Dimethyl sulfoxide industrial waste liquid regeneration treatment process for producing DIANP explosives
A dimethyl sulfoxide, industrial waste liquid technology, applied in filtration treatment, natural water treatment, water/sewage treatment and other directions, can solve problems such as decomposition and safety hazards, achieve control of discharge, reduce environmental pollution, and reduce production cost effect
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Embodiment 1
[0036] This embodiment provides a kind of dimethyl sulfoxide industrial waste liquid regeneration treatment process for producing DIANP explosives, which specifically includes the following steps:
[0037] Step 1, vacuum distillation: add 300mL of dimethyl sulfoxide industrial waste liquid containing DIANP explosives into a 500mL vacuum distillation bottle, and gradually raise the temperature under the condition that the vacuum degree is not lower than 0.084MPa, and the temperature of the solution reaches a maximum of 90°C , when the temperature of the distillation head is 50-55 ℃, there is water distilled out, and when the water output is not less than 70% of the total water, the heating can be stopped and the distillation can be stopped;
[0038] Step 2, desalination: cooling and crystallizing the waste liquid obtained after step 1 distillation, the cooling end point reaches a minimum of 30°C, vacuum filtration, and collecting the filtrate;
[0039] Step 3, water removal: Di...
Embodiment 2
[0046] Same as Example 1, the difference is that the mass ratio of sodium azide to N-nitro-diethanolamine dinitrate in step 5 in this example is 0.56:1, in step 6, keep warm for 7 hours, and finally obtain DIANP 26.2 g. The yield is 81.9%, and the purity is 92.0%.
Embodiment 3
[0048] Same as Example 1, the difference is that the mass ratio of sodium azide and N-nitro-diethanolamine dinitrate in step 5 in this example is 0.65:1, in step 6, keep warm for 9h, and finally obtain DIANP 27.8g. Yield 86.9%, purity 99.0%.
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