The principle is as follows: the perlite ore is crushed to form a certain size of ore. Thermal calcination, rapid heating (above 1000 °C), water vaporization in ore, expansion in softened vitreous ore containing sand, forming a porous structure, volume expansion 10-30 times of non-metallic mineral products. Main characteristics of expanded perlite

We produce any sort of perlite. We had started to produce ore, raw, unexpanded and expanded perlite in our own facilities at 1990 in Turkiye. Our annual capacity of perlite production is more than 100 000 tons. With our experienced and educated personnel and modern facilities, quality philosophy in production is adopted as customer satisfaction ...

Crude perlite ore is mined, crushed, dried in a rotary dryer, ground, screened, and shipped to expansion plants. Horizontal rotary or vertical stationary expansion furnaces are used to expand the processed perlite ore. The normal size of crude perlite expanded for use in plaster aggregates ranges from plus

Founded in 1990 as a family company PMC Mining, Engineering and Machinery Industry Co. develops and manufactures various equipment for the use of perlite expansion and mineral milling and grinding with the brand PMC Perlite, offering 35 years of experience in the field of perlite processing.. PMC Company believes that the art and technology behind the expansion of perlite and grinding of ...

The expansion and insulating properties of perlite ore make it suitable for use in high-temperature applications, particularly in the steel and foundry industries. Ladle Topping Expanded or unexpanded granular ore forms of perlite are added to molten metal …

QUALITY ORE RESERVES. Imerys owns and operates perlite mines in Greece, Sardinia, Turkey, the USA (New Mexico, Arizona and Utah), Argentina, and Chile which feed our many perlite expansion facilities scattered across the globe. Imerys is one of the rare perlite producers able to control the quality chain from mine to finished product.

In 2013, the Group launched its 3rd perlite expansion facility, Ore Perlite Industry Trade Co. Ltd, in Antalya. This facility was established for supplying expanded perlite especially to the agricultural sector. The new subsidiary company GPM Foreign Industry Trade Co. Ltd joined Genper Group in 2014.

Crude perlite ore is mined, crushed, dried in a rotary dryer, ground, screened, and shipped to expansion plants. Horizontal rotary or vertical stationary expansion furnaces are used to expand the processed perlite ore. The normal size of crude perlite expanded for use in plaster aggregates ranges from plus

The mining of perlite ore takes place in open-pit mines located in volcanic areas in different regions of the world. The ore is milled and sifted in different sizes so that it can be transformed later.. The processed ore is calcined at 1000°C which causes the water molecules inside to evaporate, exploding and expanding up to 20 times its original volume, producing the expanded perlite.

The expansion process normally takes place at when the perlite ore is rapidly heated to approximately 800-850˚C. For an ideal process, a combined water in raw perlite of 2.77-3.25% would be targeted. The resultant popped or expanded perlite, which is like a glass bubble, has extremely good insulating properties and is light weight.

The Expansion Process. Perlite ore is a glassy volcanic rock with a vitreous, pearly luster and a characteristic concentric or perlitic fracture. Closely related to pumice, it differs from other volcanic glasses principally in its combined water content, which produces the unusual characteristic of "popping"—expanding up to 20 times its ...

Perlite softens when it reaches temperatures of 850–900 °C (1,560–1,650 °F). Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume. The expanded material is a brilliant …

Microwave Energy for Expanding Perlite Ore, J. A. Aguilar‐Garib et al. / 823‐830 Vol. 11,826 December 2013 After confirming the effectiveness of the graphite as susceptor of microwaves, it is necessary to find the optimal arrangement in terms of perlite expansion. Three arrangements with 2 g of

Bulk handling of expanded perlite and expansion of perlite at the job site are two methods of delivering expanded perlite to the customer without the use of bags. A . d v antages a ) Advantages as compared with bags ... wasted ore. Any surplus ore left over from a …