GB1085594A - Silica sol compositions - Google Patents

Silica sol compositions

Info

Publication number
GB1085594A
GB1085594A GB2183965A GB2183965A GB1085594A GB 1085594 A GB1085594 A GB 1085594A GB 2183965 A GB2183965 A GB 2183965A GB 2183965 A GB2183965 A GB 2183965A GB 1085594 A GB1085594 A GB 1085594A
Authority
GB
United Kingdom
Prior art keywords
weight
silica
sol
ester
hexitol
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
GB2183965A
Inventor
Eric James Shepherd
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals Ltd
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 Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB2183965A priority Critical patent/GB1085594A/en
Priority to FR62548A priority patent/FR1480795A/en
Priority to DE19661508686 priority patent/DE1508686A1/en
Publication of GB1085594A publication Critical patent/GB1085594A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/205—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of organic silicon or metal compounds, other organometallic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
    • B22C1/183—Sols, colloids or hydroxide gels
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Colloid Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

A composition comprises an aqueous silica sol containing finely divided refractory material and a water-soluble carboxylic ester of a hexitol or a hexitol anhydride, or a poly(oxyalkylene) ether thereof. The refractory material may be zircon, fused silica, flint, alumina or aluminium silicates, e.g. sillimanite or mullte, and there may be 66-500 parts by weight of refractory per 100 parts by weight silica sol. The refractory may have particle size less than 200 B.S.G. mesh. The ester may be a hexitol or sorbitan ester, e.g. sorbitan monolaurate; the weight of the ester may be less than 5% of the weight of the refractory. The silica sol may be made from an alkali metal silicate, and the sol may have SiO2:M2O weight ratio of between 80:1 and 150:1, M being the alkali metal, e.g. Na. The concentration of silica in the sol may be 10-50% wt. The composition is readily redisperesed after standing. It may be used in the shell-moulding process to form metal-casting moulds.ALSO:A composition comprises an aqueous silica sol containing finely divided fused silica and a water-soluble carboxylic ester of a hexitol or a hexitol anhydride, or a poly(oxyalkylene) ether thereof. There may be 66-500 parts by weight of fused silica per 100 parts by weight silica sol. The fused silica may have particle size less than 200 B.S.S. mesh. The ester may be a hexitol or sorbitan ester, e.g. sorbitan monolaurate; the weight of the ester may be less than 5% of the weight of the fused silica. The silica sol may be made from an alkali metal silicate, and the sol may have SiO2:M2O weight ratio of between 80:1 and 150:1, M being the alkali metal, e.g. Na. The concentration of silica in the sol may be 10-50% wt. The composition is readily redispersed after standing. It may be used in the shell-moulding process to form metal-casting moulds.
GB2183965A 1965-05-24 1965-05-24 Silica sol compositions Expired GB1085594A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2183965A GB1085594A (en) 1965-05-24 1965-05-24 Silica sol compositions
FR62548A FR1480795A (en) 1965-05-24 1966-05-23 Products based on silica soil
DE19661508686 DE1508686A1 (en) 1965-05-24 1966-05-24 Silica sol preparations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2183965A GB1085594A (en) 1965-05-24 1965-05-24 Silica sol compositions

Publications (1)

Publication Number Publication Date
GB1085594A true GB1085594A (en) 1967-10-04

Family

ID=10169671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2183965A Expired GB1085594A (en) 1965-05-24 1965-05-24 Silica sol compositions

Country Status (2)

Country Link
DE (1) DE1508686A1 (en)
GB (1) GB1085594A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031027A1 (en) * 1997-12-12 1999-06-24 Barrick Gold Corporation Acid resistant cement composition
EP1043285A1 (en) * 1999-04-08 2000-10-11 Roquette Frˬres Additive for mineral binder based on the product of internal dehydration of a hydrogenated sugar, mineral binders containing said additive and method for preparing them
JP2015523913A (en) * 2012-06-06 2015-08-20 エーエスケー ケミカルズ ゲーエムベーハーＡｓｋ Ｃｈｅｍｉｃａｌｓ Ｇｍｂｈ Mold material mixture containing barium sulfate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031027A1 (en) * 1997-12-12 1999-06-24 Barrick Gold Corporation Acid resistant cement composition
US5989330A (en) * 1997-12-12 1999-11-23 Barrick Gold Corporation Acid resistant cement composition
EP1043285A1 (en) * 1999-04-08 2000-10-11 Roquette Frˬres Additive for mineral binder based on the product of internal dehydration of a hydrogenated sugar, mineral binders containing said additive and method for preparing them
FR2791973A1 (en) * 1999-04-08 2000-10-13 Roquette Freres ADJUVANTS FOR MINERAL BINDERS, BASED ON A PRODUCT OF INTERNAL DEHYDRATION OF A HYDROGENATED SUGAR, ADJUVANT MINERAL BINDERS AND PROCESS FOR THE PREPARATION THEREOF
US6811604B2 (en) 1999-04-08 2004-11-02 Roquette Freres Additives for mineral binders, based on a product of internal dehydration of a hydrogenated sugar, mineral binders with additives and method of preparing same
JP2015523913A (en) * 2012-06-06 2015-08-20 エーエスケー ケミカルズ ゲーエムベーハーＡｓｋ Ｃｈｅｍｉｃａｌｓ Ｇｍｂｈ Mold material mixture containing barium sulfate

Also Published As

Publication number Publication date
DE1508686A1 (en) 1969-10-30

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