Title:
ANTIGELLING AGENT FOR HYDROCARBON MIXTURE CONTAINING CONJUGATED DIENE AND METHOD OF PREVENTING CLOGGING OF APPARATUS FOR SEPARATING AND PURIFYING THE MIXTURE
Document Type and Number:
WIPO Patent Application WO/2000/061701
Kind Code:
A1
Abstract:
An antigelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule and precursors capable of forming an NO radical; (b) a phosphorus compound, and (c) at least one compound selected from the group consisting of heterocyclic aldehydes, aromatic aldehydes, and condensates of these. By adding the antigelling agent to an apparatus for separating and purifying a hydrocarbon mixture containing a conjugated diene, the apparatus is prevented from being clogged.
Inventors:
UKITA KEIZO (JP)
Application Number:
PCT/JP2000/002285
Publication Date:
October 19, 2000
Filing Date:
April 07, 2000
Export Citation:
Assignee:
NIPPON ZEON CO (JP)
UKITA KEIZO (JP)
UKITA KEIZO (JP)
International Classes:
C07C11/12; C09K3/00; C10G7/00; C10G9/16; C07C7/20; C10G75/04; C10L1/02; C10L1/04; (IPC1-7): C10G7/00; C10G7/08; C07C11/18; C07C11/167
Domestic Patent References:
| WO1999044972A1 | 1999-09-10 |
Foreign References:
| JPH10251662A | 1998-09-22 | |||
| JPH10251663A | 1998-09-22 | |||
| DE2166126A1 | 1973-04-26 |
Other References:
See also references of EP 1184444A4
Attorney, Agent or Firm:
Uchida, Yukio (Shiba 2-chome Minato-ku Tokyo, JP)
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