GB1051032A - - Google Patents

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Publication number
GB1051032A
GB1051032A GB1051032DA GB1051032A GB 1051032 A GB1051032 A GB 1051032A GB 1051032D A GB1051032D A GB 1051032DA GB 1051032 A GB1051032 A GB 1051032A
Authority
GB
United Kingdom
Prior art keywords
march
filter
liquids
soluble salt
thermoplastic
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.)
Active
Application number
Publication of GB1051032A publication Critical patent/GB1051032A/en
Active legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B01D39/1661—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

1,051,032. Aerating liquids. MANNESMANN A.G. March 12, 1963 [March, 12, 1962; Oct. 25, 1962], No. 9774/63. Heading B1C. [Also in Divisions B5 and C3]. A multilayer "filter" is produced by mixing a synthetic thermoplastic with a soluble salt, extruding this mixture on to the outside of a perforated metal tube and leaching out the salt. The thermoplastic may be polyvinyl chloride, polyethylene or polystyrene and may contain lubricants, e.g. lubricating wax, stabilizers, e.g. lead stearate and copper or mercury salts as algae inhibitors. The soluble salt may be Na Cl in the form of spherical grains of size 0.06-5 mm. 30-70% may be used. The pores on the outer surface of the product, which may be roughened, may be larger than those inside. The "filter" may be used to aerate sewage and other liquids.
GB1051032D Active GB1051032A (en)

Publications (1)

Publication Number Publication Date
GB1051032A true GB1051032A (en)

Family

ID=1756143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1051032D Active GB1051032A (en)

Country Status (1)

Country Link
GB (1) GB1051032A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119958A (en) * 1973-03-20 1974-11-15
JPS5084664A (en) * 1973-11-28 1975-07-08
GB2286794A (en) * 1994-02-26 1995-08-30 Dynamit Nobel Ag Method for the solvent-free production of porous shaped propellant bodies
WO2003091169A1 (en) * 2002-04-23 2003-11-06 Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg Aerator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119958A (en) * 1973-03-20 1974-11-15
JPS556056B2 (en) * 1973-03-20 1980-02-13
JPS5084664A (en) * 1973-11-28 1975-07-08
GB2286794A (en) * 1994-02-26 1995-08-30 Dynamit Nobel Ag Method for the solvent-free production of porous shaped propellant bodies
GB2286794B (en) * 1994-02-26 1997-11-19 Dynamit Nobel Ag Method for the solvent-free production of porous shaped propellant bodies
WO2003091169A1 (en) * 2002-04-23 2003-11-06 Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg Aerator
US7195233B2 (en) 2002-04-23 2007-03-27 Pfleiderer Water Systems Gmbh Aerator

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