Cradle to Gate
Identity ID
ea2a8ceb-46df-452d-9f00-58976c603607
Materials
Associated ID
409906e0-07ec-44a7-b957-2d5f8086810e
Included activities starts
Included activities ends
Description
Phosphorus pentoxide is often used as a desiccant and dehydrating agent, and is also a main material for manufacturing phosphoric acid, pesticides and phosphates; The dataset includes the main raw and auxiliary materials, energy and atmospheric emissions of the production process, in which the waste-gas treatment process is included within the dataset boundary, while infrastructure such as the manufacture of production equipment and plant construction 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 raw material input, oxidation reaction, cooling and condensation, product collection, tail-gas treatment (water absorption) and other processes.
Activity Description
The production activities of this product include raw material input, oxidation reaction, cooling and condensation, product collection, exhaust gas treatment and other processes.
Process Description
Phosphorus pentoxide, chemical formula: P2O5, CAS number: 1314-56-3, is a pure white powdery solid. When the purity is insufficient, it becomes a yellow powder with a special pungent odor. Phosphorus pentoxide is hygroscopic and will quickly absorb moisture in the air and deliquesce when exposed to the air. Phosphorus pentoxide is often used as a desiccant and dehydrating agent, and is also the main material in the manufacture of phosphoric acid, pesticides, and phosphates.
Time period
2021
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
In the phosphorus pentoxide generator, phosphorus reacts with oxygen to produce gaseous phosphorus pentoxide. Excess dry cold air is introduced into the generator to quickly cool the gaseous phosphorus pentoxide, causing it to condense into a solid and settle into the screw conveyor at the bottom of the generator, thereby collecting the product. For tail gas generated when collection is incomplete, the phosphorus pentoxide reacts with water for tail gas absorption. The main chemical reaction equation is: P4+5O2=2P2O5.