GB1037540A - Improvements relating to the preparation of epsiloncaprolactam - Google Patents

Improvements relating to the preparation of epsiloncaprolactam

Info

Publication number
GB1037540A
GB1037540A GB1343264A GB1343264A GB1037540A GB 1037540 A GB1037540 A GB 1037540A GB 1343264 A GB1343264 A GB 1343264A GB 1343264 A GB1343264 A GB 1343264A GB 1037540 A GB1037540 A GB 1037540A
Authority
GB
United Kingdom
Prior art keywords
pellets
epsiloncaprolactam
air
preparation
improvements relating
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
GB1343264A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1037540A publication Critical patent/GB1037540A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/18—Stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polyamides (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention comprises caprolactam in the form of round pellets. The pellets preferably have a mean diameter of 0.5-5 mm. and contain less than 0.3% by weight of moisture. The pellets may be prepared by dividing molten caprolactam into drops, e.g. by spraying and solidifying by direct cooling in a gaseous medium, e.g. air. In the examples, the drops fall down a tower against an upward current of air. Additives may include stabilizers such as anti-oxidants, and catalysts for the polymerization of the lactam.
GB1343264A 1963-04-01 1964-04-01 Improvements relating to the preparation of epsiloncaprolactam Expired GB1037540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL290997 1963-04-01

Publications (1)

Publication Number Publication Date
GB1037540A true GB1037540A (en) 1966-07-27

Family

ID=19754583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343264A Expired GB1037540A (en) 1963-04-01 1964-04-01 Improvements relating to the preparation of epsiloncaprolactam

Country Status (7)

Country Link
AT (1) AT251556B (en)
BE (1) BE645914A (en)
CH (1) CH437303A (en)
ES (1) ES298189A1 (en)
GB (1) GB1037540A (en)
NL (1) NL290997A (en)
SE (1) SE315899B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130261282A1 (en) * 2012-03-27 2013-10-03 Basf Se Process for Producing Polyamide Moldings From a Polymerizable Composition by Means of Rotomolding Processes
US20140142274A1 (en) * 2011-07-05 2014-05-22 Basf Se Solid particles, containing lactam, activator, and catalyst, method for producing said solid particles, and use of said solid particles
US20150051368A1 (en) * 2011-09-08 2015-02-19 Lanxess Deutschland Gmbh Novel compositions for producing cast polyamides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140142274A1 (en) * 2011-07-05 2014-05-22 Basf Se Solid particles, containing lactam, activator, and catalyst, method for producing said solid particles, and use of said solid particles
US20150051368A1 (en) * 2011-09-08 2015-02-19 Lanxess Deutschland Gmbh Novel compositions for producing cast polyamides
US20130261282A1 (en) * 2012-03-27 2013-10-03 Basf Se Process for Producing Polyamide Moldings From a Polymerizable Composition by Means of Rotomolding Processes

Also Published As

Publication number Publication date
BE645914A (en) 1964-09-30
AT251556B (en) 1967-01-10
NL290997A (en)
SE315899B (en) 1969-10-13
ES298189A1 (en) 1964-09-01
CH437303A (en) 1967-06-15

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