GB671459A - Extractive fractionation process - Google Patents
Extractive fractionation processInfo
- Publication number
- GB671459A GB671459A GB10496/48A GB1049648A GB671459A GB 671459 A GB671459 A GB 671459A GB 10496/48 A GB10496/48 A GB 10496/48A GB 1049648 A GB1049648 A GB 1049648A GB 671459 A GB671459 A GB 671459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- complexes
- thiourea
- urea
- regenerated
- compounds
- 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
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/06—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Complexes are formed by contacting a mixture of organic compounds with urea or thiourea, and recycling part of the separated complexes to the remaining mixture. The process effects the separation of straight-chain compounds by complex formation with urea, or of branched-chain compounds by complex formation with thiourea. Diluents or solvents may be added to the reaction mixture and a saturated alcoholic solution of thiourea is mentioned. The complexes may be fractionated and selected fractions recycled or alternatively they may be decomposed and a selected fraction of the regenerated organic compound recycled, to enrich the feed in a particular type of compound. Normal compounds which form complexes with urea are listed in Specification 671,456 and branched-chain compounds forming complexes with thiourea in Specification 650,571. Complexes containing varying proportions of urea may be formed by varying the conditions of reaction. The complexes may be separated, as by filtration, and the organic compounds regenerated as described in Specification 671,456 (except that distillation of the complex with hot gases is not mentioned). The process may be particularly applied to the separation of hydrocarbon mixtures and may be used in separating the products of alkylation, cyclization and isomerization processes. Specifications 671,457 and 671,458 also are referred to.ALSO:Oils are refined by treating with urea or thiourea to form complexes with at least part of the oil, and recycling part of the separated complexes to the remaining mixture. The process effects the separation of straight chain hydrocarbons (forming complexes with urea, inert to thiourea) from branchel chain hydrocarbons (forming complexes with thiourea, inert to urea). Diluents or solvents may be added to the reaction mixture, and a saturated alcoholic solution of thiourea is mentioned. The complexes may be fractionated and selected fractions recycled or alternatively they may be decomposed and a selected fraction of the regenerated hydrocarbon recycled, to enrich the feed oil in a particular type of hydrocarbon. The complexes may be separated, as by filtration, and the hydrocarbons regenerated as described in Specification 671,456, (except that distillation of the complex with hot gases is not mentioned). The process may be applied to hydrocarbons which have been alkylated, cyclized or isomerized and may also be used to obtain high octane gasoline, high Diesel index fuel, and I.C. engine fuels of narrow boiling range. Specifications 671,457, 671,458 and 650,571 also are referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74167647 US2549372A (en) | 1947-04-15 | 1947-04-15 | Extractive fractionation process |
US74167747 US2588506A (en) | 1947-04-15 | 1947-04-15 | Extractive fractionation pbocess |
Publications (1)
Publication Number | Publication Date |
---|---|
GB671459A true GB671459A (en) | 1952-05-07 |
Family
ID=33135367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10496/48A Expired GB671459A (en) | 1947-04-15 | 1948-04-15 | Extractive fractionation process |
Country Status (4)
Country | Link |
---|---|
US (2) | US2588506A (en) |
FR (1) | FR964694A (en) |
GB (1) | GB671459A (en) |
NL (1) | NL72935C (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2681303A (en) * | 1954-06-15 | separation of hydrocarbons and hydrocarbon | ||
US2890161A (en) * | 1959-06-09 | Production of low cold-test oils using urea | ||
US2666048A (en) * | 1954-01-12 | Separation of low molecular weight | ||
US2681333A (en) * | 1954-06-15 | Gorin | ||
US2804451A (en) * | 1957-08-27 | Urea adducts of organic sulfur | ||
