ES2100120A1 - Discontinuous ion exchange process for the purification of crude polyether polyols - Google Patents

Discontinuous ion exchange process for the purification of crude polyether polyols

Info

Publication number
ES2100120A1
ES2100120A1 ES09401514A ES9401514A ES2100120A1 ES 2100120 A1 ES2100120 A1 ES 2100120A1 ES 09401514 A ES09401514 A ES 09401514A ES 9401514 A ES9401514 A ES 9401514A ES 2100120 A1 ES2100120 A1 ES 2100120A1
Authority
ES
Spain
Prior art keywords
purification
ion exchange
crude polyether
polyether polyols
exchange process
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.)
Granted
Application number
ES09401514A
Other languages
Spanish (es)
Other versions
ES2100120B1 (en
Inventor
Lucas Martinez Antonio De
Canizares Pablo Canizares
Romero Juan Francisc Rodriguez
Novella Enrique Costa
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.)
Repsol Quimica SA
Original Assignee
Repsol Quimica SA
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 Repsol Quimica SA filed Critical Repsol Quimica SA
Priority to ES09401514A priority Critical patent/ES2100120B1/en
Publication of ES2100120A1 publication Critical patent/ES2100120A1/en
Application granted granted Critical
Publication of ES2100120B1 publication Critical patent/ES2100120B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Discontinuous ion exchange process for the purification of crude polyether polyols. A process for the purification of crude polyether polyols accompanied by alkaline hydroxides used as catalysts in their manufacture, which comprises the following successive stages: a) Mixing the crude polyether polyol with a molecular weight of 1000-10,000 with water or an aqueous solution of a low molecular weight aliphatic alcohol and a strongly acidic ion exchange resin b) Heating the mixture of a) to 80-120 degree C with vigorous stirring c) Separating the phases of b) and treating these by conventional techniques in order to obtain the purified polyether polyol.
ES09401514A 1994-07-12 1994-07-12 DISCONTINUOUS PROCEDURE OF ION EXCHANGE FOR THE PURIFICATION OF GROSS POLYOLET POLYOLS. Expired - Fee Related ES2100120B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES09401514A ES2100120B1 (en) 1994-07-12 1994-07-12 DISCONTINUOUS PROCEDURE OF ION EXCHANGE FOR THE PURIFICATION OF GROSS POLYOLET POLYOLS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09401514A ES2100120B1 (en) 1994-07-12 1994-07-12 DISCONTINUOUS PROCEDURE OF ION EXCHANGE FOR THE PURIFICATION OF GROSS POLYOLET POLYOLS.

Publications (2)

Publication Number Publication Date
ES2100120A1 true ES2100120A1 (en) 1997-06-01
ES2100120B1 ES2100120B1 (en) 1998-04-01

Family

ID=8286865

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09401514A Expired - Fee Related ES2100120B1 (en) 1994-07-12 1994-07-12 DISCONTINUOUS PROCEDURE OF ION EXCHANGE FOR THE PURIFICATION OF GROSS POLYOLET POLYOLS.

Country Status (1)

Country Link
ES (1) ES2100120B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135322A (en) * 1983-01-21 1984-08-30 Vyzk Ustav Petrochem A process for purifying at least partially water-soluble polyethers and/or copolymers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135322A (en) * 1983-01-21 1984-08-30 Vyzk Ustav Petrochem A process for purifying at least partially water-soluble polyethers and/or copolymers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE LUCAS A. et al.: " Eliminación de metales alcalinos en polioles mediante intercambio iónico". Rev. R. Acad. Cienc. Exactas, Fis. y Nat. Madrid 1991. 85 (4), Pág. 619-25 * Todo el documento * *

Also Published As

Publication number Publication date
ES2100120B1 (en) 1998-04-01

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