EP0707601A1 - Procede de fabrication de polygalactomannanes carboxymethyles - Google Patents

Procede de fabrication de polygalactomannanes carboxymethyles

Info

Publication number
EP0707601A1
EP0707601A1 EP94919614A EP94919614A EP0707601A1 EP 0707601 A1 EP0707601 A1 EP 0707601A1 EP 94919614 A EP94919614 A EP 94919614A EP 94919614 A EP94919614 A EP 94919614A EP 0707601 A1 EP0707601 A1 EP 0707601A1
Authority
EP
European Patent Office
Prior art keywords
alkali metal
chloroacetic acid
polygalactomannans
metal hydroxide
metered
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.)
Ceased
Application number
EP94919614A
Other languages
German (de)
English (en)
Inventor
Peter Horlacher
Andreas Sander
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.)
Gruenau Illertissen GmbH
Original Assignee
Chemische Fabrik Gruenau AG
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 Chemische Fabrik Gruenau AG filed Critical Chemische Fabrik Gruenau AG
Publication of EP0707601A1 publication Critical patent/EP0707601A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/52—Liquid products; Solid products in the form of powders, flakes or granules for making liquid products ; Finished or semi-finished solid products, frozen granules
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/238—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from seeds, e.g. locust bean gum or guar gum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
    • C08B37/0096—Guar, guar gum, guar flour, guaran, i.e. (beta-1,4) linked D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from Cyamopsis Tetragonolobus; Derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G2200/00—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents
    • A23G2200/06—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF containing organic compounds, e.g. synthetic flavouring agents containing beet sugar or cane sugar if specifically mentioned or containing other carbohydrates, e.g. starches, gums, alcohol sugar, polysaccharides, dextrin or containing high or low amount of carbohydrate
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

  • the invention relates to a continuous process for the carboxymethylation of galacto annanes. This is done in an extruder.
  • the invention thus relates to a process for the preparation of carboxymethylated polygalactomannans by reacting polygalactomannans with alkali salts of chloroacetic acid in the presence of at least molar amounts of alkali metal hydroxide, characterized in that polygalactomannans, alkali metal hydroxide and chloroacetic acid are added in a continuous manner and / or introduces their alkali metal salts in the presence of water into an extrusion machine, subject them to intensive mixing and removing the product after it has passed through the extrusion machine for drying or further processing.
  • carboxymethylate polygalactomannans in extruders.
  • Devices with one or more screws that can run in the same direction or in opposite directions are suitable as extruders. Double-screw extruders running in the same direction are particularly suitable.
  • the polygalactomannans, the Alkali hydroxide and chloroacetic acid or its alkali metal salts are metered in simultaneously or in succession.
  • the polygalactomannan is added to the head of the machine.
  • Alkali metal hydroxide is then added simultaneously or downstream. It is preferred to use sodium hydroxide as the alkali metal hydroxide and this as an aqueous preparation, i.e. Use sodium hydroxide solution with 20 to 70 wt .-% NaOH content.
  • Chloroacetic acid or an alkali metal salt of chloroacetic acid, preferably sodium chloroacetate, is then added simultaneously or downstream.
  • polygalactomannan and alkali metal hydroxide are added simultaneously and metered in downstream, for example 2 to 5 D downstream, of chloroacetic acid or the chloroacetic acid alkali metal salt, in particular chloroacetic acid sodium salt.
  • chloroacetic acid by this method, the amount of alkali hydroxide is 2 to 2.5 moles per mole of chloroacetic acid.
  • the amount of alkali metal hydroxide is 1 to 1.5 moles of alkali metal hydroxide per mole of salt.
  • the sodium monochloroacetate or monochloroacetic acid can be added in solid form together with the alkali metal hydroxide and the polygalactomannan.
  • the first three substances mentioned are preferably added downstream as an aqueous solution or suspension. It is preferred to provide the addition of the aqueous sodium monochloroacetate or monochloroacetic acid solution after the addition of alkali metal hydroxide.
  • the process according to the invention is carried out at temperatures between 60 and 150 ° C., preferably at temperatures between 70 and 120 ° C.
  • a suitable neutralizing agent is, for example, acetic acid, but inorganic acids can also be used or other solid or liquid mono- or polybasic carboxylic acids are used.
  • degrees of substitution of 0.03 to 3.0 carboxymethyl groups per anhydro sugar unit can be set.
  • Products with a degree of substitution of 0.1 to 0.5 carboxymethyl groups per anhydro sugar unit are preferred.
  • the person skilled in the art only has to calculate the amount of chloroacetic acid or its alkali salt per anhydroglucose unit and take the conversion (based on chloroacetic acid) into account.
  • guar e.g. B. guar flour or guar splits
  • guar gum 1.2-polygalactomannan
  • locust bean gum 1.4-polygalacto annan
  • the products according to the invention have the advantage of a higher molecular weight compared to products produced batchwise from powders in boilers weight, they are obtained with greater purity and are more uniform in their composition.
  • the method according to the invention offers economic advantages.
  • the products according to the invention are used in numerous very different branches of industry. They can be used, for example, in the textile industry as a thickening agent or, after molecular weight reduction, as a sizing agent, in the paper industry as a mass additive in paper manufacture and in the food industry for stabilizing ice cream, soups, sauces and the like.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Textile Engineering (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Nutrition Science (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

