Title: Preparation of amorphous sulfide sieves

Abstract

The present invention involves methods and compositions for synthesizing catalysts/porous materials. In some embodiments, the resulting materials are amorphous sulfide sieves that can be mass-produced for a variety of uses. In some embodiments, methods of the invention concern any suitable precursor (such as thiomolybdate salt) that is exposed to a high pressure pre-compaction, if need be. For instance, in some cases the final bulk shape (but highly porous) may be same as the original bulk shape. The compacted/uncompacted precursor is then subjected to an open-flow hot isostatic pressing, which causes the precursor to decompose and convert to a highly porous material/catalyst.

Inventors:

Siadati, Mohammad H.; Alonso, Gabriel; Chianelli, Russell R.

Issue Date:

2006-11-07

Research Org.:

Univ. of Texas, Austin, TX (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1175980

Patent Number(s):

7132386

Application Number:

10/819,480

Assignee:

Board of Regents, The University of Texas System (Austin, TX)

Patent Classifications (CPCs):

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

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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

B01J27/051 - Molybdenum
B01J27/0515 - {with iron group metals or platinum group metals}
B01J35/002 - {Catalysts characterised by their physical properties}
B01J35/1019 - {100-500 m2/g}
B01J35/1061 - {2-50 nm}
B01J35/109 - {bimodal}
B01J37/088 - {Decomposition of a metal salt}
B01J37/10 - in the presence of water, e.g. steam

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G39/006 - {Compounds containing, besides molybdenum, two or more other elements, with the exception of oxygen or hydrogen}
C01G39/06 - Sulfides
C01G41/00 - Compounds of tungsten
C01G41/006 - {Compounds containing, besides tungsten, two or more other elements, with the exception of oxygen or hydrogen}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2002/02 - Amorphous compounds
C01P2002/52 - containing elements as dopants
C01P2002/54 - one element only
C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram
C01P2002/88 - by thermal analysis data, e.g. TGA, DTA, DSC
C01P2004/03 - obtained by SEM
C01P2006/12 - Surface area
C01P2006/16 - Pore diameter
C01P2006/17 - Pore diameter distribution

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DOE Contract Number:  

FC04-01AL67097

Resource Type:

Patent

Resource Relation:

Patent File Date: 2004 Apr 07

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE