ES369370A1 - Improvements introduced in a procedure for the preparation of a silicone sun positively charged. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements introduced in a procedure for the preparation of a silicone sun positively charged. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES369370A1 ES369370A1 ES369370A ES369370A ES369370A1 ES 369370 A1 ES369370 A1 ES 369370A1 ES 369370 A ES369370 A ES 369370A ES 369370 A ES369370 A ES 369370A ES 369370 A1 ES369370 A1 ES 369370A1
- Authority
- ES
- Spain
- Prior art keywords
- sol
- positively charged
- aging
- sun
- translation
- 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
Links
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
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/146—After-treatment of sols
- C01B33/149—Coating
Abstract
A positively charged alumina-coated silica sol is made by mixing a negatively-charged aquasol of colloidal silica particles (e.g. 7-30 mÁ. in size) with an aqueous solution of a basic aluminium chloride, aging the sol and then raising the pH of the aged sol to 4À5-6À5 by adding NH 4 OH, an alkali or alkaline earth metal base, e.g. NaOH, KOH, LiOH, Ca(OH) 2 or Mg(OH) 2 , or a water soluble organic base, e.g. methylamine or monoethanolamine or two or more of these. When the aged sol contains 10% or less by wt. of solids, the pH may be raised to 4À5- 7À0. The molar ratio of aluminium to surface SiO a in the product may be 1 : 2 to 2 : 1. The basic aluminium chloride may be of the formula Al(OH) 2 Cl to Al 3 (OH) 8 Cl, e.g. Al 2 (OH) 5 Cl. Aging may be carried out by allowing the mixture to stand at room temperature, or by heating it at temperatures up to 100 C. or, under pressure, above 100 C., and is preferably continued till the lowered pH remains constant, generally at 4 or less. Specified aging conditions are about 2 hrs. at 60 C., about 30 mins. at 80 C. and about 15 mins. at 90 C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74571468A | 1968-07-18 | 1968-07-18 | |
| US83174869A | 1969-06-09 | 1969-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES369370A1 true ES369370A1 (en) | 1971-06-16 |
Family
ID=27114509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES369370A Expired ES369370A1 (en) | 1968-07-18 | 1969-07-10 | Improvements introduced in a procedure for the preparation of a silicone sun positively charged. (Machine-translation by Google Translate, not legally binding) |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE736238A (en) |
| DE (1) | DE1935666A1 (en) |
| ES (1) | ES369370A1 (en) |
| FR (1) | FR2016805A1 (en) |
| GB (1) | GB1265550A (en) |
| LU (1) | LU59112A1 (en) |
| NL (1) | NL6910696A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3544727A1 (en) * | 1985-12-18 | 1987-06-19 | Schock & Co Gmbh | Sink unit having a moulding in the shape of a work surface |
| SE469893B (en) | 1991-09-20 | 1993-10-04 | Eka Nobel Ab | Methods of treating a surface of carbonate-based material, silica sol for treating the material, ways of making the silica sol and material treated with the silica sol |
| SE510651C2 (en) | 1997-10-16 | 1999-06-14 | Munters Ab Carl | Process for treating, in particular, stabilizing silica gel |
| US6623820B1 (en) | 1998-06-12 | 2003-09-23 | Asahi Glass Company Ltd. | Silica-alumina composite sol, processes for producing the same, and recording medium |
| CZ299031B6 (en) * | 1999-12-20 | 2008-04-09 | Akzo Nobel N.V. | Aqueous silica-based sol, process for its preparation and use as well as process for producing paper |
| ITSV20050003A1 (en) | 2005-01-19 | 2006-07-20 | Ferrania Spa | MATERIAL FOR INKJET RECORDING |
-
1969
- 1969-07-10 ES ES369370A patent/ES369370A1/en not_active Expired
- 1969-07-11 NL NL6910696A patent/NL6910696A/xx unknown
- 1969-07-14 DE DE19691935666 patent/DE1935666A1/en active Pending
- 1969-07-16 LU LU59112D patent/LU59112A1/xx unknown
- 1969-07-16 GB GB1265550D patent/GB1265550A/en not_active Expired
- 1969-07-17 FR FR6924371A patent/FR2016805A1/fr not_active Withdrawn
- 1969-07-17 BE BE736238D patent/BE736238A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU59112A1 (en) | 1969-11-25 |
| BE736238A (en) | 1969-12-31 |
| DE1935666A1 (en) | 1970-02-26 |
| FR2016805A1 (en) | 1970-05-15 |
| NL6910696A (en) | 1970-01-20 |
| GB1265550A (en) | 1972-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES396342A1 (en) | Alcohol soluble basic aluminum chlorides and method of making same | |
| ES369370A1 (en) | Improvements introduced in a procedure for the preparation of a silicone sun positively charged. (Machine-translation by Google Translate, not legally binding) | |
| ES408286A1 (en) | Modified, precipitated alumino silicate pigments and an improved method for preparing same | |
| GB1393039A (en) | Preparation of reinforcing amorphous silica | |
| GB1030108A (en) | Aluminium hydroxide production | |
| GB1382340A (en) | Production of precipitated silica | |
| ES442519A1 (en) | Method for preparation of inorganic flocculating composition | |
| GB1356248A (en) | Silica-metal oxide co-gels | |
| GB1337752A (en) | Zeolite | |
| GB1415190A (en) | Aluminium derivatives of organoorthophosphates and their use in grelling liquid hydracarbons | |
| GB1340230A (en) | Preparation of silica of high pore volume | |
| ES8607185A1 (en) | Process for the preparation of cupric hydroxide. | |
| GB1479677A (en) | Preparation of orthosilicic acid esters | |
| GB1280397A (en) | Silica sols | |
| GB1326574A (en) | Production of stabilised dispersions of pyrogenic silica | |
| GB1356247A (en) | Silica-gels | |
| GB1271251A (en) | Water soluble silicic acid powders and their preparation | |
| GB815514A (en) | Improvements in and relating to alumina | |
| GB1305353A (en) | ||
| JPS5734015A (en) | Production of cordierite composition powder | |
| GB1297140A (en) | ||
| GB1337531A (en) | Mix for use in the production of refractory gas concrete | |
| 杨瑛 et al. | Synthesis and Characterization of the Alkali Periodate Complexes of Rare Earths: M_2LnIO_6· xH_2O | |
| GB1235690A (en) | Modified silica pigments and processes for producing the same | |
| JPS6469509A (en) | Production of silica powder of high oil absorption |