GB439674A - A process for improving mineral lubricating oils - Google Patents

A process for improving mineral lubricating oils

Info

Publication number
GB439674A
GB439674A GB3317535A GB3317535A GB439674A GB 439674 A GB439674 A GB 439674A GB 3317535 A GB3317535 A GB 3317535A GB 3317535 A GB3317535 A GB 3317535A GB 439674 A GB439674 A GB 439674A
Authority
GB
United Kingdom
Prior art keywords
solvent
oil
freed
mineral lubricating
viscosity
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
GB3317535A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3317535A priority Critical patent/GB439674A/en
Publication of GB439674A publication Critical patent/GB439674A/en
Expired legal-status Critical Current

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
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
    • C10G21/12—Organic compounds only
    • C10G21/16—Oxygen-containing compounds

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)
  • Lubricants (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Mineral lubricating-oils are improved as regards the temperature-viscosity curve by treatment with a selective solvent consisting of methanol mixed with other solvents having a greater solvent power for aromatic and naphthenic hydrocarbons as described in Specification 439,621, but excluding sulphur dioxide. Lubricating oil is agitated with a mixture containing equal parts of methanol and phenol or nitrobenzene at 20 to 100 DEG C., and allowed to separate into layers. The upper layer is drawn off and freed from solvent by distillation leaving a lubricating oil of high viscosity index. The oil and solvent may be passed in countercurrent. The resulting oil may be freed from wax to improve the setting point or substances added for this purpose. Agents preventing resinification or ageing may be added together with dyestuffs, agents increasing the viscosity such as polymerized isobutylene, or substances producing fluorescence. Specification 369,737 also is referred to.
GB3317535A 1934-04-03 1934-04-03 A process for improving mineral lubricating oils Expired GB439674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3317535A GB439674A (en) 1934-04-03 1934-04-03 A process for improving mineral lubricating oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3317535A GB439674A (en) 1934-04-03 1934-04-03 A process for improving mineral lubricating oils

Publications (1)

Publication Number Publication Date
GB439674A true GB439674A (en) 1935-12-11

Family

ID=10349527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3317535A Expired GB439674A (en) 1934-04-03 1934-04-03 A process for improving mineral lubricating oils

Country Status (1)

Country Link
GB (1) GB439674A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444582A (en) * 1944-01-20 1948-07-06 Blaw Knox Co Selective solvent treatment of liquid hydrocarbon mixtures for segregation of contained aromatics
US2695322A (en) * 1949-10-24 1954-11-23 Phillips Petroleum Co Separation of naphthenes from a saturated hydrocarbon mixture with the use of methylalcohol and water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444582A (en) * 1944-01-20 1948-07-06 Blaw Knox Co Selective solvent treatment of liquid hydrocarbon mixtures for segregation of contained aromatics
US2695322A (en) * 1949-10-24 1954-11-23 Phillips Petroleum Co Separation of naphthenes from a saturated hydrocarbon mixture with the use of methylalcohol and water

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