Metallurgical Laboratory Testing

Mineral Processing Pilot Plant Equipment

The testing of tonnage lots of ores and industrial materials by continuous Mineral Processing Pilot Plant operation is in many instances advisable before a full scale milling plant is installed. The treatment of complex ores by new processes or by the use of new or unusual reagents in flotation may involve problems the effect of which should be studied under small scale continuous operating conditions.

The milling of ores by fine grinding and flotation requires the establishment of closed circuits where middling or unfinished products are returned to various points in the flowsheet for additional treatment. Where unusual flotation reagents are used, or when an intricate flowsheet is required, the effect on the operation is not satisfactorily determined from batch laboratory tests.

Commercial operation of the cyanidation process for the treatment of gold and silver ores involves the continuous re-use of much of the cyanide solution after removal of the dissolved gold or silver by precipitation. This introduces the problem of the dissolution of undesirable base metal salts especially when complex or partially oxidized ores are treated. These salts may build up in the solution and act as cyanicides to affect the rate of dissolution of the gold or silver by cyanide ….Read more

Metallurgical Laboratory Equipment & Test Methods

The Mineral Industries have for many years recognized the importance of small-scale ore dressing tests for determining the amenability of ores to various methods of concentration. The successful development of the flotation process, which was accomplished with the aid of small-scale laboratory machines, gave a decided impetus to the laboratory testing of ores. Today the small-scale testing of ores is recognized as necessarily the first step in the development of a successful ore treating plant.

Why Laboratory Metallurgical Testing

Ore testing laboratory installations are usually planned with a view of making not only a critical study of every individual ore tested but also of each step in the process which is evolved for the individual ore treatment. Such a study should establish the most desirable method of treatment and give all necessary data upon which selection of equipment could be based.Metallurgical Laboratory Equipment

The methods used in any testing laboratory should be designed to duplicate as closely as possible the actual conditions in every step of the process under which the ore will be treated in the regular milling operation. Such a requirement makes it vital that the greatest possible amount ….Read more

Laboratory Flotation Testing

Batch Laboratory Flotation Testing starts from the 3 fundamental types of flotation processes or methods which can be classed as either:

  1. Bulk flotation
  2. Differential flotation
  3. Sequential flotation

While all flotation processes are selective or differential in that one mineral or group of minerals is floated away from accompanying gangue, bulk flotation generally refers to separation of unlike mineral types such as sulfides from non-sulfides. Differential flotation (exemplified, for instance, by the concentration and subsequent successive removal of Cu, Pb, Zn and Fe sulfides from a single ore) on the other hand, is restricted to operations
involving separation of similar mineral types.

Batch Froth flotation Testing is a means of treating a pulp of finely ground ore so that it yields the valuable or desired mineral in a concentrate that will be amenable to further processing. The process involves the imparting of a water repellent (hydrophobic) character to the wanted mineral particles by chemicals that are called collectors or promoters. Under favorable conditions, these chemically coated particles become attached to the air that is bubbled through the pulp, and will thus “float” on the surface.Laboratory Flotation Testing

If the surface tension of the pulp is then reduced by ….Read more

Mineral Processing Laboratories

Finding a good and the right mineral processing laboratory and have your testing filled properly is important. Most metallurgical laboratories now are actually specialized. They will claim to “do-it-all” while what they can actually do truly depends on who their current staff is.  You have hear the cliché on people are our greatest asset?  Well, it is too true here.

Do you need:

  • Ore hardness testing
  • Heap Leaching
  • Gravity testing
  • Flotation
  • CIL, CIP or other Gold Leaching
  • Mineralogy
  • Refractory testing
  • Pilot Plant
  • Industrial Plant diagnostic
  • Hydrometallurgy
  • Testwork Management

Geography might influence your choice. It may be important for you to by ‘close’ to your lab. Starting from your specific testing requirement, you can properly choose the mineral processing laboratory.Reviews of mineral processing laboratory

InfoMine offers a messy mining directory I find somewhat useless.

The typical go-to or major names are:

Large International Laboratory names with presence in Canada:

  • ALS Global
  • SGS “Lakefield”
  • Inspectorate / Bureau Veritas
  • XPS Consulting & Testwork Services

Mid-Size in Canada:

  • Blue Coast Group
  • Met-Solve Labs
  • COREM in Quebec

Small Boutique Laboratory in Canada:

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