MELLAGRID

Material separation columns and parts thereof

[Chemical apparatus, namely columns for the performance of chemical reactions involving fluid media which come into contact with each other]

Distillation columns, rectification columns, absorption columns, desorption columns, and [extraction columns for substance and heat exchange and parts therefor; ]and apparatus for material exchange, namely columns for the separation of substances and parts therefor, structured packings and fillings for such columns and distributors for columns for substance and heat exchange