Parametric Differential Moving Bed named as PDMB, characterizes by obtaining target separation system's elution profile via optimized chromatography's separation parameters between selected solid sorbent and mobile phase; such generalized process employ an apparatus transforming such profile for mass production purpose, wherein disclosed apparatus bypassing imperfections observed in chromatography via new mass transfer equilibrium contact method, differential set-up between two phases, eliminating displacement zone via maintaining installed resin/adsorbent in semi-dry status thus enhancing maximum mass transfer efficiency. Through implementing aforesaid methods, disclosed apparatus further employs single stage recycle procedures to simulate moving beds operation in confined closed loop in differential protocols; which comprise multiple modules sequentially connected, yet each functions independently and simultaneously feeding feed solution, isolating at least one desired component, recycling mobile phase, concentrating multiple isolated components, regenerating adsorbent, washing and sanitizing; apparatus further integrate additional sequential unit operation installing other type solid phase material within.

The field of chromatography, specifically the field of expanded bed chromatography. The invention is an expanded bed chromatography apparatus 1 which has an elongate tube 4 defining an operating volume 8 and having a central axis 7. The top end of the tube is sealed with a cap 2 having an exit port 3. The other end of the tube 4 is connected to a base 5. The base includes a process fluid inlet having a plurality of outlet apertures 10a, 10b, 10c in fluid communication with the operating volume of the tube and an inlet aperture 11 in fluid communication with the plurality of outlet apertures. Each of the plurality of outlet apertures is spaced radially from the central axis of the tube. In use, a mobile phase of process fluid passes up through a particulate media in the tube from the inlet to the exit port in a cap at the top of the apparatus. Target product is adsorbed onto the particulate media and is subsequently eluted from it. Alternatively, impurities are adsorbed on the particulate media and the target solution passes through the expanded bed for collection.

The present invention employs continuous ion exchange processes in binary configurations during the refinement of rare earth elements to convert an input stream of mixed rare earth elements into two or more separate streams of isolated rare earth elements. The present invention leverages the different chemical properties and behaviors of heavier and lighter REEs to separate them in continuous ion exchange devices. The present invention applies to any rare earth feed stream in aqueous solution that is relatively pure. Two-phase solid-liquid systems are used herein.

This invention relates generally to a process for selective adsorption and recovery of lithium from natural and synthetic brines, and more particular to a process for recovering lithium from a natural or synthetic brine solution by passing the brine solution through a lithium selective adsorbent in a continuous countercurrent adsorption and desorption circuit.

This invention relates generally to a process for selective adsorption and recovery of lithium from natural and synthetic brines, and more particular to a process for recovering lithium from a natural or synthetic brine solution by passing the brine solution through a lithium selective adsorbent in a continuous countercurrent adsorption and desorption circuit.

This invention relates generally to a process for selective adsorption and recovery of lithium from natural and synthetic brines, and more particular to a process for recovering lithium from a natural or synthetic brine solution by passing the brine solution through a lithium selective adsorbent in a continuous countercurrent adsorption and desorption circuit.

A multiport rotary valve assembly is disclosed for fluid control in processes such as direct lithium extraction. The assembly includes a valve body with a housing ring, upper and lower closure discs, and a process disc featuring distribution channels in a sealed arrangement with leak detection channels. Ancillary tanks or catch pots are fluidly connected to leak detection ports to collect process fluid leakage, preventing crossover, contamination, and recovery loss. The assembly operates within a continuous countercurrent adsorption and desorption (CCAD) circuit, which includes multiple process zones with adsorbent beds or columns for selective lithium recovery. The collected fluid can be analyzed and redirected to appropriate process zone(s) or other inlet, outlet, point, or location in the flow path of the CCAD circuit, enhancing recovery and product purity. Sensors, pressure regulation devices, and other instrumentation monitor and control fluid dynamics.