PROBLEMS OF PROCESSING DIAMOND-BEARING SANDS AT PLACER DEPOSITS IN NORTH-WESTERN YAKUTIA IN TERMS OF ANABAR DIAMONDS OPERATIONS

Anabar Diamonds operates a number of mining projects at diamond placers in the north-west of the Republic of Sakha (Yakutia). A key part in the production process belongs to processing of diamond-bearing sands. The article describes the milestones of advancement in the customary processing technology at Anabar Diamonds, starting from jiggers to modern sorting and concentrating equipment. Engineering of sorting plants became possible owing to application of X-ray fluorescent separation for coarse particles and float-and-sink process for the basic size product. Furthermore, the Company produces gold and platinum from sorting rejects using washing machines with gateways of fine filling. Mobile plants enable accumulating operations of concentrate processing at a single point and, thereby, creating high-capacity refinement factories. The feasibility of improving efficiency both of processing and refinement of concentrates is demonstrated. The experience gained in meeting challenges arising in the course of mining allows new efficient engineering solutions in the field of diamond-bearing sand processing, which improves financial capacity of the Company.

Keywords

Placers, mineral processing, sorting plant, diamonds, gold, separation.

Issue number: 12
Year: 2018
ISBN:
UDK: 622.7: 622.371 (571.56)
DOI: 10.25018/0236-1493-2018-12-0-185-191
Authors: Merkuryev A.N., Matveev A.I.

About authors: Merkuryev A.N., Chief Concentrator, e-mail: merkuryevan@alanab.ru, JSC «Almazy Anabara», 677027, Yakutsk, Republic of Sakha (Yakutia), Russia, Matveev A.I., Doctor of Technical Sciences, Head of Laboratory, e-mail: andrei.mati@yandex.ru, Chersky Mining Institute of the North, Siberian Branch, Russian Academy of Sciences, 677018, Yakutsk, Republic of Sakha (Yakutia), Russia

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