|
General
- Diatomite
(diatomaceous earth, kiselguhr) is a sedimentary rock of marine or
lacustrine deposition.
- Diatomite can be
considered as inert due to the chemical composition, which imply that
diatomite does not affect taste, smell or colour.
- Diatomite is often
referred to as a diatomaceous earth, but this appellation may be
inappropriate, especially for clays, even though they also are the
result of trillions of defunct diatoms piling up.
- Diatomaceous earth,
also known as DE, TSS, diatomite, diahydro, kieselguhr, kieselgur and
celite.
- Diatomite is a
powdery, non-metallic mineral composed of the fossilised skeletal
remains of microscopic single-celled aquatic plants called diatoms.
- Diatomaceous earth
consists of fossilized remains of diatoms, a type of hard-shelled algae.
Process
- Most diatomite
deposits in the Philippines is almost always refined/ processed due to
clay impurities, which reduces the good physical properties required by
industrial users.
- Diatomite can also be
upgraded by leaching, a process by which a soluble metallic compound is
removed from a mineral by selectively dissolving it in a suitable
solvent like sulfuric acid.
- Diatomite mining in
the United States is all open pit, normally using some combination of
bulldozers, scraper-carriers, power shovels, and trucks to remove
overburden and the crude material.
Application
- Diatomite is used as
a filtration aid, as a mild abrasive, as a mechanical insecticide, as an
absorbent for liquids, as cat litter, as an activator in blood clotting
studies, and as a component of dynamite.
- Diatomite has been
widely used in sound and heat insulation as filters, abrasives and in
the manufacture of explosives.
- Diatomite as filter
aid is used primarily to increase flow rate and remove visible suspended
matters.
Technology
- A microprobe Raman
technique was used to characterize a selection of diatomite samples.
- Focused Ion Beam
(FIB) technology has been developed and 3D pore images of the pore
system for diatomite and chalk have been obtained.
- Diffuse reflectance
infrared Fourier transform spectroscopy (DRIFT), Raman spectroscopy of
adsorbed Pyridine molecules (Py-Raman) and in situ Py-IR have been used
to investigate the hydroxyl species and acid sites on diatomite
surfaces.
- The Carbon/Oxygen
logging technique to determine vertical sweep in Belridge Diatomite in
the Lost Hills Field.
Market
- The United States is
the largest producer and consumer of diatomite in the world.
- On the basis of
historical production figures, estimated U.S. diatomite-production
capacity is currently about 800,000 metric tons per year (t/yr).
- The USA and China
continue to dominate world production, with future expansion in
diatomite production likely to be concentrated in China.
- Although the market
for diatomite is estimated to remain stable in the short-term, the
longer-term outlook may be less optimistic.
- Diatomite pricing is
very competitive and leading producers have traditionally discounted
list prices to retain market share.
Entrepreneur who wants the
information on "General Information, Production Process,
Technology, Applications, Patent, Function, Consultants, Company Profiles,
MSDS, Reports,
Market" can E-mail us to
informer@eth.net ,
primaryinfo@gmail.com |
Production Process,
Technology, Applications, Patent, Function, Consultants, Company Profiles, Reports,
Market
