DE69018205D1 - Verfahren zur Herstellung einer wässrigen Kieselsäurelösung hoher Reinheit. - Google Patents

Verfahren zur Herstellung einer wässrigen Kieselsäurelösung hoher Reinheit.

Info

Publication number: DE69018205D1
Authority: DE; Germany
Prior art keywords: solution; suspension; preparation; alkali metals; high purity
Prior art date: 1989-11-30
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 - Fee Related

Application number

DE69018205T

Other languages

English (en)

Other versions

DE69018205T2 (de

Inventor

Shigeo Sasaki

Miho Kojima

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.)

EIDP Inc

Original Assignee

EI Du Pont de Nemours and Co

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.)

1989-11-30

Filing date

1990-11-29

Publication date

1995-05-04

1990-11-29 Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co

1995-05-04 Application granted granted Critical

1995-05-04 Publication of DE69018205D1 publication Critical patent/DE69018205D1/de

1995-10-12 Publication of DE69018205T2 publication Critical patent/DE69018205T2/de

2010-11-30 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/146—After-treatment of sols
- C01B33/148—Concentration; Drying; Dehydration; Stabilisation; Purification
- C01B33/1485—Stabilisation, e.g. prevention of gelling; Purification
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/02—Pure silica glass, e.g. pure fused quartz
- C03B2201/03—Impurity concentration specified

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Dispersion Chemistry (AREA)
Silicon Compounds (AREA)

DE69018205T 1989-11-30 1990-11-29 Verfahren zur Herstellung einer wässrigen Kieselsäurelösung hoher Reinheit. Expired - Fee Related DE69018205T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP1309036A JPH0717370B2 (ja)	1989-11-30	1989-11-30	高純度ケイ酸水溶液の製造方法

Publications (2)

Publication Number	Publication Date
DE69018205D1 true DE69018205D1 (de)	1995-05-04
DE69018205T2 DE69018205T2 (de)	1995-10-12

Family

ID=17988109

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69018205T Expired - Fee Related DE69018205T2 (de)	1989-11-30	1990-11-29	Verfahren zur Herstellung einer wässrigen Kieselsäurelösung hoher Reinheit.

Country Status (5)

Country	Link
US (1)	US5165905A (de)
EP (1)	EP0430685B1 (de)
JP (1)	JPH0717370B2 (de)
AT (1)	ATE120434T1 (de)
DE (1)	DE69018205T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6132618A (en) *	1998-04-16	2000-10-17	Pq Corporation	System and method for waking a computer having a plurality of power resources from a system state using a data structure
JP4504491B2 (ja) *	1999-12-28	2010-07-14	株式会社渡辺商行	高純度合成石英粉の製造方法
EP1256547A4 (de) *	1999-12-28	2005-07-13	Watanabe & Co Ltd M	Verfahren zur herstellung von kieselsäureteilchen, synthetischem quarzpulver und synthetischem quarzglass
JP2003012331A (ja) *	2001-06-27	2003-01-15	Watanabe Shoko:Kk	高純度合成石英ガラス粒子
DE10342828A1 (de) *	2003-09-17	2005-04-14	Degussa Ag	Hochreines, pyrogen hergestelltes Siliciumdioxid
KR100825514B1 (ko) *	2006-10-09	2008-04-25	한국지질자원연구원	규질이암으로부터 실리카 나노분말 제조 방법
WO2010102025A1 (en) *	2009-03-04	2010-09-10	Xerox Corporation	Structured organic films
CN102417186A (zh) *	2011-09-07	2012-04-18	黑龙江科技学院	一种新型的纳米二氧化硅粉体的制备方法
EP3759049B1 (de)	2018-03-02	2022-04-06	Pörner Ingenieurgesellschaft M.B.H.	Nachhaltige silikate und verfahren zu deren extraktion
WO2021132765A1 (ko) *	2019-12-26	2021-07-01	어업회사법인(주)제이앤씨 바이오	규조류 유래 실리카로부터 수용성 규소의 분리정제방법
CN115611284A (zh) *	2021-07-13	2023-01-17	航天特种材料及工艺技术研究所	一种制备高纯硅酸的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3668088A (en) *	1969-12-02	1972-06-06	Du Pont	Method of producing colloidal silica by electrodialysis of a silicate
US3649556A (en) *	1970-07-22	1972-03-14	Nl Industries Inc	Production of polysilicic acid by ion exchange
FR2392139A1 (fr) *	1976-03-22	1978-12-22	Diamond Shamrock Corp	Pro
US4124471A (en) *	1977-08-22	1978-11-07	Diamond Shamrock Corporation	Controlling silica sol particle size
US4387008A (en) *	1979-10-01	1983-06-07	W. R. Grace & Co.	Electrodialytic method for production of silica gel
JPS60191016A (ja) *	1984-03-12	1985-09-28	Nippon Chem Ind Co Ltd:The	高純度シリカゲル
JPS6136114A (ja) *	1984-07-30	1986-02-20	Tokuyama Soda Co Ltd	シリカ微粉体の製造方法
JPS61242910A (ja) *	1985-04-18	1986-10-29	Isao Sakai	強力消臭剤の製造方法
JPH0796447B2 (ja) *	1986-06-13	1995-10-18	モ−ゼスレイクインダストリ−ズインコ−ポレイテツド	高純度シリカの製造方法
JPS6321212A (ja) *	1986-07-14	1988-01-28	Jgc Corp	高純度シリカの製造方法
JP2535972B2 (ja) *	1987-11-11	1996-09-18	東ソー株式会社	シリカゾルの製造方法

1989
- 1989-11-30 JP JP1309036A patent/JPH0717370B2/ja not_active Expired - Lifetime
1990
- 1990-11-29 DE DE69018205T patent/DE69018205T2/de not_active Expired - Fee Related
- 1990-11-29 EP EP90312973A patent/EP0430685B1/de not_active Expired - Lifetime
- 1990-11-29 AT AT90312973T patent/ATE120434T1/de not_active IP Right Cessation
- 1990-11-30 US US07/620,054 patent/US5165905A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JPH0717370B2 (ja)	1995-03-01
ATE120434T1 (de)	1995-04-15
EP0430685A2 (de)	1991-06-05
EP0430685B1 (de)	1995-03-29
DE69018205T2 (de)	1995-10-12
JPH03174315A (ja)	1991-07-29
EP0430685A3 (en)	1992-05-20
US5165905A (en)	1992-11-24

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Legal Events

Date	Code	Title	Description
1996-04-25	8364	No opposition during term of opposition
2010-09-16	8339	Ceased/non-payment of the annual fee