Method for recycling organic waste in BDP wastewater
A technology for organic waste and wastewater, applied in water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve problems such as cost reduction and difficult BDP wastewater treatment, and achieve the effect of reducing treatment costs and treatment costs.
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Embodiment 1
[0037] 1) Add 1200g of BDP wastewater into a four-necked flask with stirring, start stirring, add 240g of hydrochloric acid dropwise, adjust to pH≤1, stir for 30min, transfer to a separatory funnel for layering, and obtain 120g of oil phase and 1320g of water phase , the COD of the water phase is about 30,000 mg / L, and the COD of the oil phase is in the range of 1.5-1.9 million mg / L;
[0038] 2) Transfer 120 g of the oil phase obtained in step 1) to a four-necked flask, and raise the temperature to 110° C. to remove water and phenol under a vacuum degree of -0.98 MPa. The distillation time is 2 hours; after the distillation is completed, add 10 g of PCl 5 And insulate and react for 3 hours at a temperature of about 80°C;
[0039] 3) Step 2) After the heat preservation reaction is completed, add 0.11g of magnesium chloride, after heating up to 90°C, add 10g of bisphenol A, continue to heat up to 95°C, and keep warm for 2h;
[0040] 4) Step 3) After the heat preservation is com...
Embodiment 2
[0046] 1) Add 1200g of BDP wastewater into a four-neck flask with stirring, start stirring, add 240g of hydrochloric acid dropwise, adjust to pH≤1, stir for 30min, transfer to a separatory funnel for layering, and obtain 120g of oil phase and 1320g of water phase , the COD of the water phase is about 30,000 mg / L, and the COD of the oil phase is in the range of 1.5-1.9 million mg / L;
[0047] 2) Transfer 120 g of the oil phase obtained in step 1) to a four-necked flask, and raise the temperature to 110° C. to remove water and phenol under a vacuum degree of -0.98 MPa. The distillation time is 2 hours; after the distillation is completed, add 10 g of PCl 5 And insulate and react for 3 hours at a temperature of about 80°C;
[0048] 3) Step 2) After the heat preservation reaction is completed, add 0.11g of magnesium chloride, after heating up to 90°C, add 10g of bisphenol A, continue to heat up to 95°C, and keep warm for 4h;
[0049] 4) Step 3) After the heat preservation is compl...
Embodiment 3
[0051] The implementation method of embodiment 3 is the same as embodiment 2, except that "the quality of phenol added dropwise in step 4) in embodiment 3 is 23g", and all the other experimental conditions are identical with embodiment 2. After the final reaction in Example 3, 88g of the crude product was obtained, and 83g of the BDP product was obtained after washing. The BDP product was tested, and the TPP content in the product was measured to be 2.98%, monomer 86.6%, dimer 6.6%, trimer 0.948%, tetramer 0.114%, phenol 0.018%, and the rest were unknown impurities.
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