ZA9410256B - Composition precursor and mixed cerium and zirconium oxide-based composition and procedure for preparation and use thereof - Google Patents

Composition precursor and mixed cerium and zirconium oxide-based composition and procedure for preparation and use thereof

Info

Publication number
ZA9410256B
ZA9410256B ZA9410256A ZA9410256A ZA9410256B ZA 9410256 B ZA9410256 B ZA 9410256B ZA 9410256 A ZA9410256 A ZA 9410256A ZA 9410256 A ZA9410256 A ZA 9410256A ZA 9410256 B ZA9410256 B ZA 9410256B
Authority
ZA
South Africa
Prior art keywords
composition
pct
zirconium oxide
precursor
procedure
Prior art date
Application number
ZA9410256A
Other languages
English (en)
Inventor
Lionel Bonneau
Thierry Chopin
Olivier Touret
Gabriel Vilmin
Original Assignee
Rhone Poulenc Chimie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9454362&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA9410256(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of ZA9410256B publication Critical patent/ZA9410256B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224—Oxides or hydroxides of lanthanides
    • C01F17/235—Cerium oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C01P2006/13—Surface area thermal stability thereof at high temperatures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/16—Pore diameter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glass Compositions (AREA)
ZA9410256A 1993-12-24 1994-12-22 Composition precursor and mixed cerium and zirconium oxide-based composition and procedure for preparation and use thereof ZA9410256B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9315605A FR2714370B1 (fr) 1993-12-24 1993-12-24 Précurseur d'une composition et composition à base d'un oxyde mixte de cérium et de zirconium, procédé de préparation et utilisation.

Publications (1)

Publication Number Publication Date
ZA9410256B true ZA9410256B (en) 1996-02-06

Family

ID=9454362

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9410256A ZA9410256B (en) 1993-12-24 1994-12-22 Composition precursor and mixed cerium and zirconium oxide-based composition and procedure for preparation and use thereof

Country Status (15)

