GB1112908A - Process for splitting emulsions - Google Patents

Process for splitting emulsions

Info

Publication number
GB1112908A
GB1112908A GB3384165A GB3384165A GB1112908A GB 1112908 A GB1112908 A GB 1112908A GB 3384165 A GB3384165 A GB 3384165A GB 3384165 A GB3384165 A GB 3384165A GB 1112908 A GB1112908 A GB 1112908A
Authority
GB
United Kingdom
Prior art keywords
isocyanate
water
ethylene oxide
reacting
mixture
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
GB3384165A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1112908A publication Critical patent/GB1112908A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00—Dewatering or demulsification of hydrocarbon oils
    • C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

An emulsion, for example of water in petroleum oil, is broken by adding thereto a small quantity of a reaction product of a diisocyanate with (a) a mixture of a water-soluble and a water-insoluble polyalkylene glycol, or (b) an addition product of ethylene oxide and a water-insoluble polyalkylene glycol, or (c) a product formed by the simultaneous addition of monomeric ethylene oxide and higher monomeric alkylene oxides to water or glycols. Examples are given of reacting hexamethylene di-isocyanate with a mixture of polyethylene and polypropylene glycols, reacting toluylene di-isocyanate with a mixture of polyethylene and polypropylene glycols, reacting toluylene di-isocyanate with a polypropylene glycol-ethylene oxide adduct, reacting hexamethylene di-isocyanate with a tetrahydrofurane-ethylene oxide adduct, and reacting toluylene di-isocyanate with a copolymer of ethylene oxide and propylene oxide; these products satisfactorily broke naturally-occurring petroleum emulsions. From 5 to 40 ppm of the substance may be added to the emulsion, which may also be heated, stirred and/or subjected to an electric field.ALSO:An emulsion, for example of water in petroleum oil, is broken by adding thereto a small quantity of a reaction product of a diisocyanate with (a) a mixture of a water-soluble and a water-insoluble polyalkylene glycol, or (b) an addition product of ethylene oxide and a water-insoluble polyalkylene glycol, or (c) a product formed by the simultaneous addition of monomeric ethylene oxide and higher monomeric alkylene oxides to water or glycols. Examples are given of reacting hexamethylene di-isocyanate with a mixture of polyethylene and polypropylene glycols, reacting toluylene di-isocyanate with a mixture of polyethylene and polypropylene glycols, reacting toluylene di-isocyanate with a polypropylene glycol - ethylene oxide adduct. reacting hexamethylene di-isocyanate with a tetrahydrofurane-ethylene oxide adduct, and reacting toluylene di-isocyanate with a copolymer of ethylene oxide and propylene oxide; these products satisfactorily broke naturallyoccurring petroleum emulsions. From 5 to 40 p.p.m. of the substance may be added to the emulsion, which may also be heated, stirred and/or subjected to an electric field.
GB3384165A 1964-08-06 1965-08-06 Process for splitting emulsions Expired GB1112908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0043676 1964-08-06

Publications (1)

Publication Number Publication Date
GB1112908A true GB1112908A (en) 1968-05-08

Family

ID=7099676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3384165A Expired GB1112908A (en) 1964-08-06 1965-08-06 Process for splitting emulsions

Country Status (3)

Country Link
AT (1) AT257021B (en)
DE (1) DE1495827A1 (en)
GB (1) GB1112908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321148A (en) 1980-05-22 1982-03-23 Texaco Inc. Demulsification of bitumen emulsions
US4384951A (en) 1981-12-02 1983-05-24 Texaco Canada Resources, Ltd. Demulsification of bitumen emulsions using polyureas
GB2346378A (en) * 1999-02-04 2000-08-09 Nalco Exxon Energy Chem Lp Demulsification of water-in-oil emulsions using high molecular weight polyurethanes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142954A1 (en) * 1981-10-29 1983-05-11 Hoechst Ag, 6230 Frankfurt "METHOD FOR SEPARATING WATER-IN-OIL OIL EMULSIONS"

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321148A (en) 1980-05-22 1982-03-23 Texaco Inc. Demulsification of bitumen emulsions
US4384951A (en) 1981-12-02 1983-05-24 Texaco Canada Resources, Ltd. Demulsification of bitumen emulsions using polyureas
GB2346378A (en) * 1999-02-04 2000-08-09 Nalco Exxon Energy Chem Lp Demulsification of water-in-oil emulsions using high molecular weight polyurethanes
GB2346378B (en) * 1999-02-04 2003-02-12 Nalco Exxon Energy Chem Lp Demulsification of water-in-oil emulsions
US6638983B1 (en) 1999-02-04 2003-10-28 Ondeo Nalco Company Demulsification of water-in-oil emulsions

Also Published As

Publication number Publication date
AT257021B (en) 1967-09-25
DE1495827A1 (en) 1969-06-12

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