GB863711A - Process for purifying crude benzene - Google Patents

Process for purifying crude benzene

Info

Publication number
GB863711A
GB863711A GB3341657A GB3341657A GB863711A GB 863711 A GB863711 A GB 863711A GB 3341657 A GB3341657 A GB 3341657A GB 3341657 A GB3341657 A GB 3341657A GB 863711 A GB863711 A GB 863711A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
crude benzene
heated
benzene
washed
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
GB3341657A
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.)
Heinrich Koppers GmbH
Scholven Chemie AG
Original Assignee
Heinrich Koppers GmbH
Scholven Chemie AG
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 Heinrich Koppers GmbH, Scholven Chemie AG filed Critical Heinrich Koppers GmbH
Publication of GB863711A publication Critical patent/GB863711A/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
    • C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
    • 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
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
    • 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
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/30—Aromatics

Abstract

Crude benzene prior to being refined by treatment in the vapour phase with hydrogen over an oxide or sulphide of an element of Group 5, 6 or 8 at elevated temperature and pressure, is washed with water, preferably an amount of 2-15% by weight of the crude benzene before being compressed and heated. After washing the benzene is stored in the presence of hydrogen for 1/2 -2 hours at 20-200 atmospheres and 180-300 DEG C. to polymerise unsaturated impurities. The vaporisable material is then vapourised and more hydrogen added while high-boiling residues are rejected and the vapour-hydrogen mixture is heated to about 340 DEG C. and passed over the catalyst which may be disposed on a carrier, such as molybdic acid-zinc oxide or molybdic acidalumina. The product is cooled, the gases separated and recycled and the liquid product alkali and water washed.
GB3341657A 1956-10-27 1957-10-25 Process for purifying crude benzene Expired GB863711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH21006A DE1253277B (en) 1956-10-27 1956-10-27 Process for purifying crude benzene

Publications (1)

Publication Number Publication Date
GB863711A true GB863711A (en) 1961-03-22

Family

ID=7428914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3341657A Expired GB863711A (en) 1956-10-27 1957-10-25 Process for purifying crude benzene

Country Status (2)

Country Link
DE (1) DE1253277B (en)
GB (1) GB863711A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE287962C (en) *
FR621505A (en) * 1925-09-15 1927-05-12 Ig Farbenindustrie Ag Process for the purification of crude benzols, etc.
DE844440C (en) * 1949-11-29 1952-07-21 Scholven Chemie Ag Process for the catalytic pressure refining of benzene hydrocarbons

Also Published As

Publication number Publication date
DE1253277B (en) 1967-11-02

Similar Documents

Publication Publication Date Title
GB962235A (en) Hydrogenation of nitriles
GB863711A (en) Process for purifying crude benzene
GB1017605A (en) Improvements in or relating to the preparation of dialkyl terephthalates
GB990612A (en) A process for purifying aliphatic glycols
GB746413A (en) Method of recovering para-nitrochlorobenzene
GB879549A (en) Purification of maleic anhydride
ES390457A1 (en) Process for the production of cyclopentadiene from dicyclopentadiene
GB791362A (en) A process for the recovery of acetylene from gas mixtures
GB879564A (en) Process for the production of cyclohexanone from cyclohexylamine
GB798456A (en) Maleic anhydride recovery
GB1023856A (en) Method for purifying aqueous solutions of methylbutynol
GB864881A (en) Process for the production of 1-chloro-2:3-epoxy-4-hydroxybutane
GB832855A (en) Catalytic dehydrogenation of n-methylpyrrolidine
GB576553A (en) Process for the production of hydrogenated furnas or mixtures of hydrogenated furans
GB487285A (en) Hydrogenation of organic materials
GB742041A (en) Improvements in or relating to the production of toluic acids
GB704820A (en) Improvements in or relating to process for producing trichlorobenzene
GB791747A (en) Alcohol hydrofinishing
GB942427A (en) Process for the production of hexamethyleneimine from di-(ªÏ-amino-n-hexyl)-amine
GB998824A (en) Method of obtaining cyclohexanone from cyclohexanol
GB770338A (en) A process for the production of meta-aminostyrene
GB824567A (en) Process for producing pure monovinylacetylene from gas mixtures
GB788349A (en) Process for the synthesis of 1-bromo-4-chlorobutane
GB979521A (en) Process of purifying phenanthrene
GB793135A (en) Improvements in or relating to the production of aromatic hydrocarbons