GB548930A - Method of processing dolomite - Google Patents

Method of processing dolomite

Info

Publication number
GB548930A
GB548930A GB9946/41A GB994641A GB548930A GB 548930 A GB548930 A GB 548930A GB 9946/41 A GB9946/41 A GB 9946/41A GB 994641 A GB994641 A GB 994641A GB 548930 A GB548930 A GB 548930A
Authority
GB
United Kingdom
Prior art keywords
dolomite
silica
aug
magnesium oxide
silicate
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
GB9946/41A
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.)
American Zinc Lead and Smelting Co
Original Assignee
American Zinc Lead and Smelting 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 American Zinc Lead and Smelting Co filed Critical American Zinc Lead and Smelting Co
Publication of GB548930A publication Critical patent/GB548930A/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
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/10—Preheating, burning calcining or cooling
    • C04B2/104—Ingredients added before or during the burning process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

548,930. Processing dolomite; production of magnesium oxide, calcium silicate, and carbon dioxide. AMERICAN ZINC, LEAD & SMELTING CO. Aug. 5, 1941, No. 9946. Convention date, Aug. 3, 1940. [Classes 1 (ii), 1 (iii)] Silica is added to powdered dolomite in an amount sufficient to convert substantially the whole of the calcium of the dolomite into silicate, the mixture is calcined at about 850‹ C. in an atmosphere of steam until calcium silicate and magnesium oxide are formed. The calcination may also be in ordinary atmosphere at 1000‹C. The ratio of silica to raw dolomite is preferably somewhat greater than 1.07 SiO 2 to 1 CaO. The silica may be quartz, diatomaceous earth, kieselguhr, tripole, or byproduct silicic acid.
GB9946/41A 1940-08-03 1941-08-05 Method of processing dolomite Expired GB548930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548930XA 1940-08-03 1940-08-03

Publications (1)

Publication Number Publication Date
GB548930A true GB548930A (en) 1942-10-29

Family

ID=21994195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9946/41A Expired GB548930A (en) 1940-08-03 1941-08-05 Method of processing dolomite

Country Status (1)

Country Link
GB (1) GB548930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115504700A (en) * 2022-09-29 2022-12-23 西南石油大学 Preparation method of oil well cement expanding agent
RU2820663C1 (en) * 2022-09-29 2024-06-07 Саусвест Петролиэм Юниверсити Method of producing backfill cement swelling agent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115504700A (en) * 2022-09-29 2022-12-23 西南石油大学 Preparation method of oil well cement expanding agent
CN115504700B (en) * 2022-09-29 2023-06-27 西南石油大学 Preparation method of oil well cement expanding agent
RU2820663C1 (en) * 2022-09-29 2024-06-07 Саусвест Петролиэм Юниверсити Method of producing backfill cement swelling agent

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