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Start Production Of Silica From Rice Husk Ash | |
| Rice husk ash silica is a feasible alternative to traditional sand in the concrete industry, especially in places where sand is scarce. Silicon dioxide is produced by extracting silica from rice husk ash using high-temperature calcination and carbonization techniques, and it can be added to concrete mixes to improve properties like as strength, density, air entrainment, and freeze-thaw resistance. The husk left behind from milling is commonly utilised as a fuel in paddy processing boilers, generating energy through direct combustion and/or gasification. By inflicting harm to the ground and surrounding region where it is discharged, this RHA poses a substantial environmental danger. Many solutions are being examined for disposing of them through commercial use of this RHA. India produces 12 million tonnes of rice husks each year. The annual output of husk is expected to be 80 million tonnes. Rice husk is a waste product of the rice milling process that is often left to rot in the field or burned in the open. Rice husk has been used as a fuel for cooking and parboiling paddy rice in some poor countries. Different types of silica area given below:- Rice husk ash's high silica concentration has generated interest in finding economic uses for it. Although silica can be found as a component of cells or cell walls in almost every arial region of the rice plant, it is most abundant in the husk. Silica is one of the most valuable inorganic chemical compounds. Amorphous, crystalline, and gel forms are all possible. Precipitated Silica (also known as particulate silica) is a mixture of colloidal-size ultimate particles that haven't formed a significant gel network throughout the preparation process. There are three different forms of amorphous silica. With high-speed neutrons, silica was created, indicating either amorphous or crystalline silica. Vitreous silica or glass formed by fusing quartz includes micro amorphous silica. At high temperatures, gynogenic silicas are formed by condensation of SiO2 from the vapour phase, or at low temperatures, by chemical reaction in the vapour phase followed by condensation. In an aqueous solution, silica can be found as sols, gels, or particles. Concentrating an under saturated solution into a heated saturated solution, or creating Si(OH)4 of the silica ester SiH4, SiS2, SiCl4, or Si, yields amorphous silica. Precipitated Silica is a porous soluble silicate solution with highly regulated particle sizes. Precipitated silica powders have a more open structure with less volume than dried pulverised gels. As a filler for paper and rubber, as a carrier and diluent for agricultural chemicals, as an anti-caking agent, to control viscosity and thickness, and as a cleansing agent, silica is used in toothpastes and cosmetics. 1. Adhesive: Silica is utilised as a thickening and reinforcing ingredient, as well as to increase bond strength. The dispersed silica particles within a liquid adhesive harden quickly when it comes into contact with a solid surface. Natural and synthetic rubber-based adhesive. 2. Chappals: Silica is used in shoe soles because of its wear and tear resistance, non-scuffing qualities, and capacity to generate light-colored or even translucent compounds. 3. Conveyor Belt & Transmission Belt: Silica is used to improve tear strength because of its small particle size and complex aggregate structure. 4. PVC Sheets: Silica enhances pigment dispersion, works as a separating agent and absorbent to accelerate flow, and imparts a dry feel to the compound. 5. Railway Pads: Silica is used in railway pads for a variety of reasons, including: 6. Rubber Belts and Rubber Hoses: Silica improves the strength and durability of industrial rubber belts and rubber hoses, as well as their heat resistance and tear strength. 7. Silicon Tubes: Silicone rubber is used in a wide range of applications where its unique properties are beneficial. The type and amount of filler used in the compound has a big impact on a lot of these qualities. India's silica market was worth USD 46.8 million in 2019-20. In the coming years, it is predicted to increase at a CAGR of 6.5 percent. Strong product demand in the food industry has helped the market gain pace in recent years due to its anti-caking and super absorption capabilities. The rising use of silica in the rubber industry's manufacturing of micro sheets, rice rollers, thermoplastic rubber, PVC sheets, and shoe soles is likely to propel the market ahead. Increased use of the product in transmission and conveyor belts, notably for higher tear strength and elastomer compound reinforcement, is likely to drive market growth over the forecast period. Tyre demand is increasing in India, China, Indonesia, South Korea, Japan, Malaysia, Taiwan, Mexico, the United States, and Germany, owing to increased car manufacture. Rapid economic growth, increased government spending, improved road infrastructure, and a growing preference for personal transportation are all expected to boost demand for automobiles, propelling the market forward. In 2018, the global silica market was worth USD 5.22 billion, and it is predicted to increase at an annual pace of 8.6% over the next five years. The breadth of the market includes precipitated, fumed, gels and sols, as well as microsilica (fumes). The increased demand for the product from the rubber industry is the primary driver of the market. Silica in rubber improves abrasion resistance, tensile strength, and flex fatigue properties. It is commonly used in tyre applications because of its ability to increase the binding and tear resistance between rubber tyres and iron reinforcements. | |
| Plant capacity: Silica: 5.80 MT Per Day | Activated Carbon (by product): 0.64 MT Per Day | Sodium Carbonate (by product): 0.96 MT Per Day | Plant & machinery: 745 Lakhs |
| Working capital: - | T.C.I: Cost of Project: 1121 Lakhs |
| Return: 27.00% | Break even: 45.00% |
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