CM-PATRACritical Minerals Patent and Technology Research Analytics

CM-PATRA / record

Sequential extraction of metals from printed circuit boards by hydrometallurgical route using the same acid

Filed / published / granted
2019-08-20 / 2020-03-05 / n/a
Offices
WO
Applicants
IIT Madras (IN, academic)
Minerals
Copper, Tin, Zinc / Lead (not on list)
Stages
Recycling / secondary sources, Hydrometallurgy (leaching, solvent extraction)
Waste stream
E-waste and electronic scrap
CPC
C22B25/06, C22B15/0073, C22B13/045, C22B7/007, C22B3/22
Abstract (first 170 chars)
The present invention relates to a method of extraction of metals from printed circuit boards of electronic devices in an environmentally friendly and economical process.

Funded projects that may be related

  • Online estimation of gold, copper, platinum, palladium and silver content in recyclable PCBs through vision sensor and deep learning based image processing. · SNTMOM/1341/2024 · mineral: Copper; waste stream: E-waste and electronic scrap

Candidate link: the patent family and the R&D project name at least one India-list mineral in common, and they also share a waste stream or at least two content words in their English titles (mineral names and common words such as process, method, recovery are ignored). Up to five best matches are shown per project. Links are computed by rule, not confirmed with the project team or the applicant.

Why it is labelled this way

Decided by cpc-rules: Matched copper, tin, zinc-lead by CPC.

Source: Google Patents Public Data (BigQuery), CC BY 4.0.