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Development of a Method for Granulation of Ferromanganese Alloys

Granulation of ferroalloys is an alternative to bed-casting and crushing which has been the traditional method for solidification. The granulated product has many advantages having high yield, homogeneous composition and ideal size and shape for addition into metallurgical processes. The GRANSHOT® granulation process is today used as a standard operation for many ferroalloy producers. Development work for granulation of ferromanganese utilizing the GRANSHOT metal granulation process has been carried out in-house in UHT’s pilot granulation facility. The work consists of both small-scale tests and pilot granulations. Impact on product chemistry, physical properties and mechanical strength have been studied in combination with microscopy studies of the granulated product. This paper presents the results of the studies.