TECOLITE MINERALS Hall 8 / B56

TECOLITE MINERALS is the manufacturer and supplier of Perlite Filter Aid.

TECOLITE Perlite filter aids provide users with a lightweight material choice. Perlite filter aid grades provide the user with a density advantage from 20 to 50% over other types of filter aids.

Perlite filter aid dry density ranges from 80 to 200 kg/m3 and the filter cake density range is 100 to 260 kg/m3. In contrast, other filtration materials produce equal performance filter cakes in the range of 230 to 420 kg/ m3 Expanded perlite provides larger volumes with low bulk density compared to other filter aids.

Experience in a variety of applications has shown that most filter aid users can economically switch to perlite from other pre-coat filter aids without sacrificing performance.

TECOLITE Perlite filter aids can be used with either pressure or vacuum filtration equipment. Perlite generally replaces other filter aids on a one-to-one volume basis - for example; a cubic measure of perlite will replace the same volume of other filter aids. Selection of the optimum grade and dosage may require plant or laboratory filtration tests.

TECOLITE Perlite filter aid grades from various manufacturers range from 0.1 – 10 Darcies. (The Darcy is a common unit of flow rate for filter aids.)

A material with a permeability of one Darcy passes 1 milliliter per second per square centimeter of a liquid of 1 centipoise viscosity (approximately that of water) through a cake 1 centimeter thick at a differential pressure of 1 atmosphere.

The higher flow grades are especially applicable to use with highly viscous liquids such as syrup, resins or gelatinous slurries. Productivity, clarity and flow rates may be increased through the use of perlite filter aid grades. These traits are accomplished during the liquid’s path through the channels created by the jagged, interlocking particles.

Additional benefits of TECOLITE perlite filter aids come at the end of the filter cycle. Perlite filter cakes remain porous and do not compact. Filter cakes built up under pressure release easier when perlite is used. This release facilitates cleaning, potentially reduces manpower requirements, and increases productivity.

The lower weight of perlite filter cakes may also reduce disposal costs.

TECOLITE perlite filter aids are sterile and inert and are widely used for filtering liquids in the beverage, food and pharmaceutical industries. They do not impart taste, odour or colour and contains less than .1% silica (almost none). Contact us for more details about our Perlite grades.