By Pratima Desai LONDON (Reuters) – France’s Aluminium Dunkerque has agreed to sell some of its aluminium production to commodity trader and miner Glencore, which will supply one of Europe’s largest aluminium producers with alumina used to make the metal from 2023. The multi-year contract for Glencore to sell alumina to France’s Aluminium Dunkerque a “portion” of its needs comes at a time of disruptions to commodity exports such as alumina after Russia invaded Ukraine. Aluminium Dunkerque (AD) has also agreed to a multi-year deal to sell “a portion” of its aluminium to London-listed Glencore i…