{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1189"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1189","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΥΜΒΟΛΗ ΣΤΟΝ ΕΜΠΛΟΥΤΙΣΜΟ ΤΟΥ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΥ ΦΩΣΦΟΡΙΤΗ ΗΠΕΙΡΟΥ","abstract":"THE POSSIBILITY OF BENEFICIATION OF THE UNALTERED LOW-GRADE PHOSPHATE ROCK OF EPIROUS (GREECE) WAS INVESTIGATED FOR ECONOMIC EXPLOITATION OF THE ROCK. THE MINERALOGICAL EXAMINATION OF THE ROCK AND THE PRELIMINARY TESTS FOR ITS BENEFICIATION (SIEVE ANALYSIS, HEAVY LIQUID TESTS) WERE PERFORMED. BASED ON THE RESULTS FROM THE HEAVY LIQUID TESTS, AN ATTEMPT WAS MADE FOR THE PHOSPHATE ROCK TO BE CONCENTRATED BY GRAVITY METHODS (HEAVY MEDIA, SPIRAL CONCENTRATION, SHAKING TABLING). THE APPLICATION OF METHODS BASED ON THE PHYSICOCHEMICAL PROPERTIES OF THE MINERALS WERE ALSO INVESTIGATED (FLOTATION, SKIN FLOTATION). NEW METHODS OF BENEFICIATION (SELECTIVE MAGNETIC COATING) AS WELL AS METHODS APPLICABLE TO MINERALS WITH A VERY FINE SIZE OF LIBERATION (DISPERSION/SELECTIVE FLOCCULATION) WEREEXAMINED AT THE LAST PART OF THE RESEARCH.","abstract_html":"THE POSSIBILITY OF BENEFICIATION OF THE UNALTERED LOW-GRADE PHOSPHATE ROCK OF EPIROUS (GREECE) WAS INVESTIGATED FOR ECONOMIC EXPLOITATION OF THE ROCK. THE MINERALOGICAL EXAMINATION OF THE ROCK AND THE PRELIMINARY TESTS FOR ITS BENEFICIATION (SIEVE ANALYSIS, HEAVY LIQUID TESTS) WERE PERFORMED. BASED ON THE RESULTS FROM THE HEAVY LIQUID TESTS, AN ATTEMPT WAS MADE FOR THE PHOSPHATE ROCK TO BE CONCENTRATED BY GRAVITY METHODS (HEAVY MEDIA, SPIRAL CONCENTRATION, SHAKING TABLING). THE APPLICATION OF METHODS BASED ON THE PHYSICOCHEMICAL PROPERTIES OF THE MINERALS WERE ALSO INVESTIGATED (FLOTATION, SKIN FLOTATION). NEW METHODS OF BENEFICIATION (SELECTIVE MAGNETIC COATING) AS WELL AS METHODS APPLICABLE TO MINERALS WITH A VERY FINE SIZE OF LIBERATION (DISPERSION/SELECTIVE FLOCCULATION) WEREEXAMINED AT THE LAST PART OF THE RESEARCH.","abstract_has_math":false,"creators":["Αναστασάκης, Γεώργιος","Anastasakis, Georgios"],"institution":"National Technical University of Athens (NTUA)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1989,"date_issued":"1989","date_published":"1989","updated_at":"2026-07-24T02:24:46Z","subjects":["Εμπλουτισμός","ΗΠΕΙΡΟΣ, ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΚΛΕΚΤΙΚΗ ΚΡΟΚΙΔΩΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΠΙΠΛΕΥΣΗ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ,ΒΑΡΙΑ ΔΙΑΜΕΣΑ","EPIRUS, UNALTERED PHOSPHATE ROCK, BENEFICIATION","UNALTERED PHOSPHATE ROCK, FLOTATION","UNALTERED PHOSPHATE ROCK, GRAVITY CONCENTRATION","Επιστήμες Μηχανικού και Τεχνολογία","Περιβαλλοντική Μηχανική","Engineering and Technology","Environmental Engineering"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1189"],"render_values":[{"text":"10.12681/eadd/1189","href":"https://doi.org/10.12681/eadd/1189","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1189","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Αναστασάκης, Γεώργιος","Anastasakis, Georgios"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1989"]},{"key":"dc:publisher","label":"Institution","values":["National Technical University of Athens (NTUA)","Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Εμπλουτισμός","ΗΠΕΙΡΟΣ, ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΚΛΕΚΤΙΚΗ ΚΡΟΚΙΔΩΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΠΙΠΛΕΥΣΗ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ,ΒΑΡΙΑ ΔΙΑΜΕΣΑ","EPIRUS, UNALTERED PHOSPHATE ROCK, BENEFICIATION","UNALTERED PHOSPHATE ROCK, FLOTATION","UNALTERED PHOSPHATE ROCK, GRAVITY CONCENTRATION","Επιστήμες Μηχανικού και Τεχνολογία","Περιβαλλοντική Μηχανική","Engineering and Technology","Environmental Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1189","http://hdl.handle.net/10442/hedi/1189"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE POSSIBILITY OF BENEFICIATION OF THE UNALTERED LOW-GRADE PHOSPHATE ROCK OF EPIROUS (GREECE) WAS INVESTIGATED FOR ECONOMIC EXPLOITATION OF THE ROCK. THE MINERALOGICAL EXAMINATION OF THE ROCK AND THE PRELIMINARY TESTS FOR ITS BENEFICIATION (SIEVE ANALYSIS, HEAVY LIQUID TESTS) WERE PERFORMED. BASED ON THE RESULTS FROM THE HEAVY LIQUID TESTS, AN ATTEMPT WAS MADE FOR THE PHOSPHATE ROCK TO BE CONCENTRATED BY GRAVITY METHODS (HEAVY MEDIA, SPIRAL CONCENTRATION, SHAKING TABLING). THE APPLICATION OF METHODS