GB795872A - Improvements in or relating to liquid-liquid countercurrent extraction of a liquid mixture - Google Patents

Improvements in or relating to liquid-liquid countercurrent extraction of a liquid mixture

Info

Publication number
GB795872A
GB795872A GB12921/55A GB1292155A GB795872A GB 795872 A GB795872 A GB 795872A GB 12921/55 A GB12921/55 A GB 12921/55A GB 1292155 A GB1292155 A GB 1292155A GB 795872 A GB795872 A GB 795872A
Authority
GB
United Kingdom
Prior art keywords
liquid
solvent
extraction
zone
countercurrent extraction
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
GB12921/55A
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Publication of GB795872A publication Critical patent/GB795872A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
    • B01D11/043—Counter-current multistage extraction towers in a vertical or sloping position with stationary contacting elements, sieve plates or loose contacting elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

In the liquid-liquid countercurrent extraction of a liquid mixture with a selective solvent partially miscible therewith, additional selective solvent or extract phase is added at a point downstream from the point of introduction of the first solvent in an amount to maintain the specific gravity differential between the raffinate and extract phases at at least 0.2. The process may be used in the "Duo Sol" solvent extraction process wherein 2 immiscible solvents are flowing countercurrently. Liquid mixtures specified are petroleum fractions such as gasolines, naphthas, kerosenes, gas oils, e.g. catalytic cycle gas oil, and lubricating oils. Solvents referred to are nitrobenzene, liquid propane or sulphur dioxide, b ,b 1-dichloroethyl ether, phenols, furfural and liquid hydrogen fluoride. The process is described with reference to the Figure which shows an extraction zone, consisting of a contacting zone superimposed on a settling zone, containing contact masses to promote mixing.
GB12921/55A 1954-05-21 1955-05-04 Improvements in or relating to liquid-liquid countercurrent extraction of a liquid mixture Expired GB795872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US795872XA 1954-05-21 1954-05-21

Publications (1)

Publication Number Publication Date
GB795872A true GB795872A (en) 1958-06-04

Family

ID=22151481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12921/55A Expired GB795872A (en) 1954-05-21 1955-05-04 Improvements in or relating to liquid-liquid countercurrent extraction of a liquid mixture

Country Status (1)

Country Link
GB (1) GB795872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2958975A4 (en) * 2013-02-25 2016-11-16 Meg Energy Corp Improved separation of solid asphaltenes from heavy liquid hydrocarbons using novel apparatus and process ("ias")

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2958975A4 (en) * 2013-02-25 2016-11-16 Meg Energy Corp Improved separation of solid asphaltenes from heavy liquid hydrocarbons using novel apparatus and process ("ias")
US9976093B2 (en) 2013-02-25 2018-05-22 Meg Energy Corp. Separation of solid asphaltenes from heavy liquid hydrocarbons using novel apparatus and process (“IAS”)
KR101921375B1 (en) 2013-02-25 2018-11-22 메그 에너지 코오퍼레이션 Improved separation of solid asphaltenes from heavy liquid hydrocarbons using novel apparatus and process (“ias”)
US10280373B2 (en) 2013-02-25 2019-05-07 Meg Energy Corp. Separation of solid asphaltenes from heavy liquid hydrocarbons using novel apparatus and process (“IAS”)

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