Schlumberger Technology Corporation

Prasanna Nirgudkar

Rod W Shampine

Gary W Sams

Miguel Angel Lopez

Dominic Vincent Perroni

Florence Binet

Paul Muller

Ziyao Li

Wenlin Zhang

Described herein are methods of recovering lithium from dilute lithium sources. The methods include extracting lithium from an extraction feed using direct lithium extraction in an extraction stage to yield a lithium intermediate, performing one or more concentration operations, each concentration operation concentrating an input stream to yield an output feed, wherein the input stream is obtained from the lithium intermediate and/or the extraction feed is obtained from the output feed. At least one of the concentration operations includes a membrane separation operation having a plurality of reactors in series each having a semi-permeable membrane, such as a counter-flow reverse osmosis operation. Methods may also include generating a low TDS stream as a permeate from any of the one or more concentration operations, wherein the low TDS stream is recycled or used as fresh water.

Lithium recovery using aqueous sources

Described herein are methods of recovering lithium from dilute lithium sources. The methods include concentrating a dilute aqueous lithium source to yield an extraction feed having an extraction lithium concentration; extracting lithium from the extraction feed using direct lithium extraction in an extraction stage to yield a lithium intermediate; concentrating a stream obtained from the lithium intermediate in a concentration stage to yield a lithium concentrate; and converting lithium in the lithium concentrate to lithium hydroxide.

An energy efficient and environmentally benign lithium recovery process is described. The process comprises extracting lithium from the brine source using a ion withdrawal process to form a lithium extract; providing electricity for the extracting using an energy source; and recovering thermal energy from the energy source for use in the extracting.

Lithium recovery thermal management

A method can include receiving sensor data from a system; encoding the sensor data to a latent space representation via a trained encoder; generating a control action using the latent space representation; and issuing an instruction that corresponds to the control action for control of the system.

Growing community of inventors

Sugar Land, TX, United States of America

Prasanna Nirgudkar