BASED ON THE PHYSICOCHEMICAL PROPERTIES OF THE MINERALS WERE ALSO INVESTIGATED (FLOTATION, SKIN FLOTATION). NEW METHODS OF BENEFICIATION (SELECTIVE MAGNETIC COATING) AS WELL AS METHODS APPLICABLE TO MINERALS WITH A VERY FINE SIZE OF LIBERATION (DISPERSION/SELECTIVE FLOCCULATION) WEREEXAMINED AT THE LAST PART OF THE RESEARCH.","ΜΕ ΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΜΕΛΕΤΩΝΤΑΙ ΟΙ ΔΥΝΑΤΟΤΗΤΕΣ ΕΜΠΛΟΥΤΙΣΙΜΟΤΗΤΑΣ ΤΩΝ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΩΝ ΦΩΣΦΟΡΟΥΧΩΝ ΠΕΤΡΩΜΑΤΩΝ ΤΗΣ ΗΠΕΙΡΟΥ ΜΕ ΣΚΟΠΟ ΤΗΝ ΟΙΚΟΝΟΜΙΚΗ ΑΞΙΟΠΟΙΗΣΗ ΤΟΥΣ. ΣΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΚΑΤ'ΑΡΧΗΝ ΓΙΝΕΤΑΙ ΟΡΥΚΤΟΛΟΓΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΠΕΤΡΩΜΑΤΟΣ ΚΑΙ ΕΠΕΙΤΑ Η ΠΡΟΚΑΤΑΡΚΤΙΚΗ ΜΕΛΕΤΗ ΕΜΠΛΟΥΤΙΣΙΜΟΤΗΤΑΣ (ΚΟΚΚΟΜΕΤΡΙΚΗ ΑΝΑΛΥΣΗ, ΒΑΡΙΑ ΥΓΡΑ). ΣΤΗ ΣΥΝΕΧΕΙΑ ΕΞΕΤΑΖΕΤΑΙ Η ΕΦΑΡΜΟΓΗ ΔΙΑΦΟΡΩΝ ΒΑΡΥΤΟΜΕΤΡΙΚΩΝ ΜΕΘΟΔΩΝ ΕΜΠΛΟΥΤΙΣΜΟΥ (ΒΑΡΙΑ ΔΙΑΜΕΣΑ, ΣΕ ΣΠΕΙΡΟΕΙΔΗ ΣΥΓΚΕΝΤΡΩΤΗ ΣΕ ΔΟΝΟΥΜΕΝΗ ΤΡΑΠΕΖΑ). ΕΠΕΙΤΑ ΔΙΕΡΕΥΝΑΤΑΙ Η ΔΥΝΑΤΟΤΗΤΑ ΕΦΑΡΜΟΓΗΣ ΔΙΑΦΟΡΩΝ ΜΕΘΟΔΩΝ ΠΟΥ ΒΑΣΙΖΟΝΤΑΙ ΣΤΙΣ ΦΥΣΙΚΟΧΗΜΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΤΩΝ ΟΡΥΚΤΩΝ (ΕΠΙΠΛΕΥΣΗ, ΕΠΙΠΛΕΥΣΗ ΜΕΜΒΡΑΝΗΣ). ΤΕΛΟΣ, ΓΙΝΕΤΑΙ ΔΙΕΡΕΥΝΗΣΗ ΕΦΑΡΜΟΓΗΣ ΝΕΩΝ ΜΕΘΟΔΩΝ (ΕΚΛΕΚΤΙΚΗ ΜΑΓΝΗΤΙΚΗ ΕΠΙΚΑΛΥΨΗ) 'Η ΜΕΘΟΔΩΝ ΠΟΥ ΕΦΑΡΜΟΖΟΝΤΑΙ ΣΕ ΠΕΤΡΩΜΑΤΑ 'Η ΜΕΤΑΛΛΕΥΜΑΤΑ ΜΕ ΠΛΗΡΗ ΑΠΟΔΕΣΜΕΥΣΗ ΟΡΥΚΤΩΝ ΣΕ ΠΟΛΥ ΜΙΚΡΟ ΜΕΓΕΘΟΣ (ΔΙΑΣΠΟΡΑ /ΕΚΛΕΚΤΙΚΗ ΚΡΟΚΙΔΩΣΗ)."]},{"key":"dc:title","label":"Title","values":["ΣΥΜΒΟΛΗ ΣΤΟΝ ΕΜΠΛΟΥΤΙΣΜΟ ΤΟΥ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΥ ΦΩΣΦΟΡΙΤΗ ΗΠΕΙΡΟΥ"]}]}],"canonical_facts":{"dc:creator":["Αναστασάκης, Γεώργιος","Anastasakis, Georgios"],"dc:date":["1989"],"dc:description":["THE POSSIBILITY OF BENEFICIATION OF THE UNALTERED LOW-GRADE PHOSPHATE ROCK OF EPIROUS (GREECE) WAS INVESTIGATED FOR ECONOMIC EXPLOITATION OF THE ROCK. THE MINERALOGICAL EXAMINATION OF THE ROCK AND THE PRELIMINARY TESTS FOR ITS BENEFICIATION (SIEVE ANALYSIS, HEAVY LIQUID TESTS) WERE PERFORMED. BASED ON THE RESULTS FROM THE HEAVY LIQUID TESTS, AN ATTEMPT WAS MADE FOR THE PHOSPHATE ROCK TO BE CONCENTRATED BY GRAVITY METHODS (HEAVY MEDIA, SPIRAL CONCENTRATION, SHAKING TABLING). THE APPLICATION OF METHODS BASED ON THE PHYSICOCHEMICAL PROPERTIES OF THE MINERALS WERE ALSO