Title: Polysulfide intercalated layered double hydroxides for metal capture applications

Abstract

Polysulfide intercalated layered double hydroxides and methods for their use in vapor and liquid-phase metal capture applications are provided. The layered double hydroxides comprise a plurality of positively charged host layers of mixed metal hydroxides separated by interlayer spaces. Polysulfide anions are intercalated in the interlayer spaces.

Inventors:

Kanatzidis, Mercouri G.; Ma, Shulan

Issue Date:

2017-04-04

Research Org.:

Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1349735

Patent Number(s):

9610538

Application Number:

14/715,768

Assignee:

Northwestern University

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2257/602 - Mercury or mercury compounds
B01D2258/0283 - Flue gases
B01D53/02 - by adsorption, e.g. preparative gas chromatography {
B01D53/64 - Heavy metals or compounds thereof, e.g. mercury

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J20/0285 - {Sulfides of compounds other than those provided for in B01J20/045}
B01J20/08 - comprising aluminium oxide or hydroxide
B01J20/3085 - {Chemical treatments not covered by groups B01J20/3007 - B01J20/3078}

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F1/281 - {using inorganic sorbents}
C02F1/288 - {using composite sorbents, e.g. coated, impregnated, multi-layered}
C02F2101/006 - {Radioactive compounds}
C02F2101/20 - Heavy metals or heavy metal compounds

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DOE Contract Number:  

AC07-05ID14517

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 May 19

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY