JPS5622650A - Manufacture of porous glass - Google Patents
Manufacture of porous glassInfo
- Publication number
- JPS5622650A JPS5622650A JP9955179A JP9955179A JPS5622650A JP S5622650 A JPS5622650 A JP S5622650A JP 9955179 A JP9955179 A JP 9955179A JP 9955179 A JP9955179 A JP 9955179A JP S5622650 A JPS5622650 A JP S5622650A
- Authority
- JP
- Japan
- Prior art keywords
- liq
- elution
- hcl
- boiling
- phase
- 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.)
- Pending
Links
Abstract
PURPOSE:To obtain porous glass having a uniform pore distribution by carrying out the elution of phase separated glass consisting of soft phase which is eluted in a hot aqueous soln. and hard phase free from elution while boiling an acid soln. CONSTITUTION:Jig 13 of Teflon, quartz glass or the like for guiding a liq. flow and supporting sample 12 is set in container 11 of quartz glass or the like. Sample 12 is phase separated glass consisting of soft phase which is eluted in a hot aqueous soln. and hard phase free from elution. Mantle heater 14 is placed aroung container 11, and thermomagnestir 15B carrying out heating while rotating atirrer 15A is placed under container 11. An acid soln. as leaching liq. 16A is injected into the tube of jig 13 at a constant rate. Liq. 16A passes through tube 13 and flows in the direction of arrows 16B, 16C while being heated and stirred, and it leaves the system by overflow 16D. At this time, liq. 16A is heated so that it is bubbled by boiling in the flow after 16B. The boiling temp. is 107 deg.C, 105 deg.C and 102 deg.C in case of 3N HCl, 2N HCl and 1N HCl, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9955179A JPS5622650A (en) | 1979-08-03 | 1979-08-03 | Manufacture of porous glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9955179A JPS5622650A (en) | 1979-08-03 | 1979-08-03 | Manufacture of porous glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5622650A true JPS5622650A (en) | 1981-03-03 |
Family
ID=14250305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9955179A Pending JPS5622650A (en) | 1979-08-03 | 1979-08-03 | Manufacture of porous glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5622650A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6190822A (en) * | 1984-10-11 | 1986-05-09 | Mitsubishi Electric Corp | Electric discharge machining |
| JPS61188021A (en) * | 1985-02-18 | 1986-08-21 | Techno Fine Houden Gijutsu Kenkyusho:Kk | Servoing method and device of discharge gap distance in electric discharge machining |
| US4748121A (en) * | 1984-11-30 | 1988-05-31 | Ppg Industries, Inc. | Porous glass fibers with immobilized biochemically active material |
-
1979
- 1979-08-03 JP JP9955179A patent/JPS5622650A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6190822A (en) * | 1984-10-11 | 1986-05-09 | Mitsubishi Electric Corp | Electric discharge machining |
| US4748121A (en) * | 1984-11-30 | 1988-05-31 | Ppg Industries, Inc. | Porous glass fibers with immobilized biochemically active material |
| JPS61188021A (en) * | 1985-02-18 | 1986-08-21 | Techno Fine Houden Gijutsu Kenkyusho:Kk | Servoing method and device of discharge gap distance in electric discharge machining |
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