EASILY CRUSHABLE ELECTRODEPOSITED COPPER - JX NIPPON MINING & METALS CORP

Title:

EASILY CRUSHABLE ELECTRODEPOSITED COPPER

Document Type and Number:

WIPO Patent Application WO/2023/095904

Kind Code:

A1

Abstract:

A highly pure electrodeposited copper comprising copper and unavoidable impurities, wherein the purity is at least 6N, the content of Ag included as an impurity is 0.2 ppm or less, the amount of included nonmetal inclusions with a particle size of 0.5-20 μm is 20,000/g or less, the average particle size in an electrodeposition cross section is in the range of 40-400 μm, the maximum particle size in the electrodeposition cross section is in the range of 300-2,700 μm, the average particle size in the electrodeposition surface is in the range of 25-150 μm, and the maximum particle size in the electrodeposition surface is in the range of 100-450 μm. As a result, the present invention provides a highly pure electrodeposited copper that has excellent crushability while suppressing the occurrence of lumps. (Selected drawing) FIG. 1B

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Inventors:

FUKUNARI AYAKA (JP)
HOSOKAWA YU (JP)

Application Number:

PCT/JP2022/043743

Publication Date:

June 01, 2023

Filing Date:

November 28, 2022

Export Citation:

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Assignee:

JX NIPPON MINING & METALS CORP (JP)

International Classes:

C22C9/00; C25C1/12

Foreign References:

JPH01152291A	1989-06-14
JPH06173063A	1994-06-21

Attorney, Agent or Firm:

AYAFUNE INTERNATIONAL PATENTS & TRADEMARKS PATENT PROFESSIONAL CORPORATION et al. (JP)

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