Country Link
US (1) US5908800A (de)
EP (1) EP0735984B1 (de)
JP (1) JP3016865B2 (de)
KR (1) KR100354470B1 (de)
CN (1) CN1039804C (de)
AT (1) ATE163905T1 (de)
AU (1) AU692207B2 (de)
BR (1) BR9408361A (de)
CA (1) CA2178834C (de)
DE (1) DE69409006C5 (de)
ES (1) ES2117394T3 (de)
FI (1) FI107799B (de)
FR (1) FR2714370B1 (de)
WO (1) WO1995018068A1 (de)
ZA (1) ZA9410256B (de)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736343B1 (fr) * 1995-07-03 1997-09-19 Rhone Poulenc Chimie Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation
DE69728341T2 (de) * 1996-10-07 2004-12-30 Kabushiki Kaisha Toyota Chuo Kenkyusho Verbundoxid, Verbundoxidträger und Katalysator
US6506705B2 (en) 1996-12-06 2003-01-14 Rhodia Chimie Composition based on cerium oxide or on cerium and zirconium oxides, in the extruded form, process for the preparation thereof and use thereof as catalyst
FR2756819B1 (fr) * 1996-12-06 1999-02-19 Rhodia Chimie Sa Composition a base d'oxyde de cerium ou d'oxydes de cerium et de zirconium, sous forme extrudee, son procede de preparation et son utilisation comme catalyseur
JP4029233B2 (ja) * 1998-05-11 2008-01-09 第一稀元素化学工業株式会社 セリウム−ジルコニウム系複合酸化物及びその製造方法ならびに排ガス浄化用触媒材料
JP2000167402A (ja) * 1998-12-09 2000-06-20 Daihatsu Motor Co Ltd 排気ガス浄化用触媒
CN1094467C (zh) * 1999-02-15 2002-11-20 上海跃龙有色金属有限公司 纳米铈锆复合氧化物、其制备方法及用途
DE60033328T2 (de) * 1999-03-05 2007-11-22 Daiichi Kigenso Kagaku Kogyo Co. Ltd. Mischoxid auf Basis von Cerium und Zirkonium, Verfahren zu dessen Herstellung; das Mischoxid enthaltender Katalysator und Anwendung des Katalysators zur Abgasreinigung
US6204219B1 (en) * 1999-07-29 2001-03-20 W. R. Grace & Co.-Conn. Thermally stable support material and method for making the same
US6297406B1 (en) 1999-08-03 2001-10-02 Mobil Oil Corporation Production of phenol
JP4443685B2 (ja) * 1999-09-10 2010-03-31 三井金属鉱業株式会社 排気ガス浄化用助触媒の製造方法
FR2811908B1 (fr) * 2000-07-24 2003-04-04 Rhodia Terres Rares Procede de traitement d'un gaz pour la reduction de l'emission des oxydes d'azote avec un catalyseur a base de rhodium avec du palladium et/ou du platine
US7563746B2 (en) * 2002-02-06 2009-07-21 Umicore Ag & Co. Kg Catalyst and method of making the same
US7041622B2 (en) * 2002-02-06 2006-05-09 Delphi Technologies, Inc. Catalyst, an exhaust emission control device and a method of using the same
JP4132863B2 (ja) * 2002-02-18 2008-08-13 株式会社ノリタケカンパニーリミテド 酸素イオン伝導体成形用原料粉体及びその製造方法
US7214643B2 (en) * 2002-03-22 2007-05-08 Kabushiki Kaisha Toyota Chuo Kenkyusho Metal oxide and method for producing the same, and catalyst
JP4218364B2 (ja) * 2002-03-29 2009-02-04 株式会社豊田中央研究所 金属酸化物の製造方法
US20040147394A1 (en) * 2002-03-28 2004-07-29 Wagner Jon P. Catalyst for production of hydrogen
KR100482646B1 (ko) * 2002-12-13 2005-04-14 한국화학연구원 공침법으로 제조된 천연가스 개질반응용 촉매
JP2004261641A (ja) * 2003-02-12 2004-09-24 Toyota Motor Corp 排ガス浄化用触媒及びその製造方法
US6803135B2 (en) * 2003-02-24 2004-10-12 Chromalloy Gas Turbine Corporation Thermal barrier coating having low thermal conductivity
FR2852592B1 (fr) * 2003-03-18 2007-02-23 Rhodia Elect & Catalysis Compositions a base d'un oxyde de cerium, d'un oxyde de zirconium et, eventuellement d'un oxyde d'une autre terre rare, a surface specifique elevee a 1100 c, leur procede de preparation et leur utilisation comme catalyseur
KR20040100136A (ko) * 2003-05-21 2004-12-02 한화석유화학 주식회사 금속 산화물의 도핑 방법
US7604789B2 (en) 2003-05-21 2009-10-20 Toyota Jidosha Kabushiki Kaisha Porous composite oxide and production method thereof
CN100376484C (zh) * 2003-12-30 2008-03-26 同济大学 一种纳米铈锆复合氧化物的制备方法及应用
JP4432588B2 (ja) * 2004-04-07 2010-03-17 株式会社豊田中央研究所 触媒及び触媒の製造方法
FR2868768B1 (fr) 2004-04-07 2007-07-20 Rhodia Chimie Sa Composition a base d'oxydes de zirconium et d'ytrium, procede de preparation et utilisation dans un systeme catalytique