US3164579A (en) * | 1965-01-05 | Tffiourea abducts of dimethyl- | ||
US2691009A (en) * | 1954-10-05 | Atent office | ||
US2681335A (en) * | 1954-06-15 | Gorin | ||
US2681904A (en) * | 1954-06-22 | Separation process | ||
US2739144A (en) * | 1956-03-20 | Iio hsvm | ||
US2666020A (en) * | 1949-06-07 | 1954-01-12 | Sepaeation of wax-like constituents | |
US2773858A (en) * | 1950-03-27 | 1956-12-11 | Manuel H Gorin | Method of preparing expanded urea |
US2700664A (en) * | 1950-11-17 | 1955-01-25 | Phillips Petroleum Co | Separation of organic compounds by adduct formation |
US2812373A (en) * | 1951-08-02 | 1957-11-05 | Monsanto Chemicals | Vulcanization of rubber with crystalline adducts of urea |
US2756222A (en) * | 1952-06-17 | 1956-07-24 | Swern Daniel | Purification of long-chain vinyl esters and ethers |
US2849511A (en) * | 1953-05-25 | 1958-08-26 | Union Oil Co | Separation of organic compounds |
US2813851A (en) * | 1953-06-22 | 1957-11-19 | Phillips Petroleum Co | Organic separation with urea and thiourea |
US2801993A (en) * | 1953-08-11 | 1957-08-06 | Rosenstein Ludwig | Expanded thiourea |
DE1040730B (en) * | 1955-12-21 | 1958-10-09 | Chem Fab Dueren G M B H | Process for the manufacture of detergents |
US2926206A (en) * | 1958-02-24 | 1960-02-23 | Union Oil Co | Separation of c-8 aromatic hydrocarbon isomers utilizing werner complexes |
US3082228A (en) * | 1959-12-18 | 1963-03-19 | Escambia Chem Corp | Method for producing monoesters of polyunsaturated fatty acids |
US3158541A (en) * | 1959-12-18 | 1964-11-24 | Escambia Chem Corp | Product for reduction of blood cholesterol concentration |
US4044052A (en) * | 1972-11-03 | 1977-08-23 | Sumitomo Chemical Company, Limited | Process for recovery of urea from its phenolic solution |
JPS5343736B2 (en) * | 1974-01-08 | 1978-11-22 | ||
CN101157871B (en) * | 2007-11-20 | 2013-02-13 | 济南钢铁股份有限公司 | Coal gas naphthalene-purifying waste diesel reclaiming technique |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1830859A (en) * | 1927-09-14 | 1931-11-10 | Schering Kahlbaum Ag | Process for separating meta-cresol from phenolic mixtures |
US2109895A (en) * | 1934-11-19 | 1938-03-01 | Standard Oil Co | Lubricating oil refining |
GB467749A (en) * | 1935-02-27 | 1937-06-23 | Theodor Rotta | Manufacture of urea compounds useful for the treatment of textiles |
GB459189A (en) * | 1935-07-08 | 1937-01-04 | Ig Farbenindustrie Ag | Improvements in the recovery of aromatic compounds from liquid hydrocarbons |
US2246257A (en) * | 1938-07-02 | 1941-06-17 | Shell Dev | Separation of organic mixtures |
NL63052C (en) * | 1938-12-21 | |||
US2300134A (en) * | 1939-01-17 | 1942-10-27 | Schering Corp | Process for the separation of transoestradiol and product obtained thereby |
US2248668A (en) * | 1939-02-11 | 1941-07-08 | Texas Co | Dewaxing hydrocarbon oil |
US2221301A (en) * | 1939-02-13 | 1940-11-12 | Herman B Kipper | Treatment of unsaturated hydrocarbon oils |
US2396303A (en) * | 1940-12-07 | 1946-03-12 | Standard Oil Dev Co | Refining hydrocarbon oils |
US2342888A (en) * | 1940-12-31 | 1944-02-29 | Standard Oil Co | Conversion of hydrocarbons |
US2374102A (en) * | 1940-12-31 | 1945-04-17 | Standard Oil Co | Conversion of hydrocarbons |
US2410166A (en) * | 1941-05-14 | 1946-10-29 | Sinclair Refining Co | Process of separating toluene |
US2386335A (en) * | 1942-04-06 | 1945-10-09 | Phillips Petroleum Co | Process for the separation of hydrocarbons |
US2376008A (en) * | 1942-08-15 | 1945-05-15 | Pittsburgh Coke & Iron Company | Production of lutidine-urea compounds |
US2423414A (en) * | 1943-04-07 | 1947-07-01 | United Gas Improvement Co | Process for recovering diolefins from hydrocarbon mixtures |
-
1947
- 1947-04-15 US US74167747 patent/US2588506A/en not_active Expired - Lifetime
- 1947-04-15 US US74167647 patent/US2549372A/en not_active Expired - Lifetime
-
1948
- 1948-04-14 NL NL139931A patent/NL72935C/xx active
- 1948-04-15 GB GB10496/48A patent/GB671459A/en not_active Expired
- 1948-04-15 FR FR964694D patent/FR964694A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2588506A (en) | 1952-03-11 |
NL72935C (en) | 1953-08-15 |
FR964694A (en) | 1950-08-22 |
US2549372A (en) | 1951-04-17 |
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