GB1454577A - Process for purifying quartz sand - Google Patents

Process for purifying quartz sand

Info

Publication number
GB1454577A
GB1454577A GB2836674A GB2836674A GB1454577A GB 1454577 A GB1454577 A GB 1454577A GB 2836674 A GB2836674 A GB 2836674A GB 2836674 A GB2836674 A GB 2836674A GB 1454577 A GB1454577 A GB 1454577A
Authority
GB
United Kingdom
Prior art keywords
quartz sand
purifying quartz
acid
reacting
sand
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
GB2836674A
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom 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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of GB1454577A publication Critical patent/GB1454577A/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

1454577 Purifying quartz sand A AHLSTROM OSAKEYHTIO 26 June 1974 [5 July 1973] 28366/74 Heading C1A In a process for purifying quartz sand by reacting it with aqueous HF (e.g. 2-30 wt. per cent) at elevated temperature (e.g. at 70- 80‹ C. for maximum 30 mins.), HF is regenerated from a separated liquid phase containing silicofluoric acid by reacting it with NH 3 or a solution thereof (e.g. at 70-80‹ C.), thereby precipitating silicic acid, adding H 2 SO 4 to precipitate (NH 4 ) 2 SO 4 and recovering a solution containing free HF, which may be recycled. The sand may first be washed with water or acid to remove lone impurities, or subjected to magnetic separation of iron.
GB2836674A 1973-07-05 1974-06-26 Process for purifying quartz sand Expired GB1454577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI732168A FI49018C (en) 1973-07-05 1973-07-05 A method for cleaning quartz sand from various impurities, in particular iron compounds.

Publications (1)

Publication Number Publication Date
GB1454577A true GB1454577A (en) 1976-11-03

Family

ID=8506752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2836674A Expired GB1454577A (en) 1973-07-05 1974-06-26 Process for purifying quartz sand

Country Status (9)

Country Link
BE (1) BE817300A (en)
DE (1) DE2431928C2 (en)
DK (1) DK136596B (en)
FI (1) FI49018C (en)
FR (1) FR2235877B1 (en)
GB (1) GB1454577A (en)
NL (1) NL7408803A (en)
NO (1) NO133662C (en)
SE (1) SE396368B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246121A1 (en) * 1982-12-13 1984-06-14 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING BORDE-FREE SILICON DIOXIDE
EP0219840A2 (en) * 1985-10-21 1987-04-29 Lothar Jung Modified close fraction batch process for purification of SiO2
CN102173425A (en) * 2010-12-28 2011-09-07 汪徐春 Method for preparing high-purity quartz sand by iron removal based on ammonium salt complexation
RU2603934C1 (en) * 2015-06-05 2016-12-10 Общество с ограниченной ответственностью "НВП Центр-ЭСТАгео" Method of cleaning quartz sands from iron
CN115028170A (en) * 2022-05-18 2022-09-09 天津臻泰科技有限公司 Method for producing low-iron siliceous raw material by combined scrubbing of fluoride-free alkali and acid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040385C2 (en) * 1980-10-25 1985-02-21 Heraeus Quarzschmelze Gmbh, 6450 Hanau Device for the continuous surface cleaning of quartz crystal pieces
DE102008004873A1 (en) * 2008-01-17 2009-08-06 Siemens Aktiengesellschaft Method for treating and solidifying quartz sand by activating, solidified silica sand body and overcurrent protective devices
CN108658083A (en) * 2018-06-26 2018-10-16 广西浙缘农业科技有限公司 A kind of preparation method of glass sand

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512563A (en) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246121A1 (en) * 1982-12-13 1984-06-14 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING BORDE-FREE SILICON DIOXIDE
EP0219840A2 (en) * 1985-10-21 1987-04-29 Lothar Jung Modified close fraction batch process for purification of SiO2
EP0219840A3 (en) * 1985-10-21 1990-02-07 Lothar Jung Modified close fraction batch process for purification of sio2
CN102173425A (en) * 2010-12-28 2011-09-07 汪徐春 Method for preparing high-purity quartz sand by iron removal based on ammonium salt complexation
CN102173425B (en) * 2010-12-28 2012-07-25 汪徐春 Method for preparing high-purity quartz sand by iron removal based on ammonium salt complexation
RU2603934C1 (en) * 2015-06-05 2016-12-10 Общество с ограниченной ответственностью "НВП Центр-ЭСТАгео" Method of cleaning quartz sands from iron
CN115028170A (en) * 2022-05-18 2022-09-09 天津臻泰科技有限公司 Method for producing low-iron siliceous raw material by combined scrubbing of fluoride-free alkali and acid

Also Published As

Publication number Publication date
SE7408765L (en) 1975-01-07
FI49018C (en) 1975-03-10
NO133662B (en) 1976-03-01
SE396368B (en) 1977-09-19
NO742438L (en) 1975-02-03
DK136596B (en) 1977-10-31
FR2235877B1 (en) 1978-03-31
DK136596C (en) 1978-04-03
NL7408803A (en) 1975-01-07
DE2431928C2 (en) 1984-04-05
DK343174A (en) 1975-03-03
BE817300A (en) 1974-11-04
FI49018B (en) 1974-12-02
FR2235877A1 (en) 1975-01-31
NO133662C (en) 1976-06-09
DE2431928A1 (en) 1975-01-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee