Carbazochrome sodium sulfonate and preparing method thereof
A technology of sodium carboxysulfonate and sodium bisulfite, applied in the direction of organic chemistry and the like, can solve the problems of unsuitable industrial production, complicated operation, many steps, etc., and achieve the effects of excellent physical and chemical properties, short reaction steps, and mild reaction conditions.
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Embodiment 1
[0064] A) raw material dissolution reaction, 50 parts of purified water, 10 parts of epinephrine color hydrazone, 8 parts of sodium bisulfite and 1 part of ascorbic acid that will be weighed in parts by weight are put into reaction tank, stir while heating, when heating temperature is At 60°C, the solid matter was completely dissolved, and the reaction was continued at 60°C for 30 minutes to obtain a reaction solution;
[0065] B) decolorization and separation, in the reaction solution obtained by step A), add a decolorant, i.e. medicinal activated carbon, the addition of medicinal activated carbon is 0.15% of the weight of the reaction solution, maintain the temperature at 60° C. and stir and decolorize for 60 minutes, and the decolorization is completed Afterwards, spin filter, wash the residue with purified water, spin dry, and combine the spin filtrate to obtain the liquid to be crystallized;
[0066] C) crystallization, the pH of the solution to be crystallized obtained i...
Embodiment 2
[0069] A) raw material dissolution reaction, 80 parts by weight of purified water, 12 parts of adrenaline color hydrazone, 10 parts of sodium bisulfite and 5 parts of ascorbic acid are dropped into the reaction tank, stirred while heating, when the heating temperature is At 70°C, the solid matter was completely dissolved, and the reaction was continued at 70°C for 60 minutes to obtain a reaction solution;
[0070] B) decolorization and separation, in the reaction solution obtained by step A), add a decolorant, i.e. medicinal activated carbon, the addition of medicinal activated carbon is 0.16% of the weight of the reaction solution, maintain the temperature at 70° C. and stir and decolorize for 60 minutes, and the decolorization is completed Afterwards, spin filter, wash the residue with purified water, spin dry, and combine the spin filtrate to obtain the liquid to be crystallized;
[0071] C) crystallization, the pH of the solution to be crystallized obtained in step B) is a...
Embodiment 3
[0074] A) raw material dissolution reaction, 100 parts of purified water, 15 parts of adrenaline color hydrazone, 12 parts of sodium bisulfite and 3 parts of ascorbic acid that will be weighed in parts by weight are dropped into the reaction tank, stirred while heating, when the heating temperature is At 90°C, the solid matter was completely dissolved, and the reaction was continued at 90°C for 20 minutes to obtain a reaction solution;
[0075] B) decolorization and separation, in the reaction liquid that is obtained by step A), add decolorant namely medicinal active carbon, the add-on of medicinal active carbon is 0.155% of the weight of reaction liquid, maintain at 90 ℃ of temperature and stir decolorization 40min, decolorization completes Afterwards, spin filter, wash the residue with purified water, spin dry, and combine the spin filtrate to obtain the liquid to be crystallized;
[0076] C) crystallization, the pH of the solution to be crystallized obtained in step B) is a...
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