IT1207174B - Filtration of wax-oil slurries - using singed needle-felted filter cloth - Google Patents

Filtration of wax-oil slurries - using singed needle-felted filter cloth

Info

Publication number
IT1207174B
IT1207174B IT2054479A IT2054479A IT1207174B IT 1207174 B IT1207174 B IT 1207174B IT 2054479 A IT2054479 A IT 2054479A IT 2054479 A IT2054479 A IT 2054479A IT 1207174 B IT1207174 B IT 1207174B
Authority
IT
Italy
Prior art keywords
singed
needle
felted
wax
filtration
Prior art date
Application number
IT2054479A
Other languages
Italian (it)
Other versions
IT7920544A0 (en
Original Assignee
Exxon Research Engineering 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
Priority claimed from US05/947,022 external-priority patent/US4206034A/en
Application filed by Exxon Research Engineering Co filed Critical Exxon Research Engineering Co
Publication of IT7920544A0 publication Critical patent/IT7920544A0/en
Application granted granted Critical
Publication of IT1207174B publication Critical patent/IT1207174B/en

Links

Landscapes

  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Filtering Materials (AREA)

Abstract

Sepn. of solid wax particles from hydrocarbon oils is effected by filtering through a filter medium comprising a needle-felted cloth with a singed and fused surface. The cloth has a r.m.s. surface roughness of >500 (pref. >800) r.m.s. microinches and a fouling factor of >75%. Process is esp. applicable to solvent dewaxing of mineral lubricating oils. Compared with conventional woven cloths, the singed felted cloths give a large redn. in blinding (clogging), increasing throughput by 30% and greatly reducing the frequency of washing.
IT2054479A 1978-09-29 1979-02-26 Filtration of wax-oil slurries - using singed needle-felted filter cloth IT1207174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/947,022 US4206034A (en) 1977-02-17 1978-09-29 Wax separation process

Publications (2)

Publication Number Publication Date
IT7920544A0 IT7920544A0 (en) 1979-02-26
IT1207174B true IT1207174B (en) 1989-05-17

Family

ID=25485386

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2054479A IT1207174B (en) 1978-09-29 1979-02-26 Filtration of wax-oil slurries - using singed needle-felted filter cloth

Country Status (1)

Country Link
IT (1) IT1207174B (en)

Also Published As

Publication number Publication date
IT7920544A0 (en) 1979-02-26

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Effective date: 19960123