Scaling the Electrodialysis Colloidal Silica Process Moving from laboratory tests to full production requires sturdy, reliable equipment. Laxminarayan Technologies designs commercial-scale plants for the electrodialysis colloidal silica process, though we also supply pilot plants upon request. Our systems are engineered to handle continuous industrial use with fully automated controls. We ensure that our clients receive a functional, touch-operated plant capable of economical chemical recovery and purification. https://www.electrodialysis.in/appliction-colloidal-silica-manufacture/ Business name: Laxminarayan Technologies Website: https://www.electrodialysis.in/ Address: H16, MIDC, Gokul Shirgaon, Kolhapur, Maharashtra 416234, India

Inside a Skid Mounted Organic Acid Production Plant Photograph of a modular skid before dispatch. The membrane stack, pumps, recirculation tanks and control panel sit on one frame, which cuts down site work to piping and power. Fermentation and specialty chemical units use this layout because floor space is usually tight. Reference: https://www.electrodialysis.in/application-production-of-organic-acid-from-organic-acid-salt/ Contact: Laxminarayan Technologies, H16, MIDC, Gokul Shirgaon, Kolhapur, Maharashtra 416234, India

Control Panel View of a Silica Sol Manufacturing Plant -Automated ED System. Process automation in specialty chemical production is only useful when the control system actually reflects what's happening inside the plant. A display that shows target values without real feedback from sensors is decoration. This image shows the operator interface from a silica sol manufacturing plant commissioned by Laxminarayan Technologies a touch-panel system that monitors live conductivity, flow rate, current density, and pH across the electrodialysis circuit simultaneously. When sodium is being stripped from sodium silicate feed, the rate of removal affects both the final sodium-to-silica ratio in the product and the rate at which colloidal particles grow. Too fast, and silica can aggregate or gel inside the stack. Too slow, and product doesn't meet specification. The control system adjusts current output in response to conductivity readings, keeping the process within the window required for stable colloidal silica formation without an operator manually calculating corrections at each shift. Alarms are configured for conductivity deviation, pressure imbalance between compartments, and flow rate drop the three conditions most likely to indicate membrane fouling or a developing blockage. The system logs operating data continuously, which helps with troubleshooting and supports process optimisation over time. Laxminarayan Technologies builds these plants as complete turnkey systems, including process design, fabrication, control system integration, site commissioning, and onsite operator training. Plants are available at commercial and pilot scale, sized to the client's specific output requirements. https://www.electrodialysis.in/appliction-colloidal-silica-manufacture/ Laxminarayan Technologies H16, MIDC, Gokul Shirgaon, Kolhapur, Maharashtra 416234, India ISO 9001 Certified | Est. 1986

Colloidal Silica Manufacture - Electrodialysis Batch acidification has been the standard method for producing silica sol for decades. When acid is added to a sodium silicate solution, the pH decreases, leading to the formation of silica particles. However, this process has a challenge known as the transition zone, which is the period between acid addition and equilibrium. During this time, local pH gradients can result in uncontrolled particle growth or premature gelation. While this issue can be managed for commodity silica grades, it becomes a persistent quality concern for products with tighter specifications. In contrast, the electrodialysis method offers a more controlled approach. In this process, there is no need for acid addition. Instead, sodium ions continuously migrate out of the silicate solution across ion-selective membranes. This gradual and uniform pH shift throughout the cell facilitates particle nucleation under steadier conditions, resulting in a narrower size distribution and more consistent sol characteristics from one production run to the next. From a financial perspective, eliminating mineral acid from the process reduces costs associated with reagent procurement, handling, and effluent neutralisation—considerations that are significant at a production scale. Laxminarayan Technologies specialises in constructing commercial electrodialysis plants for colloidal silica production, tailored to each producer's desired particle size range and output volume. Pilot plants are available for validation before full-scale implementation. For more information, visit: https://www.electrodialysis.in/appliction-colloidal-silica-manufacture/ Business Credit: Laxminarayan Technologies H16, MIDC, Gokul Shirgaon, Kolhapur, Maharashtra 416234, India ISO 9001 Certified | Est. 1986