GB363353A - Process for the treatment of marine algae - Google Patents

Process for the treatment of marine algae

Info

Publication number
GB363353A
GB363353A GB26664/30A GB2666430A GB363353A GB 363353 A GB363353 A GB 363353A GB 26664/30 A GB26664/30 A GB 26664/30A GB 2666430 A GB2666430 A GB 2666430A GB 363353 A GB363353 A GB 363353A
Authority
GB
United Kingdom
Prior art keywords
treated
salts
carbonate
alg
cold
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.)
Expired
Application number
GB26664/30A
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.)
CIE FRANCAISE de l IODE ET DE
Original Assignee
CIE FRANCAISE de l IODE ET DE
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 CIE FRANCAISE de l IODE ET DE filed Critical CIE FRANCAISE de l IODE ET DE
Publication of GB363353A publication Critical patent/GB363353A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/13—Iodine; Hydrogen iodide
    • C01B7/14—Iodine
    • C01B7/16—Preparation from seaweed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Marine alg are ground up and treated with a solution of an alkaline earth salt, e.g. calcium chloride, and soluble salts, such as iodides, are then extracted with cold or hot water. In both processes it is preferred that the fresh treating liquid should first come into contact with the most fully treated material. The washes charged with salts are clarified by boiling with an alkali carbonate, which precipitates the lime or other earth as carbonate. After filtration, the purified wash liquor is concentrated, and the various salts crystallized out. The calcic alg are macerated in the cold with water acidulated with sulphuric acid, then separated and washed with water, and treated with a lye of caustic soda, carbonate of soda, or magnesia. A viscous solution of the metal alginate is obtained. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the alkaline alginate may be treated with a strong acid to precipitate alginic acid, and that insoluble alginates may be obtained by double decomposition with suitable salts. This subject-matter does not appear in the Specification as accepted.ALSO:Marine alg are ground up and treated with a solution of an alkaline-earth salt, e.g. calcium chloride, and soluble salts, such as iodides, are then extracted with cold or hot water. In both processes it is preferred that the fresh treating liquid should first come into contact with the most fully treated material. The washes charged with salts are clarified by boiling with an alkali carbonate, which precipitates the lime or other earth as carbonate. After filtration, the purified wash liquor is concentrated, and the various salts crystallized out. The calcic alg are macerated in the cold with water acidulated with sulphuric acid, then separated and washed with water, and treated with a lye of caustic soda, carbonate of soda, or magnesia. A viscous solution of the metal alginate is obtained. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the alkaline alginate may be treated with a strong acid to precipitate alginic acid, and that insoluble alginates may be obtained by double decomposition with suitable salts. This subject-matter does not appear in the Specification as accepted.
GB26664/30A 1929-09-06 1930-09-06 Process for the treatment of marine algae Expired GB363353A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR363353X 1929-09-06

Publications (1)

Publication Number Publication Date
GB363353A true GB363353A (en) 1931-12-07

Family

ID=8894127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26664/30A Expired GB363353A (en) 1929-09-06 1930-09-06 Process for the treatment of marine algae

Country Status (1)

Country Link
GB (1) GB363353A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516023A (en) * 1946-04-22 1950-07-18 Krim Ko Corp Treatment of irish moss
US3288613A (en) * 1963-05-23 1966-11-29 Gen Electric Preparation of algae as human food
FR2588261A1 (en) * 1985-10-03 1987-04-10 Secconi Georges Process for treating marine phanerogams and the products obtained: proteins, alginates, cellulose, marine peat, industrial fillers
EP0565920A1 (en) * 1992-04-16 1993-10-20 CARTIERA FAVINI S.p.A. Procedure for manufacturing paper from seaweed and paper thus obtained
CN102153052A (en) * 2011-02-25 2011-08-17 湖南省轻盐科技有限公司 Method for extracting algae iodine by using calcium ion sedimentation and producing algae iodine salt using same
WO2012010181A1 (en) 2010-07-19 2012-01-26 Benvegnu Francesco Marine plants processing method for the production of pulp for the production of paper

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516023A (en) * 1946-04-22 1950-07-18 Krim Ko Corp Treatment of irish moss
US3288613A (en) * 1963-05-23 1966-11-29 Gen Electric Preparation of algae as human food
FR2588261A1 (en) * 1985-10-03 1987-04-10 Secconi Georges Process for treating marine phanerogams and the products obtained: proteins, alginates, cellulose, marine peat, industrial fillers
EP0565920A1 (en) * 1992-04-16 1993-10-20 CARTIERA FAVINI S.p.A. Procedure for manufacturing paper from seaweed and paper thus obtained
US5472569A (en) * 1992-04-16 1995-12-05 Cartiera Favini S.P.A. Paper comprising cellulose fiber and seaweed particles in integral form
US5567275A (en) * 1992-04-16 1996-10-22 Cartiera Favini S.P.A. Process for manufacturing paper from seaweed
WO2012010181A1 (en) 2010-07-19 2012-01-26 Benvegnu Francesco Marine plants processing method for the production of pulp for the production of paper
CN102153052A (en) * 2011-02-25 2011-08-17 湖南省轻盐科技有限公司 Method for extracting algae iodine by using calcium ion sedimentation and producing algae iodine salt using same
CN102153052B (en) * 2011-02-25 2012-09-19 湖南盐业股份有限公司 Method for extracting algae iodine by using calcium ion sedimentation and produced alginate using same

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