Froth flotation is perhaps the most widely used method for mineral separation and concentration. Feeding of collectors and regulators is necessary for transferring the maximum quantity of minerals to the froth. The importance of pH level during the process for mineral quality, process yield and chemical efficiency is well recognized. What is less well known is the relevance of the zeta potential of the pulp. The zeta potential affects suspension stability; too low and flocculation occurs leading to poor selectivity in flotation, too high and the suspension remains stable.

Froth flotation is perhaps the most widely used method for mineral separation and concentration. Feeding of collectors and regulators is necessary for transferring the maximum quantity of minerals to the froth. The importance of pH level during the process for mineral quality, process yield and chemical efficiency is well recognized. What is less well known is the relevance of the zeta potential of the pulp. The zeta potential affects suspension stability; too low and flocculation occurs leading to poor selectivity in flotation, too high and the suspension remains stable. As the zeta potential is affected by the pulp pH level, this is a further reason why pH control is crucial for successful flotation operations.

A white paper examines the role of pH and the importance of the zeta potential in froth flotation, and describes an "intelligent" pH measurement system that predicts its own maintenance.

For more info: http://www.mt.com/global/en/home/supportive_content/specials.Zeta-pH-froth.twoColEd.html?crel=ePR_PP_EN

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Mettler-Toledo International Inc.
Im Langacher,  Zip Code 8606,
Greifensee, Switzerland.
E-Mail : ePublicRelations@mt.com,
Phone : +41-44-944 33 85,
Website : www.mt.com

About Mettler Toledo:
METTLER TOLEDO specializes in the area of precision instruments for professional use. METTLER TOLEDO laboratory instruments are used in research, scientific, drug discovery, and quality control labs, amongst many others in the pharmaceutical, chemical, food and cosmetics industries. METTLER TOLEDO comprehensive industrial solutions cover the various steps in a host of manufacturing processes at many of the same customers that laboratory serves. Solutions range from receiving raw materials through various manufacturing processes, in-line process control and end-of-line packaging control, to logistics and shipping. Increasingly, these solutions are fully integrated into the customer's IT environment, helping automate their workflows. In food retail, our offering for fresh food management ranges from receiving and pre-packaging, to in-store solutions for self-service departments, deli counters, and checkout terminals.