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Recovery of sodium hydroxide and silica from zirconium oxide plant effluent of Nuclear Fuel Complex

Conference:

Abstract

Sodium hydroxide (lye) and silica can be recovered in pure form from the alkaline sodium silicate waste of Nuclear Fuel Complex, Hyderabad. Electrolytic method was used to amalgamate the sodium present in an electrolyser with flowing mercury as cathode and nickel as anode. The amalgam is then denuded with water in a graphite packed tower to recover mercury for recycling to the electrolyser and sodium hydroxide lye. Sodium hydroxide lye can be recycled in the zirconium oxide plant. Silica is recovered from the spent electrolyte by ion exchange method using cation exchange resin. Both the process details are described in this paper, with experimental data useful for the scale up. The process converts waste to value products. (author). 3 figs., 2 tabs.
Authors:
Bajpai, M B; Shenoi, M R.K.; Keni, V S [1] 
  1. Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai (India)
Publication Date:
Jun 01, 1994
Product Type:
Conference
Report Number:
CONF-9406439-
Reference Number:
SCA: 400201; 052001; PA: AIX-29:018152; EDB-98:052112; SN: 98001952210
Resource Relation:
Conference: ACE-94: advances in chemical engineering in nuclear and process industries, Mumbai (India), 9-11 Jun 1994; Other Information: DN: 3 figs., 2 tabs.; PBD: Jun 1994; Related Information: Is Part Of Advances in chemical engineering in nuclear and process industries; PB: 628 p.
Subject:
40 CHEMISTRY; 05 NUCLEAR FUELS; CHEMICAL EFFLUENTS; ELECTROLYSIS; FUEL FABRICATION PLANTS; MATERIALS RECOVERY; PILOT PLANTS; SILICON OXIDES; SODIUM HYDROXIDES; WASTE PROCESSING; ZIRCONIUM OXIDES
OSTI ID:
591987
Research Organizations:
Board of Research in Nuclear Sciences, Department of Atomic Energy, Mumbai (India).
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9800265018152
Submitting Site:
INIS
Size:
pp. 212-217
Announcement Date:
Jan 23, 2004

Conference:

Citation Formats

Bajpai, M B, Shenoi, M R.K., and Keni, V S. Recovery of sodium hydroxide and silica from zirconium oxide plant effluent of Nuclear Fuel Complex. India: N. p., 1994. Web.
Bajpai, M B, Shenoi, M R.K., & Keni, V S. Recovery of sodium hydroxide and silica from zirconium oxide plant effluent of Nuclear Fuel Complex. India.
Bajpai, M B, Shenoi, M R.K., and Keni, V S. 1994. "Recovery of sodium hydroxide and silica from zirconium oxide plant effluent of Nuclear Fuel Complex." India.
@misc{etde_591987,
title = {Recovery of sodium hydroxide and silica from zirconium oxide plant effluent of Nuclear Fuel Complex}
author = {Bajpai, M B, Shenoi, M R.K., and Keni, V S}
abstractNote = {Sodium hydroxide (lye) and silica can be recovered in pure form from the alkaline sodium silicate waste of Nuclear Fuel Complex, Hyderabad. Electrolytic method was used to amalgamate the sodium present in an electrolyser with flowing mercury as cathode and nickel as anode. The amalgam is then denuded with water in a graphite packed tower to recover mercury for recycling to the electrolyser and sodium hydroxide lye. Sodium hydroxide lye can be recycled in the zirconium oxide plant. Silica is recovered from the spent electrolyte by ion exchange method using cation exchange resin. Both the process details are described in this paper, with experimental data useful for the scale up. The process converts waste to value products. (author). 3 figs., 2 tabs.}
place = {India}
year = {1994}
month = {Jun}
}