10

Oil

Vacuum Pump

Butadiene Recycle

Butadiene Recycle

Compressor

Mixing Tank

Polymerization Reactors (60% conversion, 5-10°C, 1 hr)Shortstop

Blowdown tank

Steam

Steam

Flash distillation (1 atm)Vacuum distillation

13

2

333

7

5

4

6 8

9 11 12

Stripper

13

14Antioxidant

Latex Blend Tanks

151617

18

19 20

Coagulation TanksConversion Tank

Filter

Drier Bailer

ESBR

STYRENE

BUTADIENE

Description Amount (kg/hr)

1

Water (180 parts by weight) 232.825Emulsifier (5 parts by weight) 6.467

Tert-dodecyl Mercaptan (0.2 parts by weight) 0.259Cumene Hydroperoxide (0.17 parts by weight) 0.22

FeSO4 (0.017 parts by weight) 0.022EDTA (0.06 parts by weight) 0.078

2 Total amount of other raw materials 239.8713 Fresh Butadiene 58.2064 Fresh Styrene 30.8825 Total Butadiene in Feed (Fresh + Recycled) 97.016 Total Styrene in Feed (Fresh + Recycled) 31.1327 Polymerization Product introduced to flash tank 51.5338 Shortstop9 Recovered Butadiene (99.7% recovery) 38.804

10 Butadiene-free Latex from the Flash Distillation Column 12.729

11 Steam supplied in the Stripping Column 1.71612 Recovered Styrene (80% recovery) 0.2513 Latex from the Stripping Column 12.479

14 Product from the latex blend tankPa check!

8.822 kg liquid/kg dry solid

152% H2SO4 41.5978% NaCl 12.479

16 Product from the coagulation tank 66.555 kg liquid/hr17 Product from the Rotary Vacuum Screen

18 Water supplied in the washing tank 0.541 kg liquid/kg dry solids

19 Product from the washing tank

20 Water Drained from the Rotary Vacuum Screen 79.399 kg liquid/kg dry solids

21 Product from the second Rotary Vacuum Screen

22 Product from the Crumb Rubber PresserKg liquid/kg dry solid removed from Crumb Rubber

Press 0.655

23 Final Product 398.246

Reference:

1. Riegel, Emil Raymond, and James Albert Kent. "Rubber." Kent and Riegel's Handbook of Industrial Chemistry and Biotechnology. 11th ed. Vol. I & II. New York: Springer, 2007. 701.

2. Emulsion Styrene-Butadiene Rubber (E-SBR) (n.d.). Retrieved from http://www.iisrp.com/WebPolymers/09E-SBRPolymerSummaryJuly16.pdf on February 28, 2016.

3. CHEM-GUIDE (2010) Retrieved from http://chemguide.blogspot.com/2010/04/polymer. html on February 28, 2016.