GB1231719A - - Google Patents

Info

Publication number
GB1231719A
GB1231719A GB1231719DA GB1231719A GB 1231719 A GB1231719 A GB 1231719A GB 1231719D A GB1231719D A GB 1231719DA GB 1231719 A GB1231719 A GB 1231719A
Authority
GB
United Kingdom
Prior art keywords
vapour
benzene
carboxylic acid
ammonium salt
salt
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
Other languages
English (en)
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 filed Critical
Publication of GB1231719A publication Critical patent/GB1231719A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42Separation; Purification; Stabilisation; Use of additives
    • C07C51/43Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Pyrane Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB1231719D 1968-07-12 1969-06-25 Expired GB1231719A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS513368 1968-07-12

Publications (1)

Publication Number Publication Date
GB1231719A true GB1231719A (ja) 1971-05-12

Family

ID=5395629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231719D Expired GB1231719A (ja) 1968-07-12 1969-06-25

Country Status (3)

Country Link
DE (1) DE1931843A1 (ja)
FR (1) FR2012826A1 (ja)
GB (1) GB1231719A (ja)

Also Published As

Publication number Publication date
FR2012826A1 (ja) 1970-03-27
DE1931843A1 (de) 1970-01-15

Similar Documents

Publication Publication Date Title
CA2089663A1 (en) Improved tangential filtration process and apparatus
RO72229A (ro) Procedeu pentru recuperarea oxidului de etilena din efluentul gazos produs la oxidarea partiala a etilenei
BE792519A (fr) Recuperation de metaux catalytiques des residus de la production d'acides aromatiques par oxydation catalytique en phase liquide
GB1484860A (en) Manufacture of boric acid
GB1346737A (en) Process for purification of acrylic acid
GB1533542A (en) Separation and purification of platinum and palladium
GB1420511A (en) Process for the purification of cyclohexanone
GB1231719A (ja)
GB1189607A (en) Purification Process
CA1017536A (en) Process for the separation and recovery of ammonia and acid gases
EP0474509A3 (en) Method for purification of ibuprofen comprising mixtures
FR2308401A1 (fr) Procede de separation des isotopes de l'uranium par excitation infrarouge
JPS525733A (en) Process for separation and purification of cyclohexene
GB1366808A (en) Direct reduction process for production of aluminium
GB1198160A (en) A Method of Refining 2,6-Xylenol
FR2509630B1 (fr) Procede pour eliminer des impuretes, notamment le potassium, des catalyseurs usages d'argent pour la production d'oxyde d'ethylene
GB1413224A (en) Purifying 1,4-dicyanobutenes
SU712392A1 (ru) Способ очистки вольфрамовой кислоты
GB1354224A (en) Purification of yellow phosphorus
GB1335226A (en) Process for the recovery of acrylonitrile from aqueous solutions
JPS5262207A (en) Purification process for chloroform
JPS5233699A (en) Separation and purification of stigmasterol and brassicasterol from ph ytosterol
JPS51127043A (en) Process for purification of cyclohexene
GB1422725A (en) Process for the purification of water
JPS5235799A (en) Recovery method for zeolite

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees