Supported hydrochloric acid decolorizing agent as well as preparation method and decolorization process thereof
A supported reagent and decolorizing agent technology, applied in chemical instruments and methods, halogen/halogen acid, chlorine/hydrogen chloride purification, etc., can solve the problems of difficult resin handling, waste of resources, environmental pollution, etc., and achieve short production cycle and effect. Good, short depigmentation time
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Embodiment 1
[0019] The components of the novel load-type reagent used for hydrochloric acid decolorization are by weight percentage: 10% MCM-41 treated with trimethoxysilylpropylamine and trimethylchlorosilane (the specific treatment process is: 20 grams of trimethyl Oxysilyl propylamine is dissolved in 160 milliliters of anhydrous dichloromethane, and this solution is added in the suspension of the anhydrous chloroform that contains 28 grams of ordered mesoporous material MCM-41 of 1600 milliliters.The mixture is at 65 ℃ Stirring for 24 hours. The solid was then filtered and washed with dichloromethane (2*200 mL), and dried under vacuum at 160 °C for 5 hours. The dried solid was then added to 1000 mL of anhydrous chloroform, and 50 g of Tris Chloromethylsilane, stirred at room temperature for 24 hours. Then filtered to obtain a solid powder, which was washed with acetone (3*200 ml) and ether (3*200 ml), and dried in vacuum at 120 ° C for 5 hours to obtain The above-mentioned ordered meso...
Embodiment 2
[0021] The components of the novel load-type reagent used for hydrochloric acid decolorization are by weight percentage: 20% MCM-41 treated with trimethoxysilylpropylamine and trimethylchlorosilane (the specific treatment process is: 20 grams of trimethyl Oxysilyl propylamine is dissolved in 160 milliliters of anhydrous dichloromethane, and this solution is added in the suspension of the anhydrous chloroform that contains 28 grams of ordered mesoporous material MCM-41 of 1600 milliliters.The mixture is at 65 ℃ Stirring for 24 hours. The solid was then filtered and washed with dichloromethane (2*200 mL), and dried under vacuum at 160 °C for 5 hours. The dried solid was then added to 1000 mL of anhydrous chloroform, and 50 g of Tris Chloromethylsilane, stirred at room temperature for 24 hours. Then filtered to obtain a solid powder, which was washed with acetone (3*200 ml) and ether (3*200 ml), and dried in vacuum at 120 ° C for 5 hours to obtain The above-mentioned ordered meso...
Embodiment 3
[0023] The components of the novel load-type reagent used for hydrochloric acid decolorization are by weight percentage: 20% MCM-41 treated with trimethoxysilylpropylamine and trimethylchlorosilane (the specific treatment process is: 20 grams of trimethyl Oxysilyl propylamine is dissolved in 160 milliliters of anhydrous dichloromethane, and this solution is added in the suspension of the anhydrous chloroform that contains 28 grams of ordered mesoporous material MCM-41 of 1600 milliliters.The mixture is at 65 ℃ Stirring for 24 hours. The solid was then filtered and washed with dichloromethane (2*200 mL), and dried under vacuum at 160 °C for 5 hours. The dried solid was then added to 1000 mL of anhydrous chloroform, and 50 g of Tris Chloromethylsilane, stirred at room temperature for 24 hours. Then filtered to obtain a solid powder, which was washed with acetone (3*200 ml) and ether (3*200 ml), and dried in vacuum at 120 ° C for 5 hours to obtain The above-mentioned ordered meso...
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