Genesis in Fire Rapidly heating perlite ore to temperatures of about 900°C (1,700°F) softens the volcanic glass causing entrapped water molecules in the rock to turn to steam and expand the particles like popcorn. The expanded particles that result are actually clusters of minute, lightweight, insulating, glass bubbles. Broken bubbles and surface openings on the particles provide for water and …
Perlite Filter Aid: Precoat for Baghouse Fabric Filters
Efficiency-boosting precoat protects against blinding and increases air flow A baghouse dust-collection structure or device uses tubes, envelopes, or cartridges to gather dirt, particulate matter, and dust from the off-gases stream of a manufacturing or processing plant. Particulates separation from the air steam is carried out by separation media or bags. As filtration proceeds, the filtrate is accumulated on the …
Perlite Molded Pipe and Block Insulation
Perlite molded insulating products offer excellent thermal insulation properties that are lightweight, easy to install, customizable, and resistant to fire, moisture, and chemicals. Perlite Molded Insulating Pipe and Block products are a type of thermal insulating material designed to provide superior insulation in a range of industrial applications. Made from expanded perlite—a form of naturally occurring volcanic glass that has …
Insulating Underground Pipe and Ducting With Perlite Insulating Concrete
Perlite concrete pipe insulation provides a seamless, lightweight, quality thermal insulation that is also fire, rot, and vermin proof. Lightweight perlite insulating concrete can play multiple roles in underground pipe and duct installations. In addition to providing quality thermal insulation, perlite concrete insulation can also serve as a supporting envelope. This latter advantage is of special importance when pipe or …
Perlite Filter Aid: Edible Oils Filtration
A series of effective filtration steps remove substances in crude fats and oils that impart undesirable flavor, color, and keep quality. Fats and oils are essential nutrients in both animal and human diets. Both are called triglycerides, composed of one unit of glycerol and three units of fatty acids. Fatty acids are the building blocks for the hormones needed to …
Perlite Lightweight Insulating Concrete Roofing
Sustainable and long-lasting thermal insulation with the strength and durability of concrete Perlite Lightweight Insulating Concrete is a mix of perlite lightweight construction aggregate (ASTM C 332, Type 1), cement (OPC, Type 1, ASTM C150), air entraining agent admixture (ASTM C260) and water. Perlite lightweight insulating concrete roof decks offer unique sustainable thermal insulation, ultra-lightweight, and fire-resistance while replacing plastic/ …
High Temperature Applications for Perlite in the Steel and Foundry Industries
The excellent insulating properties and loose-flow nature of perlite find wide application in the extreme-heat conditions of steel mills and foundries. What is Perlite? Perlite is not a trade name, but a generic term for naturally occurring siliceous volcanic rock. The distinguishing feature which sets perlite apart from other volcanic glasses is that when heated to a suitable point in …
Perlite: The Most Sustainable Insulation Solution for Buildings
Perlite is one of the most overlooked insulating materials, especially as it offers numerous advantages over other organic and inorganic insulation materials. In an era of growing concern for the impact that building materials and products have on the environment, the choice of which materials to use is increasingly informed by relative performance and sustainability metrics. An extensive review of …
Specifications Guide: Transit Mix Perlite Lightweight Concrete
This transit mixing information is presented as a guide to eliminate some of the questions that may arise in the field and to ensure successful construction with perlite concrete. The physical characteristics of expanded perlite lends itself to a variety of special purposes—including use as a constituent of lightweight concrete. For a detailed explanation of perlite expansion see info-sheet: Why …
Perlite Filter Aid: Extractive Metallurgy
Expanded perlite filter aid plays an essential role in the gold and silver mining process. Among the many valuable applications of expanded perlite, mineral processing, specifically for gold and silver extraction, is among the most important. In the most common extraction method, gold and silver are leached from the ore using cyanide solution then precipitated with zinc powder or adsorbed …
2023 Perlite Institute Annual Meeting
Join the Perlite Institute for an exciting and informative event where we will discuss the latest developments in our industry, network with professionals from around the world and explore the beautiful city of Athens! Click here for the meeting brochure. Registration is now closed. Please contact events@perlite.org with any questions. HOTEL INFORMATION Divani Apollon Palace & Thalasso 10 Agiou …
Perlite Filter Aids Explained
By definition, a filter aid is an agent consisting of solid particles that improves filtering efficiency by building up a porous, permeable and rigid lattice structure—the filter cake—that retains solid particles and also helps flow control. The septum, usually screen or cloth, serves principally as a support for the filter cake. The filter aid forms a porous layer on the …
Perlite Grow Bags
For commercial growers considering containerized growing methods, perlite grow bags are self contained, quickly installed, and ready for immediate use. Perlite grow bags are an easy-to-use, scalable, and cost effective solution for sustainable hydroponic crop production. They are very helpful for commercial farmers for scaling production, as perlite grow bags are easy to install and ready to use instantly. Additional …
Perlite Filter Aid: Beer Filtration
As filtration processes go, beer-making is demanding. Strict standards for clarity, flavor, purity, and bottle-to-bottle uniformity require a high-performance filter aid media. The filtration process is an important step to ensuring the quality of beer because it helps stabilize beer, and gives it a polished, clear appearance, while removing elements that might make it unpalatable. Depth filtration is widely applied …
2022 Perlite Institute Annual Meeting
Join the Perlite Institute in Nashville, Tennessee!
