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Celite Diatomaceous Earth Filter Aids
Among the commonly used filter aids, diatomaceous earth is especially versatile and efficient. These fossilized skeletons of diatoms (single-celled algae) also known as kieselguhr offer benefits such as chemical inertness, a large surface area of up to 20 m² per gram and highest possible purity. The most important manufacturer of diatomaceous earth filter aids with the largest and purest deposits of diatomaceous earth in the world is the Celite Corp. in Lompoc, California. Other Celite deposits are located in the US state of Washington as well as in France, Spain, Mexico, Chile and China. Celite diatomaceous earth filter aids are prepared from especially high-grade diatomaceous earth deposits.
The selection of a suitable Celite filter aid depends on which liquid is to be filtered and what requirements are placed on the result of the filtration process. Diatomaceous earth filter aids permit optimum clarification even for slimy colloidal turbidities smaller than 0.1 µ. In these applications they achieve highest possible throughputs while ensuring maximum purity and chemical inertness. The product to be filtered does not undergo any deterioration in terms of taste, odour or chemical composition, which, especially in the case of beer or fruit juice, is a crucial factor. The constant quality of the Celite filter aids ensures this.
Only if the right filter aid is correctly used it will guarantee all the benefits of this filtration method. Our applications technicians will support you in selecting the products and operating settings that best match the conditions of your plant.
Apart from those listed above, further filter aids are available for special applications such as USP/NF and ultra pure filter aids for the biopharmaceutical and pharmaceutical industry as well as for special applications in the chemical and food industries.
Our experience will also help you to produce better products more cost-effectively.
In addition to the numerous applications available in filtration, diatomaceous earth is also a starting material for other Celite specialities such as: functional fillers, absorptive silicates, substrates for chromatographic work, catalyst carriers.