Bisphenol A

(CH₃)₂C(C₆H₄OH)₂ · 228.29 g/mol

(CH₃)₂C(C₆H₄OH)₂

Monomer for polycarbonate and epoxy resins

Molecular Weight

228.29 g/mol

State

Solid

Catalyst

Cation exchange resin (s

Reactor

Fixed bed columns

Bisphenol A molecular structure — 2D structure

Olefinverbund Integration

Inputs

Phenol, Acetone

→

Product

Bisphenol A

→

Outputs

Polycarbonate, Epoxy Resin

Chemistry & Engineering

Reaction	`2 Phenol + Acetone → BPA + H₂O`
Thermodynamics	Exothermic condensation
Catalyst	Cation exchange resin (sulfonated polystyrene)
Reactor class	Fixed bed columns
Note	Requires high purity phenol.

Applications

Polycarbonate plastic
Epoxy resin hardeners
Thermal paper coatings
PVC stabilizers

Extraterrestrial Production Pattern

Phenol + acetone condensation with acid catalyst
HCl or ion exchange resin catalyst
Operating at 50-90°C with excess phenol
Crystallization and distillation purification

Reaction Diagram

2 C6H5OH + CH3COCH3 -> (CH3)2C(C6H4OH)2 + H2O

Unit Operations

Process steps following chemical engineering unit operation principles

#	Operation	Description
1	Phenol/Acetone Mixing	Mix phenol and acetone in 4:1 molar ratio
2	Acid Catalysis	HCl catalyst at 50-80°C
3	Adduct Formation	Crystallize BPA-phenol adduct
4	Distillation	Remove excess phenol and recover acetone
5	Melt Crystallization	Purify by melt crystallization
6	Prilling	Form prills for shipping/storage

S88 Batch Control Model

ISA-88 BatchML schema — simplified for educational purposes

<?xml version="1.0" encoding="UTF-8"?>
<!-- ISA-88 Batch Control Model for Bisphenol A -->
<!-- Educational schema - simplified for demonstration -->
<BatchML xmlns="http://www.wbf.org/xml/B2MML-V0600">
  
  <ProcessCell ID="BPA_PLANT_CELL">
    <Description>Process cell for Bisphenol A production</Description>
    
    <Unit ID="BPA_PLANT">
      <Description>Main synthesis unit</Description>
      
      <!-- Equipment Modules -->
      <EquipmentModule ID="MIXER">
        <Description>Mixer</Description>
      </EquipmentModule>
      <EquipmentModule ID="REACTOR">
        <Description>Reactor</Description>
      </EquipmentModule>
      <EquipmentModule ID="CRYSTALLIZER">
        <Description>Crystallizer</Description>
      </EquipmentModule>
      <EquipmentModule ID="COLUMN">
        <Description>Column</Description>
      </EquipmentModule>
      <EquipmentModule ID="PURIFIER">
        <Description>Purifier</Description>
      </EquipmentModule>
      <EquipmentModule ID="PRILLER">
        <Description>Priller</Description>
      </EquipmentModule>
    </Unit>
  </ProcessCell>
  
  <MasterRecipe ID="BPA_PLANT_RECIPE">
    <Description>Master recipe for Bisphenol A</Description>
    <ProductID>BISPHENOL_A</ProductID>
    
    <UnitProcedure ID="BPA_PLANT_UP">
      <Description>Unit procedure for synthesis</Description>
      
      <Operation ID="OP_01">
        <Description>Operation 1</Description>
        <Phase ID="MIX">
          <Description>Mix phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
      
      <Operation ID="OP_02">
        <Description>Operation 2</Description>
        <Phase ID="REACT">
          <Description>React phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
      
      <Operation ID="OP_03">
        <Description>Operation 3</Description>
        <Phase ID="CRYSTALLIZE">
          <Description>Crystallize phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
      
      <Operation ID="OP_04">
        <Description>Operation 4</Description>
        <Phase ID="DISTILL">
          <Description>Distill phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
      
      <Operation ID="OP_05">
        <Description>Operation 5</Description>
        <Phase ID="MELT_CRYST">
          <Description>Melt Cryst phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
      
      <Operation ID="OP_06">
        <Description>Operation 6</Description>
        <Phase ID="PRILL">
          <Description>Prill phase</Description>
          <PhaseLogic>
            <Step ID="STEP_1"><Action>Initialize</Action></Step>
            <Step ID="STEP_2"><Action>Execute</Action></Step>
            <Step ID="STEP_3"><Action>Complete</Action></Step>
          </PhaseLogic>
        </Phase>
      </Operation>
    </UnitProcedure>
  </MasterRecipe>
  
</BatchML>

Process CellPhysical grouping of all production equipment

UnitMajor equipment performing the synthesis

Equipment ModulesIndividual devices: reactors, columns, absorbers

PhasesLowest control level: REACT, SEPARATE, PURIFY

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