Perlite Concrete Blocks for LNG, LPG and Cryogenic Tank Base Insulation
This guide illustrates the use of expanded perlite to produce Perlite Concrete Blocks (PCBs). The physical characteristics of expanded perlite are ideal for use as a constituent of lightweight insulating concrete for making Perlite Concrete Blocks (PCBs). Perlite Concrete Blocks Perlite Concrete Blocks (PCBs) are engineered, lightweight, thermal insulating, reinforced, and waterproofed concrete blocks useful for, among other things, forming …
Perlite Filter Aid (PFA) for Vacuum & Pressure Filtration
Usage and Operation Principles Explained Filtration is the process of separating a suspended solid such as a precipitate from the liquid in which it is already suspended by straining it through a porous medium that can be penetrated easily by liquid. Industrial filtration methods are classified according to the driving force that is applied. Pressure and vacuum filtration techniques are …
Perlite Filter Aid and the Circular Economy
Closing the loop through spent perlite filter cake reuse Executive Summary The circular economy targets the elimination of waste and the continual use of resources. This realizes mutual benefits to producers, consumers and the planet as a whole. The use of expanded perlite as filter aid is a well-established application that inevitably results in the production of a considerable amount …
Perlite Filter Aid for Recreational Water Filtration
Fully natural and chemically inert, perlite is affordable and highly effective for removing contaminates from pool water. Filtration is one of the most widely applied techniques for the removal of insoluble contaminates from recreational pool water. Fully natural, lightweight and chemically inert, perlite filter aid offers a high performance, yet cost effective, method for the removal of microbes, bacteria, and …
Perlite for Golf Course Greens
Perlite offers a unique combination of outstanding physical properties and low cost relative to other alternatives, due to its manufacturing method and worldwide availability. Golf greens rank among the world’s most highly engineered landscapes. According to the United States Golf Association (USGA), golf greens must provide performance and pristine playing conditions while under almost continual use and with minimal maintenance. …
Perlite, the Safe and Fully Natural Material
A global overview of scientific research on the potential health effect of perlite Executive Summary For more than forty years, the perlite industry has been at the forefront of testing for health effects that may be associated with the production, processing and use of raw and expanded perlite. Initially, much of the industry research effort was sponsored by the Perlite …
2021 Perlite Institute Virtual Annual Meeting
The meeting is FREE for Perlite Institute members to attend. Be sure to add it to your calendar and RSVP to join us virtually for networking, industry updates and more!
Perlite in Sound Insulation Applications
Discover the many sound-blocking and sound-absorbing uses for expanded perlite. When it comes to noise protection in buildings, both sound-absorbing and sound-blocking (or soundproofing) materials come to mind. Each offers unique properties that make them suitable for specific applications. Processes that Govern the Absorption of Sound by Acoustic Materials First, in porous materials, sound energy is transformed into heat by …
Perlite Insulating Concrete Pool Base for In-ground Vinyl Pools
A perlite insulating concrete pool base can substantially reduce heat loss to the ground Perlite ore, when expanded, takes on a low-density cellular structure that makes it an extremely efficient insulation material. For a detailed explanation of perlite expansion, see PDF info sheet: Why Perlite Works. Perlite insulating concrete pool base can substantially reduce heat loss to the ground thus …
Perlite for Lawns and Gardens
Discover the many practical uses of perlite for outdoor gardening While it is a well-known fact that perlite plays an essential role in commercial plant propagation, did you know perlite can also be used to improve the soil, and beautify the landscape around your home? Spending time outdoors with plants and in our gardens can relieve stress, improve physical health …