JPS6472913A - Production of stable colloidal silica - Google Patents

Production of stable colloidal silica

Info

Publication number
JPS6472913A
JPS6472913A JP22837787A JP22837787A JPS6472913A JP S6472913 A JPS6472913 A JP S6472913A JP 22837787 A JP22837787 A JP 22837787A JP 22837787 A JP22837787 A JP 22837787A JP S6472913 A JPS6472913 A JP S6472913A
Authority
JP
Japan
Prior art keywords
soln
colloidal silica
amt
particle size
silicic acid
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
JP22837787A
Other languages
Japanese (ja)
Other versions
JPH0457604B2 (en
Inventor
Kuniaki Maejima
Takashi Shindo
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 Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
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 Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP22837787A priority Critical patent/JPS6472913A/en
Publication of JPS6472913A publication Critical patent/JPS6472913A/en
Publication of JPH0457604B2 publication Critical patent/JPH0457604B2/ja
Granted legal-status Critical Current

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  • Silicon Compounds (AREA)

Abstract

PURPOSE:To obtain colloidal silica having a small particle size and maintaining stability over a long period even in the absence of alkali ions by subjecting an aq. sodium silicate soln. to ion exchange treatment, adding sodium aluminate to the resulting active silicic acid soln. in specified two stages and treating the soln. CONSTITUTION:An aq. sodium silicate soln. is subjected to ion exchange treatment to prepare an active silicic acid soln. Sodium aluminate is added to the silicic acid soln. so that the amt. of Al2O3 is regulated to 0.3-1.5% of the amt. of SiO2, and the soln. is adjusted to pH8-10 and heated to form colloidal silica having <=10nm particle size. Sodium aluminate is then added to the colloidal silica soln. so that the amt. of Al2O3 is regulated to 3/D-15/D% (D is the particle size of the silica) of the amt. of SiO2. Thus, stable colloidal silica suitable for a catalyst, paint, etc., is obtd.
JP22837787A 1987-09-14 1987-09-14 Production of stable colloidal silica Granted JPS6472913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22837787A JPS6472913A (en) 1987-09-14 1987-09-14 Production of stable colloidal silica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22837787A JPS6472913A (en) 1987-09-14 1987-09-14 Production of stable colloidal silica

Publications (2)

Publication Number Publication Date
JPS6472913A true JPS6472913A (en) 1989-03-17
JPH0457604B2 JPH0457604B2 (en) 1992-09-14

Family

ID=16875511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22837787A Granted JPS6472913A (en) 1987-09-14 1987-09-14 Production of stable colloidal silica

Country Status (1)

Country Link
JP (1) JPS6472913A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005126281A (en) * 2003-10-23 2005-05-19 Tosoh Silica Corp Amorphous silica
JP2007269612A (en) * 2006-03-31 2007-10-18 Tokuyama Corp Silica-based composite oxide fine particles and method for producing the same
JP2009018960A (en) * 2006-04-04 2009-01-29 Nalco Co Production and use of polysilicate particulate material
JP2011042522A (en) * 2009-08-20 2011-03-03 Nippon Chem Ind Co Ltd Colloidal silica and method for manufacturing the same
JP4885216B2 (en) * 2005-07-05 2012-02-29 エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト Expandable reel mandrel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005126281A (en) * 2003-10-23 2005-05-19 Tosoh Silica Corp Amorphous silica
JP4885216B2 (en) * 2005-07-05 2012-02-29 エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト Expandable reel mandrel
JP2007269612A (en) * 2006-03-31 2007-10-18 Tokuyama Corp Silica-based composite oxide fine particles and method for producing the same
JP2009018960A (en) * 2006-04-04 2009-01-29 Nalco Co Production and use of polysilicate particulate material
JP2011042522A (en) * 2009-08-20 2011-03-03 Nippon Chem Ind Co Ltd Colloidal silica and method for manufacturing the same

Also Published As

Publication number Publication date
JPH0457604B2 (en) 1992-09-14

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