Diatomite – Natural Porous Functional Mineral Material Empowering Green Development Across Multiple Industries

Diatomite is formed by fossilized remains of ancient diatoms, mainly composed of silica, produced via raw ore crushing, calcination, flux-assisted purification, air classification and precision screening. It is an eco-friendly natural mineral material featuring unique microporous structure, strong adsorption capacity, excellent permeability, lightweight texture, high temperature resistance and chemical inertness. With SiO₂ content reaching over 85% and particle sizes adjustable from 20 mesh to 1000 mesh, diatomite is an irreplaceable auxiliary material for food filtration, environmental governance, agriculture, building materials and fine chemical manufacturing. As global industries shift toward clean production, low carbon and circular economy, diatomite has become a cost-effective green raw material boosting industrial energy conservation and emission reduction.

In food and beverage filtration industry, diatomite serves as a core filter aid for clarification and impurity removal. High-purity flux-calcined white diatomite complies with GB 14936-2012 food-grade standard, widely applied in beer, wine, fruit juice, edible oil and syrup processing. Its controllable Darcy permeability ranging from 0.8 to 12 can match vacuum drum, plate-and-frame and bag filter equipment perfectly. It effectively adsorbs yeast, protein, pigment and suspended solids without introducing harmful substances, brightening liquid clarity and optimizing flavor. For oily and viscous raw materials, coarse-grained 700#–1000# diatomite accelerates filtration; medium 300#–500# grades are universal for edible oil and sewage treatment; 325 mesh white diatomite is the mainstream choice for beer and drinking water purification.

The environmental protection sector leverages diatomite’s superior adsorption property for pollution treatment and indoor air purification. In wastewater treatment, 300# and 500# diatomite traps heavy metal ions, organic pollutants and suspended sludge in pharmaceutical, chemical and aquaculture sewage, lowering water turbidity to meet discharge standards. As raw material for diatom mud wall paint, 325 mesh high-white diatomite absorbs formaldehyde, peculiar smell and moisture indoors, realizing automatic humidity regulation, flame retardancy and mildew resistance. It also acts as waste gas adsorbent to capture hydrogen sulfide, volatile organic compounds from factory exhaust, and works as low-cost desiccant for industrial raw material storage thanks to its strong water absorption capacity.

In agriculture and animal husbandry, diatomite optimizes soil quality and improves crop cultivation efficiency. Uncalcined grey raw diatomite loosens clay soil to enhance air permeability and water retention, and increases fertilizer retention for sandy land. Medium-fine 325 mesh diatomite is used as carrier for pesticides, insecticides and seed coating agents, which evenly loads active ingredients and extends sustained release period to raise pesticide utilization rate. When added into poultry and aquafeed, diatomite adsorbs mycotoxins in feed and assists intestinal peristalsis, reducing livestock diseases and improving survival rate. Coarse 1–9mm granular diatomite is popular horticultural substrate for potted plants and green planting.

In construction, rubber and plastic filler industries, diatomite acts as lightweight reinforcing additive to cut production costs. Yellow calcined diatomite can be processed into thermal insulation bricks and wall panels, featuring low thermal conductivity for heat preservation and noise reduction, while adding 5% diatomite into cement boosts its activity and structural strength. 200 mesh and 325 mesh diatomite are filled into rubber, tires, plastic and silicone rubber to upgrade wear resistance, heat resistance and surface smoothness, serving as low-cost substitute for kaolin, mica powder and perlite. Coarse 20–40 mesh diatomite powder is made into polishing abrasive for metal, stone and exfoliating skincare scrub.

As auxiliary raw material for fine chemicals and daily cosmetics, diatomite supports high-standard fine processing. Food-grade purified diatomite is used in pharmaceutical liquid pre-filtration to extend filter membrane service life. In facial masks and cleansing products, its mild porous structure removes excess sebum and aged keratin from skin without irritation. It also functions as stable catalyst carrier, uniformly dispersing catalytic active components and elevating reaction efficiency in chemical synthesis.

Thermal insulation and refractory manufacturing also gain great benefits from diatomite. Its lightweight, heat-resistant and heat-insulating characteristics make it ideal lining material for industrial furnaces, high-temperature insulation layers and fire-retardant coatings. It stabilizes continuous high-temperature production, lowers furnace energy consumption and cuts long-term operation expense for metallurgy, chemical and thermal power factories. As natural green mineral, diatomite is non-toxic, harmless and recyclable, fully conforming to sustainable low-carbon manufacturing demands.

Our company focuses on integrated mining, calcination, classification and supply of diatomite products, providing uncalcined grey, common calcined yellow and flux high-white diatomite with customizable mesh size, permeability and whiteness. All products pass GB/T24265-2014 industrial standard and GB 14936-2012 food standard, with complete qualification documents including test COA, MSDS and ISO 9001 quality certification. Supported by automatic production lines and strict batch-by-batch physical & chemical inspection, we maintain sufficient spot inventory for bulk shipment and provide customized formulation solutions for food processing, environmental engineering, agricultural planting, new building materials and fine chemical clients worldwide, promoting green and low-carbon transformation of all industries.

FAQs about Diatomite

What industries apply diatomite products?

Food & beverage filtration, sewage treatment, indoor environmental purification, agriculture & breeding, thermal insulation construction, rubber plastic filling, fine chemical industry and daily cosmetics.

What core performance advantages does diatomite possess?

Natural microporous adsorption, adjustable filtration permeability, lightweight low density, acid & alkali resistance, high temperature stability, non-toxic eco-friendly, low-cost alternative to synthetic chemical raw materials.

What types, particle sizes and specifications are available?

Three main categories: grey uncalcined raw ore, yellow medium calcined grade, white flux high-purity grade; mesh range covers 20 mesh to 1000 mesh, granular diatomite (1–9mm) for planting, customizable permeability and packaging.

Is diatomite applicable for food contact and drinking water filtration?

Yes. Flux-calcined high-white food-grade diatomite meets national food safety standard, safe for beer, wine, edible oil, drinking water and pharmaceutical filtration.

Can you offer customized products and professional technical support?

Yes. We provide tailor-made whiteness, mesh size, permeability and packaging standards, supply full set test reports, and deliver on-site technical guidance for filtration, formula filling and soil improvement projects.