GB671459A - Extractive fractionation process - Google Patents

Extractive fractionation process

Info

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
Application number
GB10496/48A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB671459A publication Critical patent/GB671459A/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
    • 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.
GB10496/48A 1947-04-15 1948-04-15 Extractive fractionation process Expired GB671459A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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