JP4660135B2 (ja) * 2004-07-26 2011-03-30 第一稀元素化学工業株式会社 ジルコニア系多孔質体及びその製造方法
US7468465B2 (en) * 2005-05-31 2008-12-23 Exxonmobil Chemical Patents Inc. Method of making mixed metal oxide containing sulfur
US7173158B2 (en) * 2005-05-31 2007-02-06 Exxonmobil Chemical Patents Inc. Mixed metal oxide containing sulfur
JP4979900B2 (ja) * 2005-06-16 2012-07-18 株式会社キャタラー 排ガス浄化用触媒
CN100387522C (zh) * 2005-07-27 2008-05-14 浙江师范大学 高储氧纳米铈基复合氧化物材料的制备工艺
JP4789794B2 (ja) * 2005-12-28 2011-10-12 第一稀元素化学工業株式会社 セリウム・ジルコニウム複合酸化物及びその製造方法
GB0609783D0 (en) * 2006-05-17 2006-06-28 Magnesium Elektron Ltd Improved oxygen storage component
EP1894620B2 (de) * 2006-08-22 2023-06-07 Daiichi Kigenso Kagaku Kogyo Co., Ltd. Verfahren zur herstellung eines porösen zirkonoxid-pulvers
JP5096751B2 (ja) * 2007-01-26 2012-12-12 クラリアント触媒株式会社 物理的強度が改良されたアルキル芳香族化合物脱水素触媒およびその製造方法並びに脱水素化方法
US8173082B1 (en) * 2007-05-14 2012-05-08 Gas Technology Institute JP-8 fuel processor system
WO2009101984A1 (ja) * 2008-02-12 2009-08-20 Santoku Corporation 複合酸化物
JP5164665B2 (ja) 2008-04-09 2013-03-21 第一稀元素化学工業株式会社 セリウム−ジルコニウム系複合酸化物及びその製造方法
FR2948116B1 (fr) 2009-07-17 2012-05-04 Rhodia Operations Composition a base d'oxyde de cerium et d'oxyde de zirconium de porosite specifique, procede de preparation et utilisation en catalyse
US8530372B2 (en) * 2009-07-22 2013-09-10 Basf Corporation Oxygen storage catalyst with decreased ceria reduction temperature
CN107474799B (zh) 2010-03-12 2020-12-29 昭和电工材料株式会社 悬浮液、研磨液套剂、研磨液以及使用它们的基板的研磨方法
JP2011190149A (ja) * 2010-03-15 2011-09-29 Sumitomo Osaka Cement Co Ltd 複合セラミックス粉体およびその製造方法並びに固体酸化物形燃料電池
FR2962431B1 (fr) 2010-07-07 2018-01-19 Rhodia Operations Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catlyse.
FR2965189A1 (fr) 2010-09-29 2012-03-30 Rhodia Operations Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium
KR101686949B1 (ko) * 2010-10-19 2016-12-16 삼성전자 주식회사 금속 산화물 살균 촉매 및 이를 이용한 살균처리 장치
US9881801B2 (en) 2010-11-22 2018-01-30 Hitachi Chemical Company, Ltd. Slurry, polishing liquid set, polishing liquid, method for polishing substrate, and substrate
JP5621854B2 (ja) * 2010-11-22 2014-11-12 日立化成株式会社 砥粒の製造方法、スラリーの製造方法及び研磨液の製造方法
SG190054A1 (en) 2010-11-22 2013-06-28 Hitachi Chemical Co Ltd Slurry, polishing liquid set, polishing liquid, method for polishing substrate, and substrate
CN102513085B (zh) * 2011-11-07 2013-07-24 上海华明高纳稀土新材料有限公司 氧化铈-氧化锆基复合氧化物及其制备方法
KR101318255B1 (ko) * 2011-11-15 2013-10-15 서울대학교산학협력단 디메틸카보네이트 제조용 갈륨 옥사이드-세륨 옥사이드-지르코늄 옥사이드 복합 촉매 및 상기 촉매를 이용한 디메틸카보네이트의 제조방법
KR101985366B1 (ko) * 2011-11-16 2019-06-03 가부시키가이샤 산도쿠 복합 산화물
US9346977B2 (en) 2012-02-21 2016-05-24 Hitachi Chemical Company, Ltd. Abrasive, abrasive set, and method for abrading substrate
CN107617968A (zh) 2012-02-21 2018-01-23 日立化成株式会社 研磨剂、研磨剂组和基体的研磨方法
SG11201407086TA (en) 2012-05-22 2015-02-27 Hitachi Chemical Co Ltd Slurry, polishing-solution set, polishing solution, substrate polishing method, and substrate
US9932497B2 (en) 2012-05-22 2018-04-03 Hitachi Chemical Company, Ltd. Slurry, polishing-solution set, polishing solution, substrate polishing method, and substrate
CN104321854B (zh) 2012-05-22 2017-06-20 日立化成株式会社 悬浮液、研磨液套剂、研磨液、基体的研磨方法及基体
JP5889756B2 (ja) * 2012-09-14 2016-03-22 三井金属鉱業株式会社 排気ガス浄化用触媒担体
JP6698030B2 (ja) * 2013-12-23 2020-05-27 ローディア オペレーションズ 無機複合酸化物およびその製造方法
JP6698632B2 (ja) 2014-09-05 2020-05-27 ネオ パフォーマンス マテリアルズ （シンガポール） プライベート リミテッド 高空隙率のセリウム及びジルコニウム含有酸化物
JP6325010B2 (ja) * 2016-01-28 2018-05-16 第一稀元素化学工業株式会社 アルミナ系複合酸化物及びその製造方法
CN109641758B (zh) * 2017-06-30 2021-11-02 第一稀元素化学工业株式会社 氧化铝系复合氧化物及其制造方法
US20220001370A1 (en) * 2018-12-19 2022-01-06 Basf Corporation Layered catalysts composition and catalytic article and methods of manufacturing and using the same
JP7255459B2 (ja) * 2019-11-15 2023-04-11 トヨタ自動車株式会社 排ガス浄化用触媒
CN114177902B (zh) * 2021-12-14 2023-09-15 西华师范大学 一种具有微米级大孔的铈锆固溶体及其制备方法和应用

