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Expanded perlite is produced by perlite expansion furnace, it is a kind of white granular material with a honeycomb structure inside which is made by preheating and instantaneous high temperature roasting. ... The ore particles are controlled by the force in the direction of the furnace chamber. The force of the ore can be summarized into two ...
The Benefits of Perlite as Insulation. When perlite ore is expanded by exposure to rapid, controlled heating, it grows up to 20 times its original volume and takes on a -like cellular internal structure — essentially clusters of microscopic glass bubbles. This physical transformation makes expanded perlite an extremely efficient, low. MORE
expanded perlite controlled particle perlite products Prior art date Application number GE5100A Inventor Scott K Palm Bo Wang Christopher Hayward John S Roulston Original Assignee Advanced Minerals Corp Priority date (The priority date is an assumption and is not a legal conclusion.
The present invention relates to improved perlite products with a controlled particle size distribution, which can be used primarily in filtration operations and as fillers. In the products according to the invention, the standard deviation of the particle size distribution is less than 0.63 with respect to the median particle size and less than 50 microns with respect to the median particle size.
Insulation. When perlite ore is expanded by exposure to rapid, controlled heating, it grows up to 20 times its original volume; this transformation drastically reduce the heat transmission through masonry walls and makes the expanded perlite an excellent thermal and sound insulators, it is also used in paints and gypsum blends as an improver.
Perlite ore is a dense glassy volcanic rock closely related to pumice, but differs principally in its combined water content, which allows perlite ore to be "popped"—expanded up to 20 times its original volume when exposed to rapid, controlled heating.
Perlite is a naturally occuring glassy volcanic rock. When heated at extreme temperatures, it pops like popcorn, expanding up to 20 times its size. The size and grade of expanded perlite determine its use. Perlite's versatility is due to its unique characteristics: Lightweight. Fireproof.
EP-1309398-B1 chemical patent summary.
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Expanded perlite products having controlled particle size distribution, methods of producing the expanded perlite products, and methods of use thereof are provided. The expanded perlite product has, for example, a low ratio of standard deviation of particle size distribution to median particle size (for example, less than 0.63) and low median particle size (for example, less than 50 microns).
Perlite is a naturally occurring volcanic rock formed from siliceous lava or ash. Due to rapid cooling, the lava or ash solidifies into a glass-like rock. Over tens of thousands of years, surface and ground water infiltrates the rock and becomes trapped in the glass structure. When heated at temperatures from 750 to 1,250°C, perlite expands ...
Crude perlite expanded for use as a concrete aggregate ranges from 1 mm (plus 16 mesh) to 0.2 mm (plus 100 mesh). Ninety percent of the crude perlite ore expanded for horticultural uses is greater than 841 µm (20 mesh). Crude perlite is mined using open-pit methods and then is moved to the plant site where it is stockpiled.
Expanded perlite [Note: An amorphous material consisting of fused sodium potassium aluminum silicate.] Odorless, light-gray to glassy-black solid. [Note: Expanded perlite is a fluffy, white particulate.]
Expanded perlite can be manufactured to weigh as little as 2 pounds per cubic foot (32kg/m 3) making it adaptable for numerous applications. Since perlite is a form of natural glass, it is classified as chemically inert and has a pH of approximately 7. Typical Physical Characterictics of Perlite . Color:
Growing Media Expanded Perlite In Farm Our well-equipped facilities and superb good quality control throughout all stages of manufacturing enables us to guarantee total buyer gratification for Growing Media Expanded Perlite In Farm, Zeolite Granular, Clinoptilolite Zeolite, Agricultural Zeolite, …
Classifications. B — PERFORMING OPERATIONS; TRANSPORTING; B01 — PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; B01J — CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS
No chemical incompatibilities reported. When heated to a sufficiently high temperature, it expands to between four and twenty times its original volume as its 2-6% by weight of loosely bound water boils away. When quickly heated to above 1600 degrees F, pops like popcorn as its water vaporizes. Expanded perlite is a fluffy, white particulate.
Perlite is a versatile mineral that is mined and processed with negligible impact on the environment. When perlite ore is expanded or "popped" by rapid, controlled heating, it expands up to 15 times its original volume and takes on a -like cellular appearance – essentially clusters of microscopic glass bubbles, creating a porous structure.
Perlite for Horticulture When perlite ore is expanded or "popped" by rapid, controlled heating, it expands up to 15 times its original volume and takes on a -like cellular appearance — essentially clusters of microscopic glass bubbles, creating a porous structure.
The Benefits of Perlite as Insulation. When perlite ore is expanded by exposure to rapid, controlled heating, it grows up to 20 times its original volume and takes on a -like cellular internal structure — essentially clusters of microscopic glass bubbles.
Perlite as a Sludge Absorbent. When perlite ore is expanded by exposure to controlled heating, it grows up to 20 times its original volume and takes on a -like cellular internal structure – essentially clusters of microscopic glass bubbles. Fine grades of perlite are mostly broken portions of these clusters, exhibiting a very large ...
An expanded perlite product having a controlled particle size distribution wherein the ratio of the standard deviation of particle size distribution to the median particle size is less than 0.63 and wherein the median particle size is less than 50 microns. 2. The expanded perlite product of claim 1, wherein the ratio of the standard deviation ...
These characteristics give the expanded and processed Socorro ore unmatched quality and consistency. In addition, we own and operate both the perlite ore mining locations and the processing and expansion facilities, allowing us to maintain a much higher level of quality control and ensuring volume and supply for our expanded perlite customers.
Expanded perlite is hydrophobic, and it has an inherent chemical makeup that actively inhibits corrosion. The dual nature of perlite allows it to work to prevent CUI even after elevated temperatures (greater than 450°F or 232°C) have oxidized the organic ingredients that make the insulation hydrophobic.
Sound-Absorbing Perlite-Based Products – Expanded perlite is traditionally used as a primary constituent in the production of lightweight sound insulating panels and ceiling tiles. ˚e intrinsic porous nature of lightweight expanded perlite absorbs sound waves and reduces the reverberation time. Another option is the use of perlite as ˛ller in
Perlite filter aids are produced by controlled milling and size classification of expanded perlite. A prerequisite for the production of good quality perlite filter aids is a high-quality perlite ore. Most perlite ores are not satisfactory for filter aid production. Perlite filter aids are often touted for their 25% more filtering capacity.
Once exposed to rapid, controlled heating, the expanded perlite takes on a -like structure of microscopic glass bubbles that contain a multi-cellular core. These clusters of glass bubbles have many unique qualities that offer great advantages in industrial uses. In addition to being lightweight, Ryolex is non-toxic, non-combustible ...
JP-2004506581-A chemical patent summary.
The insulation of LNG tanks with expanded perlite is a unique and specific job. To carry out projects of this magnitude, the expansion of the mineral must be performed on site and installation inside the tank must be executed at the same time.. Due to the large volume and dimensions of the facilities, the expanded mineral that is inserted into the tank must be compacted in layers to minimise ...
B — PERFORMING OPERATIONS; TRANSPORTING; B01 — PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; B01J — CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMI
Perlite is naturally weed and pathogen-free, and readily holds moisture and nutrients that are crucial to a plant's development. Perlite is used in the silviculture industry, and for starting row crops such as hops, and in seed production requiring controlled conditions. It is used extensively for growing tomatoes, cucumbers, peppers, figs ...
US6464770B1 US09/635,214 US63521400A US6464770B1 US 6464770 B1 US6464770 B1 US 6464770B1 US 63521400 A US63521400 A US 63521400A US 6464770 B1 US6464770 B1 US 6464770B1 Authority
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