Import Bleaching Earth — Buy in Bulk from Supplier in China

Bleaching earth from Shenzhen Aoheng Science & Technology Co., Ltd is an acid-activated calcium bentonite product, designated as the ATL series, designed for decolorization and purification of oils and waxes. The product is available in four grades - ATL-1, ATL-2, ATL-3, and ATL-4 - each with distinct granularity and decolorization performance. ATL-4 achieves 96% decolorization ability and retains 95% of particles finer than 200 mesh, while moisture content remains below 12% across all grades. Free acid levels are uniformly held at 0.2% or lower, calculated as H2SO4, and pH ranges from 4.5 to 6.0 depending on grade.

The material is derived from natural calcium bentonite and activated using mineral acids to enhance surface area and adsorptive capacity. These grades are not interchangeable; ATL-1 is suited for mineral oils and waxes, while ATL-3 and ATL-4 are optimized for edible oils such as sunflower, olive, and palm. The typical dosage range is 1% to 4% by weight per metric ton of oil, depending on feedstock color and impurity load. The low oil retention characteristic ensures minimal product loss during filtration, a critical factor in high-volume refining operations.

This bleaching earth is primarily purchased by vegetable oil refiners in Southeast Asia and the Middle East, as well as by manufacturers of paraffin and cosmetic waxes. Buyers typically order in bulk quantities of 1,000 kg or more, packed in 25 kg multi-wall paper bags with inner polyethylene lining. Trade terms are commonly FOB Shenzhen Port, with lead times of 10 to 15 days after order confirmation. Buyers should verify the batch-specific decolorization test report and moisture content before shipment.

Shenzhen Aoheng Science & Technology Co., Ltd is a supplier based in Shekou, Shenzhen, with a registered address at R912, B&H Plaza, 27 Nanhai Ave. The company operates as an importer and distributor of industrial mineral products, with bleaching earth being one of its core offerings. Its profile indicates no verified production facility, and no information is provided regarding manufacturing capacity, years in operation, or third-party certifications.

The supplier is classified as 'imported' and has a 'harbor' trust tier, suggesting it engages in cross-border trade but lacks direct verification signals such as response rate or audit history. It does not claim to be a producer, and all product specifications are presented as sourced or distributed properties. Buyers should treat this as a trading entity and confirm batch consistency through lab reports prior to each shipment.