GB948136A - Preparation of condensed isopropyl silicate materials - Google Patents

Preparation of condensed isopropyl silicate materials

Info

Publication number
GB948136A
GB948136A GB41208/62A GB4120862A GB948136A GB 948136 A GB948136 A GB 948136A GB 41208/62 A GB41208/62 A GB 41208/62A GB 4120862 A GB4120862 A GB 4120862A GB 948136 A GB948136 A GB 948136A
Authority
GB
United Kingdom
Prior art keywords
isopropyl
alcohol
sicl4
orthosilicate
condensed
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
GB41208/62A
Inventor
Harold Garton Emblem
Earl Whiteway Fothergill
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
Publication of GB948136A publication Critical patent/GB948136A/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
    • 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
    • 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
    • C04B33/1315—Non-ceramic binders
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/02—Polysilicates

Abstract

A condensed isopropyl silicate is made by heating isopropyl orthosilicate containing dissolved HCl at from 40 DEG to 55 DEG C., adding thereto water and, as mutual solvent for the reactants, isopropyl alcohol, the amount of water being from 0.75 to 1 mol per gram atom of Si in the orthosilicate, whereby an exothermic reaction ensues and HCl gas is liberated, refluxing the mixture and distilling off isopropyl alcohol. The isopropyl orthosilicate reactant is suitably the crude product obtained by reaction of SiCl4 and isopropyl alcohol. At least part of the alcohol used may be a product recovered from a previous preparation of a condensed isopropyl silicate, and at least part of the alcohol reacted with SiCl4 may be the product through which has been passed HCl liberated during reaction of SiCl4 with isopropyl alcohol. In a typical example, (1) isopropyl alcohol was slowly added to SiCl4 with subsequent heating of the mixture to 50 DEG C., air being passed therethrough; water and isopropyl were then added and the resulting mixture was refluxed for 1 hour, after which excess alcohol was distilled off up to 200 DEG C., to yield a condensed silicate having a SiO2 content of 37.1% and an orthosilicate content of 19.4%.
GB41208/62A 1959-03-18 1959-03-18 Preparation of condensed isopropyl silicate materials Expired GB948136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9375/59A GB948132A (en) 1959-03-18 1959-03-18 Improvements relating to processes for binding particulate solid materials

Publications (1)

Publication Number Publication Date
GB948136A true GB948136A (en) 1964-01-29

Family

ID=9870760

Family Applications (3)

Application Number Title Priority Date Filing Date
GB41209/62A Expired GB948137A (en) 1959-03-18 1959-03-18 Preparation of condensed isopropyl silicate materials
GB9375/59A Expired GB948132A (en) 1959-03-18 1959-03-18 Improvements relating to processes for binding particulate solid materials
GB41208/62A Expired GB948136A (en) 1959-03-18 1959-03-18 Preparation of condensed isopropyl silicate materials

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB41209/62A Expired GB948137A (en) 1959-03-18 1959-03-18 Preparation of condensed isopropyl silicate materials
GB9375/59A Expired GB948132A (en) 1959-03-18 1959-03-18 Improvements relating to processes for binding particulate solid materials

Country Status (4)

Country Link
BE (1) BE588775A (en)
CH (1) CH415969A (en)
DE (1) DE1209252B (en)
GB (3) GB948137A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809871A1 (en) * 1978-03-08 1979-09-13 Dynamit Nobel Ag PROCESS FOR THE PREPARATION OF PARTIAL HYDROLYZATES FROM TETRA- (2-ALCOXY ETHYL) - SILICATES
EP0004730A2 (en) * 1978-03-23 1979-10-17 Zirconal Processes Limited Improvements in the manufacture of alkylsilicates and their conversion to alkylpolysilicates
US4810441A (en) * 1985-04-02 1989-03-07 Clinotherm Limited Process for the preparation of a ceramic fiber
US4897232A (en) * 1986-11-28 1990-01-30 Clinotherm Limited Preparation of fibres from a liquid precursor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300289B (en) * 1962-06-30 1969-07-31 Ruhrchemie Ag Process for the production of solid polysilicic acid esters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB290717A (en) * 1927-02-16 1928-05-16 King George Improvements in materials for use in the art of painting or varnishing
CH275202A (en) * 1943-07-26 1951-05-15 Union Chimique Belge Sa Process for making molds and cores for casting metals.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809871A1 (en) * 1978-03-08 1979-09-13 Dynamit Nobel Ag PROCESS FOR THE PREPARATION OF PARTIAL HYDROLYZATES FROM TETRA- (2-ALCOXY ETHYL) - SILICATES
EP0004730A2 (en) * 1978-03-23 1979-10-17 Zirconal Processes Limited Improvements in the manufacture of alkylsilicates and their conversion to alkylpolysilicates
EP0004730A3 (en) * 1978-03-23 1979-10-31 Zirconal Processes Limited Improvements in the manufacture of alkylsilicates and their conversion to alkylpolysilicates
US4810441A (en) * 1985-04-02 1989-03-07 Clinotherm Limited Process for the preparation of a ceramic fiber
US4897232A (en) * 1986-11-28 1990-01-30 Clinotherm Limited Preparation of fibres from a liquid precursor

Also Published As

Publication number Publication date
GB948137A (en) 1964-01-29
DE1209252B (en) 1966-01-20
BE588775A (en) 1960-09-19
GB948132A (en) 1964-01-29
CH415969A (en) 1966-06-30

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