JPS553353A - Production of anhydrous quartz glass - Google Patents

Production of anhydrous quartz glass

Info

Publication number
JPS553353A
JPS553353A JP7596878A JP7596878A JPS553353A JP S553353 A JPS553353 A JP S553353A JP 7596878 A JP7596878 A JP 7596878A JP 7596878 A JP7596878 A JP 7596878A JP S553353 A JPS553353 A JP S553353A
Authority
JP
Japan
Prior art keywords
powder
quartz glass
container
vessel
high temp
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.)
Granted
Application number
JP7596878A
Other languages
Japanese (ja)
Other versions
JPS6059177B2 (en
Inventor
Shoichi Sudo
Masao Kawachi
Noriyoshi Shibata
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7596878A priority Critical patent/JPS6059177B2/en
Publication of JPS553353A publication Critical patent/JPS553353A/en
Publication of JPS6059177B2 publication Critical patent/JPS6059177B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/02—Pretreated ingredients
    • C03C1/022—Purification of silica sand or other minerals

Abstract

PURPOSE:To reduce the OH group content of a quartz glass product to below 1 ppm by exposing crushed raw ore powder to chlorine radicals in a high temp. atmosphere prior to a melt-vitrification process. CONSTITUTION:Powder 22 obtd. by crushing natural rock crystal, silica or optical silica is charged into container 21, passed through transport pipes 23, heated to a high temp. with heating element 211, and almost uniformly dropped into treating vessel 24 into which SOCl2 or the like 27 is introduced from container 26 with O2 gas. SOCl2 or the like 27 is thermally decomposed in a high temp. atmosphere in vessel 24 to form chlorine radicals, and OH groups on the surface of powder 22 or in powder 22 are bonded to the radicals. Chlorine radicals may be formed by photochemical reaction. Thus, powder 22 is thoroughly dehydrated and accumulated in container 29 as anhydrous quartz glass powder 210. Reaction gas in vessel 24 is ventilated with ventilation regulator 28. In the drawing, 212; an ultraviolet lamp.
JP7596878A 1978-06-24 1978-06-24 Manufacturing method of anhydrous quartz glass Expired JPS6059177B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7596878A JPS6059177B2 (en) 1978-06-24 1978-06-24 Manufacturing method of anhydrous quartz glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7596878A JPS6059177B2 (en) 1978-06-24 1978-06-24 Manufacturing method of anhydrous quartz glass

Publications (2)

Publication Number Publication Date
JPS553353A true JPS553353A (en) 1980-01-11
JPS6059177B2 JPS6059177B2 (en) 1985-12-24

Family

ID=13591527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7596878A Expired JPS6059177B2 (en) 1978-06-24 1978-06-24 Manufacturing method of anhydrous quartz glass

Country Status (1)

Country Link
JP (1) JPS6059177B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120538A (en) * 1982-01-09 1983-07-18 Nippon Telegr & Teleph Corp <Ntt> Production of chalcogenide glass
US4626268A (en) * 1984-03-20 1986-12-02 Gerhard Lindemann Process for manufacturing a product suitable for producing pure quartz glass as well as a process for producing pure quartz glass from this product
JPS6230632A (en) * 1985-08-01 1987-02-09 Shinetsu Sekiei Kk Production of high-purity quartz glass
US4749703A (en) * 1984-08-10 1988-06-07 Dainippon Pharmaceutical Co., Ltd. Calcium antagonist piperazine derivatives, and compositions therefor
WO2000068147A1 (en) * 1999-05-07 2000-11-16 Heraeus Quarzglas Gmbh & Co. Kg METHOD FOR PURIFYING SiO2-PARTICLES, DEVICE FOR CARRYING OUT SAID METHOD AND GRANULATION PRODUCED ACCORDING TO SAID METHOD

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201501A (en) * 1987-02-18 1988-08-19 Toshiba Corp Contact sensor
JPS63257564A (en) * 1987-04-16 1988-10-25 株式会社日本エム・デイ・エム Shaking bed equipped with stop mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120538A (en) * 1982-01-09 1983-07-18 Nippon Telegr & Teleph Corp <Ntt> Production of chalcogenide glass
JPS6238294B2 (en) * 1982-01-09 1987-08-17 Nippon Telegraph & Telephone
US4626268A (en) * 1984-03-20 1986-12-02 Gerhard Lindemann Process for manufacturing a product suitable for producing pure quartz glass as well as a process for producing pure quartz glass from this product
US4749703A (en) * 1984-08-10 1988-06-07 Dainippon Pharmaceutical Co., Ltd. Calcium antagonist piperazine derivatives, and compositions therefor
JPS6230632A (en) * 1985-08-01 1987-02-09 Shinetsu Sekiei Kk Production of high-purity quartz glass
WO2000068147A1 (en) * 1999-05-07 2000-11-16 Heraeus Quarzglas Gmbh & Co. Kg METHOD FOR PURIFYING SiO2-PARTICLES, DEVICE FOR CARRYING OUT SAID METHOD AND GRANULATION PRODUCED ACCORDING TO SAID METHOD

Also Published As

Publication number Publication date
JPS6059177B2 (en) 1985-12-24

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