INVESTIGATED (FLOTATION, SKIN FLOTATION). NEW METHODS OF BENEFICIATION (SELECTIVE MAGNETIC COATING) AS WELL AS METHODS APPLICABLE TO MINERALS WITH A VERY FINE SIZE OF LIBERATION (DISPERSION/SELECTIVE FLOCCULATION) WEREEXAMINED AT THE LAST PART OF THE RESEARCH.","ΜΕ ΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΜΕΛΕΤΩΝΤΑΙ ΟΙ ΔΥΝΑΤΟΤΗΤΕΣ ΕΜΠΛΟΥΤΙΣΙΜΟΤΗΤΑΣ ΤΩΝ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΩΝ ΦΩΣΦΟΡΟΥΧΩΝ ΠΕΤΡΩΜΑΤΩΝ ΤΗΣ ΗΠΕΙΡΟΥ ΜΕ ΣΚΟΠΟ ΤΗΝ ΟΙΚΟΝΟΜΙΚΗ ΑΞΙΟΠΟΙΗΣΗ ΤΟΥΣ. ΣΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΚΑΤ'ΑΡΧΗΝ ΓΙΝΕΤΑΙ ΟΡΥΚΤΟΛΟΓΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΠΕΤΡΩΜΑΤΟΣ ΚΑΙ ΕΠΕΙΤΑ Η ΠΡΟΚΑΤΑΡΚΤΙΚΗ ΜΕΛΕΤΗ ΕΜΠΛΟΥΤΙΣΙΜΟΤΗΤΑΣ (ΚΟΚΚΟΜΕΤΡΙΚΗ ΑΝΑΛΥΣΗ, ΒΑΡΙΑ ΥΓΡΑ). ΣΤΗ ΣΥΝΕΧΕΙΑ ΕΞΕΤΑΖΕΤΑΙ Η ΕΦΑΡΜΟΓΗ ΔΙΑΦΟΡΩΝ ΒΑΡΥΤΟΜΕΤΡΙΚΩΝ ΜΕΘΟΔΩΝ ΕΜΠΛΟΥΤΙΣΜΟΥ (ΒΑΡΙΑ ΔΙΑΜΕΣΑ, ΣΕ ΣΠΕΙΡΟΕΙΔΗ ΣΥΓΚΕΝΤΡΩΤΗ ΣΕ ΔΟΝΟΥΜΕΝΗ ΤΡΑΠΕΖΑ). ΕΠΕΙΤΑ ΔΙΕΡΕΥΝΑΤΑΙ Η ΔΥΝΑΤΟΤΗΤΑ ΕΦΑΡΜΟΓΗΣ ΔΙΑΦΟΡΩΝ ΜΕΘΟΔΩΝ ΠΟΥ ΒΑΣΙΖΟΝΤΑΙ ΣΤΙΣ ΦΥΣΙΚΟΧΗΜΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΤΩΝ ΟΡΥΚΤΩΝ (ΕΠΙΠΛΕΥΣΗ, ΕΠΙΠΛΕΥΣΗ ΜΕΜΒΡΑΝΗΣ). ΤΕΛΟΣ, ΓΙΝΕΤΑΙ ΔΙΕΡΕΥΝΗΣΗ ΕΦΑΡΜΟΓΗΣ ΝΕΩΝ ΜΕΘΟΔΩΝ (ΕΚΛΕΚΤΙΚΗ ΜΑΓΝΗΤΙΚΗ ΕΠΙΚΑΛΥΨΗ) 'Η ΜΕΘΟΔΩΝ ΠΟΥ ΕΦΑΡΜΟΖΟΝΤΑΙ ΣΕ ΠΕΤΡΩΜΑΤΑ 'Η ΜΕΤΑΛΛΕΥΜΑΤΑ ΜΕ ΠΛΗΡΗ ΑΠΟΔΕΣΜΕΥΣΗ ΟΡΥΚΤΩΝ ΣΕ ΠΟΛΥ ΜΙΚΡΟ ΜΕΓΕΘΟΣ (ΔΙΑΣΠΟΡΑ /ΕΚΛΕΚΤΙΚΗ ΚΡΟΚΙΔΩΣΗ)."],"dc:identifier":["10.12681/eadd/1189","http://hdl.handle.net/10442/hedi/1189"],"dc:language":["gre"],"dc:publisher":["National Technical University of Athens (NTUA)","Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)"],"dc:subject":["Εμπλουτισμός","ΗΠΕΙΡΟΣ, ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΚΛΕΚΤΙΚΗ ΚΡΟΚΙΔΩΣ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ, ΕΠΙΠΛΕΥΣΗ","ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΣ ΦΩΣΦΟΡΙΤΗΣ,ΒΑΡΙΑ ΔΙΑΜΕΣΑ","EPIRUS, UNALTERED PHOSPHATE ROCK, BENEFICIATION","UNALTERED PHOSPHATE ROCK, FLOTATION","UNALTERED PHOSPHATE ROCK, GRAVITY CONCENTRATION","Επιστήμες Μηχανικού και Τεχνολογία","Περιβαλλοντική Μηχανική","Engineering and Technology","Environmental Engineering"],"dc:title":["ΣΥΜΒΟΛΗ ΣΤΟΝ ΕΜΠΛΟΥΤΙΣΜΟ ΤΟΥ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΥ ΦΩΣΦΟΡΙΤΗ ΗΠΕΙΡΟΥ"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:46Z"}