KR840007220A - 표면적이 큰 비스머스 함유 피로클로로(pyrochlores)의 제조방법 - Google Patents
표면적이 큰 비스머스 함유 피로클로로(pyrochlores)의 제조방법 Download PDFInfo
- Publication number
- KR840007220A KR840007220A KR1019830005155A KR830005155A KR840007220A KR 840007220 A KR840007220 A KR 840007220A KR 1019830005155 A KR1019830005155 A KR 1019830005155A KR 830005155 A KR830005155 A KR 830005155A KR 840007220 A KR840007220 A KR 840007220A
- Authority
- KR
- South Korea
- Prior art keywords
- carbonate
- dispersion
- reaction product
- producing
- group
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
- H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
- H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
- H01C17/06533—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component composed of oxides
- H01C17/0654—Oxides of the platinum group
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Conductive Materials (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (9)
- (a) BO2, Bi2O2CO3와 X가 0 보다 큰 경우에는 M의 탄산염의 미분쇄립의 초기혼합물을 Bi2O2CO3의 열분해온도 내지 650℃ 온도범위의 산화성 기류하에서 소성하여, Bi/B몰 비율이 1.4 : 1 이상인 Bi2O3, Bi2-xMxB2O7-z와 M 산화물로 구성되는 반응생성물을 제조하고, (b) 이 소성반응생성물을, 반응생성물 중의 거의 모든 Bi2O3와 M산화물이 존재하는 경우에는 이 산화물을 모두 용해하는데 충분한 시간동안 충분한 양의 무기산 희석용액에 분산시킨 분산액을 제조하며, 또 (c) 상기 산처리 반응생성물을 분산매질로부터 분리시키는 일련의 공정으로 구성되는 다음 일반식(Ⅰ)에 상응하는 피로클로르의 제조방법.
- Bi2-xMxB2O7-z(Ⅰ)
- 상기 일반식(Ⅰ)에서 M은 카드뮴, 구리, 납, 인듐, 가돌리늄, 은과 이들 혼합물로 구성되는 군으로 부터 선정되며, B는 루테늄, 이리듐 및 이들 혼합물로 구성되는 군으로부터 선정되고, X는 0 내지 0.5이며, 또 Z는 0 내지 1이다.
- 제1항에 있어서, Bi/B몰 비율이 4:1 이상인 피로클로르의 제조방법.
- 제1항에 있어서, (a) BiX3와 또 X가 0보다 큰 경우는 X가 질산염, 염화염 또는 이들 혼합물로 구성되는 군에서 선정되고, 또 m이 M의 원자가인 MXm의 산성수용액중에 BO2의 미분쇄립을 분산시킨 분산액을 제조하고, (b) 이 분산액에 분산속도를 증대시키기 위해 교반하면서 탄산나트륨, 탄산칼륨과 M이 구리가 아닌 경우는 탄산암모늄과 이들의 혼합물로 구성되는 군에서선정한 탄산알카리 수용액을 첨가하되 이때 알카리탄산염의 양을 용액중의 거의 모든 Bi와 M을 침전시키는데 충분한 양으로 하여, 전분산액 중의 Bi2O2CO3와 M 탄산염의 미분쇄립을 침전시키고, 또 (c) 이 분산액을 탈수시킴으로서 Bi2O2CO3와 M 탄산염의 미분쇄립 초기 혼합물을 수득하는 피로클로르의 제조방법.
- 제1항에 있어서, B가 루테늄인 피로클로르의 제조방법.
- 제3항에 있어서, 알카리 탄산염이 탄산나트륨인 피로클로르의 제조방법.
- 제4항에 있어서, X와 Z가 0인 피로클로르의 제조방법.
- ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/438,717 US4420422A (en) | 1982-11-01 | 1982-11-01 | Method for making high surface area bismuth-containing pyrochlores |
US438717 | 1989-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840007220A true KR840007220A (ko) | 1984-12-06 |
KR870000364B1 KR870000364B1 (ko) | 1987-03-06 |
Family
ID=23741737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019830005155A KR870000364B1 (ko) | 1982-11-01 | 1983-10-31 | 표면적이 큰 비스머스 함유 피로클로르(pyrochlores)의 제조방법 |
Country Status (9)
Country | Link |
---|---|
US (1) | US4420422A (ko) |
EP (1) | EP0110167B1 (ko) |
JP (1) | JPS5997524A (ko) |
KR (1) | KR870000364B1 (ko) |
CA (1) | CA1192020A (ko) |
DE (1) | DE3362040D1 (ko) |
DK (1) | DK155630C (ko) |
GR (1) | GR78741B (ko) |
IE (1) | IE56320B1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1272011A (en) * | 1984-08-29 | 1990-07-31 | William R. Bushey | Process for forming solid solutions |
DE3914844A1 (de) * | 1989-05-05 | 1990-11-08 | Heraeus Gmbh W C | Pyrochlorverwandte oxide und sie enthaltende widerstandsmassen |
DE3941283C1 (ko) * | 1989-12-14 | 1991-01-31 | W.C. Heraeus Gmbh, 6450 Hanau, De | |
DE4127845C1 (ko) * | 1991-08-22 | 1992-11-19 | W.C. Heraeus Gmbh, 6450 Hanau, De | |
JPH0540312U (ja) * | 1991-10-30 | 1993-06-01 | 積水樹脂株式会社 | 道路用視線誘導標識 |
US5518663A (en) * | 1994-12-06 | 1996-05-21 | E. I. Du Pont De Nemours And Company | Thick film conductor compositions with improved adhesion |
US6480093B1 (en) * | 2000-01-26 | 2002-11-12 | Yang-Yuan Chen | Composite film resistors and method of making the same |
US7749321B2 (en) * | 2007-06-28 | 2010-07-06 | E. I. Du Pont De Nemours And Company | Black pigment compositions, thick film black pigment compositions, conductive single layer thick film compositions, and black and conductive electrodes formed therefrom |
TWI451905B (zh) * | 2013-01-25 | 2014-09-11 | Univ Nat Chiao Tung | 乙醇重組器觸媒組成物及乙醇重組器觸媒之製備方法 |
WO2015037395A1 (ja) * | 2013-09-12 | 2015-03-19 | 信越化学工業株式会社 | シンチレータ材料、放射線検出器及び放射線検査装置 |
JP6740829B2 (ja) * | 2016-09-12 | 2020-08-19 | 住友金属鉱山株式会社 | 二酸化ルテニウム粉末とその製造方法、厚膜抵抗体ペースト、及び、厚膜抵抗体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583931A (en) * | 1969-11-26 | 1971-06-08 | Du Pont | Oxides of cubic crystal structure containing bismuth and at least one of ruthenium and iridium |
US4129525A (en) * | 1977-12-02 | 1978-12-12 | Exxon Research & Engineering Co. | Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium |
US4192780A (en) * | 1977-12-02 | 1980-03-11 | Exxon Research & Engineering Co. | Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium and a reaction enhancing anodic potential |
US4203871A (en) * | 1977-12-02 | 1980-05-20 | Exxon Research & Engineering Co. | Method of making lead and bismuth ruthenate and iridate pyrochlore compounds |
US4176094A (en) * | 1977-12-02 | 1979-11-27 | Exxon Research & Engineering Co. | Method of making stoichiometric lead and bismuth pyrochlore compounds using an alkaline medium |
US4124539A (en) * | 1977-12-02 | 1978-11-07 | Exxon Research & Engineering Co. | Pb2 [M2-x Pbx ]O7-y compounds wherein M is Ru, Ir or mixtures thereof, and method of preparation |
US4163706A (en) * | 1977-12-02 | 1979-08-07 | Exxon Research & Engineering Co. | Bi2 [M2-x Bix ]O7-y compounds wherein M is Ru, Ir or mixtures thereof, and electrochemical devices containing same (Bat-24) |
US4225469A (en) * | 1978-11-01 | 1980-09-30 | Exxon Research & Engineering Co. | Method of making lead and bismuth pyrochlore compounds using an alkaline medium and at least one solid reactant source |
US4302362A (en) * | 1979-01-23 | 1981-11-24 | E. I. Du Pont De Nemours And Company | Stable pyrochlore resistor compositions |
-
1982
- 1982-11-01 US US06/438,717 patent/US4420422A/en not_active Expired - Fee Related
-
1983
- 1983-10-27 JP JP58200107A patent/JPS5997524A/ja active Granted
- 1983-10-28 IE IE2535/83A patent/IE56320B1/xx unknown
- 1983-10-29 DE DE8383110855T patent/DE3362040D1/de not_active Expired
- 1983-10-29 EP EP83110855A patent/EP0110167B1/en not_active Expired
- 1983-10-31 GR GR72830A patent/GR78741B/el unknown
- 1983-10-31 KR KR1019830005155A patent/KR870000364B1/ko not_active IP Right Cessation
- 1983-10-31 DK DK499083A patent/DK155630C/da not_active IP Right Cessation
- 1983-11-01 CA CA000440179A patent/CA1192020A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0110167A1 (en) | 1984-06-13 |
DK499083D0 (da) | 1983-10-31 |
IE832535L (en) | 1984-05-01 |
DE3362040D1 (en) | 1986-03-13 |
DK155630C (da) | 1989-09-18 |
DK499083A (da) | 1984-05-02 |
JPS5997524A (ja) | 1984-06-05 |
JPH0232206B2 (ko) | 1990-07-19 |
DK155630B (da) | 1989-04-24 |
EP0110167B1 (en) | 1986-01-29 |
US4420422A (en) | 1983-12-13 |
KR870000364B1 (ko) | 1987-03-06 |
GR78741B (ko) | 1984-10-02 |
IE56320B1 (en) | 1991-06-19 |
CA1192020A (en) | 1985-08-20 |
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