Blue reactive dyes for wool and preparation method thereof
A technology of reactive dyes and blue, applied in the field of reactive dyes for wool and its preparation, to achieve the effects of eliminating the generation of waste water and waste residue, promoting environmental protection, and excellent solubility
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[0055] Example 1
[0056] 1. Ingredients list:
[0057] Name of raw material Molecular weight Molar ratio Consumption in 100% (Kg) Feeding amount (kmol)
[0058] Copper phthalocyanine 576 1 341.3 0.5924
[0059] Chlorosulfonic acid 116.5 25.1 1732.4 0.5924
[0060] Thionyl chloride 119 8.4 592.2 0.5924
[0061] Monoethanolamine 61 2 73 0.5924
[0062] Fuming sulfuric acid 98 151 8767.1 0.5924
[0063] Note: The amount of oleum is converted to the actual amount of dry condensate.
[0064] 2. The dye preparation process of the present invention operates as follows:
[0065] a. Chlorosulfonation reaction, ice precipitation
[0066] Add 1750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to cool down, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at 65-70°C, and add 59...
Example Embodiment
[0087] Example 2
[0088] The dye preparation process of the present invention operates as follows:
[0089] a. Chlorosulfonation reaction, ice precipitation
[0090] Add 1750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to cool down, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at 65-70°C, and add 595 kg of thionyl chloride in 2 hours. Maintain the temperature at 65-70°C and react for 2 hours. Adjust the temperature to 90°C, maintain the temperature at 90-95°C, and react for 1 hour. Adjust the temperature to 105°C. Maintain the temperature at 105-110°C and react for 1 hour.
[0091] Adjust the temperature to 20-25°C, and add the obtained chlorosulfonated material liquid to the ice precipitation tank in a thin stream to control the temperature. It took 2 hours t...
Example Embodiment
[0107] Example 3
[0108] The dye preparation process of the present invention operates as follows:
[0109] a. Chlorosulfonation reaction, ice precipitation
[0110] Add 1750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to cool down, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at 65-70°C, and add 595 kg of thionyl chloride in 2 hours. Maintain the temperature at 65-70°C and react for 2 hours. Adjust the temperature to 90°C, maintain the temperature at 90-95°C, and react for 1 hour. Adjust the temperature to 105°C. Maintain the temperature at 105-110°C and react for 1 hour.
[0111] Adjust the temperature to 20-25°C, and add the obtained chlorosulfonated material liquid to the ice precipitation tank in a thin stream to control the temperature. It took 2 hours t...
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