History of Bentonite
Bentonite was first used in Cyprus BC 5000 in order to remove the oil from wool.
Humidified bentonite was applied on wheels of ox carts in order to make scraping noise.
It was used as insulation material.
The Indians used bentonite as soap.
In 1868 , Fullers Earth ( name for bentonite in England ) was patented on purifying paraffin.
The same inventor then took out a patent on purifying hydrocarbons, vegetable oil and animal fat.
In 1880 , bentonite was used in partially refining cooking oil and sometimes bleaching in USA.
Bentonite has been used as drilling mud since 1901, it is currently being used in drilling and tunneling.
In 1906 , the bleaching soils were activated with acids in Germany.
Bentonite was used in refining oils or bleaching their color by activating with acid. This product is still sold as clay activated with acid. It was being used in disintegrating petroleum until more qualified catalysts were discovered.
Since 1920, bentonite has been used in order to bond molding sands in casting industry. Casting sector is the field in which the bentonite is most commonly used. Its consumption reaches up to 3.5 million tons per year.
The properties of bentonite were changed in 1949 in order to use in mediums without water. The obtained organo-clays were used as drilling liquid and thickener for coatings.
Bentonite has been used as cat litter since 1959.
Bentonite is used as additive in production of glue, animal feed, pelletization of iron ore, paper production, partial water treatment, preserving dough in paper and providing homogeneity, production of carbon free copying paper, waste water treatment; as thickener in surrounding nuclear wastes, washing clothes, softening fabrics, dehumidifying and oil absorbing and water based products; and in many other embodiments.
The newly developed field of use of bentonite is being used as polymer additive. By adding bentonite the gas preventing and temperature parrying features of polymer are improved and thus the inflammation of polymer is retarded. Flame retarders produced from bentonite are used in products requiring resistance to temperature and flame such as plastic electric plugs.
On 12 September 2005, the experiment results showing that HIV (Aids) and flu virus were prevented with bentonites.