FR2405899B1 - Nouveau monohydrate d'alumine a cristallin utile comme support de catalyseur et son procede de preparation - Google Patents

Nouveau monohydrate d'alumine a cristallin utile comme support de catalyseur et son procede de preparation

Info

Publication number
FR2405899B1
FR2405899B1 FR7808965A FR7808965A FR2405899B1 FR 2405899 B1 FR2405899 B1 FR 2405899B1 FR 7808965 A FR7808965 A FR 7808965A FR 7808965 A FR7808965 A FR 7808965A FR 2405899 B1 FR2405899 B1 FR 2405899B1
Authority
FR
France
Prior art keywords
useful
preparation
catalyst support
novel crystalline
crystalline alumina
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.)
Expired
Application number
FR7808965A
Other languages
English (en)
French (fr)
Other versions
FR2405899A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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
Priority claimed from US05/781,393 external-priority patent/US4154812A/en
Priority claimed from US05/781,379 external-priority patent/US4179408A/en
Application filed by WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Publication of FR2405899A1 publication Critical patent/FR2405899A1/fr
Application granted granted Critical
Publication of FR2405899B1 publication Critical patent/FR2405899B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/635—0.5-1.0 ml/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/638—Pore volume more than 1.0 ml/g
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/647—2-50 nm
    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/021—After-treatment of oxides or hydroxides
    • 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
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/31—Density
    • B01J35/32—Bulk density
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/34—Mechanical properties
    • B01J35/36—Mechanical strength
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/34—Mechanical properties
    • B01J35/37—Crush or impact strength
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/34—Mechanical properties
    • B01J35/38—Abrasion or attrition resistance
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/70—Catalysts, in general, characterised by their form or physical properties characterised by their crystalline properties, e.g. semi-crystalline
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • 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
    • C01P2006/10—Solid density
    • 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
    • C01P2006/11—Powder tap density
    • 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
    • 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
    • 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
    • C01P2006/17—Pore diameter distribution
    • 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
    • C01P2006/21—Attrition-index or crushing strength of granulates
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR7808965A 1977-03-25 1978-03-28 Nouveau monohydrate d'alumine a cristallin utile comme support de catalyseur et son procede de preparation Expired FR2405899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/781,393 US4154812A (en) 1977-03-25 1977-03-25 Process for preparing alumina
US05/781,379 US4179408A (en) 1977-03-25 1977-03-25 Process for preparing spheroidal alumina particles

Publications (2)

Publication Number Publication Date
FR2405899A1 FR2405899A1 (fr) 1979-05-11
FR2405899B1 true FR2405899B1 (fr) 1985-10-04

Family

ID=27119846

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7808965A Expired FR2405899B1 (fr) 1977-03-25 1978-03-28 Nouveau monohydrate d'alumine a cristallin utile comme support de catalyseur et son procede de preparation
FR7826852A Expired FR2405900B1 (fr) 1977-03-25 1978-09-19 Procede pour la preparation de particules spheroidales d'alumine et l'utilisation desdites particules comme supports de catalyseur

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7826852A Expired FR2405900B1 (fr) 1977-03-25 1978-09-19 Procede pour la preparation de particules spheroidales d'alumine et l'utilisation desdites particules comme supports de catalyseur

Country Status (4)

Country Link
JP (1) JPS53119800A (enrdf_load_stackoverflow)
DE (2) DE2812875A1 (enrdf_load_stackoverflow)
FR (2) FR2405899B1 (enrdf_load_stackoverflow)
GB (4) GB1603461A (enrdf_load_stackoverflow)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392987A (en) * 1981-12-30 1983-07-12 W. R. Grace & Co. Alumina spheroids with controlled small particle size and a process for producing them
FR2518986B1 (fr) * 1981-12-30 1985-09-06 Criceram Procede de preparation d'alumines de haute purete a partir de solutions impures de chlorure d'aluminium
DE3212249C2 (de) * 1982-04-02 1986-08-21 Condea Chemie GmbH, 2212 Brunsbüttel Verfahren zur Herstellung von kugelförmiger Tonerde
JPS58190823A (ja) * 1982-04-26 1983-11-07 Chiyoda Chem Eng & Constr Co Ltd アルミナ担体の製造方法
US4513101A (en) * 1983-07-27 1985-04-23 W. R. Grace & Co. Small bead auto exhaust catalyst
JPS6340724A (ja) * 1986-08-04 1988-02-22 Kumamoto Pref Gov 低ソ−ダアルミナ粉体の製造方法
US6713428B1 (en) * 1998-07-06 2004-03-30 Instuit Francais Du Petrole Dispersible aluminium hydrate, method for preparing same and use for preparing catalysts
JP4639443B2 (ja) * 1999-08-30 2011-02-23 住友化学株式会社 ベーマイト及びそれを用いて形成してなる磁気記録媒体の下地層
JP3715482B2 (ja) * 1999-11-04 2005-11-09 エヌ・イーケムキャット株式会社 水素含有ガス中の一酸化炭素選択酸化触媒並びに該触媒を用いた一酸化炭素除去方法及び固体高分子電解質型燃料電池システム
DE10221668B4 (de) * 2002-05-16 2005-04-28 Daimler Chrysler Ag Kugelkatalysator für Verbrennungskraftmaschinen und Verfahren zur Katalyse von Abgasen bzw. Schadstoffgemischen
TWI432381B (zh) * 2005-12-12 2014-04-01 Grace W R & Co 氧化鋁粒子
RU2566748C2 (ru) * 2010-11-16 2015-10-27 Родиа Оперейшнс Подложка катализатора из оксида алюминия
FR2984180A1 (fr) * 2011-12-20 2013-06-21 IFP Energies Nouvelles Procede de fabrication de particules spheroidales d'alumine
TWI611836B (zh) 2012-02-17 2018-01-21 Advanced Refining Technologies Llc. 觸媒支撐物及其製備方法
TWI579043B (zh) 2012-02-17 2017-04-21 先進精鍊科技有限公司 球形觸媒支撐物及其製備方法
FR2997948B1 (fr) * 2012-11-15 2014-11-28 IFP Energies Nouvelles Procede d'isomerisation d'une coupe c8 aromatique en presence d'un catalyseur a base d'une zeolithe euo et une teneur en sodium particuliere
US10443100B2 (en) 2014-05-22 2019-10-15 The Scripps Research Institute Gene expression profiles associated with sub-clinical kidney transplant rejection
FR3022235B1 (fr) * 2014-06-13 2021-05-07 Ifp Energies Now Gel haute dispersibilite et son procede de preparation
CA2956954C (en) 2014-08-08 2022-11-15 Sasol Performance Chemicals Gmbh Precipitated alumina and method of preparation
CN112429755A (zh) * 2020-11-18 2021-03-02 山东物华新材料科技有限公司 一种水处理活性氧化铝球的制备方法
DE112021007314T5 (de) 2021-03-19 2024-01-04 Jgc Catalysts And Chemicals Ltd. Siliciumdioxid-Aluminiumoxid-Pulver, Verfahren zur Herstellung von Siliciumdioxid-Aluminiumoxid-Pulver, Katalysator für Fluid Catalytic Cracking und Verfahren zu dessen Herstellung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1958710A (en) * 1933-03-23 1934-05-15 Paul S Moyer Colloidal aluminum hydroxide and method of making the same
US2492167A (en) * 1943-06-01 1949-12-27 Socony Vacuum Oil Co Inc Process of forming alumina-containing gel beads
FR1267749A (fr) * 1960-09-21 1961-07-21 Nalco Chemical Co Procédé de préparation d'un support de catalyseur en alumine et produits en résultant
GB1076450A (en) * 1963-12-06 1967-07-19 Grace W R & Co Improvements relating to the production of alumina gels
FR1414641A (fr) * 1963-12-06 1965-10-15 Grace W R & Co Procédé perfectionné de préparation de gels d'alumine par atomisation et gels d'alumine obtenus par ce procédé
DE1592108A1 (de) * 1964-06-26 1970-12-03 Grace W R & Co Verfahren zur Herstellung von Tonerdegelen
DE1592098C3 (de) * 1965-12-13 1978-05-11 Engelhard Minerals & Chemicals Corp., Murray Hill, N.J. (V.St.A.) Verfahren zur Herstellung von kugelförmigen Aluminiumoxidteilchen
JPS4933321B1 (enrdf_load_stackoverflow) * 1970-12-07 1974-09-06
DE2302724A1 (de) * 1972-01-19 1973-08-09 Grace W R & Co Kontinuierliches verfahren zur herstellung von aluminiumoxyd
US3864461A (en) * 1972-08-29 1975-02-04 Laporte Industries Ltd Process for the production of alumina
US3864451A (en) * 1973-08-16 1975-02-04 Environics Inc Method for Removing Nitric Oxide from Combustion Gases
JPS5072897A (enrdf_load_stackoverflow) * 1973-10-31 1975-06-16
US3979334A (en) * 1975-04-16 1976-09-07 Universal Oil Products Company Manufacture of spheroidal alumina particles

