WO1999003627B1 - A composition comprising a metal salt and metal powder therefrom by the calcining thereof - Google Patents
A composition comprising a metal salt and metal powder therefrom by the calcining thereofInfo
- Publication number
- WO1999003627B1 WO1999003627B1 PCT/US1998/012306 US9812306W WO9903627B1 WO 1999003627 B1 WO1999003627 B1 WO 1999003627B1 US 9812306 W US9812306 W US 9812306W WO 9903627 B1 WO9903627 B1 WO 9903627B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- polyol
- coagulating agent
- weight percent
- oxyethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Abstract
Disclosed is a composition of an essentially solid phase state having as components, a liquid hydrophilic organic polymer, an aqueous salt solution containing at least one metallic or metalloid element, and a coagulating agent. The composition on calcination provides a metal-containing powder having an average particle size of 1 micrometer or less. Such metal-containing powders are of value in the preparation of industrial catalysts, ceramics, electronic components, or as fillers in plastics, paints or cosmetics.
Claims
1. A composition with as components:
a) a liquid polyether polyol; and
b) an aqueous salt solution containing at least one metallic or metalloid element;
characterized in that the composition further comprises (c) a coagulating agent, in an amount sufficient to cause the composition of the polyol, salt solution and coajulating agent to solidify and wherein the salt is present in an amount to provide the composition with metallic or metalloid element content of at least 1 weight percent based on total weight of the composition.
2. The composition of Claim 1 wherein the polyether polyol is a poly(oxyalκylene-oxyethyiene) polyol.
3. The composition of Claim 2 wherein the poly(oxyalkyiene- oxyethylene) polyol has an oxyethylene content of at least 35 weight percent based on total weight of the polyol and said oxyethylene of the polyoi is distributed randomly throughout the polyol.
4. The composition of Claim 1 wherein the salt is present in an amount to provide a metallic or metalloid element content of at least 5 weight percent.
5. The composition of Claim 1 wherein the metallic or metalloid element comprises lanthanum, barium, strontium, chromium, zirconium, yttrium, aluminum, lithium, iron, antimony, bismuth, lead, calcium, magnesium, copper, boron, cadmium, cesium, cerium, dysprosium, erbium, europium, gold, hafnium, holmium, lutetium, mercury, molybdenum, niobium, osmium, palladium, platinum, praseodymium, rhenium, rhodium, rubidium, ruthenium, samarium, scandium, sodium, tantalum, thorium, thulium, tin, zinc, nickel, titanium, tungsten, uranium, vanadium, ytterbium, or combinations of two or more of thereof.
6. The composition of Claim 1 wherein the coagulating agent is an organic or inorganic substance having an aqueous pH value greater than 7.
7. The composition of Claim 6 wherein the coagulating agent is an organic substance which comprises a primary or secondary, amine, amide or alkanolamine.
8. The composition of Claim 1 wherein the inorganic base is ammonium hydroxide.
9. The composition of Claim 1 wherein the coagulating agent is an organic or inorganic substance having an aqueous pH value of less than 7.
10. The composition of Claim 9 wherein the coagulating agent is hydrogen sulfide.
11. A process for preparing a metal-based powder having a mean particle size of less than 1 micrometer consisting essentially of:
a. mixing, under high shear conditions,
(1 ) liquid hydrophilic organic polymer,
(2) aqueous salt solution containing at least one metallic or metalloid element in an amount such that it constitutes at least 5 weight percent of the total of the liquid hydrophilic organic polymer, the salt solution and the coagulating agent, and
(3) an amount of a coagulating agent effective to cause the mixture so obtained to solidify;
b. calcining the solid mixture obtained in step (a); and
c. recovering the metal containing powder formed thereby, said powder having a mean particle size of less than 1 micrometer.
12. The process of Claim 11 wherein the metal containing powder is recovered in a yield of at least 10 weight percent.
13. The process of Claim 11 wherein the metal containing powder has average particle size of less than 0.1 micrometer and a BET surface area of at least 25 m2/gram.
14. The process of Claim 11 wherein the hydrophilic organic polymer is a poly(oxyalkylene-oxyethylene) polyol that has a randomly distributed oxyethylene content of at least 35 weight percent based on total weight of the polyol; and wherein the coagulating agent is an alkanolamine.