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992973A (ja) * 1982-11-15 1984-05-29 株式会社豊田中央研究所 ジルコニア材料およびジルコニア強化方法
JPS59162173A (ja) * 1983-03-07 1984-09-13 東ソー株式会社 ジルコニア焼結体
CA1213874A (en) * 1983-05-12 1986-11-12 Tomohisa Ohata Process for producing honeycomb catalyst for exhaust gas conversion
US4497785A (en) * 1983-11-18 1985-02-05 Union Oil Company Of California Production of rare earth compounds
JPS60110334A (ja) * 1983-11-21 1985-06-15 Nissan Motor Co Ltd 排ガス浄化用触媒の製造方法
JPS60137827A (ja) * 1983-12-23 1985-07-22 Shin Etsu Chem Co Ltd ジルコニア微粉末の製造方法
JPH0635329B2 (ja) * 1984-10-01 1994-05-11 住友化学工業株式会社 酸化ジルコニウム粉体の製造方法
US4668654A (en) * 1985-05-16 1987-05-26 Phillips Petroleum Company Nickel-cerium oxide-zirconium oxide-silica catalysts for hydrogenation of succinic anhydride to butyrolactone
US4639356A (en) * 1985-11-05 1987-01-27 American Cyanamid Company High technology ceramics with partially stabilized zirconia
FR2590887B1 (fr) * 1985-12-02 1990-09-07 Rhone Poulenc Spec Chim Composition a base d'oxyde de zirconium et procede de preparation
US5202300A (en) * 1988-02-18 1993-04-13 Engelhard Corporation Catalyst for purification of exhaust gas
US5015617A (en) * 1988-04-14 1991-05-14 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof
FR2656861B1 (fr) * 1990-01-05 1992-04-03 Cezus Co Europ Zirconium Zircone stabilisee par les oxydes d'yttrium et de cerium.
US5134109A (en) * 1989-07-07 1992-07-28 Idemitsu Kosan Company Limited Catalyst for reforming hydrocarbon with steam
JP2578219B2 (ja) * 1989-10-18 1997-02-05 日産自動車株式会社 排ガス浄化用触媒の製造方法
US5139992A (en) * 1989-11-08 1992-08-18 Engelhard Corporation Three-way conversion catalyst including a ceria-containing zirconia support
JP2641108B2 (ja) * 1990-06-21 1997-08-13 大日精化工業株式会社 酸化セリウム微粉体の製造方法
JP3190060B2 (ja) * 1991-05-21 2001-07-16 住友大阪セメント株式会社 セリア固溶正方晶ジルコニア微粉末の製造方法
BR9102212A (pt) * 1991-05-29 1993-01-05 Univ Estadual Paulista Julio D Processo de preparacao de zirconia dopada e nao dopada pela rota sol-gel usando nitrato de zirconila como material de partida
FR2699524B1 (fr) * 1992-12-21 1995-02-10 Rhone Poulenc Chimie Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation.
FR2701471B1 (fr) * 1993-02-10 1995-05-24 Rhone Poulenc Chimie Procédé de synthèse de compositions à base d'oxydes mixtes de zirconium et de cérium, compositions ainsi obtenues et utilisations de ces dernières.
JP3041662B2 (ja) * 1993-06-21 2000-05-15 三徳金属工業株式会社 酸素吸収・放出能を有する複合酸化物、その製造法、及びその使用方法
JP3505235B2 (ja) * 1994-10-05 2004-03-08 株式会社三徳 酸素吸収・放出能を有する複合酸化物
FR2736343B1 (fr) * 1995-07-03 1997-09-19 Rhone Poulenc Chimie Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation

Also Published As

Publication number Publication date
FR2714370B1 (fr) 1996-03-08
DE69409006C5 (de) 2019-08-14
ES2117394T3 (es) 1998-08-01
US5908800A (en) 1999-06-01
WO1995018068A1 (fr) 1995-07-06
ATE163905T1 (de) 1998-03-15
FI962586A (fi) 1996-06-20
BR9408361A (pt) 1997-08-26
EP0735984A1 (de) 1996-10-09
FR2714370A1 (fr) 1995-06-30
FI962586A0 (fi) 1996-06-20
DE69409006T2 (de) 1998-09-24
JPH09506587A (ja) 1997-06-30
FI107799B (fi) 2001-10-15
DE69409006D1 (de) 1998-04-16
CA2178834C (fr) 2000-11-07
EP0735984B1 (de) 1998-03-11
KR960706453A (ko) 1996-12-09
CN1039804C (zh) 1998-09-16
AU1319495A (en) 1995-07-17
CN1137784A (zh) 1996-12-11
AU692207B2 (en) 1998-06-04
KR100354470B1 (ko) 2002-12-26
JP3016865B2 (ja) 2000-03-06
CA2178834A1 (fr) 1995-07-06

Similar Documents

Publication Publication Date Title
ZA9410256B (en) Composition precursor and mixed cerium and zirconium oxide-based composition and procedure for preparation and use thereof
PL370652A1 (en) Liquid composition of factor vii polypeptides
DE69531457D1 (en) Sulfonamide
TW221279B (en) A direct tabletting auxiliary
AU3378401A (en) Scintillator crystals, method for making same, use thereof
CA2096536A1 (fr) Hydroxyde de calcium et/ou de magnesium, sa preparation et son utilisation
GB9312684D0 (en) Drinking vessel
AU679313B2 (en) Composition for treating water and sanitising soils
AU5288399A (en) Toothpaste comprising fine and coarse calcium carbonate
ES2177855T3 (es) Procedimiento para la fabricacion de un preparado medicinal que contiene sulfato calcico, y preparado medicinal que contiene sulfato calcico
NZ332911A (en) Toilet cleansing block comprising anionic surfactant, binder and C9-20 alcohol
ATE462400T1 (de) Verfahren zur herstellung eines pulverförmigen materials, das pulverförmige material und ein daraus hergestelltes keramikmaterial
GB9802439D0 (en) Absorbents
WO2002096855A3 (en) Anticholinergic compounds and methods of use
AU1315195A (en) Effluent treatment with hydrotalcite
JPS57204211A (en) Membrane for purifying mineral oil
JPS57123822A (en) Preparation of calcite-type calcium carbonate crystal
RU2021223C1 (ru) Вяжущее
JPS55154921A (en) Purification of olefin
JPS6485988A (en) Phosphonium salt, production and use thereof
Ramakrishnan et al. Hydrographical studies on five drinking-water bodies at Tiruvannamalai, Tamil Nadu.
GB1406562A (en) Steam cracking of hydrocarbons and catalyst for it
JPS56163799A (en) Treatment for filter cake of red mud
GR3027644T3 (en) Therapeutic compositions containing a lithium compound and silica
KR20000074946A (ko) 수돗물 수질개선용 분말정화제의 제조방법