一种制备精品五硫化二磷的环保加工系统
By introducing an environmentally friendly processing system into the production of phosphorus pentasulfide, and using a primary condenser and a secondary condenser to separate low-sulfur compounds and organic impurities, the problem of insufficient product purity in existing technologies has been solved. This has enabled the production of high-purity phosphorus pentasulfide and the effective recovery of waste gas, thereby reducing production costs and safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 赵乾康
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-17
AI Technical Summary
The high-quality phosphorus pentasulfide produced by existing technology still contains a certain amount of low-sulfur compounds and organic impurities, which cannot fully meet the needs of the high-end market. In addition, the gas-phase production process has problems of high safety risks and large investment.
An environmentally friendly processing system is adopted, including a reaction vessel, an evaporator, a primary condenser, and a secondary condenser recovery unit. The evaporator is used for atmospheric or slightly positive pressure distillation purification. The primary condenser and secondary condenser recovery unit are used to separate low-boiling-point low-sulfur compounds and organic impurities, which are then recovered and reused in the reaction, thereby reducing the impurity content in the product.
The high-quality phosphorus pentasulfide produced has high purity, low sulfur content, and low organic impurity content, meeting the needs of the high-end market. At the same time, it achieves almost complete recovery of waste gas, reducing production costs and safety risks.
Smart Images
Figure CN224507073U_ABST
Abstract
Claims
1. An environmentally friendly processing system for the production of specialty phosphorus pentasulfide, characterized by: The reactor includes a reaction vessel (3), on which a phosphorus meter (1) and a sulfur meter (2) are installed. An evaporator (4) is connected to the outlet of the reaction vessel (3). The evaporator (4) is connected to a primary condenser (5). A secondary condenser recovery unit (6) is connected to the primary condenser (5). The secondary condenser recovery unit (6) is connected to the reaction vessel (3).
2. An environmentally friendly processing system for the production of specialty phosphorus pentasulfide according to claim 1, characterized in that: The evaporator (4) is set inside the insulation layer, which consists of a refractory brick layer (7), an insulation filler layer (8), and a red brick layer (9) from the inside out. An aluminum silicate insulation board (10) is set at the bottom of the insulation layer.
3. The environmentally friendly processing system for preparing fine-grade phosphorus pentasulfide according to claim 2, characterized in that: The top feed pipe of the evaporator (4) extends sequentially from the top of the refractory brick layer (7) and the insulation filler layer (8).
4. The environmentally friendly processing system for preparing fine-grade phosphorus pentasulfide according to claim 2 or 3, characterized in that: The bottom of the evaporator (4) is provided with a support (11), which is set on the aluminum silicate insulation board (10).
5. The environmentally friendly processing system for preparing high-quality phosphorus pentasulfide according to claim 4, characterized in that: The evaporator (4) is provided with multiple sets of heating tubes (12), which are arranged horizontally inside the evaporator (4). The evaporator (4) is provided with a slag discharge pipe (13) on its side wall near the bottom.
6. An environmentally friendly processing system for the production of specialty phosphorus pentasulfide according to claim 3, characterized in that: The feed pipe at the top of the evaporator (4) is connected to a feed pipe (14) and a discharge pipe (15) via a flange.
7. An environmentally friendly processing system for the production of specialty phosphorus pentasulfide according to claim 2, characterized in that: A furnace door for maintenance is provided on the side wall of the insulation layer.
8. The environmentally friendly processing system for preparing fine-grade phosphorus pentasulfide according to claim 1, characterized in that: The primary condenser (5) includes a condenser tube (16), which is covered by an air-cooled tube (17). Several heat sinks (18) are arranged along the axial direction on the outer wall of the condenser tube (16), and the heat sinks (18) are arranged perpendicular to the outer wall of the condenser tube (16).
9. The environmentally friendly processing system for preparing premium-grade phosphorus pentasulfide according to claim 8, characterized in that: The condenser tube (16) is connected to flanges at both ends, and is connected to the evaporator (4) and the secondary condenser recovery unit (6) respectively through the flanges.
10. The environmentally friendly processing system for preparing premium-grade phosphorus pentasulfide according to claim 1, characterized in that: The secondary condenser recovery unit (6) includes a recovery pipe (19), one end of which is connected to an electric heating tube sleeve (20) via a flange, and the other end is connected to a recovery tank.