Low-temperature vacuum spray dryers, leveraging their unique vacuum environment and low-temperature atomization technology, have become the ideal choice for drying heat-sensitive, highly reactive, or easily oxidized materials. They efficiently complete drying tasks while ensuring the maximum preservation of the original components and functions within the materials.
Precision Control and Efficient Production
Low-temperature vacuum drying technology also plays a pivotal role in the chemical and new materials sectors. Active dyes and catalysts, such as reactive blue dyes and precious metal-supported catalysts, tend to lose activity or agglomerate under high-temperature conditions. However, this technology maintains uniform particle size distribution for these substances at low temperatures, controlling the D50 value within the 10-20μm range.
For instance, a chemical company employed this technology to dry palladium-carbon catalysts, significantly improving palladium dispersion from 60% to 85% post-drying, thereby boosting catalytic activity by 30%.
Additionally, lithium-ion battery materials like cathode materials NCM and LFP are prone to phase transitions at high temperatures, compromising their electrochemical performance. Low-temperature vacuum drying effectively prevents this issue by maintaining lattice stability. For instance, a battery manufacturer achieved an 88% to 92% improvement in initial charge-discharge efficiency and a 20% extension in cycle life after drying NCM811 cathode material using this technology.
Nanomaterials and ceramic powders like SiO₂ and TiO₂ tend to agglomerate under high temperatures. Low-temperature vacuum drying, however, produces well-dispersed powders with D50 particle sizes controlled within the 50-100 nm range. For instance, a new materials company achieved an increase in specific surface area from 50 m²/g to 80 m²/g after drying nano-titanium dioxide, with corresponding photocatalytic activity rising by 40%.