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The core of membrane technology is membranes. In general, the chemical properties and structure of the membrane have a decisive influence on the properties of the membrane separation. Therefore, it is required that the membrane material should have good film forming properties, chemical stability, resistance to acids, alkalis, oxides, and microorganisms.…
Posted on June 24, 2019
Pigment processing typically involves a chemical reaction to precipitate the metal oxides from suspensions of solvent . The resulting precipitate should be separated from the suspension in a solid / liquid separation . The filter cake is actually the product and this cake is typically washed to remove all traces of solvent mother waters. The […]…
Posted on June 17, 2019
Manufacturing and packaging within the Pharmaceutical industry can generate a variety of types of nuisance dust. Depending on the type, there may be concerns with cross-contamination with other products, GMP issues or occupational exposure limits to active pharmaceutical ingredients for plant workers.Donaldson have a wide range of dust collectors well suited to the Pharmaceutical industry […]…
Posted on June 17, 2019
Thermal Spray Thermal Spray or Metalising is a group of coating processes which deposits finely divided metallic or non-metallic materials in a molten or semi-molten condition on a surface/substrate to form a coating. The coating material may start out in the form of a powder, ceramic rod, wires, or even molten materials. The process has […]…
Posted on June 17, 2019
It is important in the process of chemical pulping indicates that the caustic used to dissolve the cellulose can be recovered due to environmental and economic considerations . If you use a plant pressure vessels for recausticization , they will need to effectively monitor water clarity comes from the units. This can be achieved by […]…
Posted on June 17, 2019
GRINDING Grinding operations employ abrasive grains in various forms for the removal of material and metal to produce of different types of surface finishes. Abrasive grains held together with a hard, durable bonding material make grinding wheels, abrasive stones, and sticks. Abrasives can also be applied on fibrous sheets, paper, or cloth with the principle materials being […]…
Posted on June 17, 2019
PROCESSES INVOLVING GRAIN DUST Most grain dust is created by material handling processes, which include: Dump pits Break milling Sifters / Sorters / Classifiers Elevator legs Bin / Silo loading Roller milling Conveyors Packaging Barge / Rail car / Truck loading Garner scales Drying Mixing bin venting Grain cleaners   Hammer milling  …
Posted on June 17, 2019
Introduction Mining processes vary widely depending on the material to be extracted , such as iron , copper and gold , and the nature of the deposit . These processes include conventional milling , grinding , and casting processes and leaching processes and extraction . All the above methods require significant amounts of process water […]…
Posted on June 17, 2019
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