Sulingen, Germany -- H&S Anlagentechnik has developed a new reactor type (MP = multi-material to polyol) to make medium sized amounts of polyols -- 500 to 1000 tonnes a year.
H&S said with this reactor, "for the first time it is possible to synthesise various raw materials to APP (aromatic polyester polyol) in one system."
The reactor needs very little space, is delivered as an operational module, and is more economical than conventional systems due to lower manufacturing costs. The MP reactor enables a larger group of users to produce APP as needed. Target markets are in particular emerging countries where demand for PU rigid foam is increasing.
With a "multi-feeding system," H&S's process engineering principle allows the system to process unmixed PET batches such as PET flakes, PET production waste, and PET film, or terephthalic acid to make APP. The same reactor can thus be used to synthesise the desired quality with different, more economical materials.
The MP reactor's volume of up to two cubic metres allows the compact core component to be pre-installed for shipping in a 20-ft container. As a result the user has much lower assembly costs, as well as increased safety, as no welding is needed by the customer. Process time for a batch is about 10 hours.
H&S can also provide tank storage technology for polyol or blending stations (for additional formulas).
See more in the next issue of Urethanes Technology International.