JPS54146862A - Production of porous material - Google Patents
Production of porous materialInfo
- Publication number
- JPS54146862A JPS54146862A JP5511178A JP5511178A JPS54146862A JP S54146862 A JPS54146862 A JP S54146862A JP 5511178 A JP5511178 A JP 5511178A JP 5511178 A JP5511178 A JP 5511178A JP S54146862 A JPS54146862 A JP S54146862A
- Authority
- JP
- Japan
- Prior art keywords
- metal salt
- alkali
- alcohol
- porous material
- water
- 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
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To obtain a porous material having fine open cells made of a natural hydrophilic high polymer, by gelatinizing an alkali metal salt of pectic acid, separated upon addition of an alcohol to a solution of endodermis of citrus fruits in an alkali, with a multivalent metal salt.
CONSTITUTION: The endodermis of citrus fruits in treated with an aqueous solution (pH 1W3) adjusted ot pH 10.5W12.5 with an alkali, and dissolved. An alcohol is added to the solution to precipitate an alkali metal salt of pectic acid, which is separated and dissolved in water. The aqueous solution is made to gel with a water- soluble multivalent metal salt, and dried by heating. Methanol, ethanol, or isopropanol easily recoverable may be cited as the alcohol, and water-insoluble alcohols are not usable. The pH in acid and alkali treatment beyond the range described above cannot provide a porous material having a sufficient mechanical strength.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5511178A JPS54146862A (en) | 1978-05-09 | 1978-05-09 | Production of porous material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5511178A JPS54146862A (en) | 1978-05-09 | 1978-05-09 | Production of porous material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54146862A true JPS54146862A (en) | 1979-11-16 |
JPS578133B2 JPS578133B2 (en) | 1982-02-15 |
Family
ID=12989631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5511178A Granted JPS54146862A (en) | 1978-05-09 | 1978-05-09 | Production of porous material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146862A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991007427A1 (en) * | 1989-11-16 | 1991-05-30 | Nissei Chemical Industry Co., Ltd. | Carrier for column chromatography, process for separating and purifying water-soluble polymeric substance using said carrier, novel pectic acid-cellulose gel and process for preparing the same, and adsorbent for affinity chromatography |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5241679A (en) * | 1975-09-30 | 1977-03-31 | Matsushita Electric Works Ltd | Process for expansion molding of polyurethane |
-
1978
- 1978-05-09 JP JP5511178A patent/JPS54146862A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5241679A (en) * | 1975-09-30 | 1977-03-31 | Matsushita Electric Works Ltd | Process for expansion molding of polyurethane |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991007427A1 (en) * | 1989-11-16 | 1991-05-30 | Nissei Chemical Industry Co., Ltd. | Carrier for column chromatography, process for separating and purifying water-soluble polymeric substance using said carrier, novel pectic acid-cellulose gel and process for preparing the same, and adsorbent for affinity chromatography |
Also Published As
Publication number | Publication date |
---|---|
JPS578133B2 (en) | 1982-02-15 |
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