GB907773A - Processes for binding particulate solid materials - Google Patents

Processes for binding particulate solid materials

Info

Publication number
GB907773A
GB907773A GB9580/59A GB958059A GB907773A GB 907773 A GB907773 A GB 907773A GB 9580/59 A GB9580/59 A GB 9580/59A GB 958059 A GB958059 A GB 958059A GB 907773 A GB907773 A GB 907773A
Authority
GB
United Kingdom
Prior art keywords
silicate
radicals
silica
ethyl
alkyl
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
GB9580/59A
Inventor
Harold Garton Emblem
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.)
Unilever PLC
Original Assignee
Unilever PLC
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 Unilever PLC filed Critical Unilever PLC
Priority to GB9580/59A priority Critical patent/GB907773A/en
Priority to BE588776A priority patent/BE588776A/en
Priority to CH309760A priority patent/CH415970A/en
Publication of GB907773A publication Critical patent/GB907773A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/04—Esters of silicic acids
    • 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

Abstract

Organic silicates containing Si-bonded aminoalkoxy radicals may be made by ester interchange from alkyl silicates (preferably of 1 to 5 C atoms) by replacement of some or all the alkyl radicals by aminoalkyl radicals, e.g. by refluxing the alkyl silicate (monomeric and/or polymeric) with a primary, secondary or tertiary aminoalcohol and distilling off the alkanols formed. In typical Examples (1) tetraethyl silicate was refluxed with monoethanolamine to yield tetra-b -aminoethyl silicate; (2) a mixture of an ethyl silicate containing polysilicates and monoethanolamine was refluxed to yield an ethyl-b -aminoethyl silicate containing polysilicates and equal proportions of ethyl and b -aminoethyl groups; in other examples orthosilicates are made containing alkyl radicals and radicals derived from 2-amino-butan-1-ol, 3-amino-propan-1-ol, diethanolamine, triethanolamine and 2-amino-2-ethyl propan-1,3-diol. The aminoalkyl silicates are mixed with finely divided refractories, e.g. silica, silica flint and sillimanite, shaped to the desired form, e.g. a shell mould, and the binder set by hydrolysis and gelation to silica gel (see Groups V and XXII).ALSO:A composition for making refractory moulds (see Group XXII) comprises a slurry of a particulate refractory material, e.g. silica, silica flint or sillimanite and, as binder therefor, an organic silicate (monomeric and/or polymeric) containing Si-bonded aminoalkoxy radicals (see Group IV(a)). The binder is set by (hydrolysis and gelation to silica gel) by means of water which may be added to the composition prior to shaping or taken up from the atmosphere after shaping. Examples are given.
GB9580/59A 1959-03-19 1959-03-19 Processes for binding particulate solid materials Expired GB907773A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9580/59A GB907773A (en) 1959-03-19 1959-03-19 Processes for binding particulate solid materials
BE588776A BE588776A (en) 1959-03-19 1960-03-17 A method of agglomerating solids into particles.
CH309760A CH415970A (en) 1959-03-19 1960-03-19 Method of binding granular refractory material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9580/59A GB907773A (en) 1959-03-19 1959-03-19 Processes for binding particulate solid materials

Publications (1)

Publication Number Publication Date
GB907773A true GB907773A (en) 1962-10-10

Family

ID=9874746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9580/59A Expired GB907773A (en) 1959-03-19 1959-03-19 Processes for binding particulate solid materials

Country Status (3)

Country Link
BE (1) BE588776A (en)
CH (1) CH415970A (en)
GB (1) GB907773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2361601A1 (en) * 2010-02-25 2011-08-31 3M Innovative Properties Company Glass and/or glass ceramic particles containing composition for application on a dental article, process and use thereof
US10548818B2 (en) 2015-07-21 2020-02-04 3M Innovative Properties Company Kit of parts for producing a glass ionomer cement, process of production and use thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2361601A1 (en) * 2010-02-25 2011-08-31 3M Innovative Properties Company Glass and/or glass ceramic particles containing composition for application on a dental article, process and use thereof
US10548818B2 (en) 2015-07-21 2020-02-04 3M Innovative Properties Company Kit of parts for producing a glass ionomer cement, process of production and use thereof

Also Published As

Publication number Publication date
CH415970A (en) 1966-06-30
BE588776A (en) 1960-09-19

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