CA1070629A - Procede pour modifier des biopolymeres - Google Patents

Procede pour modifier des biopolymeres

Info

Publication number
CA1070629A
CA1070629A CA264,421A CA264421A CA1070629A CA 1070629 A CA1070629 A CA 1070629A CA 264421 A CA264421 A CA 264421A CA 1070629 A CA1070629 A CA 1070629A
Authority
CA
Canada
Prior art keywords
heteropolysaccharide
solution
polymer
debris
viscosity
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
CA264,421A
Other languages
English (en)
Inventor
Allen I. Laskin
Lars A. Naslund
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Application granted granted Critical
Publication of CA1070629A publication Critical patent/CA1070629A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0033—Xanthan, i.e. D-glucose, D-mannose and D-glucuronic acid units, saubstituted with acetate and pyruvate, with a main chain of (beta-1,4)-D-glucose units; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
    • C12P19/06—Xanthan, i.e. Xanthomonas-type heteropolysaccharides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Emergency Medicine (AREA)
  • Molecular Biology (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
CA264,421A 1975-11-10 1976-10-28 Procede pour modifier des biopolymeres Expired CA1070629A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63046875A 1975-11-10 1975-11-10

Publications (1)

Publication Number Publication Date
CA1070629A true CA1070629A (fr) 1980-01-29

Family

ID=24527297

Family Applications (1)

Application Number Title Priority Date Filing Date
CA264,421A Expired CA1070629A (fr) 1975-11-10 1976-10-28 Procede pour modifier des biopolymeres

Country Status (2)

Country Link
CA (1) CA1070629A (fr)
FR (1) FR2330697A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6174524B1 (en) 1999-03-26 2001-01-16 Alcon Laboratories, Inc. Gelling ophthalmic compositions containing xanthan gum
US6261547B1 (en) 1998-04-07 2001-07-17 Alcon Manufacturing, Ltd. Gelling ophthalmic compositions containing xanthan gum
US6331540B1 (en) 1999-11-01 2001-12-18 Alcon Universal Ltd. Pharmaceutical compositions containing a fluoroquinolone antibiotic drug and xanthan gum
US6352978B1 (en) 2000-07-28 2002-03-05 Alcon Universal Ltd. Pharmaceutical compositions containing tobramycin and xanthan gum

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7907884A (nl) * 1978-11-06 1980-05-08 Pfizer Werkwijze voor de bereiding van een de beweeglijkheid regelende oplossing ten gebruike bij het winnen van olie.
GB8707250D0 (en) * 1987-03-26 1987-04-29 Allied Colloids Ltd Polysaccharides
FR2621926B1 (fr) * 1987-10-20 1991-06-21 Inst Francais Du Petrole Procede de traitement d'un mout de fermentation renfermant un polysaccharide dans le but d'en accroitre la filtrabilite et utilisation de ce mout en recuperation assistee du petrole

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1575756A (fr) * 1968-04-29 1969-07-25
US3773752A (en) * 1971-02-25 1973-11-20 Phillips Petroleum Co Recovery of microbial polysaccharides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261547B1 (en) 1998-04-07 2001-07-17 Alcon Manufacturing, Ltd. Gelling ophthalmic compositions containing xanthan gum
US6174524B1 (en) 1999-03-26 2001-01-16 Alcon Laboratories, Inc. Gelling ophthalmic compositions containing xanthan gum
US6331540B1 (en) 1999-11-01 2001-12-18 Alcon Universal Ltd. Pharmaceutical compositions containing a fluoroquinolone antibiotic drug and xanthan gum
US6352978B1 (en) 2000-07-28 2002-03-05 Alcon Universal Ltd. Pharmaceutical compositions containing tobramycin and xanthan gum

Also Published As

Publication number Publication date
FR2330697B1 (fr) 1981-05-22
FR2330697A1 (fr) 1977-06-03

Similar Documents

Publication Publication Date Title
US4299825A (en) Concentrated xanthan gum solutions
US3020206A (en) Process for synthesizing polysaccharides
US4182860A (en) Modified heteropolysaccharides and their preparation
AU598219B2 (en) Composition and method for temporarily reducing the permeability of subterranean formations
AU723115B2 (en) Stabilized fluids containing soluble zinc
US4873323A (en) Acid/heat modified polysaccharide biopolymers
US4413680A (en) Permeability reduction in subterranean reservoirs
EP0040445B1 (fr) Déplacement de fluides par des solutions d'hétéropolysaccharides et la préparation microbiologique d'hétéropolysaccharides
US4135979A (en) Treatment of xanthan gum to improve clarity
Boyle et al. Characterization of two extracellular polysaccharides from marine bacteria
US4667026A (en) Defined heat treatment, under acidic conditions, of solutions of polysaccharide biopolymers
WO1999050370A1 (fr) Derivatisation de polymeres et traitements pour puits utilisant ces polymeres
US3773752A (en) Recovery of microbial polysaccharides
US3964972A (en) Modified heteropolysaccharides
US3801502A (en) Waterflood bacterial viscosifier
CA1070629A (fr) Procede pour modifier des biopolymeres
US4977960A (en) Sodium hydroxide treatment of field water in a biopolymer complex
US4256590A (en) Modified heteropolysaccharides and their preparation
GB2250761A (en) Aqueous polysaccharide compositions and their use
EP0140725B1 (fr) Procédé de traitement d'une solution de polysaccharide et son utilisation
CA1140328A (fr) Solutions aqueuses renfermant de l'hydroxyethylcarboxyethylcellulose a liaisons transversales
CA1131625A (fr) Recuperation de gomme de xanthane
US4425246A (en) Oil recovery using stabilized saline heat-treated heteropolysaccharide solutions
US4783492A (en) Continuous permeability reduction in subterranean reservoirs
US4440225A (en) Oil recovery using modified heteropolysaccharides in buffered brine

Legal Events

Date Code Title Description
MKEX Expiry