---
publication_id: "OT-2026-000000685"
title: "Multiple stage sorting"
published_at: "2026-09-15T19:03:15.303238Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000685"
categories:
  - "material-handling/sorting"
keywords:
  - "b07c5/3422"
  - "b07c2501/0054"
  - "b07c5/04"
  - "b07c5/34"
  - "b07c5/342"
---

# Multiple stage sorting

## Abstract

A material sorting system sorts materials utilizing multiple stages of classification and sorting, including a vision system that implements an artificial intelligence system in order to identify or classify each of the materials, and an x-ray fluorescence (“XRF”) system or Laser Induced Breakdown Spectroscopy to perform a subsequent classification and sorting of the remaining materials.