Abstract

This invention relates to a separating apparatus and a separation method for quantitative separation of molten collector material and a molten slag during a process of assaying mineral ore samples to determine the concentration of selected metals, particularly of gold and platinum group metals, in such samples. The separating apparatus comprises a separating vessel for receiving a fusion of collector material and slag; a collector mould disposed below the separating vessel for receiving the collector material; and a movable gate disposed intermediate the separating vessel and the collector mould for controlling the flow of molten material from the separating vessel into the collector mould. The separating apparatus defines a closed flow path between the separating vessel and the collector mould such that the collector material is not exposed to atmospheric air during casting.

IPC Classes  ?

• C22B 1/00 - Preliminary treatment of ores or scrap
• C22B 9/02 - Refining by liquating, filtering, centrifuging, distilling or supersonic wave action
• C22B 11/02 - Obtaining noble metals by dry processes
• G01N 33/20 - Metals
• G01N 33/24 - Earth materials
• G01N 25/00 - Investigating or analysing materials by the use of thermal means
• B22D 41/24 - Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
• B22D 43/00 - Mechanical cleaning, e.g. skimming of molten metals