ES381945A1 - Process for the extraction of aromatic hydrocarbons by keto and aldo-morpholines - Google Patents

Process for the extraction of aromatic hydrocarbons by keto and aldo-morpholines

Info

Publication number
ES381945A1
ES381945A1 ES381945A ES381945A ES381945A1 ES 381945 A1 ES381945 A1 ES 381945A1 ES 381945 A ES381945 A ES 381945A ES 381945 A ES381945 A ES 381945A ES 381945 A1 ES381945 A1 ES 381945A1
Authority
ES
Spain
Prior art keywords
stage
aldo
keto
aromatic hydrocarbons
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
ES381945A
Other languages
Spanish (es)
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of ES381945A1 publication Critical patent/ES381945A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
    • 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
    • B01D11/0488—Flow sheets
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A multi-stage countercurrent process for the solvent extraction of aromatic hydrocarbons from a mixed feed stock is disclosed wherein the feed is contacted with a keto- or aldo-morpholine and extracted in a first stage, extract from the first stage is purified in a second stage by countercurrent contact with an overhead fraction from a third stage wherein the second stage extract is distilled, and rectification is effected in a fourth stage wherein water is refluxed and a part of the water, obtained as reflux free of solvent, is vaporized and recycled to the bottom of this rectification stage to recover the sensible heat of lean solvent.
ES381945A 1969-07-18 1970-07-17 Process for the extraction of aromatic hydrocarbons by keto and aldo-morpholines Expired ES381945A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1981269 1969-07-18

Publications (1)

Publication Number Publication Date
ES381945A1 true ES381945A1 (en) 1972-12-01

Family

ID=11161483

Family Applications (1)

Application Number Title Priority Date Filing Date
ES381945A Expired ES381945A1 (en) 1969-07-18 1970-07-17 Process for the extraction of aromatic hydrocarbons by keto and aldo-morpholines

Country Status (17)

Country Link
US (1) US3720605A (en)
JP (1) JPS4924901B1 (en)
AT (1) AT312138B (en)
BE (1) BE753353A (en)
BG (1) BG25642A3 (en)
CA (1) CA955875A (en)
CS (1) CS167923B2 (en)
DE (3) DE2065780B2 (en)
DK (1) DK131511B (en)
ES (1) ES381945A1 (en)
FR (1) FR2051835B1 (en)
GB (1) GB1271596A (en)
LU (1) LU61349A1 (en)
NL (1) NL167143C (en)
RO (1) RO61637A (en)
SU (1) SU365071A3 (en)
YU (1) YU35748B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081355A (en) * 1970-08-12 1978-03-28 Krupp-Koppers Gmbh Process for recovering highly pure aromatics from a mixture of aromatics and non-aromatics
US3953300A (en) * 1972-11-29 1976-04-27 Snam Progetti, S.P.A. Process for separating a high purity vinyl aromatic hydrocarbon from hydrocarbon mixtures containing the same
US6565742B1 (en) * 1997-09-03 2003-05-20 Gtc Technology Inc. Aromatics separation process and method of retrofitting existing equipment for same
US8460517B2 (en) * 2009-09-02 2013-06-11 Gtc Technology Us Llc Methods and apparatuses for steam addition to a reboiler coupled to an extractive distillation column for improved extractive distillation
US9770032B2 (en) * 2010-02-17 2017-09-26 Osprey Biotechnics, Inc. Compositions for stabilizing bacillus spores and methods of use thereof
US9138658B2 (en) 2011-01-31 2015-09-22 Exxonmobil Chemical Patents Inc. Solvent quality control in extraction processes
US8471088B2 (en) 2011-01-31 2013-06-25 Exxonmobil Chemical Patents Inc. Solvent quality control in extraction processes
CN104718276B (en) * 2012-08-09 2017-08-25 科学工业研究委员会 Method for preparing poor benzoline by reclaiming high-purity benzene from the unprocessed cracked naphtha containing organic peroxide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262875A (en) * 1961-06-07 1966-07-26 Snam Societa Per Azioni Process for extracting high-purity aromatic hydrocarbons from a hydrocarbonaceous mixture
GB1119292A (en) * 1964-10-14 1968-07-10 Snam Spa Process for extracting aromatic hydrocarbons from hydrocarbon mixtures containing same
US3487013A (en) * 1968-02-26 1969-12-30 Universal Oil Prod Co Solvent extraction with recycle of light nonaromatic fraction
US3558480A (en) * 1968-10-28 1971-01-26 Universal Oil Prod Co Light and heavy reflux streams in solvent extraction of aromatics
US3551327A (en) * 1969-03-12 1970-12-29 Universal Oil Prod Co Extractive distillation of aromatics with a sulfolane solvent

Also Published As

Publication number Publication date
YU35748B (en) 1981-06-30
US3720605A (en) 1973-03-13
LU61349A1 (en) 1970-09-16
SU365071A3 (en) 1972-12-28
NL167143C (en) 1981-11-16
CS167923B2 (en) 1976-05-28
DK131511B (en) 1975-07-28
YU165570A (en) 1980-10-31
DE2065780B2 (en) 1978-12-14
RO61637A (en) 1977-02-15
DE2065779B2 (en) 1979-01-04
GB1271596A (en) 1972-04-19
BE753353A (en) 1970-12-16
FR2051835B1 (en) 1973-04-27
BG25642A3 (en) 1978-11-10
DE2065779A1 (en) 1975-09-18
DE2065779C3 (en) 1979-08-30
NL7010676A (en) 1971-01-20
DE2035315B2 (en) 1977-04-28
DE2065780A1 (en) 1975-09-11
NL167143B (en) 1981-06-16
DE2035315C3 (en) 1979-02-01
JPS4924901B1 (en) 1974-06-26
CA955875A (en) 1974-10-08
FR2051835A1 (en) 1971-04-09
DE2065780C3 (en) 1979-08-23
AT312138B (en) 1973-12-27
DK131511C (en) 1975-12-22
DE2035315A1 (en) 1971-05-19

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