precipitated silica manufacturing process using olivine

Precipitated Silica Manufacturing Process Using Olivine

US20090263657A1 - Process for production of precipitated ...

Process for the production of precipitated silica from olivine including the following steps:—providing olivine particles with a particle size preferably below 1 mm in diameter,—preferably mixing olivine and water to form an olivine/water slurry,—mixing the olivine/water slurry with hydrochloric acid (HCl), preferably at a concentration at 18 wt % or above, and at a temperature preferably between 50-130° …

precipitated silica manufacturing process using olivine

The dissolution of olivine is a convenient alternative route to the existing methods of nano-silica production (neutralization of sodium silicate and flame hydrolysis) because the olivine dissolution is a low temperature process making this method cheaper and greener Furthermore, this process can use waste olivine materials for the production of nano-silica The produced nano-silica has a .

Process for production of precipitated silica from olivine

Process for the production of precipitated silica from olivine including the following steps: providing olivine particles with a particle size preferably below 1 mm in diameter, preferably mixing olivine and water to form an olivine/water slurry, mixing the olivine/water slurry with hydrochloric acid (HCl), preferably at a Concentration at 18 wt % or above, and at a temperature preferably between 50 -130° …

precipitated silica manufacturing process using olivine

Precipitated silica vertical mil China_Vertical roller Precipitated silica raymond mill silica , raymond mill manufacturers in china , Crusher Plants In Srilanka; , precipitated silica manufacturing process using olivine; , exporters, sellers, manufacturers, factories, traders , Silica Sand Sri , silica in srilanka …

precipitated silica manufacturing process using olivine

precipitated silica manufacturing process using olivine , precipitated silica manufacturing process using olivine precipitated silica manufacturing process using . The use of Olivine nano-silica in the construction ,

US8114371B2 - Process for production of precipitated ...

Process for the production of precipitated silica from olivine including the following steps: providing olivine particles with a particle size preferably below 1 mm in diameter, preferably mixing olivine and water to form an olivine/water slurry, mixing the olivine/water slurry with hydrochloric acid (HCl), preferably at a Concentration at 18 wt % or above, and at a temperature preferably between 50 -130° …

Process for production of precipitated silica from olivine ...

Oct 22, 2009 · Process for the production of precipitated silica from olivine including the following steps:—providing olivine particles with a particle size preferably below 1 mm in diameter,—preferably mixing olivine and water to form an olivine/water slurry,—mixing the olivine/water slurry with hydrochloric acid (HCl), preferably at a concentration at 18 wt % or above, and at a temperature …

Nano-silica production by a sustainable process ...

separation. Subsequently the precipitated silica is separated from the solution by filtration and washing steps. Figure 1. Schematic process flow diagram of the olivine process. 2.1 Dissolution of olivine The dissolution of olivine can be subdivided in several processes. During the dissolution

What is Precipitated Silica | PPG Silica Products

Precipitated silica, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.

Precipitated silica - Wikipedia

Production. The production of precipitated silica starts with the reaction of an alkaline silicate solution with a mineral acid. Sulfuric acid and sodium silicate solutions are added simultaneously with agitation to water. Precipitation is carried out under alkaline conditions. The choice of …

Synthesis of a Green Nano-Silica Material Using ...

Furthermore, this process can use waste olivine materials for the production of nano-silica. The produced nano-silica has a specific surface area between 100 and 400 m. 2 /g; a primary particle size between 10 and 25 nm, which is agglomerated in clusters; and an impurity content below 5 wt.%. In addition, olivine nano-silica can be

PRELIMINARY DESIGN OF PRECIPITATED SILICA PLANT FROM ...

of 45,000 tons/year. Precipitated silica (SiO 2) is the oxidation of non-metallic compounds. it has a solid powder form, white, odorless, insoluble in water, and has a crystalline structure. The process of manufacturing of precipitated silica using silicate acidification uses …

Process for the production of precipitated silica ...

Jan 16, 1996 · A process for the production of a reinforcing precipitated silica with a surface area of above 200 m 2 /g is known from DE-B 14 67 019. This precipitated silica is not suitable for use …

Synthesis and characterization of amorphous precipitated ...

Synthesis and characterization of amorphous precipitated silica from alkaline dissolution of olivine† Nadeem Raza, ab Waseem Raza,c Silvia Madeddu,a Henry Agbe,a R. V. Kumara and Ki-Hyun Kim *d The high worldwide demand for amorphous precipitated silica (APS) materials, millions of tons worth

Synthesis and characterization of amorphous precipitated ...

In this research, amorphous precipitated silica was synthesized from alkaline dissolution of olivine using a mixture of NaOH and KOH and characterized; this combination resulted in better kinetics than those of the separate components.

One-step synthesis of ordered mesoporous silica from ...

Precipitated silica produced from the reaction of olivine with sulfuric acid was recently shown to be an attractive alternative to precipitated and fumed silica that produced from sodium silicate (Lazaro et al., 2012). Olivine reacts with acid solutions forming silicic acid, which releases large amounts of heat.

Olivine Uses - CrystalBenefits

Uses of Olivine. This can be done by dissolving olivine in a hydrochloride solution where silica is precipitated and the remaining solution is of magnesium chloride. This mixture can be easily separated and with the further processes magnesium metal can be obtained. Silica is …

The use of Olivine nano-silica in the construction industry

The optimum replacement level of olivine nano-silica in SCC would be around 3.8% bwoc. The addition of nano-silica causes an increase in the required superplasticizer amount (3.5 vs 35.2 kg/m ) to obtain the same workability class.

Synthesis of a Green Nano-Silica Material Using ...

Nano-silica, one of the substances boosting the field of nanomaterials, can be produced by dissolving olivine in acid. The dissolution of olivine is a convenient alternative route to the existing methods of nano-silica production (neutralization of sodium silicate and flame hydrolysis) because the olivine dissolution is a low temperature process making this method cheaper and greener.

Last Article: Belt Of Conveyor Machine Cost   Next Article: Stationary And Mobile Screening Technology

Related articles:

2006-2020 © All rights reserved
Add: New Technical Industry Development Area, Zhengzhou, Henan, China. Postcode: 450001
E-mail: [email protected]