Method for preparing energy-efficient H-acid
A high-efficiency, energy-saving, and effective technology, which is applied in the preparation of sulfonic acid, sulfonate, organic chemistry, etc., can solve the problems of large discharge of three wastes, low production capacity, and long process routes, so as to reduce economic costs and improve production efficiency Effect
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[0028] The technical solution of the present invention will be described in detail below in conjunction with the embodiments.
[0029] A kind of preparation method of the H-acid with high efficiency and energy-saving effect of the embodiment of the present invention comprises the following process:
[0030] Step 10) performing sulfonation treatment to obtain sulfonated compounds;
[0031] Step 20) Nitrate the sulfonated compound obtained in step 10) to obtain the nitrated compound;
[0032] Step 30) performing denitrification treatment on the nitrated compound obtained in step 20) to obtain the denitrified compound;
[0033] Step 40) extracting the denitrated substance obtained in step 30) to obtain dilute sulfuric acid and an extraction mixture, and performing back extraction on the extraction mixture to obtain a nitro-T acid solution;
[0034] Step 50) performing reduction treatment on the nitro-T acid solution obtained in step 40) to obtain an amino-T acid solution;
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