JPS6430640A - Method for regenerating cristobalite - Google Patents
Method for regenerating cristobaliteInfo
- Publication number
- JPS6430640A JPS6430640A JP18802887A JP18802887A JPS6430640A JP S6430640 A JPS6430640 A JP S6430640A JP 18802887 A JP18802887 A JP 18802887A JP 18802887 A JP18802887 A JP 18802887A JP S6430640 A JPS6430640 A JP S6430640A
- Authority
- JP
- Japan
- Prior art keywords
- cristobalite
- soln
- contact
- acidic
- alkaline
- 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
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
PURPOSE:To repeatedly use cristobalite with a simple operation and to prevent an increase in the running cost by bringing the cristobalite on which impurities are adsorbed into contact with an acidic soln. and/or an alkaline soln. CONSTITUTION:The cristobalite, on which the contaminant such as colloid and suspended matter, pigments, odorants, etc., are adsorbed, is brought into contact with an acidic soln. and/or an alkaline soln., and regenerated. When regeneration is carried out by using the acidic soln., an org. solvent contg. >=0.1wt.% acid is appropriately used. In addition, the cristobalite is appropriately brought into contact with the alkaline soln. under the conditions where the amt. of the dissolved silicic acid is controlled to <=5% of the used cristobalite. Concretely, the cristobalite is regenerated, for example, by bringing the cristobalite after adsorbing impurities into contact firstly with the acidic soln. and successively with the alkaline soln.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18802887A JPS6430640A (en) | 1987-07-28 | 1987-07-28 | Method for regenerating cristobalite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18802887A JPS6430640A (en) | 1987-07-28 | 1987-07-28 | Method for regenerating cristobalite |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6430640A true JPS6430640A (en) | 1989-02-01 |
JPH0423579B2 JPH0423579B2 (en) | 1992-04-22 |
Family
ID=16216399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18802887A Granted JPS6430640A (en) | 1987-07-28 | 1987-07-28 | Method for regenerating cristobalite |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430640A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5391806A (en) * | 1991-06-21 | 1995-02-21 | Mitsui Toatsu Chemicals, Incorporated | Heat-sensitive recording materials and phenol compounds |
-
1987
- 1987-07-28 JP JP18802887A patent/JPS6430640A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5391806A (en) * | 1991-06-21 | 1995-02-21 | Mitsui Toatsu Chemicals, Incorporated | Heat-sensitive recording materials and phenol compounds |
Also Published As
Publication number | Publication date |
---|---|
JPH0423579B2 (en) | 1992-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB9115018D0 (en) | Purification of solutions | |
IL93978A0 (en) | Crystalline 2-o-alpha-d-glucopyranosyl-l-ascorbic acid,its preparation and use | |
ZA966508B (en) | Method for the regeneration of a catalyst. | |
EP0140007A3 (en) | Passivation of vanadium accumulated on inert or catalytic solid fluidizable particles | |
EP0323646A3 (en) | Method of separating a higher vapor pressure component and/or particulate matter from a lower vapor pressure component | |
ES394185A1 (en) | Process for removing pollutants from gas streams | |
DE3864154D1 (en) | ASH SEPARATION OF REGENERATED ADSORPTION AGENT. | |
DE3768588D1 (en) | USE OF AN ADSORPTION AGENT FOR REMOVING VINYLPYRROLIDONE FROM VINYLPYRROLIDONE POLYMERISATE SOLUTIONS. | |
CA2012544A1 (en) | Process for refining glyceride oil using silica hydrogel | |
AU533379B2 (en) | Preserving planographic printing forms | |
AU2440688A (en) | Method for separating metal contaminants from organic polymers | |
JPS6430640A (en) | Method for regenerating cristobalite | |
JPS5290778A (en) | Disc brake for vehicle | |
AU8666391A (en) | Method for obtaining acetic acid derivatives | |
DE59303465D1 (en) | Process for reactivating an activated carbon catalyst used in the production of 1,1,1,2,3,3,3-heptafluoropropane (R 227) | |
AU6263286A (en) | Method of removing metal contaminants from solutions | |
IE790243L (en) | Cleaning and regenerating filters | |
FR2453211A1 (en) | Regeneration of used lubricating oil - by ultrafiltration and treatment with silica adsorbent | |
AU640841B2 (en) | Process for the purification of white phosphorus | |
DK0569568T3 (en) | Process for the regeneration of PVPP and the use of an oxidizing agent for the regeneration | |
JPS5478388A (en) | Regenerating method for synthetic adsorbing resin | |
JPS57177328A (en) | Treatment of malodorant gas | |
DE3165546D1 (en) | Process for refining electric insulating liquids | |
GB2004533A (en) | Treating wastewaters with an adsorbent and a rotating biological contactor | |
SU712114A1 (en) | Method of purifying pyrogas |