ES418146A1 - Dewaxing of oils - Google Patents
Dewaxing of oilsInfo
- Publication number
- ES418146A1 ES418146A1 ES418146A ES418146A ES418146A1 ES 418146 A1 ES418146 A1 ES 418146A1 ES 418146 A ES418146 A ES 418146A ES 418146 A ES418146 A ES 418146A ES 418146 A1 ES418146 A1 ES 418146A1
- Authority
- ES
- Spain
- Prior art keywords
- oil
- high pressure
- wax
- solvent
- refrigerant
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/02—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils
- C10G73/06—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils with the use of solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Fats And Perfumes (AREA)
- Lubricants (AREA)
Abstract
A method of separating wax from oil containing wax, characterized by: (a) mixing said wax-containing oil with a dewaxing solvent and a liquid coolant at an initial pressure at least sufficient to maintain said coolant in the liquid phase; (b) reducing the pressure on the resulting oil-solvent-coolant mixture in a cooling operation, effecting the evaporation of said coolant and the simultaneous cooling of said mixture to a temperature at which the phase crystallizes, thus forming a first suspension consisting of wax in the rest of the solvent oil mixture and a high pressure volatilized refrigerant vapor; (c) filtering said first suspension, whereby (i) a first paraffin gacha filter cake containing wax crystals and an occluded oil-solvent mixture is formed and (ii) a first filtrate containing dewaxed oil and solvent ; (d) cooling said high pressure volatilized refrigerant vapor in an indirect heat exchanger against said first filtrate, thereby forming a high pressure threaded refrigerant; (e) condensing said high pressure cooled refrigerant, thereby forming a high pressure liquid refrigerant; (f) recycling said high pressure liquid refrigerant to said mixing stage and (g) separating the dewaxed oil and the deoiled wax from the first cake of the aforementioned filter. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00285784A US3846277A (en) | 1972-09-01 | 1972-09-01 | Dewaxing of oils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES418146A1 true ES418146A1 (en) | 1976-03-16 |
Family
ID=23095676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES418146A Expired ES418146A1 (en) | 1972-09-01 | 1973-08-23 | Dewaxing of oils |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US3846277A (en) |
| JP (1) | JPS4964607A (en) |
| AU (1) | AU471951B2 (en) |
| BE (1) | BE804126A (en) |
| BR (1) | BR7306621D0 (en) |
| CA (1) | CA1015299A (en) |
| DE (1) | DE2343515A1 (en) |
| ES (1) | ES418146A1 (en) |
| FR (1) | FR2197964B1 (en) |
| GB (1) | GB1392159A (en) |
| IT (1) | IT995240B (en) |
| NL (1) | NL7311737A (en) |
| SE (1) | SE396615B (en) |
| TR (1) | TR17474A (en) |
| ZA (1) | ZA735349B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541917A (en) * | 1983-12-19 | 1985-09-17 | Exxon Research And Engineering Co. | Modified deoiling-dewaxing process |
| US5503663A (en) * | 1994-11-30 | 1996-04-02 | The Dow Chemical Company | Sable coating solutions for coating valve metal anodes |
| CN109554222A (en) * | 2018-11-14 | 2019-04-02 | 陈同翔 | A kind of edible oil cooling dewaxing systems |
-
1972
- 1972-09-01 US US00285784A patent/US3846277A/en not_active Expired - Lifetime
-
1973
- 1973-06-29 CA CA175,288A patent/CA1015299A/en not_active Expired
- 1973-08-03 GB GB3707773A patent/GB1392159A/en not_active Expired
- 1973-08-06 ZA ZA735349A patent/ZA735349B/en unknown
- 1973-08-08 AU AU59030/73A patent/AU471951B2/en not_active Expired
- 1973-08-23 ES ES418146A patent/ES418146A1/en not_active Expired
- 1973-08-25 NL NL7311737A patent/NL7311737A/xx not_active Application Discontinuation
- 1973-08-28 FR FR7331056A patent/FR2197964B1/fr not_active Expired
- 1973-08-28 BR BR6621/73A patent/BR7306621D0/en unknown
- 1973-08-28 BE BE135032A patent/BE804126A/en unknown
- 1973-08-29 DE DE19732343515 patent/DE2343515A1/en active Pending
- 1973-08-29 TR TR17474A patent/TR17474A/en unknown
- 1973-08-30 JP JP48096767A patent/JPS4964607A/ja active Pending
- 1973-08-30 IT IT28386/73A patent/IT995240B/en active
- 1973-08-30 SE SE7311822A patent/SE396615B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4964607A (en) | 1974-06-22 |
| NL7311737A (en) | 1974-03-05 |
| AU5903073A (en) | 1975-02-13 |
| IT995240B (en) | 1975-11-10 |
| FR2197964B1 (en) | 1980-01-11 |
| DE2343515A1 (en) | 1974-03-07 |
| AU471951B2 (en) | 1976-05-06 |
| BR7306621D0 (en) | 1974-07-18 |
| BE804126A (en) | 1974-02-28 |
| CA1015299A (en) | 1977-08-09 |
| GB1392159A (en) | 1975-04-30 |
| SE396615B (en) | 1977-09-26 |
| ZA735349B (en) | 1974-12-24 |
| US3846277A (en) | 1974-11-05 |
| FR2197964A1 (en) | 1974-03-29 |
| TR17474A (en) | 1975-07-23 |
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