Phosphorus trichloride reaction heat comprehensive utilization device and method
In the synthesis of phosphorus trichloride process, the reaction heat of phosphorus trichloride is used as a medium for liquid chlorine gasification, the problems of waste of heat value and high operating costs in the existing process are solved, and efficient utilization of heat value and cost reduction are achieved.
CN119687710APending Publication Date: 2025-03-25ZHEJIANG XINAN CHEM IND GRP CO LTD
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Patent Information
- Application Number
- CN202411907830.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
The existing synthetic phosphorus trichloride process consumes a lot, has waste of calorific value, and has high overall operating costs.
Method used
The reaction heat of phosphorus trichloride is used to gasify liquid chlorine, and phosphorus trichloride is condensed at the condensation of phosphorus trichloride to achieve comprehensive utilization of heat value.
Benefits of technology
It reduces the operating cost of the process, saves the consumption of steam and circulating water, and achieves efficient utilization of heat value.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a comprehensive utilization device and method for phosphorus trichloride synthesis reaction heat. The comprehensive utilization device comprises a warm water tank, a circulating water pump, a plurality of sets of liquid chlorine preheaters, a plate-and-frame heat exchanger and a phosphorus trichloride precooler. The warm water tank is connected with the circulating water pump, the circulating water pump is connected with the liquid chlorine preheater, the liquid chlorine preheater is connected with the plate-and-frame heat exchanger, the plate-and-frame heat exchanger is connected with the phosphorus trichloride precooler, and the phosphorus trichloride precooler is connected with the warm water tank. According to the method provided by the invention, the operation cost of the process can be reduced, and 0.64 t of steam can be saved for each ton of phosphorus trichloride after normal production.
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