METHOD OF RECOVERING VALUABLE METAL FROM PRINTED CIRCUIT BOARD SCRAP

To provide a method of recovering valuable metal from printed circuit board scrap that can improve the recovery rate of valuable metal from the printed circuit board scrap and its quality.SOLUTION: The method has a first step for crushing printed circuit board scrap with an impact crusher (10A, 10B)...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KIDERA ATSUYUKI, MORIAKI HIDEYUKI, NOMURA KAZUHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL DISPOSAL OF SOLID WASTE FERROUS OR NON-FERROUS ALLOYS METALLURGY MILLING GRAIN OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL SEPARATING SOLIDS FROM SOLIDS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a method of recovering valuable metal from printed circuit board scrap that can improve the recovery rate of valuable metal from the printed circuit board scrap and its quality.SOLUTION: The method has a first step for crushing printed circuit board scrap with an impact crusher (10A, 10B) by one stage or two stages, a second step for crushing the crushed matter that is obtained by crushing the printed circuit board scrap, with a final crusher (10C), and a third step for separating the powder matter that results from crushing with the final crusher, with a pneumatic separator (70), into powder matter mainly composed of valuable metal, and other parts, to recover the valuable metal from the powder matter. The first, second and third steps are continuously performed.SELECTED DRAWING: Figure 3 【課題】プリント基板屑からの有価金属の回収率及び品位を向上させることが可能なプリント基板屑からの有価金属の回収方法を提供する。【解決手段】プリント基板屑を衝撃式粉砕機（１０Ａ、１０Ｂ）により１段階又は２段階で粉砕する第１工程と、前記プリント基板屑を粉砕した後の粉砕物を最終粉砕機（１０Ｃ）により粉砕する第２工程と、前記最終粉砕機により粉砕され生成された粉体物を、風力選別機（７０）により有価金属を主成分とする粉状物とそれ以外とに分離し、前記粉体物から有価金属を回収する第３工程と、を含み、前記第１工程、前記第２工程及び前記第３工程が、連続的に実施されるようになっている。【選択図】図３