New Process BASF to Build New DHDPS Plant

BASF started the construction of a new plant for the production of the base material DHDPS (dihydroxy diphenyl sulfone) in Ludwigshafen, Germany in mid January this year.

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The plant will have an annual production capacity of 6000 metric tons and is expected to go on line in mid-2008. DHDPS is a feedstock for the manufacture of the high-performance plastic Ultrason E (polyether sulfone: PES) that BASF has been producing in Ludwigshafen since the early 1990s. Due to the high demand, the production capacity of the Ultrason plant in Ludwigshafen will be increased from the current 6,000 to 12,000 metric tons per year. Therefore, the need for DHDPS is so large that it pays off for BASF to invest in its own DHDPS plant. The entire quantity of the material made in this new plant will be employed to make the plastic. Up until now, BASF had been purchasing the DHDPS needed for the manufacture of Ultrason from outside sources.DHDPS is produced by means of a new, complex process developed by BASF itself.

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