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  2. Sandblasting - Wikipedia

    en.wikipedia.org/wiki/Sandblasting

    Silica sand can be used as a type of mineral abrasive. It tends to break up quickly, creating large quantities of dust, exposing the operator to the potential development of silicosis, a debilitating lung disease. To counter this hazard, silica sand for blasting is often coated with resins to control the dust.

  3. Sand - Wikipedia

    en.wikipedia.org/wiki/Sand

    Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. [2]

  4. Sodium silicate - Wikipedia

    en.wikipedia.org/wiki/Sodium_silicate

    Method 1 requires passing carbon dioxide gas through the mixture of sand and sodium silicate in the sand molding box or core box. The carbon dioxide reacts with the sodium silicate to form solid silica gel and sodium carbonate. [citation needed] This provides adequate strength to remove the now hardened sand shape from the forming tool ...

  5. Silicosis - Wikipedia

    en.wikipedia.org/wiki/Silicosis

    Silica occurs in three forms: crystalline, microcrystalline (or cryptocrystalline) and amorphous (non-crystalline). "Free" silica is composed of pure silicon dioxide, not combined with other elements, whereas silicates (e.g., talc, asbestos, and mica) are SiO 2 combined with an appreciable portion of cations.

  6. Permeability (foundry sand) - Wikipedia

    en.wikipedia.org/wiki/Permeability_(foundry_sand)

    Permeability is a property of foundry sand with respect to how well the sand can vent, i.e. how well gases pass through the sand. And in other words, permeability is the property by which we can know the ability of material to transmit fluid/gases.

  7. Sand casting - Wikipedia

    en.wikipedia.org/wiki/Sand_casting

    Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand—known as casting sand—as the mold material. The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. In 2003, over 60% of all metal ...

  8. Lochaline Mine - Wikipedia

    en.wikipedia.org/wiki/Lochaline_Mine

    It was closed by Tarmac in 2008, but revived in 2012 in a joint enterprise between Pilkington's and Gruppo Minerali Maffei, an Italian mining company, as Lochaline Quartz Sand. [13] At its re-opening, the mine covered 378 acres (153 ha) accessed by 30 miles (48 km) of tunnels, and was estimated to have a working life of a decade and produce an ...

  9. Copper slag - Wikipedia

    en.wikipedia.org/wiki/Copper_slag

    Copper slag is created during the copper smelting process. Around 4.5 million tons of copper slag is produced each year. Although copper slag is used in grit blasting and landfilling, only 15 to 20% of it is being used as of 2015. Since this is a heavily wasted material, finding ways to use it in different industries can reduce overall waste.

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