GB634197A - Method of reducing the formation of foam in liquids and preparations therefor - Google Patents

Method of reducing the formation of foam in liquids and preparations therefor

Info

Publication number
GB634197A
GB634197A GB8841/47A GB884147A GB634197A GB 634197 A GB634197 A GB 634197A GB 8841/47 A GB8841/47 A GB 8841/47A GB 884147 A GB884147 A GB 884147A GB 634197 A GB634197 A GB 634197A
Authority
GB
United Kingdom
Prior art keywords
alcohol
ethylene glycol
foam
liquids
formation
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
GB8841/47A
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.)
BASF Schweiz AG
Original Assignee
Ciba 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 Ciba AG filed Critical Ciba AG
Publication of GB634197A publication Critical patent/GB634197A/en
Expired 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/12—Defoamers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

Foam-formation in aqueous liquids is reduced by incorporating therewith a mixture of a water-soluble organic solvent, other than an alkyl ether of ethylene glycol, and an alcohol or phenol containing at least one open chain of at least five carbon atoms and sparingly soluble in the aqueous liquid. Examples of these substances are, respectively, isopropyl alcohol, ethylene glycol, glycerol, diethylene glycol, triethylene glycol, thiodiglycol, acetone, and amyl alcohol, hexyl alcohol, octyl alcohol, 2-ethyl butanol, 2-ethyl hexanol, amyl phenols. The mixtures are suitable for reducing foam in viscose solutions, fermented liquids, gelatin solutions, liquors for treating textiles, dyebaths, printing pastes, and in the paper industry. The quantity of the mixture used may be, say, 0.01-0.5 per cent in the case of viscose solutions. The Specification as open to inspection under Sect. 91 refers also to the use of ethers of polyhydric alcohols, e.g. ethylene glycol monoether, as the water-soluble solvent. This subject-matter does not appear in the Specification as accepted.
GB8841/47A 1946-04-26 1947-04-01 Method of reducing the formation of foam in liquids and preparations therefor Expired GB634197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH634197X 1946-04-26

Publications (1)

Publication Number Publication Date
GB634197A true GB634197A (en) 1950-03-15

Family

ID=4524987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8841/47A Expired GB634197A (en) 1946-04-26 1947-04-01 Method of reducing the formation of foam in liquids and preparations therefor

Country Status (2)

Country Link
FR (1) FR945560A (en)
GB (1) GB634197A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116529435A (en) * 2020-10-26 2023-08-01 陶氏环球技术有限责任公司 Paper and pulp foam control agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116529435A (en) * 2020-10-26 2023-08-01 陶氏环球技术有限责任公司 Paper and pulp foam control agent

Also Published As

Publication number Publication date
FR945560A (en) 1949-05-09

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