Also Published As

Publication number Publication date
DE2812875C2 (enrdf_load_stackoverflow) 1989-08-31
FR2405900A1 (fr) 1979-05-11
GB1603461A (en) 1981-11-25
GB1603464A (en) 1981-11-25
DE2858783C2 (enrdf_load_stackoverflow) 1992-02-06
JPH0152328B2 (enrdf_load_stackoverflow) 1989-11-08
JPS53119800A (en) 1978-10-19
GB1603463A (en) 1981-11-25
GB1603462A (en) 1981-11-25
FR2405900B1 (fr) 1986-04-11
DE2812875A1 (de) 1978-10-05
FR2405899A1 (fr) 1979-05-11

Similar Documents

Publication Publication Date Title
FR2405899B1 (fr) Nouveau monohydrate d'alumine a cristallin utile comme support de catalyseur et son procede de preparation
LU80084A1 (fr) Procede de preparation d'oligoimides
MX160445A (es) Procedimiento para preparar derivados de benzoato ester substituido de 3-hidroximorfinanos
FI873069A7 (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten difenyylipropyyliamiinijohdannaisten valmistamiseksi
FI872517A7 (fi) Menetelmä terapeuttisesti käyttökelpoisten makrolidiyhdisteiden valmistamiseksi
FR2550099B1 (fr) Procede de preparation d'alumine destinee a etre utilisee comme support de catalyseur
BR8803008A (pt) Processo para sintese de silicoaluminofosfato cristalino
MA21413A1 (fr) Nouveau procede de preparation d'alcoxy-guanine
FI891144L (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten suolayhdisteiden valmistamiseksi
FI893130L (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten estramustiiniestereiden valmistamiseksi
FI893003L (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten neplanosiinijohdannaisten valmistamiseksi
IT1200719B (it) Apparacchiatura per la crescita di monocristalli
FI870373L (fi) Menetelmä lääkeaineina käyttökelpoisten dihydrotianaftaleeniyhdisteiden valmistamiseksi
BR8701395A (pt) Processo aperfeicoado para preparacao de compostos de organosilicio contendo ester
PT88158A (pt) Process for the preparation of a novel diosmin derivative
FI901775A7 (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten tiourasiilijohdannaisten valmistamiseksi
BE862992A (fr) Procede de preparation de composes azotes
FR2584703B1 (fr) Nouveau compose du neodyme et son procede de preparation
FI873843A7 (fi) Menetelmä uusien terapeuttisesti käyttökelpoisten 4-C-hydroksi-2-r-(substituoitu)kromaani-4-etikkahappojohdannaisten valmistamiseksi
FR2276094A1 (fr) Procede de preparation de monocristaux d'alumine alpha
FR2548185B1 (fr) Procede de preparation d'esters furanniques par reaction de transesterification
YU215582A (en) Process for obtaining imidazolinyl benzoic acids process for producing guanidine derivatives
LU80336A1 (fr) Procede de preparation d'ureidonitriles utiles comme antihypertenseurs
FR2338254A1 (fr) Procede de preparation de l'aminocyanoacetate d'ethyle
FR2597861B1 (fr) Nouveau procede de preparation du dihydromyrcenol

Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse