GR1000178B - Meθοδος παρενθεσης τεμαχιδιων περοβσκιτων υπο την μορφη στηλισκων σε φυλλομορφους πηλους. - Google Patents

Meθοδος παρενθεσης τεμαχιδιων περοβσκιτων υπο την μορφη στηλισκων σε φυλλομορφους πηλους.

Info

Publication number
GR1000178B
GR1000178B GR900100506A GR900100506A GR1000178B GR 1000178 B GR1000178 B GR 1000178B GR 900100506 A GR900100506 A GR 900100506A GR 900100506 A GR900100506 A GR 900100506A GR 1000178 B GR1000178 B GR 1000178B
Authority
GR
Greece
Prior art keywords
sheets
montmorillonite
perovskite
fsaen
abox
Prior art date
Application number
GR900100506A
Other languages
English (en)
Inventor
Athanasios Lantavos
Filippos Pomonis
Stelios Skarimpas
Original Assignee
Athanasios Lantavos
Filippos Pomonis
Stelios Skarimpas
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
Application filed by Athanasios Lantavos, Filippos Pomonis, Stelios Skarimpas filed Critical Athanasios Lantavos
Publication of GR1000178B publication Critical patent/GR1000178B/el

Links

Classifications

    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/049—Pillared clays
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
    • C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
    • C01B33/40—Clays
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00—Compounds of copper
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G45/00—Compounds of manganese
    • C01G45/12—Manganates manganites or permanganates
    • C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
    • C01G45/125—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type[MnO3]n-, e.g. Li2MnO3, Li2[MxMn1-xO3], (La,Sr)MnO3
    • C01G45/1264—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type[MnO3]n-, e.g. Li2MnO3, Li2[MxMn1-xO3], (La,Sr)MnO3 containing rare earth, e.g. La1-xCaxMnO3, LaMnO3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/40—Cobaltates
    • C01G51/70—Cobaltates containing rare earth, e.g. LaCoO3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/40—Nickelates
    • C01G53/70—Nickelates containing rare earth, e.g. LaNiO3
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/30—Three-dimensional structures
    • C01P2002/34—Three-dimensional structures perovskite-type (ABO3)
    • 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
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/88—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by thermal analysis data, e.g. TGA, DTA, DSC

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Analytical Chemistry (AREA)
  • Catalysts (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Με την μέθοδο αυτή επιτυγχάνεται η παρένθεση περοβσκιτικών μικροτεμαχιδίων του γενικού τύπου ΑΒΟχ όπου Α είναι La ή άλλο κατάλληλο για δομή περοβσκιτικής φάσης συνήθως μη αναγόμενο μέταλλο το δε Β είναι αναγόμενο συνήθως μέταλλο, σε φυλλόμορφους αργιλλοπυριτικούς πηλούς της κατηγορίας των σμεκτιτών και συγκεκριμένα του Μοντμοριλλονίτη. Η διαδικασία παρένθεσης προχωρεί μέσω σύνθεσης διπυρηνικών συμπλοκών του γενικού τύπου ΑΒ(fsaen).NO3. Τα σύμπλοκα αυτά προσροφώνται στον πηλό και καταλαμβάνουν τον χώρο μεταξύ των αργιλλοπυριτικών φύλλων. Το μετά την προσρόφηση προκύπτον σύστημα Montmorillonite-AB(fsaen) θερμαίνεται οπότε το οργανικό μέρος καίγεται και απομακρύνεται, απομένουν δε μεταξύ των φύλλων του πηλού (Μοντμοριλλονίτη) στηλίσκοι περοβσκιτικής φύσης ΑΒΟχ όπως π.χ. LaCoOx, LaMnOx, LaNiOx, LaCuOx. Τα λαμβανόμενα τελικά προϊόντα παρουσιάζουν αρκετά υψηλές ειδικές επιφάνειες σε θερμοκρασίες 500°-600°C. Επίσης οι ενδοστρωματικές αποστάσεις μεταξύ των φύλλων είναι περίπου 16 Α στους 500°C και 13- 14 Α στους 600°C πράγμα που εξηγεί και την αυξημένη ειδική επιφάνεια αυτών. Η ανθεκτικότητα τέτοιων υλικών σε υψηλές θερμοκρασίες και η αυξημένη ειδική επιφάνεια τους τα καθιστά υποψήφια για χρήση τόσο σαν ειδικά προσροφητικά όσο και σαν καταλύτες σε διάφορες βιομηχανικές εφαρμογές. ω
GR900100506A 1990-07-03 1990-07-03 Meθοδος παρενθεσης τεμαχιδιων περοβσκιτων υπο την μορφη στηλισκων σε φυλλομορφους πηλους. GR1000178B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR90100506 1990-07-03

Publications (1)

Publication Number Publication Date
GR1000178B true GR1000178B (el) 1992-01-20

Family

ID=10940175

Family Applications (1)

Application Number Title Priority Date Filing Date
GR900100506A GR1000178B (el) 1990-07-03 1990-07-03 Meθοδος παρενθεσης τεμαχιδιων περοβσκιτων υπο την μορφη στηλισκων σε φυλλομορφους πηλους.

Country Status (3)

Country Link
AU (1) AU8070691A (el)
GR (1) GR1000178B (el)
WO (1) WO1992000808A1 (el)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100844062B1 (ko) * 2001-02-21 2008-07-07 미쓰이 가가쿠 가부시키가이샤 올레핀 중합용 촉매 및 이 촉매를 사용하는 올레핀중합체의 제조방법
CN115301243B (zh) * 2022-07-15 2024-01-05 浙江聚泰新能源材料有限公司 一种负载型钙钛矿催化剂、制备方法及其应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179409A (en) * 1977-11-09 1979-12-18 Exxon Research & Engineering Co. Hydrocarbon cracking catalyst
GB2182919A (en) * 1985-10-28 1987-05-28 Elf France Bridged layered clays
WO1988000093A1 (en) * 1986-06-27 1988-01-14 Mobil Oil Corporation Layered metal oxides containing interlayer oxides and their synthesis
WO1989000083A1 (en) * 1987-07-07 1989-01-12 E.C.C. America Inc. Process of preparing mixed pillared clays and reduction products thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179409A (en) * 1977-11-09 1979-12-18 Exxon Research & Engineering Co. Hydrocarbon cracking catalyst
GB2182919A (en) * 1985-10-28 1987-05-28 Elf France Bridged layered clays
WO1988000093A1 (en) * 1986-06-27 1988-01-14 Mobil Oil Corporation Layered metal oxides containing interlayer oxides and their synthesis
WO1989000083A1 (en) * 1987-07-07 1989-01-12 E.C.C. America Inc. Process of preparing mixed pillared clays and reduction products thereof

Also Published As

Publication number Publication date
AU8070691A (en) 1992-02-04
WO1992000808A1 (en) 1992-01-23

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