FR2138844B1 - - Google Patents

Info

Publication number
FR2138844B1
FR2138844B1 FR727218157A FR7218157A FR2138844B1 FR 2138844 B1 FR2138844 B1 FR 2138844B1 FR 727218157 A FR727218157 A FR 727218157A FR 7218157 A FR7218157 A FR 7218157A FR 2138844 B1 FR2138844 B1 FR 2138844B1
Authority
FR
France
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
FR727218157A
Other languages
French (fr)
Other versions
FR2138844A1 (en
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.)
DuPont Canada Inc
Original Assignee
DuPont Canada Inc
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 DuPont Canada Inc filed Critical DuPont Canada Inc
Publication of FR2138844A1 publication Critical patent/FR2138844A1/fr
Application granted granted Critical
Publication of FR2138844B1 publication Critical patent/FR2138844B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/32—Separation; Purification; Stabilisation; Use of additives
    • C07C253/34—Separation; Purification
FR727218157A 1971-05-21 1972-05-19 Expired FR2138844B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA113714 1971-05-21

Publications (2)

Publication Number Publication Date
FR2138844A1 FR2138844A1 (en) 1973-01-05
FR2138844B1 true FR2138844B1 (en) 1973-07-13

Family

ID=4089770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727218157A Expired FR2138844B1 (en) 1971-05-21 1972-05-19

Country Status (5)

Country Link
CA (1) CA912036A (en)
DE (1) DE2223929A1 (en)
FR (1) FR2138844B1 (en)
GB (1) GB1367006A (en)
IT (1) IT955710B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146555A (en) 1975-08-26 1979-03-27 Du Pont Of Canada Limited Process for purifying adiponitrile
CN109071421B (en) 2016-05-02 2022-02-25 英威达纺织（英国）有限公司 Process for reducing CPI in dinitrile streams
CN115023415B (en) * 2020-01-31 2024-03-22 英威达纺织（英国）有限公司 Reduction of impurity formation during product refinement
CN113429316A (en) * 2021-06-30 2021-09-24 瑞典国际化工技术有限公司 Method for refining adiponitrile

Also Published As

Publication number Publication date
GB1367006A (en) 1974-09-18
IT955710B (en) 1973-09-29
DE2223929A1 (en) 1972-12-07
FR2138844A1 (en) 1973-01-05
CA912036A (en) 1972-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse