Patent · US Expired

Reduction of silver halides in photoemulsion using sodium borohydride and reducing sugars

US5372631A · kind A · utility

2Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 12, 1993
Grant dateDec 13, 1994
Priority date—
Expiry dateNov 12, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P10/20
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Photoemulsion is reduced with a combination of reducing sugar and sodium borohydride, resulting in increased silver recovery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.