Bpa A lower foot "phenolic resin glue production operation process

bisphenol A underfoot glue production operation process
(1) preheatthe dissolved lower foot into the reactor to add the first alkali and the previous detogentoluene separation of the water; (2) Start the agitator to heat up and open the cooling water of the condenser for boiling distillation until the solvent has been steamed; (3) Add the first water and the first formaldehydeFormaldehyde should be slowly added to the temperature after boiling back at about 105 degrees C for 30 minutes; (4) After boiling off the steam to the reactor jacket through cold water to add the second alkali and water to the reaction liquid cooled to 80 degrees C below gradually add the second formaldehyde; (5) The reaction fluid is heated to 90 degrees C insulation sampling viscosity to the end to cool down to 50 degrees C at the same time double diluted water; (6) The upper solvent in the oil and water separator is released for another treatmenttechnical quality index viscosity: 100 to 200S (Tu-4 cup) 20 degrees C solid content: 46% or so alkali content: 7% dilution ratio: 1:3 transparent no precipitation layeringequipment and toluene treatment equipment in the existing glue equipment to add a liquid 400kg oil and water separator2 Toluene treatment (1) if the lower foot source plant needs to be recyclable, (2) can be distilled as a solvent for the paint, (3) can be mixed in heavy oil as fuel burning