Εξώφυλλο

Κοιτάσματα σπάνιων γαιών και ενεργειακή μετάβαση = Rare earth deposits and eneregy transition.

Αλεξάνδρα Νικόλαος Κύρου

Περίληψη


Η κλιματική αλλαγή είναι ένα επίμονο πρόβλημα για την ανθρώπινη κοινωνία για πάνω από τρεις δεκαετίες και κάθε χρόνο γίνεται ακόμη μεγαλύτερο πρόβλημα. Η ζήτηση για τα κοιτάσματα σπάνιων γαιών αναμένεται να αυξηθεί κατά 400-600% τις επόμενες δεκαετίες και η ανάγκη για στοιχεία όπως το λίθιο και ο γραφίτης που χρησιμοποιούνται στις μπαταρίες ηλεκτρικών οχημάτων, θα αυξηθεί έως και 4.000% αντίστοιχα. Η εξόρυξη των σπάνιων γαιών για βιομηχανική χρήση είναι ένα σχετικά σύγχρονο εγχείρημα. Το πρώτο ορυχείο ήταν το Mountain Pass, που βρίσκεται στην έρημο Mojave της Καλιφόρνια. Το ορυχείο άνοιξε το 1952 για την προμήθεια ουρανίου για στρατιωτικούς και ερευνητικούς σκοπούς, και αναπτύχθηκαν μέθοδοι για την απομόνωση και την αφαίρεση στοιχείων σπάνιων γαιών για την εξασφάλιση καθαρού εφοδιασμού ουρανίου. Σήμερα, παρόμοιες μέθοδοι χρησιμοποιούνται για την απομάκρυνση του ουρανίου και του θορίου κατά την παραγωγή στα σπάνια ορυκτά γαιών.Επί του παρόντος, η παγκόσμια προσφορά στα κοιτάσματα σπάνιων γαιών είναι σε μεγάλο βαθμό συγκεντρωμένη στην Κίνα, η οποία ελέγχει πάνω από το 90% της αγοράς. Αναπτύσσοντας μια πιο ανθεκτική και αυτάρκη αλυσίδα εφοδιασμού, η κάθε ενέργεια στοχεύει να μετριάσει αυτούς τους κινδύνους και να διασφαλίσει ότι η ενεργειακή μετάβαση της Ευρώπης παραμένει σε θετικό πλαίσιο. Επίσης, μια μελλοντική αυστηροποίηση των περιβαλλοντικών προτύπων που σχετίζονται με αυτόν τον τομέα είναι περισσότερο από πιθανή και αυτό που έχει ερμηνευτεί ως επίδειξη ισχύος, αναμένεται να επαναληφθεί στο μέλλον.

Climate change has been a persistent problem for human society for over three decades, and every year it becomes an even bigger problem. Demand for rare earth deposits is expected to increase by 400-600% in the coming decades, and the need for elements such as lithium and graphite used in electric vehicle batteries will increase by up to 4,000% respectively. The mining of rare earths for industrial use is a relatively modern enterprise. The first mine was Mountain Pass, located in California's Mojave Desert. The mine opened in 1952 to supply uranium for military and research purposes, and methods were developed to isolate and remove rare earth elements to ensure a clean supply of uranium. Today, similar methods are used to remove uranium and thorium during the production of rare earth minerals. Currently, the global supply of rare earth deposits is largely concentrated in China, which controls over 90% of the market. By developing a more resilient and self-sufficient supply chain, each action aims to mitigate these risks and ensure that Europe's energy transition remains on a positive footing. Also, a future tightening of environmental standards related to this sector is more than likely and what has been interpreted as a show of strength is expected to be repeated in the future.

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