GB1402597A - Aqueous antifoaming emulsions - Google Patents

Aqueous antifoaming emulsions

Info

Publication number
GB1402597A
GB1402597A GB5296672A GB5296672A GB1402597A GB 1402597 A GB1402597 A GB 1402597A GB 5296672 A GB5296672 A GB 5296672A GB 5296672 A GB5296672 A GB 5296672A GB 1402597 A GB1402597 A GB 1402597A
Authority
GB
United Kingdom
Prior art keywords
parts
water
emulsion
alfol
nov
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
GB5296672A
Inventor
F Poschmann
W Bergold
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 SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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
Priority claimed from DE19712157033 external-priority patent/DE2157033C3/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1402597A publication Critical patent/GB1402597A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Colloid Chemistry (AREA)
  • Paper (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1402597 Aqueous antifoaming emulsions; clay dispersion BADISCHE ANILIN- & SODAFABRIK AG 16 Nov 1972 [17 Nov 1971] 52966/72 Headings C1A and C1C [Also in Divisions B1 C6 and D2] A coating composition of water content 50% comprises 100 parts coating clay, 0À3 part of a polyacrylate, 0À15 part sodium hydroxide, 4 parts casein, 11 parts of an aqueous dispersion based on acrylic acid and methacrylate and is highly foaming. The amount of foam produced is reduced by addition to 4 litres of the composition of 1 gm of an emulsion comprising 25 parts C 16-18 "Alfol" cut (Alfol is a Registered Trade Mark), 15 parts stearic acid, 5 parts sperm oil fatty alcohol ethoxylated with 25 moles ethylene oxide and 55 parts water, the average particle size of the emulsified waterinsoluble portions of the emulsion being from 4 to 7 microns. Foaming in the aerating basins of a biological sewage plant in which the water to be treated contains up to 1% sewage sludge is reduced by adding to the sewage entering the basin 5 c.c./m.<SP>3</SP> of an emulsion comprising 26% C 16 to C 18 fatty alcohol, 4% paraffin oil, 5% ethoxylated oleic acid containing 8 moles of ethylene oxide and 65% water, the average particle size of the emulsified water-insoluble portions of the emulsion being 6 microns.
GB5296672A 1971-11-17 1972-11-16 Aqueous antifoaming emulsions Expired GB1402597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712157033 DE2157033C3 (en) 1971-11-17 Process for defoaming aqueous systems

Publications (1)

Publication Number Publication Date
GB1402597A true GB1402597A (en) 1975-08-13

Family

ID=5825375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5296672A Expired GB1402597A (en) 1971-11-17 1972-11-16 Aqueous antifoaming emulsions

Country Status (14)

Country Link
JP (1) JPS4862683A (en)
AT (1) AT323110B (en)
BE (1) BE791209A (en)
CA (1) CA998314A (en)
CH (1) CH566799A5 (en)
DD (1) DD100160A5 (en)
DK (1) DK136845C (en)
FI (1) FI53662C (en)
FR (1) FR2160445B1 (en)
GB (1) GB1402597A (en)
IT (1) IT973592B (en)
NL (1) NL7215351A (en)
NO (1) NO138191C (en)
SE (1) SE374030B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303549A (en) 1979-10-18 1981-12-01 Drew Chemical Corporation Liquid defoamer and defoaming process
US4340500A (en) 1980-03-31 1982-07-20 Drew Chemical Corporation Liquid defoamer and process of use thereof
US4341656A (en) 1978-11-03 1982-07-27 Ciba-Geigy Corporation Foam inhibitors and their use for defoaming aqueous systems
EP0930394A1 (en) * 1996-07-18 1999-07-21 Kao Corporation Bulking agents for paper, high-bulkiness pulp sheets, and process for the production of the sheets
WO2012095393A1 (en) * 2011-01-10 2012-07-19 Basf Se Oil-in-water emulsions
FR2987044A1 (en) * 2012-02-21 2013-08-23 Chryso AGENT ANTI-FILM SURFACE
US9873637B2 (en) 2009-08-07 2018-01-23 Chryso Anti-filming surface-active agent
CN112807754A (en) * 2020-12-09 2021-05-18 金湖金凌新材料科技有限公司 Defoaming agent for eliminating foam in wastewater aerobic activated sludge tank and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50158589A (en) * 1974-06-11 1975-12-22
IE42854B1 (en) * 1975-06-13 1980-11-05 Ciba Geigy Ag Process for removing foam from aqueous systems
SE443092B (en) * 1983-07-07 1986-02-17 Grace W R Ab MEASURES FOR DEFINING AND DEHIBITING Aqueous systems based on aqueous dispersions and using the agent
DE3401695A1 (en) * 1984-01-19 1985-08-01 Basf Ag, 6700 Ludwigshafen DEFOAMER BASED ON OIL-IN-WATER EMULSIONS
CN111945015A (en) * 2020-07-08 2020-11-17 江苏海云花新材料有限公司 Non-weight loss clay refining agent

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341656A (en) 1978-11-03 1982-07-27 Ciba-Geigy Corporation Foam inhibitors and their use for defoaming aqueous systems
US4303549A (en) 1979-10-18 1981-12-01 Drew Chemical Corporation Liquid defoamer and defoaming process
US4340500A (en) 1980-03-31 1982-07-20 Drew Chemical Corporation Liquid defoamer and process of use thereof
EP0930394A1 (en) * 1996-07-18 1999-07-21 Kao Corporation Bulking agents for paper, high-bulkiness pulp sheets, and process for the production of the sheets
EP0930394A4 (en) * 1996-07-18 2000-05-31 Kao Corp Bulking agents for paper, high-bulkiness pulp sheets, and process for the production of the sheets
US6273995B1 (en) 1996-07-18 2001-08-14 Kao Corporation Paper bulking promoter, highly bulky pulp sheet, and process for producing the pulp sheet
US9873637B2 (en) 2009-08-07 2018-01-23 Chryso Anti-filming surface-active agent
WO2012095393A1 (en) * 2011-01-10 2012-07-19 Basf Se Oil-in-water emulsions
FR2987044A1 (en) * 2012-02-21 2013-08-23 Chryso AGENT ANTI-FILM SURFACE
US9796625B2 (en) 2012-02-21 2017-10-24 Chryso Anti-filming surface-active agent
CN112807754A (en) * 2020-12-09 2021-05-18 金湖金凌新材料科技有限公司 Defoaming agent for eliminating foam in wastewater aerobic activated sludge tank and preparation method thereof

Also Published As

Publication number Publication date
DE2157033A1 (en) 1973-05-24
AT323110B (en) 1975-06-25
FI53662C (en) 1980-10-20
NO138191C (en) 1978-07-26
FR2160445A1 (en) 1973-06-29
DE2157033B2 (en) 1977-03-03
DD100160A5 (en) 1973-09-12
FR2160445B1 (en) 1978-07-07
CH566799A5 (en) 1975-09-30
NL7215351A (en) 1973-05-21
CA998314A (en) 1976-10-12
BE791209A (en) 1973-05-10
SE374030B (en) 1975-02-24
IT973592B (en) 1974-06-10
DK136845C (en) 1978-05-16
DK136845B (en) 1977-12-05
NO138191B (en) 1978-04-17
JPS4862683A (en) 1973-09-01
FI53662B (en) 1978-03-31

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years