FR2235877A1 - - Google Patents
Info
- Publication number
- FR2235877A1 FR2235877A1 FR7423508A FR7423508A FR2235877A1 FR 2235877 A1 FR2235877 A1 FR 2235877A1 FR 7423508 A FR7423508 A FR 7423508A FR 7423508 A FR7423508 A FR 7423508A FR 2235877 A1 FR2235877 A1 FR 2235877A1
- Authority
- FR
- France
- 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI732168A FI49018C (fi) | 1973-07-05 | 1973-07-05 | Menetelmä kvartsihiekan puhdistamiseksi erilaisista epäpuhtauksista, e rityisesti rautayhdisteistä. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2235877A1 true FR2235877A1 (enrdf_load_stackoverflow) | 1975-01-31 |
| FR2235877B1 FR2235877B1 (enrdf_load_stackoverflow) | 1978-03-31 |
Family
ID=8506752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7423508A Expired FR2235877B1 (enrdf_load_stackoverflow) | 1973-07-05 | 1974-07-05 |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE817300A (enrdf_load_stackoverflow) |
| DE (1) | DE2431928C2 (enrdf_load_stackoverflow) |
| DK (1) | DK136596B (enrdf_load_stackoverflow) |
| FI (1) | FI49018C (enrdf_load_stackoverflow) |
| FR (1) | FR2235877B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1454577A (enrdf_load_stackoverflow) |
| NL (1) | NL7408803A (enrdf_load_stackoverflow) |
| NO (1) | NO133662C (enrdf_load_stackoverflow) |
| SE (1) | SE396368B (enrdf_load_stackoverflow) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3040385C2 (de) * | 1980-10-25 | 1985-02-21 | Heraeus Quarzschmelze Gmbh, 6450 Hanau | Vorrichtung zur kontinuierlichen Oberflächenreinigung von Quarzkristallstücken |
| DE3246121A1 (de) * | 1982-12-13 | 1984-06-14 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum herstellen von borfreiem siliziumdioxid |
| US4818510A (en) * | 1985-10-21 | 1989-04-04 | Quartz Technology, Inc. | Modified close fraction batch process for purification of SiO2 |
| DE102008004873A1 (de) * | 2008-01-17 | 2009-08-06 | Siemens Aktiengesellschaft | Verfahren zum Behandeln und Verfestigen von Quarzsand durch Aktivieren, verfestigter Quarzsandkörper sowie Überstrom-Schutzeinrichtungen |
| CN102173425B (zh) * | 2010-12-28 | 2012-07-25 | 汪徐春 | 一种铵盐络合法除铁以制备高纯石英砂的方法 |
| RU2603934C1 (ru) * | 2015-06-05 | 2016-12-10 | Общество с ограниченной ответственностью "НВП Центр-ЭСТАгео" | Способ очистки кварцевых песков от железа |
| CN108658083A (zh) * | 2018-06-26 | 2018-10-16 | 广西浙缘农业科技有限公司 | 一种高纯石英砂的制备方法 |
| CN115028170A (zh) * | 2022-05-18 | 2022-09-09 | 天津臻泰科技有限公司 | 一种无氟碱酸联合擦洗生产低铁硅质原料的方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE512563A (enrdf_load_stackoverflow) * |
-
1973
- 1973-07-05 FI FI732168A patent/FI49018C/fi active
-
1974
- 1974-06-26 DK DK343174AA patent/DK136596B/da not_active IP Right Cessation
- 1974-06-26 GB GB2836674A patent/GB1454577A/en not_active Expired
- 1974-06-28 NL NL7408803A patent/NL7408803A/xx not_active Application Discontinuation
- 1974-07-03 SE SE7408765A patent/SE396368B/xx unknown
- 1974-07-03 DE DE2431928A patent/DE2431928C2/de not_active Expired
- 1974-07-04 NO NO742438A patent/NO133662C/no unknown
- 1974-07-05 BE BE146259A patent/BE817300A/xx not_active IP Right Cessation
- 1974-07-05 FR FR7423508A patent/FR2235877B1/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE512563A (enrdf_load_stackoverflow) * |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7408765L (enrdf_load_stackoverflow) | 1975-01-07 |
| NO133662C (enrdf_load_stackoverflow) | 1976-06-09 |
| DK343174A (enrdf_load_stackoverflow) | 1975-03-03 |
| SE396368B (sv) | 1977-09-19 |
| NO742438L (enrdf_load_stackoverflow) | 1975-02-03 |
| FI49018C (fi) | 1975-03-10 |
| FR2235877B1 (enrdf_load_stackoverflow) | 1978-03-31 |
| DE2431928C2 (de) | 1984-04-05 |
| DE2431928A1 (de) | 1975-01-23 |
| DK136596B (da) | 1977-10-31 |
| DK136596C (enrdf_load_stackoverflow) | 1978-04-03 |
| NL7408803A (nl) | 1975-01-07 |
| BE817300A (fr) | 1974-11-04 |
| GB1454577A (en) | 1976-11-03 |
| FI49018B (enrdf_load_stackoverflow) | 1974-12-02 |
| NO133662B (enrdf_load_stackoverflow) | 1976-03-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |