Applications of Solvay Tixosil 38A Precipitated Silica Carrier in Industrial Manufacturing

Solvay Tixosil 38A serves as a high-performance precipitated silica carrier with established records in various specialized industrial applications. The following sections provide detailed insights into typical downstream sectors, reflecting genuine formulation, compliance, and product requirements for manufacturing industries worldwide.

1. Agrochemical Granule and Powder Formulation

Agrochemical producers value Tixosil 38A for its ability to enhance flow and disperse actives in solid pesticide formulations, including water-dispersible granules and wettable powders. Manufacturers integrate the material to achieve precise loading of liquid technical actives, improve anti-caking properties, and reinforce granule stability during storage and transportation. The formulation process requires careful control to balance adsorption capacity with quick release in the field, enhancing yield and safety in crop protection products.

Industry compliance standards

• FAO/WHO Specifications for Pesticides
• EU REACH Regulation (EC) No 1907/2006
• EPA 40 CFR Part 180 (Tolerance exemptions for inert ingredients)
• ISO 9001 Quality Management in agrochemical formulation

Typical usage ratio

• 10%–40% by weight, depending on liquid active loading and required granule flow properties; adjusted based on target release profile and formulation density

Downstream process integration

• Dry mixing with actives and excipients in high-shear mixers
• Spray-on technique for liquid actives adsorption
• Extrusion and granulation for granule build-up
• Final sieving and dust control prior to packaging

Final product types

• Water-dispersible herbicide and insecticide granules (WG/WDG)
• Wettable powder pesticides (WP)
• Fungicidal dry preparations

2. Food Additive Flow Aid and Carrier

Food ingredient manufacturers select Tixosil 38A to serve as a carrier for liquid flavors, vitamins, and sensitive neutraceuticals, especially in powdered beverage and instant product segments. The material stabilizes moisture-sensitive actives, minimizes caking, and ensures homogenous blending during large-scale batch production. The carrier function supports both preservation of bioactivity and effective dosing in final premixes and drink formulations targeted at regulated markets.

Industry compliance standards

• USP/NF (United States Pharmacopeia/National Formulary) standards for silica
• EU Commission Regulation (EU) No 231/2012 (E551)
• FCC (Food Chemicals Codex) monograph for precipitated silica
• HACCP and FSSC 22000 food safety systems

Typical usage ratio

• 1%–6% by weight, adjusted by the oil/water content of the ingredient to be carried and free flow target

Downstream process integration

• Pre-blending with liquid flavorings, vitamins, or omega-3 oils under controlled humidity
• Drying and sieving to ensure flow and dose accuracy
• Blending into mastermixes for beverages, soups, or dietary supplements
• Packaging under food hygienic conditions

Final product types

• Instant powder drinks enriched with micronutrients
• Premix blends for dairy and plant-based beverages
• Vitamin or functional food granulate additives

3. Animal Feed Additive Carrier

Manufacturers in the animal nutrition sector use Tixosil 38A to efficiently deliver liquid vitamins, enzymes, and medicated oils in powdered feed products. The carrier addresses the need for uniform dispersion and dosing of functional ingredients—crucial for bioavailability in feed pellets and meal. Silica’s flow-improving properties reduce bridging in hoppers and extend shelf life, even under humid storage conditions, while supporting compliance with feed safety and labeling rules.

Industry compliance standards

• Regulation (EC) No 1831/2003 on additives in animal nutrition
• EU Catalogue of Feed Materials (Commission Regulation (EU) No 68/2013)
• AAFCO (Association of American Feed Control Officials) feed ingredient definitions
• ISO/TS 22002-6:2016 (Feed and pet food manufacturing)

Typical usage ratio

• 2%–10% by weight, dependent on oil load and viscosity of the additive

Downstream process integration

• Spraying or dripping of liquid additives onto silica powder in ribbon or paddle mixers
• Homogenization and drying to produce free-flowing premix
• Direct inclusion in compound feed blending or pellet production
• Quality control for flow index and particle uniformity before packaging

Final product types

• Vitamin and trace mineral premixes for livestock feed
• Enzyme-enriched feed additives
• Medicated animal feed supplements

4. Rubber and Silicone Elastomer Processing

Rubber and elastomer compounders use Tixosil 38A as a processing aid and multifunctional carrier for peroxides, silanes, and other liquid process chemicals. It improves powder handling, ensures accurate dosing, and minimizes local overconcentration of curing agents during compounding. In silicone extrusion and rubber calendaring, the carrier also supports dispersion of non-dusty active additives in high-viscosity systems, maintaining batch-to-batch consistency and final mechanical properties.

Industry compliance standards

• ISO 9001:2015 for quality management in rubber and elastomer manufacturing
• DIN EN ISO 14001:2015 for environmental management
• ASTM D4676 (Standard Classification for Rubber Compounding Materials—Silica)
• REACH pre-registration for process chemicals

Typical usage ratio

• 5%–20% by weight, adjusted for liquid additive load and mixing method

Downstream process integration

• Pre-adsorption of vulcanizing agents or liquid accelerators onto silica carrier
• Incorporation into rubber masterbatches or silicone base during internal mixing
• Quality control for carrier dispersion effectiveness
• Direct transfer to extrusion or molding operations

Final product types

• Automotive and industrial silicone profiles
• Peroxide-cured rubber seals and gaskets
• High-performance elastomer compounds for molded parts

5. Detergent and Cleaning Product Carrier

Producers of powdered household and industrial cleansers incorporate this carrier to stably hold liquid fragrances, bleaching agents, and surfactant enhancers. The silica enables measured dry dosing in automated production, protected against premature instability. The carrier ensures that sensitive functional additives, such as enzymes or oxygen donors, remain active until end use, supporting stringent quality and labeling requirements for high-volume detergent formulations.

Industry compliance standards

• Regulation (EC) No 648/2004 (Detergents Regulation, EU)
• IFRA Guidelines for fragrance handling
• ISO 9001 for detergent production process control
• SDS documentation and hazardous materials management

Typical usage ratio

• 3%–12% by weight, determined by the viscosity and load of liquid actives, batch size, and free-flow targets

Downstream process integration

• Adsorption of liquid actives onto silica prior to main detergent blending
• Continuous or batch dry mixing into base detergent powders
• Sieving for uniform particle size and preventing caking
• Automated filling into sealed packaging

Final product types

• Free-flowing detergent powders for home and industrial use
• Bleach-activated laundry additives
• Fragrance and enzyme-boosted cleaner granules