Solvent-resistant nanofiltration membrane

Solvent Purification and Recycling Equipment

Large volume of cleaning solvent generated

➢ Aromatic, ester, and other solvents

➢ High flux

➢ Replaces distillation recovery processes

➢ Reduces operating costs

➢ Energy saving and emission reduction

Active Pharmaceutical Ingredient (API) Concentration

➢ Target product concentration in retentate: 50,000 ppm, permeate concentration: 40 ppm

➢ High rejection rate, high flux (>50 LMH)

➢ Permeate recycled as extraction solvent

➢ Low-temperature operation, shortened processing time, avoids thermal degradation of API

Natural Extract Concentration

➢ Green and mild process, improves product quality

➢ Ethyl acetate solutions, heat-sensitive natural plant extracts

➢ Gentle concentration, room temperature operation, ensures product integrity

➢ 30 bar operating pressure, high flux up to 50 LMH, high degree of concentration

▪ Active compound concentration ▪ Impurity removal

Electronic Grade Solvent Purification

➢ High removal rate of metal impurities

➢ Low energy consumption, low emissions

➢ Modular design, green manufacturing

Homogeneous Catalyst Separation and Recovery

➢Heavy metal enrichment in organic phase

➢ Organic solution containing chromium acetate, chromium concentration approx. 8000 ppm

➢ Rejection rate >99%

➢ HP OSN membrane, effective membrane area 32m², single membrane processing capacity 120L-150L per hour

➢Homogeneous precious metal catalyst recovery

➢ Catalyst retains activity, high reaction conversion rate maintained

➢ Low heavy metal content in product

➢ Catalyst recovery

➢ Reduces operating costs

Homogeneous Catalyst Separation and Recovery

We Provide

▪ Collaborative process development

▪ Supply of various grades of solvent-resistant nanofiltration membranes

▪ Integrated process solutions

▪ Open and win-win cooperation model

Solvent Purification and Recycling Equipment

ElectronicOrganic Solvent Nanofiltration: A New Frontier in Molecular Separation

      The ability to achieve molecular-level separations in aqueous solutions using membranes was realized in the late 20th century, followed by the separation of ions and other molecules through reverse osmosis and nanofiltration. Until recently, these two separation technologies were almost exclusively used for wastewater treatment, desalination, and the food and beverage industries. Over the past decade, membrane separation of molecules dissolved in organic liquids (organic solvent nanofiltration, OSN) has emerged as a new field of membrane separation science, due to its broad application prospects in chemistry-related industries. This reflects its significant potential benefits. Why? Common purification processes (such as distillation, extraction, chromatography, adsorption, and crystallization) are either energy-intensive, material-intensive, or face stability issues. It is widely acknowledged that "...separation processes account for 40-70% of industrial capital and operating costs...". A simple calculation can be made: concentrating a solute tenfold in a specific solvent using OSN technology consumes less than 10% of the energy required by thermal separation techniques (like distillation). Clearly, OSN can substantially reduce costs.