Claims
- 1. A process for preparing noncyclic polyalkylene polyamines comprising the steps of:
- contacting an alkyleneamine compound having two primary amino groups of the formula: ##STR4## wherein R is a hydrogen or a lower alkyl, x is a number from 2 to about 6 and y is a number from 1 to about 4 with a diol having primary or secondary hydroxy groups of the general formula: ##STR5## where R is a hydrogen or a lower alkyl; x is a number from 2 to about 6; and y is a number from 0 to about 3 in the presence of a catalytically effective amount of the phosphoruscontaining substance selected from the group consisting of acidic metal phosphates, phosphoric acid compounds and their anhydrides, phosphorous acid compounds and their anhydrides, alkyl or aryl phosphate esters, alkyl or aryl phosphite esters, alkyl or aryl substituted phosphorous acids and phosphoric acids wherein said alkyl groups have from 1 to about 8 carbon atoms and said aryl groups have from 6 to about 20 carbon atoms, alkali metal monosalts of phosphoric acid and mixtures of the above at temperatures of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase wherein said alkyleneamine compound is present in molar excess; and,
- recovering said polyalkylene polyamine compound from the resultant reaction mixture.
- 2. The process of claim 1, wherein said phosphorus-containing substance is present in an amount of from about 0.1 to about 10.0 weight percent based upon the amount of said diol present.
- 3. The process of claim 2, wherein said mixture is heated in the presence of said phosphorus-containing substance at a temperature of from about 275.degree. to about 325.degree. C.
- 4. The process of claim 3, wherein said diol compound and said alkyleneamine compound are contacted in a molar ratio of from about 2:1 to about 1:5.
- 5. The process of claim 4 wherein said diol is an ethylene diol of the formula: ##STR6## wherein R is hydrogen, x is 2 and y is 0 to 3 and wherein the alkyleneamine is an ethyleneamine of the formula: ##STR7## wherein R is hydrogen, x is 2 and y is a number from 1 to about 4.
- 6. The process of claim 5 wherein said ethylene diol is monoethylene diol, wherein said ethyleneamine is ethylenediamine and wherein said phosphorus-containing substance is phosphorous acid.
- 7. The process of claim 5 wherein said phosphorus-containing substance is an acid metal phosphate selected from the group consisting of boron phosphate, ferric phosphate and aluminum phosphate.
- 8. The process of claim 5 wherein sid phosphorus compound is selected from a group consisting of phenylphosphinic acid, ethylphosphinic acid, phenylphosphonic acid, naphthaphosphonic acid, methylphosphinic acid, methyl phenylphosphinate, dimethyl phenylphosphonate, ethyl phenylphosphinate and propyl methylphosphonate.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 583,018 filed June 2, 1975, now abandoned.
US Referenced Citations (3)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
583018 |
Jun 1975 |
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