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Epoxy resin manufacturing process with flow chart

Raw materials

Bisphenol-A, Epichlorohydrine, sodium hydroxide and methylisobutylketone are the main raw materials required
Flow sheet of epoxy resin production process

Epichlorohydrine and bisphenol-A as respective raw material are fed into the reaction vessel. These are melted and undergo the first stage reaction with temperature maintained constant.

In this first stage reaction, which is exothermic, epoxy radical is separated from epichlorohydrine to be attached to hydroxyl radical, thus producing chlorohydrine ether.

In the second stage reaction the produced chlorohydrine ether causes a...

dechloration reaction to occur in the presence of NaOH, producing a terminal epoxy radical.

The monoglycidil ether of bisphenol-A produced as a result continues to react with pisphenol-A and epichlorhydrine and gradually forms a high polymer. On completion of polymerization, the polymer is transferred through storage tank to the epichlorohydrine separation evaporator, where epichlorohydrine is separated under vacuum.

Methylisobutylketone is used to eliminate NaCl and the reaction by product by the difference in specific gravity, with its acidity adjusted. The polymer with adjusted acidity is evaporated under vacuum in the methylisobutylketone recovery process to eliminate MIBK, thus obtaining epoxy product.

The raw materials and reactions to be conducted for the production of epoxy resin are organic in nature and needs to be conducted in a properly controlled and closed system. This will be performed during selection of technology. The wastes to be generated will be collected and treated to avoid pollution of the environment.

Machinery and equipment

  1. Storage tank
  2. Water tank
  3. Recovery Tank
  4. Salt solution Tank
  5. Reactor
  6. Evaporator
  7. Condenser
  8. Filter
  9. Pump
  10. Vacuum pump
  11. Boiler
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