GB1371184A - Method of manufacturing a cathodochromic sodalite - Google Patents

Method of manufacturing a cathodochromic sodalite

Info

Publication number
GB1371184A
GB1371184A GB1445173A GB1445173A GB1371184A GB 1371184 A GB1371184 A GB 1371184A GB 1445173 A GB1445173 A GB 1445173A GB 1445173 A GB1445173 A GB 1445173A GB 1371184 A GB1371184 A GB 1371184A
Authority
GB
United Kingdom
Prior art keywords
sodalite
aluminate
cathodochromic
march
product
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
GB1445173A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1371184A publication Critical patent/GB1371184A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/14—Screens on or from which an image or pattern is formed, picked up, converted or stored acting by discoloration, e.g. halide screen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C01B33/28—Base exchange silicates, e.g. zeolites
    • C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
    • C01B33/2892—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures containing an element or a compound occluded in the pores of the network, e.g. an oxide already present in the starting reaction mixture
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1371184 Cathodochromic sodalite PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 March 1973 [29 March 1972] 14451/73 Heading C1A [Also in Division C4] Manufacture of cathodochromic sodalite with composition Na3Al3Si3O12NaX (where X is Cl, Br or I) comprises preparing an aqueous solution of Na aluminate and at least 0À33 moles of Na halide (in the form of the salt or by reacting HX with excess NaOH in the Na aluminate) per mol. of Na aluminate, adding SiO2 to said solution in the quantity 0À9-1À10 mols./mole of Na aluminate, drying the resultant suspension, heating the product at a temperature of more than 500‹ C. but below the m.p. of sodalite (e.g. at 1000-1150‹ C. for ¢-4 hours) and washing the product with water. A further heat treatment with additional NaX may be carried out to improve the cathodochromic properties of the sodalite.
GB1445173A 1972-03-29 1973-03-26 Method of manufacturing a cathodochromic sodalite Expired GB1371184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7204203A NL7204203A (en) 1972-03-29 1972-03-29

Publications (1)

Publication Number Publication Date
GB1371184A true GB1371184A (en) 1974-10-23

Family

ID=19815733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1445173A Expired GB1371184A (en) 1972-03-29 1973-03-26 Method of manufacturing a cathodochromic sodalite

Country Status (7)

Country Link
JP (1) JPS498500A (en)
BE (1) BE797406A (en)
CA (1) CA984577A (en)
DE (1) DE2311609A1 (en)
FR (1) FR2178105B1 (en)
GB (1) GB1371184A (en)
NL (1) NL7204203A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316049A (en) * 1986-07-08 1988-01-23 Fuji Debuison Kagaku Kk Catalyst carrier for fluidized bed

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705323A (en) * 1971-01-13 1972-12-05 Rca Corp Cathodochromic sodalite and cathode ray tube employing same

Also Published As

Publication number Publication date
BE797406A (en) 1973-09-27
NL7204203A (en) 1973-10-02
FR2178105A1 (en) 1973-11-09
JPS498500A (en) 1974-01-25
DE2311609A1 (en) 1973-10-11
CA984577A (en) 1976-03-02
FR2178105B1 (en) 1976-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee