SE8201023L - WAY TO PREVENT OR REDUCE FOAM - Google Patents
WAY TO PREVENT OR REDUCE FOAMInfo
- 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
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
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.
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 (7)
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 |
BR9610073A (en) * | 1995-08-04 | 1999-03-02 | Witco Corp | Reduced ability to generate estrogen from alkoxylated compounds and their derivatives |
DE19934607A1 (en) * | 1999-07-23 | 2001-01-25 | Basf Ag | Tools and processes for cleaning and bleaching cellulose pulp |
EP3469016B1 (en) | 2016-06-13 | 2022-12-14 | 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 |
Family Cites Families (6)
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 |
SE7601749L (en) * | 1975-02-18 | 1976-08-19 | Hart Chemical Ltd | WATER DISPERGABLE ANTI-FOAM COMPOSITION |
-
1981
- 1981-06-18 CA CA000380054A patent/CA1163163A/en not_active Expired
- 1981-06-18 WO PCT/US1981/000819 patent/WO1982000039A1/en active IP Right Grant
- 1981-06-18 BR BR8108664A patent/BR8108664A/en unknown
- 1981-06-18 GB GB8204702A patent/GB2094287B/en not_active Expired
-
1982
- 1982-02-18 SE SE8201023A patent/SE451382B/en not_active IP Right Cessation
- 1982-02-22 NO NO820545A patent/NO820545L/en unknown
- 1982-02-23 FI FI820599A patent/FI74625C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR8108664A (en) | 1982-05-25 |
GB2094287A (en) | 1982-09-15 |
GB2094287B (en) | 1984-08-22 |
FI74625B (en) | 1987-11-30 |
NO820545L (en) | 1982-02-22 |
SE451382B (en) | 1987-10-05 |
FI74625C (en) | 1988-03-10 |
CA1163163A (en) | 1984-03-06 |
WO1982000039A1 (en) | 1982-01-07 |
FI820599L (en) | 1982-02-23 |
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Legal Events
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NUG | Patent has lapsed |
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