Monday, 28 May 2018

Physical Separation '19 and Computational Modelling '19 are back in Cornwall

In the posting of 18th May I spoke about the "Renaissance in Cornish Mining". It is all happening here now, and because of that, we decided to bring Physical Separation '19 and Computational Modelling '19 back to Falmouth next June. Originally they had been scheduled to take place in Cape Town. Dave Goldburn, the Business Development Manager at Cornish company Holman-Wilfley, world recognised manufacturer and supplier of Holman and Wilfley gravity separation tables, immediately tweeted: "I personally think that is the right decision! #physicalseparation19 being held in the historical home of physical separation!"
And we have a brand new venue for the two conferences, Falmouth's Maritime Museum, in the heart of old Falmouth and its wonderful restaurant area.
Maritime Museum (photo Bob Berry)
Although chemical methods of concentration and extraction dominate the industry, the physical separation methods are ubiquitous. Whether it be gravity concentration, classification or dewatering, the principles of separation are essentially the same, and there is no mining operation in the world which does not make use of the density differences between solids and liquids somewhere in the flowsheet. Magnetic and electrical methods also have important roles to play when methods such as flotation fail.
With the need to reduce energy and water consumption, sensor based automatic ore sorting is becoming increasingly important in comminution circuits, in order to remove waste and sub-marginal grade material and produce a coarse upgraded preconcentrate early in the flowsheet, and reduce the volume of final tailings.
MEI's 5th Physical Separation conference will therefore bring together researchers and operators who have common interests in:
•Gravity concentration methods - single and multi-G separators and dense medium separation
•Classification techniques - hydrocyclones, air classifiers etc.
•Solid-Liquid Separation - thickeners, clarifiers etc.
•Electronic Sorting
•Magnetic and electrostatic separation
•Microwave technology. There are many aspects of mineral processing where the use of microwaves has potential and papers dealing with the enhancement of physical processes by microwaves are encouraged.
Computational Modelling is MEI's most specialised conference, and Computational Modelling '19, which immediately precedes Physical Separation '19, will be the 7th in the series, and is aimed at the full spectrum of people involved in computational modelling in minerals processing and materials handling, from model development, validation and all the way through to application. The specific areas include:
•Model development and computational techniques
•Modelling of minerals processing and materials handling unit operations
•Optimisation of plant and circuit operation and design
•Experimental validation including novel experimental techniques.
International Mining is a media partner for both conferences, and CEEC is an industry advocate for Physical Separation '19. The latest updates can be found at #PhysicalSeparation19 and #ComputationalModelling19.
Physical Separation '17 delegates by the River Fal estuary
Twitter @barrywills


  1. Hi,
    Why is there no flotation? Flotation is a physical methods of the separation of minerals also.
    Ph.D. Natalia Petrovskaya

    1. Physical Separation '19 deals with processes such as gravity and magnetic separation which are purely physical. Flotation is a physico-chemical process and MEI has a very successful series of conferences dealing solely with froth flotation. The next one is Flotation '19 in November next year.

    2. It's a delusion.
      Flotation is a physical process.
      Film flotation. Where is the chemistry?
      Vacuum flotation. Where is the chemistry?
      Oil flotation. Where is the chemistry?

      And so on.
      Dissolution of minerals is a physicochemical process.

      Ph.D. Natalia Petrovskaya

  2. Definitely excited to see the outcome of physical separation '19. Love learning about these separation processes and the new developments within the industry. Particularly excited to see if there are any new developments in the magnetic separation field.

  3. Flotation is a physical methods of the separation of minerals

    The drawings show the film flotation of gold and the flotation of chocolate (DAF).
    Where is the chemistry? There is no chemistry.
    Watch the video "flotation of grapes in champagne".
    Where is the chemistry?

    Some people have an outdated opinion. They make mistakes.

    MEI Blog (Dr. Barry Wills) wrote: "Physical Separation '19 and Computational Modelling '19 are back in Cornwall". They did not agree with my opinion.

    What do you think about this?

    1. Tell this to the many chemical companies, flotation chemistry researchers etc who attend MEI's flotation conferences.

    2. I think that chemical companies will not take offense at me. The essence of the process does not matter to them. For them, the most important thing is "to sell more and more expensive.


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