Title:
SEPARATION METHOD FOR STAINLESS STEEL AND PROCESSING METHOD FOR ELECTRICAL/ELECTRONIC COMPONENT SCRAPS
Document Type and Number:
WIPO Patent Application WO/2023/228912
Kind Code:
A1
Abstract:
Provided is: a separation method for stainless steel capable of efficiently separating stainless steel from electrical/electronic component scraps, in particular, crushed scraps obtained by subjecting electrical/electronic component scraps to a crushing processing; and a processing method for electrical/electronic component scraps. The separation method for stainless steel includes: a crushing step S2 for crushing electrical/electronic components; an air flow classification step S3 for classifying the crushed substance obtained in the crushing step by air flow and obtaining, as a heavy substance, excluded stones that include stainless steel; a coarse excluded stone sorting step S4 for sorting and collecting, from the excluded stones, coarse excluded stones having at least a predetermined size; and a first magnetic sorting step S6 for magnetically sorting coarse excluded stones and obtaining, as a magnetized substance, coarse excluded stones that include stainless steel, from the coarse excluded stones.
Inventors:
TAKEI TAKUMA (JP)
SASAOKA HIDETOSHI (JP)
TANABE KENTARO (JP)
SASAOKA HIDETOSHI (JP)
TANABE KENTARO (JP)
Application Number:
PCT/JP2023/019001
Publication Date:
November 30, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
JX METALS CORP (JP)
International Classes:
C22B7/00; B03B4/02; B03B9/06; B03C1/00; B03C1/005; B03C1/18; B03C1/24; B07B4/08; B07B7/083; B07B9/00; C22B1/00; C22B1/02
Domestic Patent References:
| WO2021157483A1 | 2021-08-12 | |||
| WO2019177176A1 | 2019-09-19 |
Foreign References:
| JP2021159794A | 2021-10-11 | |||
| JP2001232340A | 2001-08-28 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
Download PDF:
Previous Patent: NOVEL AGENT FOR IMPROVING RESILIENCE AND/OR BODY OF HAIR
Next Patent: ILLUMINATION DEVICE
Next Patent: ILLUMINATION DEVICE