GB172012A - Process for treating washing waters and particularly washing waters for wools - Google Patents

Process for treating washing waters and particularly washing waters for wools

Info

Publication number
GB172012A
GB172012A GB3124621A GB3124621A GB172012A GB 172012 A GB172012 A GB 172012A GB 3124621 A GB3124621 A GB 3124621A GB 3124621 A GB3124621 A GB 3124621A GB 172012 A GB172012 A GB 172012A
Authority
GB
United Kingdom
Prior art keywords
washing
salts
fatty acids
membrane
filter
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
GB3124621A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB172012A publication Critical patent/GB172012A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B11/00—Recovery or refining of other fatty substances, e.g. lanolin or waxes
    • C11B11/005—Lanolin; Woolfat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Washing-waters, especially those used for washing wool, are treated by ultra-filtration through a membrane under pressure, in order to separate substances in solution or suspension. The membrane may be of collodion, denitrated collodion, denitrated nitro-cellulose, or cellulose precipitated from a cupro-ammoniacal solution. The mineral salts and alkaline salts of lower fatty acids pass through the membrane, while the free upper fatty acids and their alkaline-earth salts, and other insoluble salts, and the insoluble organic elements of the suint remain behind. The filtrate may be re-employed for washing, and again filtered. Soapy waters, before being used for washing, may be similarly filtered to remove excess of upper fatty acids formed by hydrolysis of the soaps. The filter cake may be extracted from the filter by reversal of pressure, and the filter then regenerated by washing with dilute acids, alcohol, acetone, or methyl alcohol or acetate.ALSO:Alkali metal compounds, recovering from liquors containing organic matter. Washing-waters, especially those used for washing wool, are treated by ultra-filtration through a membrane under pressure in order to separate substances in solution or suspension. The membrane may be of collodion, denitrated collodion, dinitrated nitro-cellulose, or cellulose precipitated from a cupro-ammoniacal solution. The mineral salts and alkali salts of lower fatty acids pass through the membrane, while the free upper fatty acids and their alkaline-earth salts and other insoluble salts, and the insoluble organic elements of the suint, remain behind. The filtrate may be re-employed for washing, and again filtered. Soapy waters, before being used for washing, may be similarly filtered to remove excess of upper fatty acids formed by hydrolysis of the soaps. The filter cake may be extracted from the filter by reversal of pressure, and the filter then regenerated by washing with dilute acids, alcohol, acetone, or methyl alcohol or acetate.
GB3124621A 1920-11-23 1921-11-22 Process for treating washing waters and particularly washing waters for wools Expired GB172012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR172012X 1920-11-23

Publications (1)

Publication Number Publication Date
GB172012A true GB172012A (en) 1923-02-22

Family

ID=8877426

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3124621A Expired GB172012A (en) 1920-11-23 1921-11-22 Process for treating washing waters and particularly washing waters for wools

Country Status (1)

Country Link
GB (1) GB172012A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847804A (en) * 1973-02-20 1974-11-12 Abcor Inc Process of treating wool-scouring liquor and centrifuge effluent
US3956114A (en) * 1973-08-31 1976-05-11 Abcor, Inc. Process for the concentration of polyvinyl-chloride emulsion
US4368112A (en) 1978-12-28 1983-01-11 Exxon Research And Engineering Co. Solvent recovery from foots oil using modified regenerated cellulose membranes
GB2162439A (en) * 1984-07-26 1986-02-05 Oreal Emulsifier based on an alkaline earth metal lanolate or other metal lanolate and water-in-oil emulsions based on this emulsifying system
CN115386431A (en) * 2022-08-22 2022-11-25 田均勉 Method for separating wool oil and wool wax in wool grease by nanofiltration method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847804A (en) * 1973-02-20 1974-11-12 Abcor Inc Process of treating wool-scouring liquor and centrifuge effluent
US3956114A (en) * 1973-08-31 1976-05-11 Abcor, Inc. Process for the concentration of polyvinyl-chloride emulsion
US4368112A (en) 1978-12-28 1983-01-11 Exxon Research And Engineering Co. Solvent recovery from foots oil using modified regenerated cellulose membranes
GB2162439A (en) * 1984-07-26 1986-02-05 Oreal Emulsifier based on an alkaline earth metal lanolate or other metal lanolate and water-in-oil emulsions based on this emulsifying system
CN115386431A (en) * 2022-08-22 2022-11-25 田均勉 Method for separating wool oil and wool wax in wool grease by nanofiltration method

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