GB1191932A - Fine-Pored Filter Material - Google Patents

Fine-Pored Filter Material

Info

Publication number
GB1191932A
GB1191932A GB1220667A GB1220667A GB1191932A GB 1191932 A GB1191932 A GB 1191932A GB 1220667 A GB1220667 A GB 1220667A GB 1220667 A GB1220667 A GB 1220667A GB 1191932 A GB1191932 A GB 1191932A
Authority
GB
United Kingdom
Prior art keywords
fabric
silicic acid
hcl
silica sol
fine
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
GB1220667A
Inventor
Helmut Furtig
Friedrich Wolf
Emil Lemnitz
Gunter Diekers
Alfred Mey
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.)
VER PHOSPHATDUNGERWERKE BAD KO
Original Assignee
VER PHOSPHATDUNGERWERKE BAD KO
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 VER PHOSPHATDUNGERWERKE BAD KO filed Critical VER PHOSPHATDUNGERWERKE BAD KO
Priority to GB1220667A priority Critical patent/GB1191932A/en
Publication of GB1191932A publication Critical patent/GB1191932A/en
Expired legal-status Critical Current

Links

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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • 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
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • 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
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0464—Impregnants

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

1,191,932. Filtering medium. VEREINIGTE PHOSPHATDUNGERWERKE, VEB. 15 March, 1967, No. 12206/67. Heading B1D. [Also in Division Dl] The pore diameter of woven or felted cotton, nylon or PVC, nettlecloth or kalmuck is reduced to below 10<SP>-6</SP> cms. by precipitating silicic acid on to the fabric fibres. The fabric may be impregnated with silica sol, which is converted to silicic acid by treating with HCl, after drying. Or silicon tetrachloride is applied to the fabric, hydrolysed with water to form silica sol and silicic acid formed therefrom by applying. HCl. These processes may be repeated several times to achieve the desired pore size reduction. The fabric is then used to filter precipitated salts from chemically treated sea water, in sea rescues.
GB1220667A 1967-03-15 1967-03-15 Fine-Pored Filter Material Expired GB1191932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1220667A GB1191932A (en) 1967-03-15 1967-03-15 Fine-Pored Filter Material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1220667A GB1191932A (en) 1967-03-15 1967-03-15 Fine-Pored Filter Material

Publications (1)

Publication Number Publication Date
GB1191932A true GB1191932A (en) 1970-05-13

Family

ID=10000279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1220667A Expired GB1191932A (en) 1967-03-15 1967-03-15 Fine-Pored Filter Material

Country Status (1)

Country Link
GB (1) GB1191932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462185A1 (en) * 1979-07-30 1981-02-13 Amf Inc FILTER CARTRIDGE AND METHOD OF MAKING SAME
EP0325188A2 (en) * 1988-01-18 1989-07-26 STABIFIX BRAUEREI-TECHNIK GMBH &amp; CO. OHG Method for the reduction of the pore-size of a filter medium for beverages

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462185A1 (en) * 1979-07-30 1981-02-13 Amf Inc FILTER CARTRIDGE AND METHOD OF MAKING SAME
EP0325188A2 (en) * 1988-01-18 1989-07-26 STABIFIX BRAUEREI-TECHNIK GMBH &amp; CO. OHG Method for the reduction of the pore-size of a filter medium for beverages
DE3820393A1 (en) * 1988-01-18 1989-07-27 Stabifix Brauerei Technik Gmbh METHOD FOR REDUCING THE PORES OF A FILTER MEDIUM FOR BEVERAGES
EP0325188A3 (en) * 1988-01-18 1990-05-16 Stabifix Brauerei-Technik Gmbh & Co. Ohg Method for the reduction of the pores of a filter medium for beverages

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed