IT1207174B - Filtration of wax-oil slurries - using singed needle-felted filter cloth - Google Patents
Filtration of wax-oil slurries - using singed needle-felted filter clothInfo
- 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
Links
- 239000004744 fabric Substances 0.000 title abstract 3
- 238000001914 filtration Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 title 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000010688 mineral lubricating oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 230000003746 surface roughness Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
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.
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) |
-
1979
- 1979-02-26 IT IT2054479A patent/IT1207174B/en active
Also Published As
Publication number | Publication date |
---|---|
IT7920544A0 (en) | 1979-02-26 |
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Legal Events
Date | Code | Title | Description |
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TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19960123 |