Kaolin Clay Manufacturers




Kaolin clay is amongst one of the natural minerals that are found in the deep layers of the earth and is available only in the selected locations across the globe. Kaolin clay manufacturers often have to deep dig inside the earth’s crust so as to find a kaolin reserve. Also, they need to invest good amount of money for the processing as well as for the treatment plant and machinery for getting the final ready-to-use industrial kaolin.

Most of the readers would be wandering so as to what the process the miners follow so as to extract kaolin from the rocky ores. In this write-up, you’ll be getting answers to all your questions regarding extraction of kaolin. So, just spare some time and go on for gaining some knowledge!

The kaolin clay that is processed differs from one company to the other. This is because every kaolin clay manufacturer uses some of the different equipments and processes for deriving the kaolin. And of course, the variety and the form of kaolin generated after the processing differs from one to the other. And even if the manufacturing units happen to use same processing processes, then too they won’t be able to succeed in the same manner.

For instance, here we’re talking about paper industry. Paper industry need to consume large chunks of kaolin so as to produce paper. Thus, here taking paper industry as the example, we’re going to explain you the process that is undertaken for processing kaolin clay for the paper industry.

  • Bunging: This is the step where all the kaolin rocks are mixed with water. Also, a number of chemical dispersants are used so as to get slurry.
  • De-gritting: This step involves running of the slurry through pipelines towards the de-gritting machines so that heavier impurities are separated from the mixture.
  • Centrifuging: This is the step where the coarse kaolin particles are separated from the finer particles.
  • Brightness enhancement: For brightening the color of kaolin, a number of processes are used such as oxidation, flotation, oxidation, flocculation, magnetic separation, bleaching and more.
  • Delaminating: This step is used for the lightweight applications and this involves breaking of the kaolin particles into thin size platelets.
  • Filtering & Drying: This step involves using the large size rotary vacuum filters for separating the water from kaolin from the slurry. For this, gas fired spray dryers are used for evaporating and removing the residual moisture.