GB1429237A - Recovery of formic acid in the manufacture of polyols - Google Patents

Recovery of formic acid in the manufacture of polyols

Info

Publication number
GB1429237A
GB1429237A GB3135273A GB3135273A GB1429237A GB 1429237 A GB1429237 A GB 1429237A GB 3135273 A GB3135273 A GB 3135273A GB 3135273 A GB3135273 A GB 3135273A GB 1429237 A GB1429237 A GB 1429237A
Authority
GB
United Kingdom
Prior art keywords
formic acid
polyol
solvent
aqueous solution
manufacture
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
GB3135273A
Other languages
English (en)
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.)
Produits Chimiques Ugine Kuhlmann
Pechiney SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Publication of GB1429237A publication Critical patent/GB1429237A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0488—Flow sheets
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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
    • C08F2420/00—Metallocene catalysts
    • C08F2420/09—Cyclic bridge, i.e. Cp or analog where the bridging unit linking the two Cps or analogs is part of a cyclic group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)
GB3135273A 1972-07-07 1973-07-02 Recovery of formic acid in the manufacture of polyols Expired GB1429237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7224619A FR2192088B1 (enrdf_load_stackoverflow) 1972-07-07 1972-07-07

Publications (1)

Publication Number Publication Date
GB1429237A true GB1429237A (en) 1976-03-24

Family

ID=9101515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3135273A Expired GB1429237A (en) 1972-07-07 1973-07-02 Recovery of formic acid in the manufacture of polyols

Country Status (12)

Country Link
AT (1) AT323712B (enrdf_load_stackoverflow)
BE (1) BE802038A (enrdf_load_stackoverflow)
CA (1) CA1039751A (enrdf_load_stackoverflow)
DE (1) DE2332137A1 (enrdf_load_stackoverflow)
ES (1) ES416442A1 (enrdf_load_stackoverflow)
FR (1) FR2192088B1 (enrdf_load_stackoverflow)
GB (1) GB1429237A (enrdf_load_stackoverflow)
IE (1) IE37865B1 (enrdf_load_stackoverflow)
IT (1) IT991656B (enrdf_load_stackoverflow)
LU (1) LU67855A1 (enrdf_load_stackoverflow)
NL (1) NL7308690A (enrdf_load_stackoverflow)
SE (1) SE407404B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942035A (zh) * 2010-09-07 2011-01-12 天津强微特生物科技有限公司 一种根瘤菌胞外多糖的提取及精制方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942035A (zh) * 2010-09-07 2011-01-12 天津强微特生物科技有限公司 一种根瘤菌胞外多糖的提取及精制方法

Also Published As

Publication number Publication date
DE2332137A1 (de) 1974-01-24
FR2192088A1 (enrdf_load_stackoverflow) 1974-02-08
LU67855A1 (enrdf_load_stackoverflow) 1973-08-30
AT323712B (de) 1975-07-25
IE37865B1 (en) 1977-10-26
SE407404B (sv) 1979-03-26
IE37865L (en) 1974-01-07
BE802038A (fr) 1974-01-07
CA1039751A (fr) 1978-10-03
NL7308690A (enrdf_load_stackoverflow) 1974-01-09
IT991656B (it) 1975-08-30
FR2192088B1 (enrdf_load_stackoverflow) 1980-07-25
ES416442A1 (es) 1976-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee