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Fig. 2 - Typical     of water is removed. Once the rubber has been             involves the use of latex. The by far most important
process diagram for  separated form remaining, it is conveyed to a press       type of rubber is SBR (Styrene Butadiene Rubber), that
elastomer plant      that gives to the product the final shape, which is a     have a good abrasion resistance and good aging
                     rubber bale.                                              stability when protected by additives. In 2012, more
                     At this point in time, the SSBR project has entered into  than 5.4 million tons were processed.
                     a final phase, supervising the construction, pre-
                     commissioning and commissioning as the planned                Synthetic rubber has its origin in
                     start is on next June (figure 1).                            two main raw materials: butadiene
                                                                                   and styrene, produced in specific
                     Rubber manufacturing process                               petrochemical production units. When
                                                                                 the two are mixed in the presence of
                     Synthetic rubber has its origin in two main raw             soapsuds in a reactor under desired
                     materials: butadiene and styrene, produced in specific    conditions of temperature and pressure,
                     petrochemical production units. When the two are
                     mixed in the presence of soapsuds in a reactor under                  liquid latex results
                     desired conditions of temperature and pressure, liquid
                     latex results. The downstream elastomer rubber            This analysis fits perfectly into manufacturing process
                     manufacturing generally comprises the following           of SSBR rubber project and above all it fits with the
                     operations (figure 2): raw materials handling, weighing   installation made by APS for Synthos Group S.A. that,
                     and mixing, milling, extruding and calendaring,           in addition to be one of the largest manufacturers of
                     component assembly and building, curing or                chemical raw materials in Poland, is one of the leading
                     vulcanizing, inspection and finishing, storage and        manufacturer of emulsion rubbers and polystyrene in
                     dispatch.                                                 Europe. Indeed the project is intended for the
                     Although the stages described below are applicable to     manufacture of solution butadiene-styrene rubbers and
                     the majority of rubber goods manufactured from solid      poly-butadiene in a continuous process based on
                     polymer, a substantial proportion of rubber production    lithium catalyst (figure 3).

               Industrial Plants - May 2015

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