To recycle thermosetting waste plastic by treating the waste thermosetting plastics with super-critical or sub-critical water to convert them to recyclable and valuable substances as monomers, oil, gas and the like.
The thermosetting waste plastics as epoxy resin, phenolic resin, urea resin, melamine resin and the like are smashed and crushed, classified and recovered. The classified resin is hydrolyzed with water under the super- critical or sub-critical conditions and converted to monomers, oils, gasses and the like and they are reused. The amount of gasification is monitored as an indicator of the decomposition of the plastics and the detection is fed back to the decomposition conditions to increase the yield of the objective substance. Thus, thermosetting plastics can be converted to monomers, oils, gasses and the like and they can be used again. In another case, these gasses and oils can be used to heat the water for decomposition.
| JP2005281941 | METHOD FOR SEPARATING RESIN AND APPARATUS FOR SEPARATING RESIN |
| WO/2014/092091 | MAGNETIC PYROLYSIS DEVICE |
MUKAIDE MASAAKI
HIDA HIROSHI
OKOCHI ISAO
YAMASHITA HISAO
Next Patent: WASTE PLASTIC DECOMPOSER