid. It is collected by flotation and then washed, centrifuged, and dried to obtain the finished product of boric acid. The chemical reaction equation involved is mainly: 2MgO·B2O3 + 2H2SO4 + H2O = 2H3BO3 + 2MgSO4.