15. The process of Claim 11 wherein the hydrophilic organic polymer is a poly(oxyalkylene-oxyethylene) polyol that has randomly distributed oxyethylene content of at least 35 weight percent based on total weight of the polyol; and wherein the coagulating agent is ammonium hydroxide.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000502907A JP2001510237A (en) | 1997-07-18 | 1998-06-12 | Composition containing metal salt and metal powder obtained by calcining the composition |
| KR1020007000537A KR20010021972A (en) | 1997-07-18 | 1998-06-12 | A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| AT98932749T ATE214989T1 (en) | 1997-07-18 | 1998-06-12 | COMPOSITION CONTAINING A METAL SALT AND METAL POWDER PRODUCED BY FIRING THIS COMPOSITION |
| BR9810720-8A BR9810720A (en) | 1997-07-18 | 1998-06-12 | Composition having as components a liquid polyether polyol and an aqueous saline solution containing at least one metallic or metalloid element and process for preparing a metal based powder |
| DE69804462T DE69804462T2 (en) | 1997-07-18 | 1998-06-12 | COMPOSITION THAT CONTAINS METAL SALT AND METAL POWDER PRODUCED BY BURNING THIS COMPOSITION |
| AU82561/98A AU731338B2 (en) | 1997-07-18 | 1998-06-12 | A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| EP98932749A EP0998363B1 (en) | 1997-07-18 | 1998-06-12 | A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| CA002296082A CA2296082A1 (en) | 1997-07-18 | 1998-06-12 | A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/896,774 US5998523A (en) | 1997-07-18 | 1997-07-18 | Composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| US08/896,774 | 1997-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1999003627A1 WO1999003627A1 (en) | 1999-01-28 |
| WO1999003627B1 true WO1999003627B1 (en) | 1999-03-04 |
Family
ID=25406809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1998/012306 Ceased WO1999003627A1 (en) | 1997-07-18 | 1998-06-12 | A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US5998523A (en) |
| EP (1) | EP0998363B1 (en) |
| JP (1) | JP2001510237A (en) |
| KR (1) | KR20010021972A (en) |
| CN (1) | CN1264329A (en) |
| AR (1) | AR013232A1 (en) |
| AT (1) | ATE214989T1 (en) |
| AU (1) | AU731338B2 (en) |
| BR (1) | BR9810720A (en) |
| CA (1) | CA2296082A1 (en) |
| CO (1) | CO5040100A1 (en) |
| DE (1) | DE69804462T2 (en) |
| ES (1) | ES2174456T3 (en) |
| PL (1) | PL338083A1 (en) |
| TR (1) | TR200000091T2 (en) |
| TW (1) | TW432008B (en) |
| WO (1) | WO1999003627A1 (en) |
| ZA (1) | ZA986370B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA200101050B (en) * | 1998-08-19 | 2001-10-18 | Dow Chemical Co | Process for preparing nanosize metal oxide powders. |
| US6375704B1 (en) † | 1999-05-12 | 2002-04-23 | Cabot Corporation | High capacitance niobium powders and electrolytic capacitor anodes |
| CA2309575A1 (en) * | 2000-05-26 | 2001-11-26 | James E. Guillet | Internally cross-linked macromolecules |
| US6844026B2 (en) * | 2001-02-12 | 2005-01-18 | Rhodia Chimie | Preparation of particles by hydrolysis of a metal cation in the presence of a polymer |
| BR0209232B1 (en) | 2001-04-23 | 2011-07-26 | Method for sealing channels in a ceramic hive. | |
| US6664018B2 (en) | 2002-04-23 | 2003-12-16 | Xerox Corporation | In-situ method of forming zinc stearate dispersion and use thereof in toners |
| US7507480B2 (en) * | 2005-05-31 | 2009-03-24 | Brookhaven Science Associates, Llc | Corrosion-resistant metal surfaces |
| JP4839689B2 (en) * | 2005-06-16 | 2011-12-21 | 昭栄化学工業株式会社 | Silver ultrafine particle production method, silver powder, and silver ultrafine particle dispersion |
| EP2046696B1 (en) | 2006-07-21 | 2011-05-11 | Dow Global Technologies LLC | Imroved diesel particulate filter |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA835993A (en) * | 1970-03-03 | M. Kolyer John | Polymerization of lactams | |
| US3325698A (en) * | 1964-01-15 | 1967-06-13 | Gen Electric | Electrical capacitor electrode and method of making the same |
| US3510323A (en) * | 1965-10-21 | 1970-05-05 | Ppg Industries Inc | Heat resistant inorganic foams and their method of manufacture |
| GB1226553A (en) * | 1967-06-27 | 1971-03-31 | ||
| JPS5024968B1 (en) * | 1969-07-26 | 1975-08-20 | ||
| US4367259A (en) * | 1981-07-27 | 1983-01-04 | W. R. Grace & Co. | Sound deadening material |
| FR2521887A1 (en) * | 1982-02-24 | 1983-08-26 | Comp Generale Electricite | PROCESS FOR PREPARING A POROUS METAL BODY |
| JPS5983972A (en) * | 1982-11-02 | 1984-05-15 | 日本特殊陶業株式会社 | Manufacture of ceramic porous body |
| US4442175A (en) * | 1983-01-27 | 1984-04-10 | Corning Glass Works | Cellular ceramic bodies and method making same |
| JPS60215586A (en) * | 1984-04-10 | 1985-10-28 | 積水化成品工業株式会社 | Manufacture of titanate porous body |
| JPS60239376A (en) * | 1984-05-11 | 1985-11-28 | 東洋ゴム工業株式会社 | Manufacture of porous ceramic moldings |
| JPS6121960A (en) * | 1984-07-10 | 1986-01-30 | 日産自動車株式会社 | Ceramic injection moldings |
| JPS62158173A (en) * | 1985-06-19 | 1987-07-14 | 三洋化成工業株式会社 | Manufacture of ceramic structure |
| JP2515098B2 (en) * | 1986-04-23 | 1996-07-10 | 永和化成工業株式会社 | Method for manufacturing ceramic foam |
| US4778671A (en) * | 1986-07-14 | 1988-10-18 | Corning Glass Works | Preparation of unagglomerated metal oxide particles with uniform particle size |
| DE3724156A1 (en) * | 1987-07-22 | 1989-02-02 | Norddeutsche Affinerie | METHOD FOR PRODUCING METALLIC OR CERAMIC HOLLOW BALLS |
| US4929433A (en) * | 1987-10-22 | 1990-05-29 | Alfred University | Method for the preparation of sinterable nitrides |
| JPH04507230A (en) * | 1988-06-09 | 1992-12-17 | バテル メモリアル インスティテュート | Ceramic powder and thin film of metal oxide and method for producing the ceramic powder and thin film |
| GB8909730D0 (en) * | 1989-04-27 | 1989-06-14 | Ici Plc | Inorganic particles |
| JPH03124404A (en) * | 1989-10-11 | 1991-05-28 | Toshiba Corp | Production of ceramics product |
| JP2958037B2 (en) * | 1990-03-01 | 1999-10-06 | 旭光学工業株式会社 | Method for producing porous ceramic granules |
| US5102836A (en) * | 1990-06-06 | 1992-04-07 | Center For Innovative Technology | Ceramic materials with low thermal conductivity and low coefficients of thermal expansion |
| US5188780A (en) * | 1991-04-18 | 1993-02-23 | Regents Of The University Of California | Method for preparation of dense ceramic products |
| US5202306A (en) * | 1991-09-18 | 1993-04-13 | The United States Of America As Represented By The United States Department Of Energy | Fracture toughness for copper oxide superconductors |
| US5240493A (en) * | 1992-01-16 | 1993-08-31 | Institute Of Gas Technology | Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam |
| US5338334A (en) * | 1992-01-16 | 1994-08-16 | Institute Of Gas Technology | Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam |
| JPH0797566A (en) * | 1993-08-02 | 1995-04-11 | Tokai Rubber Ind Ltd | Liquid chemical for waterstop work |
| US5698483A (en) * | 1995-03-17 | 1997-12-16 | Institute Of Gas Technology | Process for preparing nanosized powder |
-
1997
- 1997-07-18 US US08/896,774 patent/US5998523A/en not_active Expired - Fee Related
-
1998
- 1998-06-12 AU AU82561/98A patent/AU731338B2/en not_active Ceased
- 1998-06-12 TR TR2000/00091T patent/TR200000091T2/en unknown
- 1998-06-12 CA CA002296082A patent/CA2296082A1/en not_active Abandoned
- 1998-06-12 EP EP98932749A patent/EP0998363B1/en not_active Expired - Lifetime
- 1998-06-12 WO PCT/US1998/012306 patent/WO1999003627A1/en not_active Ceased
- 1998-06-12 AT AT98932749T patent/ATE214989T1/en not_active IP Right Cessation
- 1998-06-12 KR KR1020007000537A patent/KR20010021972A/en not_active Withdrawn
- 1998-06-12 DE DE69804462T patent/DE69804462T2/en not_active Expired - Fee Related
- 1998-06-12 CN CN98807349A patent/CN1264329A/en active Pending
- 1998-06-12 ES ES98932749T patent/ES2174456T3/en not_active Expired - Lifetime
- 1998-06-12 BR BR9810720-8A patent/BR9810720A/en active Search and Examination
- 1998-06-12 JP JP2000502907A patent/JP2001510237A/en active Pending
- 1998-06-12 PL PL98338083A patent/PL338083A1/en unknown
- 1998-07-17 AR ARP980103506A patent/AR013232A1/en unknown
- 1998-07-17 CO CO98040962A patent/CO5040100A1/en unknown
- 1998-07-17 ZA ZA9806370A patent/ZA986370B/en unknown
- 1998-07-17 TW TW087111701A patent/TW432008B/en active
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