GB972946A - Improvements in or relating to the extraction of naphthalenic hydrocarbons - Google Patents
Improvements in or relating to the extraction of naphthalenic hydrocarbonsInfo
- Publication number
- GB972946A GB972946A GB11981/63A GB1198163A GB972946A GB 972946 A GB972946 A GB 972946A GB 11981/63 A GB11981/63 A GB 11981/63A GB 1198163 A GB1198163 A GB 1198163A GB 972946 A GB972946 A GB 972946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- counter
- polar solvent
- paraffinic
- extract
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
-
- 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
- C10G21/02—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents with two or more solvents, which are introduced or withdrawn separately
- C10G21/04—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents with two or more solvents, which are introduced or withdrawn separately by introducing simultaneously at least two immiscible solvents counter-current to each other
-
- 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
-
- 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
- C10G21/27—Organic compounds not provided for in a single one of groups C10G21/14 - C10G21/26
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Naphthalene hydrocarbons are separated from mixtures also containing benzene hydrocarbons and aliphatic hydrocarbons by solvent extraction in which an extract of aromatic hydrocarbons in a polar solvent is obtained by contacting the mixture with a 5-membered heterocyclic compound selected from alkylene carbonates, gamma lactones and lactams and contacting the extract so formed with a paraffinic counter-solvent immiscible in the polar solvent and recovering naphthalenes from the polar solvent. In one embodiment the two contacting operations are carried out separately, the extract and raffinate from the first stage being separated and the extract being passed to the second stage; alternatively, the two are carried out in a single counter-current contacting step, introducing polar solvent at the top, paraffinic counter-solvent at the bottom and hydrocarbon feed intermediately. The polar solvent is preferably introduced dry and water introduced during the contact with counter-solvent, preferably in stages, up to a total of 15% by weight of the polar solvent. The volume ratio of polar solvent to hydrocarbon feed may be 0.3-3.5 and the volume ratio of polar solvent to paraffinic counter-solvent may be 0.3-7.0. Temperatures up to 125 DEG C. may be used. Naphthalenes are preferably recovered by adding water to the solvent, if necessary adding also an oil to prevent solidification of the naphthalene. Specified polar solvents are ethylene, propylene and chloropropylene carbonate, butyrolactone, valerolactone and crotonolactone, and butyrolactam (2-pyrrolidone) and its N-methyl derivative. The paraffinic counter-solvent may be propane, n-heptane, n-dodecane or a paraffinic mixture.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR892409A FR1326487A (en) | 1962-03-27 | 1962-03-27 | Process for the extraction of naphthalene hydrocarbons |
Publications (1)
Publication Number | Publication Date |
---|---|
GB972946A true GB972946A (en) | 1964-10-21 |
Family
ID=8775446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11981/63A Expired GB972946A (en) | 1962-03-27 | 1963-03-26 | Improvements in or relating to the extraction of naphthalenic hydrocarbons |
Country Status (4)
Country | Link |
---|---|
US (1) | US3280024A (en) |
DE (1) | DE1443588A1 (en) |
FR (1) | FR1326487A (en) |
GB (1) | GB972946A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1567956A (en) * | 1966-12-06 | 1969-05-23 | ||
CH673405A5 (en) * | 1988-02-18 | 1990-03-15 | Szabolcs Dr Nyiredy | |
WO2008106406A1 (en) * | 2007-02-26 | 2008-09-04 | Gabriel Farkas | Method for production of mineral oils |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2095972A (en) * | 1934-03-07 | 1937-10-19 | Houdry Process Corp | Solvent extraction in successive operations |
GB459595A (en) * | 1935-04-09 | 1937-01-11 | Hugh Logie Allan | Improvements relating to the refining of hydrocarbon liquids |
US2319813A (en) * | 1940-04-29 | 1943-05-25 | Universal Oil Prod Co | Separation of polynuclear from mononuclear aromatics |
US2803685A (en) * | 1952-06-02 | 1957-08-20 | Dow Chemical Co | Process for the extraction and recovery of aromatic hydrocarbons from hydrocarbon mixtures |
US2812372A (en) * | 1953-07-06 | 1957-11-05 | Pure Oil Co | Solvent extraction of naphthalenes |
US3051650A (en) * | 1954-07-06 | 1962-08-28 | Exxon Research Engineering Co | Solvent extraction with liquid sulfur dioxide followed by hydrocarbon wash |
US2963429A (en) * | 1954-10-25 | 1960-12-06 | Ohio Oil Company | Separation of hydrocarbon mixtures to recover aromatic hydrocarbons utilizing lactone-water solvents |
US2963427A (en) * | 1956-04-18 | 1960-12-06 | Standard Oil Co | Aromatics recovery system using butyrolactone in the first stage and propane in the second stage |
US2943122A (en) * | 1957-06-19 | 1960-06-28 | Ohio Oil Company | Fractionation of mixtures of aromatic compounds utilizing gamma lactum solvents |
US3210259A (en) * | 1961-06-26 | 1965-10-05 | Monsanto Co | Extractive separation process |
-
1962
- 1962-03-27 FR FR892409A patent/FR1326487A/en not_active Expired
-
1963
- 1963-03-22 US US267361A patent/US3280024A/en not_active Expired - Lifetime
- 1963-03-26 GB GB11981/63A patent/GB972946A/en not_active Expired
- 1963-03-26 DE DE19631443588 patent/DE1443588A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3280024A (en) | 1966-10-18 |
DE1443588A1 (en) | 1969-01-30 |
FR1326487A (en) | 1963-05-10 |
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