JPS56104902A - Production of water-soluble high-molecular weight compound - Google Patents

Production of water-soluble high-molecular weight compound

Info

Publication number
JPS56104902A
JPS56104902A JP795980A JP795980A JPS56104902A JP S56104902 A JPS56104902 A JP S56104902A JP 795980 A JP795980 A JP 795980A JP 795980 A JP795980 A JP 795980A JP S56104902 A JPS56104902 A JP S56104902A
Authority
JP
Japan
Prior art keywords
precipitate
liquid
added
compd
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.)
Pending
Application number
JP795980A
Other languages
Japanese (ja)
Inventor
Fumio Kasahara
Isamasa Kuroiwa
Manpei Kasahara
Masatoshi Takamura
Kiyoshi Tsukamoto
Mitsugi Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KIMITSU KAGAKU KENKYUSHO KK
Original Assignee
KIMITSU KAGAKU KENKYUSHO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KIMITSU KAGAKU KENKYUSHO KK filed Critical KIMITSU KAGAKU KENKYUSHO KK
Priority to JP795980A priority Critical patent/JPS56104902A/en
Publication of JPS56104902A publication Critical patent/JPS56104902A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

PURPOSE: To obtain the titled compd. without the necessity of a filtration step, by a method wherein a fine powder of brown algae is dissolved in an alkaline liquid, an acid is added to the resulting liquid or a bivalent or polyvalent metal salt other than Mg is added to the liquid to obtain a precipitate, and a compd. composed mainly of an alkali metal alginate is produced from the precipitate by a conventional method.
CONSTITUTION: Brown algae is pulverized to a particle size of 100 mesh or above. The resulting powder is dissolved in an alkaline liquid having a pH or 9 or higher. An acid is added to the resulting alkaline liquid to precipitate alginic acid. Alternatively, a bivalent or polyvalent metal salt other than Mg is added to said liquid to precipitate a water-insoluble metal salt of alginic acid. Then a compd. composed mainly of an alkali metal alginate is produced from the precipitate by a conventional method. In this way, a product which can be used as well as the purified alkali metal alginate, can be obtd. at low cost without the necessity of a filtration step.
COPYRIGHT: (C)1981,JPO&Japio
JP795980A 1980-01-26 1980-01-26 Production of water-soluble high-molecular weight compound Pending JPS56104902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP795980A JPS56104902A (en) 1980-01-26 1980-01-26 Production of water-soluble high-molecular weight compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP795980A JPS56104902A (en) 1980-01-26 1980-01-26 Production of water-soluble high-molecular weight compound

Publications (1)

Publication Number Publication Date
JPS56104902A true JPS56104902A (en) 1981-08-21

Family

ID=11680017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP795980A Pending JPS56104902A (en) 1980-01-26 1980-01-26 Production of water-soluble high-molecular weight compound

Country Status (1)

Country Link
JP (1) JPS56104902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001004187A1 (en) * 1999-07-12 2001-01-18 Cognis Deutschland Gmbh Preparations that are devoid of cross-linking agents
JP2006307204A (en) * 2005-03-30 2006-11-09 National Institute Of Advanced Industrial & Technology Acidic polysaccharide inorganic salt, acidic polysaccharide inorganic salt retaining seaweed, and method for producing them
JP2006307205A (en) * 2005-03-30 2006-11-09 National Institute Of Advanced Industrial & Technology Acidic polysaccharide inorganic salt, acidic polysaccharide inorganic salt retaining adsorbent, and methods for producing them

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001004187A1 (en) * 1999-07-12 2001-01-18 Cognis Deutschland Gmbh Preparations that are devoid of cross-linking agents
JP2006307204A (en) * 2005-03-30 2006-11-09 National Institute Of Advanced Industrial & Technology Acidic polysaccharide inorganic salt, acidic polysaccharide inorganic salt retaining seaweed, and method for producing them
JP2006307205A (en) * 2005-03-30 2006-11-09 National Institute Of Advanced Industrial & Technology Acidic polysaccharide inorganic salt, acidic polysaccharide inorganic salt retaining adsorbent, and methods for producing them

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