the starting material being a waste, residue or of undefined composition

Full Title

Aspects relating to sorbent materials > Aspects relating to the composition of sorbent or filter aid materials > Sorbents characterised by the starting material used for their preparation > the starting material being a waste, residue or of undefined composition

Child Classifications

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• B01J 2220/4881 Residues from shells, e.g. eggshells, mollusk shells
• B01J 2220/4887 Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
• B01J 2220/4893 Residues derived from used synthetic products, e.g. rubber from used tyres