JPS579747A - Preparation of acrylamide - Google Patents

Preparation of acrylamide

Info

Publication number
JPS579747A
JPS579747A JP8395680A JP8395680A JPS579747A JP S579747 A JPS579747 A JP S579747A JP 8395680 A JP8395680 A JP 8395680A JP 8395680 A JP8395680 A JP 8395680A JP S579747 A JPS579747 A JP S579747A
Authority
JP
Japan
Prior art keywords
acrylonitrile
copper
acrylamide
containing catalyst
previously purified
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.)
Pending
Application number
JP8395680A
Other languages
Japanese (ja)
Inventor
Junji Mikami
Masatoshi Kumamoto
Hiroshi Kato
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals 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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP8395680A priority Critical patent/JPS579747A/en
Publication of JPS579747A publication Critical patent/JPS579747A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain acrylamide useful for preparing a high-molecular flocculating agent having improved cohesiveness and solubility, by limiting the oligomer content of previously purified acrylonitrile to not more than a specific value, followed by subjecting it catalytic hydration in the presence of a copper-containing catalyst.
CONSTITUTION: Acrylonitrile is previously purified by distillation, water extraction, etc. so that the content of acrylonitrile oligomers having molecular weight ≤1,000 is usually adjusted to ≤100ppm, preferably ≤5ppm. After that, acrylonitrile is subjected to catalytic hydration in the presence of a copper-containing catalyst, e.g., Raney copper, etc., for example, at 50W150°C, to give the desired acrylamide.
EFFECT: The formation of by-products during hydration reaction is suppressed.
COPYRIGHT: (C)1982,JPO&Japio
JP8395680A 1980-06-23 1980-06-23 Preparation of acrylamide Pending JPS579747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8395680A JPS579747A (en) 1980-06-23 1980-06-23 Preparation of acrylamide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8395680A JPS579747A (en) 1980-06-23 1980-06-23 Preparation of acrylamide

Publications (1)

Publication Number Publication Date
JPS579747A true JPS579747A (en) 1982-01-19

Family

ID=13817021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8395680A Pending JPS579747A (en) 1980-06-23 1980-06-23 Preparation of acrylamide

Country Status (1)

Country Link
JP (1) JPS579747A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108916A (en) * 1976-03-05 1977-09-12 Mitsubishi Chem Ind Ltd Preparaion of acrylamide by hydration of acrylonitrile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108916A (en) * 1976-03-05 1977-09-12 Mitsubishi Chem Ind Ltd Preparaion of acrylamide by hydration of acrylonitrile

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