JPS5624042A - Preparation of drying agent by utilizing used cation exchange resin - Google Patents
Preparation of drying agent by utilizing used cation exchange resinInfo
- Publication number
- JPS5624042A JPS5624042A JP9869179A JP9869179A JPS5624042A JP S5624042 A JPS5624042 A JP S5624042A JP 9869179 A JP9869179 A JP 9869179A JP 9869179 A JP9869179 A JP 9869179A JP S5624042 A JPS5624042 A JP S5624042A
- Authority
- JP
- Japan
- Prior art keywords
- cation exchange
- exchange resin
- drying agent
- passed
- used cation
- 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
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 title abstract 7
- 239000003729 cation exchange resin Substances 0.000 title abstract 7
- 239000002274 desiccant Substances 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 239000003513 alkali Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Landscapes
- Drying Of Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
PURPOSE: To reutilize a used cation exchange resin which has been conventionally abandoned, as a valuable drying agent by sufficiently washing a used cation exchange resin treated by a strong acid solution and, moreover, by a strong alkali solution and, thereafter, drying the same.
CONSTITUTION: To a used cation exchange resin, a strong acid solution such as hydrogen chloride or a strong acid solution and a strong alkali solution such as NaOH is passed to remove impurities adsorbed and adhered in fine pores or to a surface of aformentioned resin particle. Subsequently, to this cation exchange resin treated by the chemical solution, a predetermined amount of water is passed to extrude said chemical solution and, succeedingly, a predetermined amount of water is passed to wash said cation exchange resin. Subsequently, the cation exchange resin completed from washing is drained and dried by air to reduce a moisture content to about 30% and, thereafter, dried at a temp. of about 110°C in the conventional dryer to lower the moisture content to 5% or less, especially, 2% or less to obtain a drying agent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9869179A JPS5624042A (en) | 1979-08-03 | 1979-08-03 | Preparation of drying agent by utilizing used cation exchange resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9869179A JPS5624042A (en) | 1979-08-03 | 1979-08-03 | Preparation of drying agent by utilizing used cation exchange resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5624042A true JPS5624042A (en) | 1981-03-07 |
Family
ID=14226524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9869179A Pending JPS5624042A (en) | 1979-08-03 | 1979-08-03 | Preparation of drying agent by utilizing used cation exchange resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5624042A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05234876A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing metal impurity from resist component |
| JPH05234878A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing impurities from resist component |
| JPH05234877A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing metallic impurities from resist components |
| JPH08503983A (en) * | 1992-11-25 | 1996-04-30 | ヘキスト、セラニーズ、コーポレーション | Reduction of metal ions in bottom antireflective coatings for photoresists |
| JPH08504279A (en) * | 1992-07-10 | 1996-05-07 | ヘキスト、セラニーズ、コーポレーション | Reduction of metal ion content in top anti-reflective coatings for photoresists |
-
1979
- 1979-08-03 JP JP9869179A patent/JPS5624042A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05234876A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing metal impurity from resist component |
| JPH05234878A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing impurities from resist component |
| JPH05234877A (en) * | 1991-09-03 | 1993-09-10 | Ocg Microelectron Materials Inc | Method for removing metallic impurities from resist components |
| JPH08504279A (en) * | 1992-07-10 | 1996-05-07 | ヘキスト、セラニーズ、コーポレーション | Reduction of metal ion content in top anti-reflective coatings for photoresists |
| JPH08503983A (en) * | 1992-11-25 | 1996-04-30 | ヘキスト、セラニーズ、コーポレーション | Reduction of metal ions in bottom antireflective coatings for photoresists |
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