GB615705A - Method and apparatus for clarifying lubricating and cooling liquids - Google Patents

Method and apparatus for clarifying lubricating and cooling liquids

Info

Publication number
GB615705A
GB615705A GB858943A GB858943A GB615705A GB 615705 A GB615705 A GB 615705A GB 858943 A GB858943 A GB 858943A GB 858943 A GB858943 A GB 858943A GB 615705 A GB615705 A GB 615705A
Authority
GB
United Kingdom
Prior art keywords
froth
water
oil
settling
contaminants
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
GB858943A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to GB858943A priority Critical patent/GB615705A/en
Publication of GB615705A publication Critical patent/GB615705A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
    • C10M175/04—Working-up used lubricants to recover useful products ; Cleaning aqueous emulsion based

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

A method of continuously removing solids from contaminated lubricating coolants comprises subjecting the coolants to aeration and agitation in presence of water without the addition of any other froth-promoting reagent, whereby the contaminants are concentrated in the froth, and collecting the froth concentrate. Part of the contaminants may be removed by a preliminary treatment by magnetic separation, tabling or settling. Examples are given of the use of a "Fagergren" flotation machine in clarifying a "soluble-oil" emulsion of oil and water in metal-working operations, for example, grinding. The Specification as open to inspection under Sect. 91 comprises also the use of frothing reagents for example, pine oil, cresylic acids, fatty acids, soaps and amines, and also the use of wetting agents when settling precedes clarification by flotation, water being a commonly used coolant. This subject-matter does not appear in the Specification as accepted.ALSO:A method of continuously removing solids from contaminated lubricating coolants comprises subjecting the coolants to aeration and agitation in presence of water without the addition of any other froth-promoting reagent, whereby the contaminants are concentrated in the froth, and collecting the froth concentrates. Part of the contaminants may be removed by a preliminary treatment by magnetic separation tabling or settling. Examples are given of the use of a "Tagergen" flotation machine in clarifying a "soluble oil" emulsion of oil and water in metal working operations for example, grinding. The Specification as open to inspection under Sect. 91 comprises also the use of frothing reagents for example pine oil, cresylic acids, fatty acids, soaps and amines, and also the use of wetting agents where settling precedes clarification by flotation, water being a commonly used coolant. This subject-matter does not appear in the Specification as accepted.
GB858943A 1943-05-28 1943-05-28 Method and apparatus for clarifying lubricating and cooling liquids Expired GB615705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB858943A GB615705A (en) 1943-05-28 1943-05-28 Method and apparatus for clarifying lubricating and cooling liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858943A GB615705A (en) 1943-05-28 1943-05-28 Method and apparatus for clarifying lubricating and cooling liquids

Publications (1)

Publication Number Publication Date
GB615705A true GB615705A (en) 1949-01-11

Family

ID=9855390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB858943A Expired GB615705A (en) 1943-05-28 1943-05-28 Method and apparatus for clarifying lubricating and cooling liquids

Country Status (1)

Country Link
GB (1) GB615705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513809A2 (en) * 1991-05-15 1992-11-19 Sms Schloemann-Siemag Aktiengesellschaft Method for treating cooling fluids and/or lubricants used in rolling mill installations and device therefor
WO2022078673A1 (en) * 2020-10-16 2022-04-21 Sms Group Gmbh Method for eliminating legionellae from water of a cooling circuit, which is loaded with organic substances and inorganic particles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513809A2 (en) * 1991-05-15 1992-11-19 Sms Schloemann-Siemag Aktiengesellschaft Method for treating cooling fluids and/or lubricants used in rolling mill installations and device therefor
EP0513809A3 (en) * 1991-05-15 1993-03-17 Sms Schloemann-Siemag Aktiengesellschaft Method for treating cooling fluids and/or lubricants used in rolling mill installations and device therefor
WO2022078673A1 (en) * 2020-10-16 2022-04-21 Sms Group Gmbh Method for eliminating legionellae from water of a cooling circuit, which is loaded with organic substances and inorganic particles

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