Dephenolization method of three-mixed oil, phenolic resin and coal pitch mixture
A technology of phenolic resin and three-mixed oil, which is applied in the field of dephenolization of three-mixed oil, phenolic resin and coal tar mixture, can solve the problems of insufficient contact of reaction substances, rapid increase of viscosity, influence on the effect of dephenolization, etc. β resin content, simple process, and the effect of improving economic benefits
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Embodiment 1
[0078] Put 2 tons of triple-mixed oil with a phenol content of 6% in the triple-mixed oil storage tank 101 into the stirred reactor 104, heat the stirred reactor 104 to 120° C. in advance with steam, and the stirring speed of the stirred reactor 104 is 60 rpm Minutes, then add the NaOH catalyst 1.8kg (actually add 4.5kg of 40% NaOH solution) in the catalyst storage tank 102, then add the formaldehyde 54kg in the aldehydes storage tank 103 (actually add 146kg of 37% formaldehyde solution, at this time The molar ratio of formaldehyde / phenol is 1.5:1), the adding rate of formaldehyde is controlled to be 100kg / h, and the condensation reaction is carried out. After the formaldehyde is added, react at 120°C for 4 hours, and the reaction product enters the solid-liquid separation device 105 Carry out solid-liquid separation, the separation conditions are: pressurized filtration at 100°C, the pore size of the filter element is 10 μm, the pressurized gas is nitrogen, and the filtration ...
Embodiment 2
[0080] Put 2 tons of triple-mixed oil with a phenol content of 4% in the three-mixed oil storage tank 101 into the 104 reactor, stir the reactor 104, heat the stirred reactor 104 to 130 ° C in advance with water steam, and stir the stirred reactor 104 The rotating speed is 100 rev / min, then add the Ba(OH) in the catalyst storage tank 102 2 Catalyst 1.2kg (actually add 3% Ba(OH) 2 solution 202.5kg), then add the acetaldehyde 44kg in the aldehydes storage tank 103 (actually add 40% acetaldehyde aqueous solution 110kg, and now the mol ratio of acetaldehyde / phenol is 1.2:1), control the rate of addition of acetaldehyde Condensation reaction at 100kg / h, after the addition of acetaldehyde, react at 130°C for 3 hours, and the reaction product enters the solid-liquid separation device 105 for solid-liquid separation. The separation condition is: centrifugal filtration at 90°C , the centrifugal speed is 1800 rpm, and the filter cloth pore size is 20 μm; the solid phase (phenolic resin...
Embodiment 3
[0082] Put 3 tons of triple-mixed oil with a phenol content of 11% in the triple-mixed oil storage tank 101 into the stirred reactor 104, heat the stirred reactor 104 to 110° C. in advance with steam, and the stirring speed of the stirred reactor 104 is 110 rpm Minutes, then add the ammoniacal liquor (massfraction 25%) catalyzer 39.6kg in the catalyst storage tank 102, then add the furfural 330kg (the mol ratio 1.05:1 of furfural / phenol) in the aldehydes storage tank 103, control the rate of addition of furfural 660kg / h, carry out condensation reaction, after adding furfural, react at 110°C for 3 hours, and the reaction product enters solid-liquid separation device 105 for solid-liquid separation, and the separation condition is: pressurized at 90°C Filtration, the pore size of the filter element is 30 μm, the pressurized gas is nitrogen, and the filtration pressure is 0.1 MPa. The separated solid phase (phenolic resin) enters the drying equipment 106, and the phenolic resin is...
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