GB530556A - Improvements in and relating to processes for separating fibrous materials from suspensions containing the same - Google Patents

Improvements in and relating to processes for separating fibrous materials from suspensions containing the same

Info

Publication number
GB530556A
GB530556A GB18714/39A GB1871439A GB530556A GB 530556 A GB530556 A GB 530556A GB 18714/39 A GB18714/39 A GB 18714/39A GB 1871439 A GB1871439 A GB 1871439A GB 530556 A GB530556 A GB 530556A
Authority
GB
United Kingdom
Prior art keywords
fibrous materials
suspensions
relating
processes
june
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
GB18714/39A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB530556A publication Critical patent/GB530556A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/002—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/008—Organic compounds containing oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/002—Coagulants and Flocculants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/04—Frothers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

530,556. Separating fibres from suspensions. DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT VORM. ROESSLER. June 27, 1939, No. 18714. Convention date, June 28, 1938. [Class 96] [Also in Group IV] Fibrous materials are separated from suspensions, e.g. the waste liquors from paper or cardboard manufacture, by the flotation process using a flocculating agent, e.g. alum, in the presence of a substance evolving oxygen, e.g. hydrogen peroxide, ozone, sodium peroxide, sodium perborate, and persulphuric acid and its salts. Wetting agents, e.g. Turkey red oil, and frothing agents may also be present. The medium preferably has a pH greater than 7, and is under reduced pressure.
GB18714/39A 1938-06-28 1939-06-27 Improvements in and relating to processes for separating fibrous materials from suspensions containing the same Expired GB530556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE530556X 1938-06-28

Publications (1)

Publication Number Publication Date
GB530556A true GB530556A (en) 1940-12-13

Family

ID=6554570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18714/39A Expired GB530556A (en) 1938-06-28 1939-06-27 Improvements in and relating to processes for separating fibrous materials from suspensions containing the same

Country Status (1)

Country Link
GB (1) GB530556A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248277A (en) * 1961-07-05 1966-04-26 Fmc Corp Process for the purification of aqueous dispersions of fibrous materials
US3256140A (en) * 1961-05-03 1966-06-14 Basf Ag Flotation of paper fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256140A (en) * 1961-05-03 1966-06-14 Basf Ag Flotation of paper fibers
US3248277A (en) * 1961-07-05 1966-04-26 Fmc Corp Process for the purification of aqueous dispersions of fibrous materials

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