L'invention a pour but, dans un procédé de fabrication de polygalactomannanes, d'améliorer, en mode continu, les propriétés de viscosité. Conformément à l'invention, ce but est atteint grâce au fait qu'on introduit en continu, dans une extrudeuse, en présence d'eau, des polygalactomannanes, un hydroxyde alcalin et de l'acide chloracétique et/ou ses sels de métaux alcalins, on soumet la masse à un mélange forcé intensif et on soutire le produit après son passage à travers l'extrudeuse, en vue de son séchage et de sa transformation ultérieure.
EP94919614A 1993-06-16 1994-06-07 Procede de fabrication de polygalactomannanes carboxymethyles Ceased EP0707601A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4319915 1993-06-16
DE4319915A DE4319915A1 (de) 1993-06-16 1993-06-16 Verfahren zur Herstellung von carboxymethylierten Polygalaktomannanen
PCT/EP1994/001845 WO1994029353A1 (fr) 1993-06-16 1994-06-07 Procede de fabrication de polygalactomannanes carboxymethyles

Publications (1)

Publication Number Publication Date
EP0707601A1 true EP0707601A1 (fr) 1996-04-24

Family

ID=6490441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94919614A Ceased EP0707601A1 (fr) 1993-06-16 1994-06-07 Procede de fabrication de polygalactomannanes carboxymethyles

Country Status (3)

Country Link
EP (1) EP0707601A1 (fr)
DE (1) DE4319915A1 (fr)
WO (1) WO1994029353A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020552A1 (de) * 2005-05-03 2006-11-09 Degussa Ag Verfahren zur chemischen Modifizierung von Polysacchariden
DE102005020551A1 (de) 2005-05-03 2006-11-09 Degussa Ag Feste, redispergierbare Emulsion
US20070261998A1 (en) * 2006-05-04 2007-11-15 Philip Crane Modified polysaccharides for depressing floatable gangue minerals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520161A (en) * 1946-04-25 1950-08-29 Gen Mills Inc Carboxyalkyl ethers of carbohydrate gums
US3855149A (en) * 1972-11-13 1974-12-17 Patterson Co C Method of increasing cold water solubility of locust bean gum
DE4137237A1 (de) * 1991-11-13 1993-05-19 Gruenau Gmbh Chem Fab Kontinuierliches verfahren zum abbau von heteropolysacchariden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9429353A1 *

Also Published As

Publication number Publication date
WO1994029353A1 (fr) 1994-12-22
DE4319915A1 (de) 1994-12-22

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