GB2094287A - Methods of foam inhibition or depression - Google Patents

Methods of foam inhibition or depression

Info

Publication number
GB2094287A
GB2094287A GB8204702A GB8204702A GB2094287A GB 2094287 A GB2094287 A GB 2094287A GB 8204702 A GB8204702 A GB 8204702A GB 8204702 A GB8204702 A GB 8204702A GB 2094287 A GB2094287 A GB 2094287A
Authority
GB
United Kingdom
Prior art keywords
value
depression
methods
hydrophobe
moles
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.)
Granted
Application number
GB8204702A
Other versions
GB2094287B (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.)
Ecolab Inc
Original Assignee
Economics Laboratory 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 Economics Laboratory Inc filed Critical Economics Laboratory Inc
Publication of GB2094287A publication Critical patent/GB2094287A/en
Application granted granted Critical
Publication of GB2094287B publication Critical patent/GB2094287B/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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters
    • 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
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polyethers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Methods of foam inhibition or depression in industrial milieu. The present methods generally involve the use of certain nonionic surfactants having the structure: R<u1>u-(OC<u2>uH<u4>u)<ux>u-(OC<u3>uH<u6>u)<uy>u-OH wherein R<u1>u is a monovalent organic hydrophobic moiety or hydrophobe, preferably selected from the group consisting of long chain or higher molecular weight primary or secondary alcohols, alkyphenols, or mixtures thereof; x is the value of the average number of moles or units of ethylene oxide per defoamer molecule and has a value in the range of 3 to 20, preferably 5 to 15; y is the average number of moles or units of propylene oxide per molecule of defoamer and has a value in the range of from 15 to 60, preferably 20 to 50. The figure illustrates the criticality of the hydrophobe/ethylene oxide/ propylene oxide weight ratio.
GB8204702A 1980-06-23 1981-06-18 Methods of foam inhibition or depression Expired GB2094287B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16231580A 1980-06-23 1980-06-23

Publications (2)

Publication Number Publication Date
GB2094287A true GB2094287A (en) 1982-09-15
GB2094287B GB2094287B (en) 1984-08-22

Family

ID=22585114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8204702A Expired GB2094287B (en) 1980-06-23 1981-06-18 Methods of foam inhibition or depression

Country Status (7)

Country Link
BR (1) BR8108664A (en)
CA (1) CA1163163A (en)
FI (1) FI74625C (en)
GB (1) GB2094287B (en)
NO (1) NO820545L (en)
SE (1) SE451382B (en)
WO (1) WO1982000039A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223731A1 (en) * 1982-06-25 1983-12-29 Chemische Werke Hüls AG, 4370 Marl USE OF ANY ALKYL-SUBSTITUTED PHENOLPOLYALKYLENE GLYCOLETHERS AS DEFOAMERS IN PAPER SIZING AGENTS
GB8703716D0 (en) * 1987-02-18 1987-03-25 Dalgety Uk Ltd Repelling animals
EP0404317A3 (en) * 1989-06-22 1991-10-02 Petrolite Corporation Use of ethoxylated propoxylated alcohols to prevent or reduce foam in fermentation broths
ZA966604B (en) * 1995-08-04 1997-02-18 Witco Corp Reducing estrogenicity of alkoxylated compounds and products thereof.
DE19934607A1 (en) * 1999-07-23 2001-01-25 Basf Ag Tools and processes for cleaning and bleaching cellulose pulp
US11021577B2 (en) 2016-06-13 2021-06-01 3R Valo, S.E.C. Phosphorylated lignocellulosic fibers, uses and processes of preparation thereof
CN109234086B (en) * 2018-09-07 2021-03-16 广州立白企业集团有限公司 Concentrated detergent composition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686766A (en) * 1952-10-06 1954-08-17 El Dorado Oil Works Nonfoaming synthetic rubber emulsion paint composition
US2792374A (en) * 1953-01-14 1957-05-14 Socony Mobil Oil Co Inc Aqueous defoamants
US3056687A (en) * 1959-06-30 1962-10-02 Stephan John Thomas Anti-foaming agents for aqueous alkaline proteinaceous adhesive solutions and the like
US3215635A (en) * 1962-08-02 1965-11-02 Nopco Chem Co Defoaming compositions
US3277217A (en) * 1963-04-24 1966-10-04 Gen Aniline & Film Corp Process for producing phosphate esters by oxidation of phosphites using hydrogen peroxide and organic peroxides as catalyst
FI760391A (en) * 1975-02-18 1976-08-19 Hart Chemical Ltd

Also Published As

Publication number Publication date
FI74625B (en) 1987-11-30
FI820599L (en) 1982-02-23
WO1982000039A1 (en) 1982-01-07
BR8108664A (en) 1982-05-25
CA1163163A (en) 1984-03-06
SE8201023L (en) 1982-02-18
SE451382B (en) 1987-10-05
FI74625C (en) 1988-03-10
GB2094287B (en) 1984-08-22
NO820545L (en) 1982-02-22

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Xia Errata:“The random eigenvalue problem for a differential equation containing small white noise”[Quart. Appl. Math. 46 (1988), no. 4, 611–630; MR0973379 (90b: 60071)]

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee