GB676538A - Improvements in or relating to mullite-stabilized alumina pebbles and process of preparation thereof - Google Patents

Improvements in or relating to mullite-stabilized alumina pebbles and process of preparation thereof

Info

Publication number
GB676538A
GB676538A GB24147/49A GB2414749A GB676538A GB 676538 A GB676538 A GB 676538A GB 24147/49 A GB24147/49 A GB 24147/49A GB 2414749 A GB2414749 A GB 2414749A GB 676538 A GB676538 A GB 676538A
Authority
GB
United Kingdom
Prior art keywords
alumina
per cent
mix
mullite
calcining
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
GB24147/49A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum Co
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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB676538A publication Critical patent/GB676538A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/70—Compounds containing carbon and sulfur, e.g. thiophosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

676,538. Refractory compositions. PHILLIPS PETROLEUM CO. Sept. 20, 1949 [Oct. 4, 1948], No. 24147/49. Drawings to Specification. Class 22 Mullite-stabilizing alumina pebbles are prepared from a plastic mix of finely comminuted alumina and aluminium silicate, the silica content varying between 0.3 and 12 per cent by weight of the free alumina and the mix containing not more than 1 per cent free silica and impurities, by forming spheres from the mix, drying the spheres, calcining at 2900‹ to 3200‹F for at least 2 hours and until their porosity lies between 5 and 20 per cent, and the average crystal size of the alumina lies between 0.5 and 50 microns. Ball clay, kaolin, andalusite, kyanite, sillimanite or mixtures thereof may be used as the aluminium silicate. In the case of an alumina-rich silicate pre-calcining at 2500‹-2700‹F is preferred to prevent future volume changes. Plasticizers, e.g. carboxy methyl cellulose may be added. Both ingredients should have a particle size within the range 150-400 (Standard U.S. screen scale).
GB24147/49A 1948-10-04 1949-09-20 Improvements in or relating to mullite-stabilized alumina pebbles and process of preparation thereof Expired GB676538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US676538XA 1948-10-04 1948-10-04

Publications (1)

Publication Number Publication Date
GB676538A true GB676538A (en) 1952-07-30

Family

ID=22077459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24147/49A Expired GB676538A (en) 1948-10-04 1949-09-20 Improvements in or relating to mullite-stabilized alumina pebbles and process of preparation thereof

Country Status (1)

Country Link
GB (1) GB676538A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5846891A (en) * 1997-06-10 1998-12-08 Korea Institute Of Science And Technology Thermal shock-resistant alumina-mullite composite material and preparation method thereof
EP2379470A2 (en) * 2008-12-31 2011-10-26 Saint-Gobain Ceramics & Plastics Inc. Ceramic article and process for making the same
DE102016224443A1 (en) * 2016-12-08 2018-06-14 Siemens Aktiengesellschaft Erosion-resistant ceramic material, powder, slurry and component

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5846891A (en) * 1997-06-10 1998-12-08 Korea Institute Of Science And Technology Thermal shock-resistant alumina-mullite composite material and preparation method thereof
EP2379470A2 (en) * 2008-12-31 2011-10-26 Saint-Gobain Ceramics & Plastics Inc. Ceramic article and process for making the same
EP2379470A4 (en) * 2008-12-31 2012-07-25 Saint Gobain Ceramics Ceramic article and process for making the same
DE102016224443A1 (en) * 2016-12-08 2018-06-14 Siemens Aktiengesellschaft Erosion-resistant ceramic material, powder, slurry and component
US11028018B2 (en) 2016-12-08 2021-06-08 Siemens Energy Global GmbH & Co. KG Erosion-resistant ceramic material, powder, slip and component
US11834377B2 (en) 2016-12-08 2023-12-05 Siemens Energy Global GmbH & Co. KG Erosion-resistant ceramic material, powder, slip and component

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