GB617420A - Method of preparing aqueous suspensions of magnesia - Google Patents

Method of preparing aqueous suspensions of magnesia

Info

Publication number
GB617420A
GB617420A GB33527/45A GB3352745A GB617420A GB 617420 A GB617420 A GB 617420A GB 33527/45 A GB33527/45 A GB 33527/45A GB 3352745 A GB3352745 A GB 3352745A GB 617420 A GB617420 A GB 617420A
Authority
GB
United Kingdom
Prior art keywords
magnesia
acid
aqueous suspensions
sea water
preparing aqueous
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
GB33527/45A
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.)
Fr D Etudes & D Entpr S Soc
Original Assignee
Fr D Etudes & D Entpr S Soc
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 Fr D Etudes & D Entpr S Soc filed Critical Fr D Etudes & D Entpr S Soc
Publication of GB617420A publication Critical patent/GB617420A/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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients

Abstract

Aqueous suspensions of magnesia are stabilized by the addition of a small quantity of phosphoric acid, preferably orthophosphoric acid. Metaphosphoric and pyrophosphoric acids are also mentioned. The magnesia may be obtained by the action of lime water or caustic soda solution on sea water. The Specification as open to inspection under Sect. 91 comprises also the treatment of sea water &c., prior to magnesia precipitation, with an acid, followed by alkation to eliminate carbonates, sulphuric acid producing a dense precipitate, phosphoric acid a voluminous one, with hydrochloric acid intermediate. This subject-matter does not appear in the Specification as accepted.
GB33527/45A 1942-12-10 1945-12-11 Method of preparing aqueous suspensions of magnesia Expired GB617420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR617420X 1942-12-10

Publications (1)

Publication Number Publication Date
GB617420A true GB617420A (en) 1949-02-07

Family

ID=8982298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33527/45A Expired GB617420A (en) 1942-12-10 1945-12-11 Method of preparing aqueous suspensions of magnesia

Country Status (1)

Country Link
GB (1) GB617420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183648A (en) * 1990-03-15 1993-02-02 Shell Research Limited Process for preparing magnesia having reduced hydration tendency, hydration resistant magnesia, dry mixture for preparing magnesia based castables and magnesia based castable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183648A (en) * 1990-03-15 1993-02-02 Shell Research Limited Process for preparing magnesia having reduced hydration tendency, hydration resistant magnesia, dry mixture for preparing magnesia based castables and magnesia based castable

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