SE8201023L - WAY TO PREVENT OR REDUCE FOAM - Google Patents

WAY TO PREVENT OR REDUCE FOAM

Info

Publication number
SE8201023L
SE8201023L SE8201023A SE8201023A SE8201023L SE 8201023 L SE8201023 L SE 8201023L SE 8201023 A SE8201023 A SE 8201023A SE 8201023 A SE8201023 A SE 8201023A SE 8201023 L SE8201023 L SE 8201023L
Authority
SE
Sweden
Prior art keywords
value
hydrophobe
moles
defoamer
units
Prior art date
Application number
SE8201023A
Other languages
Swedish (sv)
Other versions
SE451382B (en
Inventor
Susan C Lappi
James E Maloney
Original Assignee
Susan C Lappi
James E Maloney
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 Susan C Lappi, James E Maloney filed Critical Susan C Lappi
Publication of SE8201023L publication Critical patent/SE8201023L/en
Publication of SE451382B publication Critical patent/SE451382B/en

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)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polyethers (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.
SE8201023A 1980-06-23 1982-02-18 VIEW TO Cushion Foam Formation in an aqueous liquid with the help of a foam dampening composition SE451382B (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
SE8201023L true SE8201023L (en) 1982-02-18
SE451382B SE451382B (en) 1987-10-05

Family

ID=22585114

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8201023A SE451382B (en) 1980-06-23 1982-02-18 VIEW TO Cushion Foam Formation in an aqueous liquid with the help of a foam dampening composition

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 (8)

* 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
CN1197449A (en) * 1995-08-04 1998-10-28 韦特科公司 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
CA3027242C (en) * 2016-06-13 2021-09-14 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
TWI820485B (en) 2020-10-26 2023-11-01 美商陶氏全球科技有限責任公司 Paper and pulp foam control agent

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
FI760391A7 (en) * 1975-02-18 1976-08-19 Hart Chemical Ltd

Also Published As

Publication number Publication date
GB2094287B (en) 1984-08-22
CA1163163A (en) 1984-03-06
BR8108664A (en) 1982-05-25
FI74625C (en) 1988-03-10
GB2094287A (en) 1982-09-15
FI820599L (en) 1982-02-23
WO1982000039A1 (en) 1982-01-07
NO820545L (en) 1982-02-22
FI74625B (en) 1987-11-30
SE451382B (en) 1987-10-05

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