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Title: Recovery of anhydrous hydrogen iodide

Abstract

Relatively dry hydrogen iodide can be recovered from a mixture of HI, I.sub.2 and H.sub.2 O. After the composition of the mixture is adjusted so that the amounts of H.sub.2 O and I.sub.2 do not exceed certain maximum limits, subjection of the mixture to superatmospheric pressure in an amount equal to about the vapor pressure of HI at the temperature in question causes distinct liquid phases to appear. One of the liquid phases contains HI and not more than about 1 weight percent water. Often the adjustment in the composition will include the step of vaporization, and the distinct layers appear following the increase in pressure of the vapor mixture. Adjustment in the composition may also include the addition of an extraction agent, such as H.sub.3 PO.sub.4, and even though the adjusted composition mixture contains a significant amount of such an agent, the creation of the distinct liquid phases is not adversely affected.

Inventors:
 [1];  [2];  [3]
  1. (San Diego, CA)
  2. (Del Mar, CA)
  3. (The Hague, NL)
Issue Date:
Research Org.:
GENERAL ATOMICS
OSTI Identifier:
864210
Patent Number(s):
4330374
Assignee:
General Atomic Company (San Diego, CA) OSTI
DOE Contract Number:  
AC02-80ET26225
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
recovery; anhydrous; hydrogen; iodide; relatively; dry; recovered; mixture; composition; adjusted; amounts; exceed; maximum; limits; subjection; superatmospheric; pressure; amount; equal; vapor; temperature; question; causes; distinct; liquid; phases; appear; contains; weight; percent; water; adjustment; step; vaporization; layers; following; increase; addition; extraction; agent; significant; creation; adversely; affected; amount equal; liquid phases; vapor mixture; weight percent; liquid phase; vapor pressure; atmospheric pressure; superatmospheric pressure; hydrogen iodide; adversely affect; mixture contains; percent water; adversely affected; significant amount; relatively dry; anhydrous hydrogen; dry hydrogen; /203/423/

Citation Formats

O'Keefe, Dennis R., McCorkle, Jr., Kenneth H., and de Graaf, Johannes D. Recovery of anhydrous hydrogen iodide. United States: N. p., 1982. Web.
O'Keefe, Dennis R., McCorkle, Jr., Kenneth H., & de Graaf, Johannes D. Recovery of anhydrous hydrogen iodide. United States.
O'Keefe, Dennis R., McCorkle, Jr., Kenneth H., and de Graaf, Johannes D. Fri . "Recovery of anhydrous hydrogen iodide". United States. https://www.osti.gov/servlets/purl/864210.
@article{osti_864210,
title = {Recovery of anhydrous hydrogen iodide},
author = {O'Keefe, Dennis R. and McCorkle, Jr., Kenneth H. and de Graaf, Johannes D.},
abstractNote = {Relatively dry hydrogen iodide can be recovered from a mixture of HI, I.sub.2 and H.sub.2 O. After the composition of the mixture is adjusted so that the amounts of H.sub.2 O and I.sub.2 do not exceed certain maximum limits, subjection of the mixture to superatmospheric pressure in an amount equal to about the vapor pressure of HI at the temperature in question causes distinct liquid phases to appear. One of the liquid phases contains HI and not more than about 1 weight percent water. Often the adjustment in the composition will include the step of vaporization, and the distinct layers appear following the increase in pressure of the vapor mixture. Adjustment in the composition may also include the addition of an extraction agent, such as H.sub.3 PO.sub.4, and even though the adjusted composition mixture contains a significant amount of such an agent, the creation of the distinct liquid phases is not adversely affected.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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