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            Tunhe Energy
            BDO
            PTMEG
            γ-butyrolactone
            THF
            Polyurethane
            Tunhe Polyester
            PET
            PBT
            Biodegradable Resin
            TPEE
            Tunhe New Material
            EPS
            Tunhe Profiles
            PVC
            Tunhe Degradable
            PBAT+PLA+Filler

            γ-butyrolactone (GBL)

            Using copper as catalyst, γ-butyrolactone (GBL) can be obtained through gaseous phase or liquid phase catalytic dehydrogenation of BDO. GBL is the second largest consumer of BDO in China. BDO is a highly soluble, non-toxic, safe and convenient high-boiling-point solvent. In organic synthesis, it is used to produce α-pyrrolidone and N-Methyl pyrrolidone and a series of high value-added products such as vinyl pyrrolidone, polyvinyl pyrrolidone and so on are derived, these products are widely used in pesticides, pharmaceuticals, cosmetics and etc.

             

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