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[Yellow Phosphorus] Yellow Phosphorus High-Temperature Furnace Gas YT-RCW Green Process
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Product Description
INTERMET
[Project Overview]
In response to the industry’s longstanding pain points in conventional yellow-phosphorus production—namely, the difficult disposal of sludge-based phosphorus hazardous waste, low product quality, high energy consumption, and severe pollution—Chengdu Yitai Technology has launched the YT-RCW green solution. This solution adheres to the principle of “efficient separation first, followed by efficient recovery,” and before water washing and cooling, it employs All-Dry Filtration and Separation Technology Gas–solid separation is achieved using a high-temperature metallic membrane. This process overturns the conventional wet-process approach of co-precipitation of phosphorus-containing furnace gas and furnace ash, eliminating sludge phosphorus at the fundamental level and at the source of pollution, thereby marking a new stage in the conversion and utilization of yellow phosphorus resources.
【Process Advantages】
1) High-temperature dry separation of dust from yellow phosphorus furnace gas eliminates sludge phosphorus, enhances yellow phosphorus quality, and achieves a 100% first-pass yield.
2) Increased single-pass yield, dust recovery and reuse, and a ≥12% improvement in phosphorus resource utilization for yellow phosphorus products.
3) The process flow is shortened, resulting in significant energy savings, with the unit energy consumption for yellow phosphorus production reduced by ≥18% across the entire process.
4) Eliminate large-scale uncontrolled emissions, achieve a reduction of ≥18% in the carbon dioxide emissions per unit of yellow phosphorus produced across the entire production process, and realize clean and environmentally friendly production.
5) Economic benefits have all improved significantly.
1. Source-control management to eliminate hazardous sludge phosphorus waste
- Eradicating sludge phosphorus: Eliminate the formation of sludge phosphorus at the process level, Implement the elimination of the sludge phosphorus pond. , thereby completely eliminating the extensive post-processing steps in traditional methods, such as steaming, boiling, and rinsing, required for mud-phosphorus treatment.
- Cleaner Production: Dry process No wastewater discharge , to prevent the formation of sludge phosphorus and water pollution, thereby achieving Clean and environmentally friendly production , yielding clean flue gas (≤30 mg/Nm³) and valuable dry ash.
2. Exceptional quality that enhances product value
- Ultra-high purity: Product purity can reach 99.95–99.99% , which is significantly superior to the 99.5–99.9% achieved by conventional processes.
- Stable quality: Product The pass rate for a single attempt is 100% , resulting in significantly improved quality stability and enabling the direct production of pure yellow phosphorus.
3. Cost reduction and efficiency enhancement, with significant economic benefits
- Resource conservation: Achieve higher phosphorus recovery and grade , significantly reducing phosphorus loss during the process.
- Energy consumption reduction: Compared with conventional electrostatic precipitator technology, energy consumption is reduced by more than 50%; compared with traditional sludge-based phosphorus removal processes, it significantly cuts electricity consumption, flue-gas treatment costs, and labor expenses.
4. Inherently safe and reliable operation
- Safety and Explosion-Proof: Process flow No electric spark is generated. , meeting the safety production requirements for yellow phosphorus, Achieve safe production 。
- Stable and efficient: Dust removal efficiency >99.95% , maintaining high efficiency over the long term and remaining unaffected by variations in dust specific resistivity and other characteristics.
【Technological Innovation Points】
1. Core Material for Flexible Metal Membranes
- High-precision filtration: The core filter element achieves a filtration accuracy of 0.1 μm, with excellent pore-size uniformity, low flow resistance, and high flux.
- High-temperature and corrosion resistance: Can withstand temperatures up to 450°C and is resistant to H 2 S, SO 2 , SO 3 It is resistant to corrosive gases and exhibits excellent oxidation resistance, allowing direct treatment of high-temperature phosphorus-containing vapors.
- Surface filtration technology: Membrane filtration is a surface filtration process that features a self-cleaning design, excellent backblowing dust removal performance, long filter element life, and recyclability.
2. Dry-Process Membrane Gas–Solid Separation Technology
- Process Innovation: Pioneered a complete set of dry-process membrane-based gas–solid separation technology for yellow phosphorus production, enabling highly efficient separation of phosphorus vapor from dust under high-temperature gaseous conditions.
- Authoritative Certification: The technology has been evaluated and certified by the China National Light Industry Council as being at an internationally leading level; it has also been recognized as a model case for “advanced manufacturing” in the practice of new-quality productive forces.
3. Comparative Generation-Specific Advantages of Conventional Electrostatic Precipitation (ESP)
- No secondary dust generation: Physical filtration directly captures dust particles, thereby eliminating the secondary dust pollution caused by the rapping and ash removal process in electrostatic precipitators.
- High adaptability: It addresses the challenges of electrostatic precipitator electrode plates being prone to corrosion and deformation, as well as efficiency degradation caused by variations in dust resistivity, while reducing maintenance costs.
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