Solids formation on filtrate neutralization

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Description

The Separations Technology Laboratory was requested to study what happens when a filtrate solution, which will be a F B-Line product, is neutralized with sodium hydroxide. The primary concern was the formation of solids that could cause damage in pump seals, resulting in their failure. The results of these experiments indicate that under process conditions, granular, crystalline sodium fluoride will be produced by rapid neutralization of the filtrate solution with 50% NaOH plus a 25 volume percent excess. Postprecipitation of sodium oxalate-sodium fluoride and its accumulation can occur over a three-week storage period of the neutralized filtrate. Such solids could ... continued below

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16 p.

Creation Information

Holcomb, H.P. May 26, 1988.

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Description

The Separations Technology Laboratory was requested to study what happens when a filtrate solution, which will be a F B-Line product, is neutralized with sodium hydroxide. The primary concern was the formation of solids that could cause damage in pump seals, resulting in their failure. The results of these experiments indicate that under process conditions, granular, crystalline sodium fluoride will be produced by rapid neutralization of the filtrate solution with 50% NaOH plus a 25 volume percent excess. Postprecipitation of sodium oxalate-sodium fluoride and its accumulation can occur over a three-week storage period of the neutralized filtrate. Such solids could pose operational problems from pump seal abrasion and potential failure caused by them.

Physical Description

16 p.

Notes

OSTI as DE99002876

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  • Other Information: PBD: 26 May 1988

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  • Other: DE99002876
  • Report No.: DPSP--88-272-61
  • Grant Number: AC09-89SR18035;AC09-76SR00001
  • DOI: 10.2172/353204 | External Link
  • Office of Scientific & Technical Information Report Number: 353204
  • Archival Resource Key: ark:/67531/metadc685681

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • May 26, 1988

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Dec. 3, 2015, 10:59 p.m.

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Holcomb, H.P. Solids formation on filtrate neutralization, report, May 26, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc685681/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.