文档介绍：Journal of Industrial and Engineering Chemistry 15 (2009) 196–201
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Journal of Industrial and Engineering Chemistry
journal homepage: ate/jiec
Modeling and simulation of separation process in flotation system
Byoung-Uk Cho, Jeong-Yong Ryu *, Bong-Keun Song
Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 305-600, Republic of Korea
ARTICLE INFO ABSTRACT
Article history: In order to design a flotation circuit to remove ink and contaminants from slushed old corrugated
Received 12 May 2008 container (OCC) pulp suspension, a model based on mass balance was developed. The model is a five
Accepted 28 August 2008 fractional model, which handles mass flow rate of ink, fiber, fines, filler and dichloromethane (DCM)
extractives. A detailed method of calculating the deinking selectivity of a material from experimental
Keywords: data, described in terms of reject ratio, is presented. Three flotation deinking systems were simulated. In
Flotation deinking a single stage flotation system, increasing the number of flotation cells improved cleanness of the accept
Multistage flotation pulp suspension while it decreased yield at the same time. Yield can be increased by adding a second
Reject ratio
stage and by introducing the accept flow of the second stage into the feed flow of the first stage.