The recovery of gold from waste integrated circuit (IC) chips

Date

10-1994

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Elizabeth T. Tan

Abstract

Gold was recovered from waste integrated circuit chips. The method involved series of acid treatments, solvent extraction and evaporation. The concentrations of gold were analyzed by UV spectrophotometry at 245 nm and were found to be (5.6 ± 0.4) x 10-3, (9.2 ± 0.4) x 10-3, and (2.74 ± 0.12) x 10-2 M for monolithic, hybrid, and film IC chips, respectively. Mean gold content o the three types of IC chips were (1.14 ± 0.08) x 10-3, (2.31 ± 0.10) x 10-3, and (7.29 ± 0.30) x 10-3 g Au per g sample of monolithic, hybrid and film chips, respectively. Overall, the film IC chips contained the highest amount of gold among the different types of chips.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1994 C4 M36

Document Type

Thesis

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