Method for Viscosity Reduction of Coal Water Slurry
A coal-water slurry and viscosity reduction technology, which can be used in fuels, liquid carbon-containing fuels, petroleum industry, etc., and can solve problems such as poor viscosity reduction effect.
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Embodiment 1
[0057] 1. Free radical polymerization synthesis intermediate product
[0058] Add 1 mol of chloroform to a 500 ml three-necked flask, then add 0.1 mol of maleic anhydride, 0.12 mol of dodecene, and 0.03 mol of lauryl peroxide, respectively, and mechanically stir to dissolve it completely. React at 100°C for 2 hours, then The temperature was lowered to 70°C, 0.12 mol of styrene was slowly added, and the reaction was continued for 5 hours to obtain an intermediate product.
[0059] 2. Chemically modified synthetic viscosity reducer
[0060] Into the three-necked flask, continue to add 0.06 mol of polybutylene glycol and 0.02 mol of p-toluenesulfonic acid, stir to dissolve, and continue to react at 100° C. for 5 hours to obtain the viscosity reducer.
[0061] 3. Purification and drying
[0062] Decrease the temperature of the viscosity reducer in 2 to 30°C, then add it to ethanol, and then add the precipitated solid to 30°C water to wash, repeat several times, and finally obtain the follo...
Embodiment 2
[0067] 1. Free radical polymerization synthesis intermediate product
[0068] Add 1 mol of chloroform to a 500 ml three-necked flask, then add 0.1 mol of maleic anhydride, 0.12 mol of dodecene, and 0.03 mol of lauryl peroxide, respectively, and mechanically stir to dissolve it completely. React at 100°C for 2 hours, then The temperature was lowered to 70°C, 0.12 mol of styrene was slowly added, and the reaction was continued for 5 hours to obtain an intermediate product.
[0069] 2. Chemically modified synthetic viscosity reducer
[0070] To the three-necked flask, continue to add 0.06 mol of amino naphthalenesulfonic acid and 0.02 mol of potassium hydroxide, stir to dissolve, and continue to react at 100° C. for 5 hours to obtain the viscosity reducer.
[0071] 3. Purification and drying
[0072] Decrease the temperature of the viscosity reducer in 2 to 30℃, then add it to ethanol, then add the precipitated solid to 30℃ water to wash, repeat several times, and finally get the followin...
Embodiment 3
[0077] 1. Free radical polymerization synthesis intermediate product
[0078] Add 1 mol of chloroform to a 500 ml three-necked flask, then add 0.1 mol of maleic anhydride, 0.12 mol of dodecene, and 0.03 mol of lauryl peroxide, respectively, and mechanically stir to dissolve it completely. React at 100°C for 2 hours, then The temperature was lowered to 70°C, 0.12 mol of styrene was slowly added, and the reaction was continued for 5 hours to obtain an intermediate product.
[0079] 2. Chemically modified synthetic viscosity reducer
[0080] To the three-necked flask, continue to add 0.06 mol of aminohydroxynaphthalenesulfonic acid and 0.02 mol of potassium hydroxide, stir to dissolve, and continue to react at 100° C. for 5 hours to obtain the viscosity reducer.
[0081] 3. Purification and drying
[0082] Decrease the temperature of the viscosity reducer in 2 to 30℃, then add it to ethanol, then add the precipitated solid to 30℃ water to wash, repeat several times, and finally get the fo...
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