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Styrene-Butadiene Rubber Production By Intratec Solutions

By Chemical Engineering |

This column is based on “Styrene-Butadiene Rubber Production: Cost Analysis,” a report published by Intratec Solutions that can be found at: www.intratec.us/analysis/styrene-butadiene-rubber-production-cost. Styrene-butadiene rubber (SBR) is an elastomer that was originally developed prior to World War II as a replacement for natural rubber. SBR is used for manufacturing vehicle tires, but is also used in other applications, such as: adhesives, flow modifiers for other elastomers, footwear, pharmaceutical and food-contact articles, and even chewing gums. The process The following paragraphs describe a cold emulsion-polymerization process for SBR production from butadiene and styrene. SBR grades generated in this type of process are usually referred to as emulsion SBR (eSBR). Figure 1 presents a simplified flow diagram of the process, showing the main pieces of equipment. Figure 1. This figure shows a diagram of SBR production from styrene and butadiene via a cold emulsion process[/caption] Polymerization. Styrene and butadiene are mixed with an emulsifier and demineralized water to form the emulsion that will be fed to the polymerization reactors. The polymerization occurs in a connected series of continuously stirred, jacketed…
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