GB1167747A - Precipitation of Polymeric Hydroxyl Compounds - Google Patents

Precipitation of Polymeric Hydroxyl Compounds

Info

Publication number
GB1167747A
GB1167747A GB51190/66A GB5119066A GB1167747A GB 1167747 A GB1167747 A GB 1167747A GB 51190/66 A GB51190/66 A GB 51190/66A GB 5119066 A GB5119066 A GB 5119066A GB 1167747 A GB1167747 A GB 1167747A
Authority
GB
United Kingdom
Prior art keywords
hydroxyl compounds
polymeric hydroxyl
base
added
solution
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
GB51190/66A
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.)
Ashland LLC
Original Assignee
Ashland Oil Inc
Ashland Oil and Refining Co Inc
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 Ashland Oil Inc, Ashland Oil and Refining Co Inc filed Critical Ashland Oil Inc
Publication of GB1167747A publication Critical patent/GB1167747A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
    • C08B11/22—Isolation
    • 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
    • C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Materials Engineering (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Sustainable Development (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

1,167,747. Recovering polymeric hydroxyl compounds. ASHLAND OIL & REFINING CO. 15 Nov., 1966 [16 Nov., 1965], No. 51190/66. Headings C3P and C3U. Polymeric hydroxyl compounds, e.g. PVA or polysaccharides other than dextrans, are recovered from their aqueous solutions by (a) adding to the solution a base so as to impart an alkaline pH thereto, (b) adding to the solution before, during or after pH adjustment a soluble salt of a Group IIA or transition metal of the Periodic Table according to Mendeleef and (c) recovering the precipitate of polymeric hydroxyl compounds thus formed, the base added at step (a) not having an ability to complex with the added metal cation. Suitable cations are Fe<SP>+++</SP>, Cu<SP>++</SP>, Zn++, Ni<SP>++</SP> and Ca<SP>++</SP>. From 1-30% by wt. of cation may be used, based on the polymer, whose solution may be of 0À01-50% concentration. The added base may be organic or inorganic; NaOH is preferred. A specified polysaccharide is made by the fermentation of sorghum flour and NaH 2 PO 3 , using Xanthomonas Campestris.
GB51190/66A 1965-11-16 1966-11-15 Precipitation of Polymeric Hydroxyl Compounds Expired GB1167747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50815265A 1965-11-16 1965-11-16

Publications (1)

Publication Number Publication Date
GB1167747A true GB1167747A (en) 1969-10-22

Family

ID=24021604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51190/66A Expired GB1167747A (en) 1965-11-16 1966-11-15 Precipitation of Polymeric Hydroxyl Compounds

Country Status (1)

Country Link
GB (1) GB1167747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103178A2 (en) * 1982-08-14 1984-03-21 Hoechst Aktiengesellschaft Isolation of microbial polysaccharides from their fatty amine adducts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103178A2 (en) * 1982-08-14 1984-03-21 Hoechst Aktiengesellschaft Isolation of microbial polysaccharides from their fatty amine adducts
EP0103178A3 (en) * 1982-08-14 1985-05-22 Hoechst Aktiengesellschaft Isolation of microbial polysaccharides from their fatty amine adducts

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees