Sumitomo Chemical Company, Limited

Masato Suzue

Satoshi Itoguchi

Shohei Fukuhara

A method for drying polyolefin-containing particles includes a drying step of supplying polyolefin-containing particles to a drying container and drying the polyolefin-containing particles in the drying container. In the drying step, a value determined by the following formula (a) is −0.20 or more and 1.05 or less.0.00304×apparatus diameter [m]+0.00261×bed height [m]+0.0179×residence time [hr]+0.00213×particle temperature in drying container [K]−0.0109×inclination angle [degree]+0.0212×CXS component amount [% by mass]  Formula (a):

Method for drying polyolefin-containing particles and method for storing polyolefin-containing particles

A method for drying polyolefin-containing particles includes a drying step of supplying polyolefin-containing particles to a drying container, supplying a drying gas to the drying container, and drying the polyolefin-containing particles in the drying container. In the drying step, a numerical value determined by the following formula (a) is 441 or more and 600 or less.38.0×[η]CXIS[dL/g]−0.500×CXIS content[% by mass]+1.20×particle temperature during drying[K]+3.29×drying time[hr]  Formula (a):

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Ichihara, Japan

Masato Suzue