Cradle to Consumer
Identity ID
cf2eee1d-35aa-4ff9-8978-9e60af7c2eef
Materials
Associated ID
8fb7fea2-57e7-4242-9331-79f707d502ae
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. Phosphorus trichloride is mainly used in fields such as organic synthesis, pharmaceutical intermediate production, metal surface treatment and semiconductor material processing; Phosphorus trichloride is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, 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 liquid chlorine vaporisation, phosphorus melting, chlorination, rectification and tail gas treatment.
Activity Description
The production activities of this product include vaporization of liquid chlorine, phosphorus melting, chlorination, distillation, and tail gas treatment.
Process Description
The chemical formula of phosphorus trichloride is PCl3, CAS No. 7719-12-2. It is a colorless and transparent liquid at room temperature. It has a pungent odor and is easily volatile. Soluble in organic solvents such as ether and carbon tetrachloride, it will react violently with water to generate phosphorous acid and hydrogen chloride gas, releasing a large amount of heat and even causing local boiling. It is highly corrosive, can burn skin and mucous membranes, and is toxic. Inhaling its vapor will damage the respiratory tract. Storage should be in sealed and dry glass or plastic containers, away from water sources, oxidants and high temperature environments. Industrially, it is mainly used in organic synthesis (preparation of phosphate pesticides and flame retardants) and pharmaceutical intermediate production (synthesis of antibiotics and other drugs). It can also be used as a chlorinating agent for metal surface treatment and semiconductor material processing.
Time period
2020
2026
Geography
China,Hunan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The yellow phosphorus chlorination method is the only mainstream industrial technology for the production of phosphorus trichloride. It is produced through the direct chlorination of yellow phosphorus and chlorine, with high technical barriers. This process accounts for about 92% of the domestic industrial production capacity of phosphorus trichloride. This dataset represents this mainstream technology: chlorine gas is gasified and sent to the phosphorus trichloride workshop, while the temperature is controlled to melt yellow phosphorus into a liquid state. The two react rapidly in the chlorination kettle to generate crude phosphorus trichloride. The unreacted yellow phosphorus follows the phosphorus trichloride gas into the phosphorus washing tower to remove free phosphorus and is then discharged into the condensation tower for distillation to obtain the finished product. The collected waste gas is absorbed by water in the treatment system, yielding by-product hydrochloric acid and phosphoric acid. The residual tail gas is absorbed by alkali liquid and then discharged to the sewage treatment plant for further treatment. The main chemical reaction equation is: P4 + 6Cl2 → 4PCl3.