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Sodium?bentonite?expands when wet, absorbing as much as several times its dry?mass?in?water. Because of its excellentcolloidal?properties,it is often used in?drilling mud?for?oil?and gas wells and for geotechnical and environmental investigations.It is used to line the base of?landfills?to prevent migration of?leachate, for quarantining metal pollutants of groundwater, and for the sealing of subsurface disposal systems for spent nuclear fuel.It is also used to form a barrier around newly planted trees to constrain root growth so as to prevent damage to nearby pipes, footpaths and other infrastructure.Sodium bentonite can also be "sandwiched" between synthetic materials to create?geo-synthetic clay liners (GCL)?for the aforementioned purposes. Sodium bentonite is also used in a variety of pet care items such as cat litter to absorb the odour and surround the feces.
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Calcium bentonite?is a useful?adsorbent?of ions in solution,as well as fats and oils, being a main active ingredient offuller's earth, probably one of the earliest industrial cleaning agents.Calcium bentonite may be converted to sodium bentonite (termed sodium beneficiation or sodium activation) to exhibit many of sodium bentonite's properties by a process known as "ion exchange" In common usage, this means adding 5–10% of a soluble sodium salt such as sodium carbonate to wet bentonite, mixing well, and allowing time for the ion exchange to take place and water to remove the exchanged calcium.[citation needed] Some properties, such as viscosity and fluid loss of suspensions, of sodium-beneficiated calcium bentonite (or sodium-activated bentonite) may not be fully equivalent to those of natural sodium bentonite.For example, residual calcium carbonates (formed if exchanged cations are insufficiently removed) may result in inferior performance of the bentonite in geosynthetic liners.
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[casting?capability]
humidity?intensity kg/cm2 | hotly?wet?pulls?the?intensity gf/m | sol?price?(%) | attracts?blue?quantityg/100g?soil | granularity through?200?item?sieves?% | inflation?multiple | water?content (%) |
>0.3 | ≥16 | ≥60 | 38 | 95 | ≥10 | ≤12 |
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[Feed?Bentonite?capability]
Montmorillonite?content | Wet?compressive?strength | Glial?price?(%) | attracts?blue?quantityg/100g?soil | granularity through?200?item?sieves?% | inflation?multiple | water?content (%) |
≥65% | 45—55 | 55-90 | 29 | 95 | ≥10 | ≤12 |
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Shijiazhuang?ShengPing Minerals
Known for manufacturing and exporting a wide range of best quality Kaolin & bentonite, Shengping minerals was set up in the year 2002 at Shijiazhuang city of Hebei province.
The product range offered by us comprises comprehensive, salt lamps, negative ion powder, tourmaline powder, far infared ceramic ball, calcium carbonate, mica and vermiculite.
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Address :?Xizhuang Village, Nanyanchuan Township, Lingshou County, Shijiazhuang,Hebei, China
Post Code : 050000
Tel?:?+86-0311-68003825
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