GB1459044A - Concentrated copper -1- nitrate/propionitrile solutions as complexing agents for olefin separations - Google Patents

Concentrated copper -1- nitrate/propionitrile solutions as complexing agents for olefin separations

Info

Publication number
GB1459044A
GB1459044A GB1144774A GB1144774A GB1459044A GB 1459044 A GB1459044 A GB 1459044A GB 1144774 A GB1144774 A GB 1144774A GB 1144774 A GB1144774 A GB 1144774A GB 1459044 A GB1459044 A GB 1459044A
Authority
GB
United Kingdom
Prior art keywords
propionitrile
solution
cuno
styrene
complex
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
GB1144774A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1459044A publication Critical patent/GB1459044A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00Compounds of copper
    • C01G3/08Nitrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1459044 Separating hydrocarbons using CuNO 3 -propionitrile solutions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 March 1974 [16 March 1973 (2)] 11447/74 Heading C5E A substantially anhydrous solution of CuNO 3 in propionitrile containing up to 26 wt. per cent Cu<SP>+</SP> and not more than 5 wt. per cent Cu<SP>++</SP> is used to separate an unsaturated hydrocarbon from less unsaturated and/or saturated hydrocarbons by selective complex formation of the unsaturated hydrocarbon with the copper (I) followed by decomposition of the complex. The solution is prepared by reacting Cu(NO 3 ) 2 and Cu in amounts to give on complete conversion not more than 4% by wt. Cu<SP>+</SP> in propionitrile solution at elevated temperature and then removing a proportion of the propionitrile solvent, e.g. by distillation under reduced pressure. Styrene may be separated from ethylbenzene; ethylene and/or propylene from methane, ethane, and/or propane; and butadiene and/or isoprene from C 4 -C 4 alkenes and alkanes. The hydrocarbon mixture may be contacted with the CuNO 3 -propionitrile solution at 30-80‹C., preferably countercurrently in an extractive distillation column. The separation of styrene may be carried out in the presence of a C 5 -C 18 paraffin counter-solvent in a rotating disc contactor, the styrene being recovered from the complex with Cu<SP>I</SP> by ligand exchange with an excess of a C 10 -C 14 olefinically unsaturated compound.
GB1144774A 1973-03-16 1974-03-14 Concentrated copper -1- nitrate/propionitrile solutions as complexing agents for olefin separations Expired GB1459044A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34211473A 1973-03-16 1973-03-16
US34211573A 1973-03-16 1973-03-16

Publications (1)

Publication Number Publication Date
GB1459044A true GB1459044A (en) 1976-12-22

Family

ID=26992828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1144774A Expired GB1459044A (en) 1973-03-16 1974-03-14 Concentrated copper -1- nitrate/propionitrile solutions as complexing agents for olefin separations

Country Status (6)

Country Link
JP (1) JPS49125324A (en)
CA (1) CA1023392A (en)
DE (1) DE2412326A1 (en)
FR (1) FR2224426B1 (en)
GB (1) GB1459044A (en)
IT (1) IT1009286B (en)

Also Published As

Publication number Publication date
FR2224426A1 (en) 1974-10-31
CA1023392A (en) 1977-12-27
IT1009286B (en) 1976-12-10
FR2224426B1 (en) 1978-01-06
JPS49125324A (en) 1974-11-30
DE2412326A1 (en) 1974-09-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee