Process and composition for drying of gaseous hydrogen halides
Abstract
A process for drying a gaseous hydrogen halide of the formula HX, wherein X is selected from the group consisting of bromine, chlorine, fluorine, and iodine, to remove water impurity therefrom, comprising: contacting the water impurity-containing gaseous hydrogen halide with a scavenger including a support having associated therewith one or more members of the group consisting of: (a) an active scavenging moiety selected from one or more members of the group consisting of: (i) metal halide compounds dispersed in the support, of the formula MX.sub.y ; and (ii) metal halide pendant functional groups of the formula -MX.sub.y-1 covalently bonded to the support, wherein M is a y-valent metal, and y is an integer whose value is from 1 to 3; (b) corresponding partially or fully alkylated compounds and/or pendant functional groups, of the metal halide compounds and/or pendant functional groups of (a); wherein the alkylated compounds and/or pendant functional groups, when present, are reactive with the gaseous hydrogen halide to form the corresponding halide compounds and/or pendant functional groups of (a); and M being selected such that the heat of formation, .DELTA.H.sub.f of its hydrated halide, MX.sub.y.(H.sub.2 O).sub.n, is governed by the relationship: .DELTA.H.sub.f .gtoreq.n.times.10.1 kilocalories/mole of such hydrated halidemore »
- Inventors:
-
- New Milford, CT
- Wilton, CT
- Issue Date:
- Research Org.:
- ADVANCED TECHNOLOGY MATERIALS
- OSTI Identifier:
- 867058
- Patent Number(s):
- 4853148
- Application Number:
- 07/029,631
- Assignee:
- Advanced Technology Materials, Inc. (New Milford, CT)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- AC01-87ER80469
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; composition; drying; gaseous; hydrogen; halides; halide; formula; hx; selected; consisting; bromine; chlorine; fluorine; iodine; remove; water; impurity; therefrom; comprising; contacting; impurity-containing; scavenger; including; support; associated; therewith; active; scavenging; moiety; metal; compounds; dispersed; mx; ii; pendant; functional; -mx; y-1; covalently; bonded; y-valent; integer; value; corresponding; partially; alkylated; reactive; form; heat; formation; delta; hydrated; governed; relationship; gtoreq; times; 10; kilocalories; mole; compound; molecules; bound; hydrate; disclosed; appertaining; apparatus; deployed; bed; hydrogen halides; gaseous hydrogen; hydrogen halide; metal halide; containing gas; remove water; covalently bonded; associated therewith; scavenger composition; moiety selected; water molecules; formula mx; halide compound; move water; containing gaseous; /252/34/423/
Citation Formats
Tom, Glenn M, and Brown, Duncan W. Process and composition for drying of gaseous hydrogen halides. United States: N. p., 1989.
Web.
Tom, Glenn M, & Brown, Duncan W. Process and composition for drying of gaseous hydrogen halides. United States.
Tom, Glenn M, and Brown, Duncan W. Tue .
"Process and composition for drying of gaseous hydrogen halides". United States. https://www.osti.gov/servlets/purl/867058.
@article{osti_867058,
title = {Process and composition for drying of gaseous hydrogen halides},
author = {Tom, Glenn M and Brown, Duncan W},
abstractNote = {A process for drying a gaseous hydrogen halide of the formula HX, wherein X is selected from the group consisting of bromine, chlorine, fluorine, and iodine, to remove water impurity therefrom, comprising: contacting the water impurity-containing gaseous hydrogen halide with a scavenger including a support having associated therewith one or more members of the group consisting of: (a) an active scavenging moiety selected from one or more members of the group consisting of: (i) metal halide compounds dispersed in the support, of the formula MX.sub.y ; and (ii) metal halide pendant functional groups of the formula -MX.sub.y-1 covalently bonded to the support, wherein M is a y-valent metal, and y is an integer whose value is from 1 to 3; (b) corresponding partially or fully alkylated compounds and/or pendant functional groups, of the metal halide compounds and/or pendant functional groups of (a); wherein the alkylated compounds and/or pendant functional groups, when present, are reactive with the gaseous hydrogen halide to form the corresponding halide compounds and/or pendant functional groups of (a); and M being selected such that the heat of formation, .DELTA.H.sub.f of its hydrated halide, MX.sub.y.(H.sub.2 O).sub.n, is governed by the relationship: .DELTA.H.sub.f .gtoreq.n.times.10.1 kilocalories/mole of such hydrated halide compound wherein n is the number of water molecules bound to the metal halide in the metal halide hydrate. Also disclosed is an appertaining scavenger composition and a contacting apparatus wherein the scavenger is deployed in a bed for contacting with the water impurity-containing gaseous hydrogen halide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1989},
month = {Tue Aug 01 00:00:00 EDT 1989}
}