GB524442A - Process for the manufacture of glass-like quartz - Google Patents

Process for the manufacture of glass-like quartz

Info

Publication number
GB524442A
GB524442A GB3773838A GB3773838A GB524442A GB 524442 A GB524442 A GB 524442A GB 3773838 A GB3773838 A GB 3773838A GB 3773838 A GB3773838 A GB 3773838A GB 524442 A GB524442 A GB 524442A
Authority
GB
United Kingdom
Prior art keywords
silica
temperature
precipitated
raised
heated
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
GB3773838A
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.)
VER GLUEHLAMPEN UEND ELEK ZITA
Original Assignee
VER GLUEHLAMPEN UEND ELEK ZITA
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
Priority to NL56058D priority Critical patent/NL56058C/xx
Application filed by VER GLUEHLAMPEN UEND ELEK ZITA filed Critical VER GLUEHLAMPEN UEND ELEK ZITA
Priority to GB3773838A priority patent/GB524442A/en
Priority to FR862521D priority patent/FR862521A/en
Publication of GB524442A publication Critical patent/GB524442A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225—Refining
    • C03B5/2252—Refining under reduced pressure, e.g. with vacuum refiners

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

524,442. Fused silica. BURGESS, A. F. (Vereinigte Gluhlampen und Elektrizitats Akt.- Ges). Dec. 29, 1938, No. 37738. [Class 56] A process for obtaining transparent vitreous quartz consists in fusing silica acid which has been precipitated from solution. The wet precipitated material is pressed into pills and is heated in vacuo to a temperature not exceeding 500‹C. to allow moisture to escape. The temperature is then raised to 1000‹C. when the material commences to shrink and sinter, and is further raised to 1600-1900‹C. to fuse the material. Fusion may be accomplished also in an atmosphere, such as helium, to which the silica is permeable in a heated state.
GB3773838A 1938-12-29 1938-12-29 Process for the manufacture of glass-like quartz Expired GB524442A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL56058D NL56058C (en) 1938-12-29
GB3773838A GB524442A (en) 1938-12-29 1938-12-29 Process for the manufacture of glass-like quartz
FR862521D FR862521A (en) 1938-12-29 1939-12-21 Process for the production of glass-like quartz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3773838A GB524442A (en) 1938-12-29 1938-12-29 Process for the manufacture of glass-like quartz

Publications (1)

Publication Number Publication Date
GB524442A true GB524442A (en) 1940-08-07

Family

ID=10398685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3773838A Expired GB524442A (en) 1938-12-29 1938-12-29 Process for the manufacture of glass-like quartz

Country Status (3)

Country Link
FR (1) FR862521A (en)
GB (1) GB524442A (en)
NL (1) NL56058C (en)

Also Published As

Publication number Publication date
FR862521A (en) 1941-03-08
NL56058C (en)

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