Tata Consultancy Services Limited

Shally Gupta

Beena Rai

Santosh Vasant Daware

Umesh Singh

Purushottham Gautham Basavarsu

Deepak Shyamsunder Jain

Shankar Balajirao Kausley

Chetan Premkumar Malhotra

Dharmendr Kumar

Amit Bhowmik

Pallavi Bandi

Rinu Chako

Dharmendra Kumar

Recovery of rare earth elements (REEs) from electronic wastes is a promising approach. The existing methods for separation of REE from the secondary sources are not economically viable and scalable. A method and system for separation of rare earth metals from a plurality of secondary sources has been provided. The magnet is obtained from the secondary sources which is then crushed to a coarser size. The powder is then demagnetized by heating and roasted at high temperature to obtain the metal oxides. The metals oxides are then dissolved by acid leaching to obtain leach liquor. Iron is removed from leach liquor by precipitation and separated by filtration. The individual REE is then separated by liquid-liquid extraction. The conditions in liquid-liquid extraction are adjusted such that only desired REE is separated. The extracted REE is then stripped out by acid. The individual rare earth element is then precipitated and dried.

Method and system for separation of rare earth elements from secondary sources

This disclosure relates generally to method and system for designing the formulated products. Conventional techniques for designing the formulated products, meeting final functional properties, are limited. Further, understanding user requirements and active incorporation of the user requirements during design phase is quite challenging. The present disclosure herein provides method and system that solve the technical problem of extracting the functional requirement by establishing continuous conversation with the user. An optimal prediction function for each functional requirement is determined by using a plurality of prediction models. An optimization technique along with an objective function is employed to determine optimized solutions comprising list of ingredients, possible concentration level of each ingredient, the process parameters, and the operating parameters for obtaining the desired formulation based on the user requirement.

Method and system for designing formulated products

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Pune, India

Shally Gupta