GB767927A - Method of reducing foaming in sea-water evaporators and the like plants - Google Patents

Method of reducing foaming in sea-water evaporators and the like plants

Info

Publication number
GB767927A
GB767927A GB3145153A GB3145153A GB767927A GB 767927 A GB767927 A GB 767927A GB 3145153 A GB3145153 A GB 3145153A GB 3145153 A GB3145153 A GB 3145153A GB 767927 A GB767927 A GB 767927A
Authority
GB
United Kingdom
Prior art keywords
ester
sea
water
foaming
reducing foaming
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
GB3145153A
Inventor
George Alexander Campbell
John Kempton Aiken
George Arthur Lombard
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.)
Geigy Co Ltd
Original Assignee
Geigy Co Ltd
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 Geigy Co Ltd filed Critical Geigy Co Ltd
Priority to GB3145153A priority Critical patent/GB767927A/en
Publication of GB767927A publication Critical patent/GB767927A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
    • B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
    • B01B1/02—Preventing foaming
    • B01B1/04—Preventing foaming by chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Foaming in sea-water evaporators is reduced by adding to the water the mono- or di-ester of a polyalkylene glycol and an aliphatic monocarboxylic acid containing less than twelve carbon atoms in the molecule and preferably free from alcoholic hydroxyl groups. The ester is of molecular weight preferably between 200 and 1000 if it is a polyethylene glycol and 1000 to 3000 if it is a polypropylene glycol. A mixture of the ester with the condensation product of naphthalene sulphonic acid and formaldehyde neutralized with caustic soda is also used in reducing foaming.ALSO:Foaming, in sea-water evaporators, is reduced by adding to the water the mono-or di-ester of a polyalkylene glycol and an aliphatic monocarboxylic acid containing less than twelve carbon atoms in the molecules and preferably free from alcoholic hydroxyl groups. The ester is of molecular weight preferably between 200 and 1000 if it is a polyethylene glycol and 1000 to 3000 if it is a polypropylene glycol. A mixture of the ester with the condensation product of naphthalene sulphonic acid and formaldehyde neutralized with caustic soda is also used in reducing foaming.
GB3145153A 1953-11-13 1953-11-13 Method of reducing foaming in sea-water evaporators and the like plants Expired GB767927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3145153A GB767927A (en) 1953-11-13 1953-11-13 Method of reducing foaming in sea-water evaporators and the like plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3145153A GB767927A (en) 1953-11-13 1953-11-13 Method of reducing foaming in sea-water evaporators and the like plants

Publications (1)

Publication Number Publication Date
GB767927A true GB767927A (en) 1957-02-13

Family

ID=10323271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3145153A Expired GB767927A (en) 1953-11-13 1953-11-13 Method of reducing foaming in sea-water evaporators and the like plants

Country Status (1)

Country Link
GB (1) GB767927A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078236A (en) * 1959-04-09 1963-02-19 Dearborn Chemicals Co Process antifoams
WO1987003275A1 (en) * 1985-11-21 1987-06-04 Nautical Services Pty. Ltd. Electronic control and dosing system for desalinators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078236A (en) * 1959-04-09 1963-02-19 Dearborn Chemicals Co Process antifoams
WO1987003275A1 (en) * 1985-11-21 1987-06-04 Nautical Services Pty. Ltd. Electronic control and dosing system for desalinators
US4877489A (en) * 1985-11-21 1989-10-31 Nautical Services Pty. Ltd. Electronic control and dosing system for desalinators

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