GB500404A - Process for the manufacture of phosphorescent lithopone - Google Patents

Process for the manufacture of phosphorescent lithopone

Info

Publication number
GB500404A
GB500404A GB751238A GB751238A GB500404A GB 500404 A GB500404 A GB 500404A GB 751238 A GB751238 A GB 751238A GB 751238 A GB751238 A GB 751238A GB 500404 A GB500404 A GB 500404A
Authority
GB
United Kingdom
Prior art keywords
zinc
lithopone
sulphide
sulphate solution
manufacture
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
GB751238A
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.)
WILHELM NATHAN HIRSCHEL
Original Assignee
WILHELM NATHAN HIRSCHEL
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 WILHELM NATHAN HIRSCHEL filed Critical WILHELM NATHAN HIRSCHEL
Priority to GB751238A priority Critical patent/GB500404A/en
Publication of GB500404A publication Critical patent/GB500404A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0805—Chalcogenides
    • C09K11/0811—Chalcogenides with zinc or cadmium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/22—Luminous paints
    • 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
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0888—Sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Luminescent Compositions (AREA)

Abstract

500,404. Luminescent materials. HIRSCHEL, W. N. March 10, 1938, No. 7512. [Class 39 (i)] Phosphoresecnt lithopone for luminous and covering paints is made by introducing into a purified zinc sulphate solution a small amount of a copper, manganese, cadmium, bismuth, silver or other salt or a mixture thereof suitable for the activation of zinc sulphide luminophores, or purifying a zinc sulphate solution only so far that a sufficient quantity of said salts remains therein, precipitating the zinc with barium sulphide or a mixture of barium sulphide and sodium sulphide, and calcining the raw lithopone so obtained. A chloride or fluoride of an alkali or alkaline earth metal or of zinc or magnesium to act as a flux may be added to the zinc sulphate solution or may be incorporated into the lithopone at a stage in the manufacture thereof, for example by washing the latter in the filter press with a solution of the salts. Specification 201,549, [Class 1 (iii)], is referred to.
GB751238A 1938-03-10 1938-03-10 Process for the manufacture of phosphorescent lithopone Expired GB500404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB751238A GB500404A (en) 1938-03-10 1938-03-10 Process for the manufacture of phosphorescent lithopone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB751238A GB500404A (en) 1938-03-10 1938-03-10 Process for the manufacture of phosphorescent lithopone

Publications (1)

Publication Number Publication Date
GB500404A true GB500404A (en) 1939-02-08

Family

ID=9834540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB751238A Expired GB500404A (en) 1938-03-10 1938-03-10 Process for the manufacture of phosphorescent lithopone

Country Status (1)

Country Link
GB (1) GB500404A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537262A (en) * 1946-06-12 1951-01-09 Sylvania Electric Prod Luminescent zinc fluoride and method of preparing same
US4366141A (en) * 1981-03-27 1982-12-28 Gte Products Corporation Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537262A (en) * 1946-06-12 1951-01-09 Sylvania Electric Prod Luminescent zinc fluoride and method of preparing same
US4366141A (en) * 1981-03-27 1982-12-28 Gte Products Corporation Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles

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