公开(公告)号：US11525170B2

公开(公告)日：2022-12-13

申请号：US16799884

申请日：2020-02-25

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant Daware ,  Shally Gupta ,  Beena Rai

IPC: C22B59/00 ,  C22B1/00 ,  C22B1/02 ,  C22B7/00

Abstract: 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.

公开(公告)号：US11488226B2

公开(公告)日：2022-11-01

申请号：US16909845

申请日：2020-06-23

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant Daware ,  Rinu Chako ,  Deepak Shyamsunder Jain ,  Shankar Balajirao Kausley ,  Shally Gupta ,  Pallavi Bandi ,  Dharmendr Kumar ,  Beena Rai ,  Amit Bhowmik ,  Umesh Singh ,  Chetan Premkumar Malhotra ,  Purushottham Gautham Basavarsu

IPC: G06Q30/06 ,  G06K9/62 ,  G06N5/00 ,  G06Q30/02 ,  G06F16/2453 ,  G06F16/242

Abstract: 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.