GB697231A - Improvements in and relating to the production of highly refractory magnesium aluminate compositions by a wet chemical process - Google Patents

Improvements in and relating to the production of highly refractory magnesium aluminate compositions by a wet chemical process

Info

Publication number
GB697231A
GB697231A GB7137/50A GB713750A GB697231A GB 697231 A GB697231 A GB 697231A GB 7137/50 A GB7137/50 A GB 7137/50A GB 713750 A GB713750 A GB 713750A GB 697231 A GB697231 A GB 697231A
Authority
GB
United Kingdom
Prior art keywords
relating
production
magnesium aluminate
chemical process
wet chemical
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
GB7137/50A
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.)
FRIEDRICH WILHELM GAERTNER
Original Assignee
FRIEDRICH WILHELM GAERTNER
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 FRIEDRICH WILHELM GAERTNER filed Critical FRIEDRICH WILHELM GAERTNER
Publication of GB697231A publication Critical patent/GB697231A/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
    • C04B35/42—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 chromites
    • 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
    • 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
    • C04B35/12—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 chromium oxide
    • 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
    • C04B35/44—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 aluminates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Magnesium aluminate, for use as a refractory or abrasive, in which the molecular ratio MgO/Al2O3 is greater than unity, e.g. 3 or 4, is produced by reacting in solution, say at 60-70 DEG C, water soluble magnesium salts, e.g. the chloride or magnesium-containing lyes obtained in the extraction of potassium salts, and water-soluble aluminates, e.g. the lyes from wet decomposition of bauxite or clay, heating the gel to 300-400 DEG C, washing, and firing, say in hydrogen, at 1000-1950 DEG C. Reference is also made to a temperature of 2100 DEG C.
GB7137/50A 1949-04-13 1950-03-22 Improvements in and relating to the production of highly refractory magnesium aluminate compositions by a wet chemical process Expired GB697231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE171922X 1949-04-13

Publications (1)

Publication Number Publication Date
GB697231A true GB697231A (en) 1953-09-16

Family

ID=5689682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7137/50A Expired GB697231A (en) 1949-04-13 1950-03-22 Improvements in and relating to the production of highly refractory magnesium aluminate compositions by a wet chemical process

Country Status (2)

Country Link
AT (1) AT171922B (en)
GB (1) GB697231A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805167A (en) * 1954-05-18 1957-09-03 Harbison Walker Refractories Synthetic spinel refractory products
US3437468A (en) * 1966-05-06 1969-04-08 Du Pont Alumina-spinel composite material
US3637406A (en) * 1970-12-23 1972-01-25 American Lava Corp Ultrapure alumina ceramics formed by coprecipitation
WO1982000820A1 (en) * 1980-09-04 1982-03-18 Chemical Co Dow Magnesium aluminum spinels
US4394455A (en) * 1980-12-18 1983-07-19 The Dow Chemical Company Spinel slip casting composition and articles
US4439532A (en) * 1981-08-26 1984-03-27 The Dow Chemical Company Casting slip made from spinel and spinel refractories

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805167A (en) * 1954-05-18 1957-09-03 Harbison Walker Refractories Synthetic spinel refractory products
US3437468A (en) * 1966-05-06 1969-04-08 Du Pont Alumina-spinel composite material
US3637406A (en) * 1970-12-23 1972-01-25 American Lava Corp Ultrapure alumina ceramics formed by coprecipitation
WO1982000820A1 (en) * 1980-09-04 1982-03-18 Chemical Co Dow Magnesium aluminum spinels
JPS57501327A (en) * 1980-09-04 1982-07-29
US4394455A (en) * 1980-12-18 1983-07-19 The Dow Chemical Company Spinel slip casting composition and articles
US4439532A (en) * 1981-08-26 1984-03-27 The Dow Chemical Company Casting slip made from spinel and spinel refractories

Also Published As

Publication number Publication date
AT171922B (en) 1952-07-25

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