Claims
- 1. A process for preparing predominantly linear polyalkylene polyamines which comprises reacting ammonia or an alkyleneamine compound having two primary amino groups or mixtures thereof with an alcohol having primary or secondary hydroxyl groups or an alkanolamine compound having a primary or secondary amino group and a primary or secondary hydroxyl group or mixtures thereof in the presence of a derivative of carbonic acid as a catalyst sufficient to effect the reaction resulting in the formation of predominantly linear polyalkylene polyamines at a temperature at which the reaction will proceed under pressures sufficient to maintain the reaction mixture substantially in the liquid phase; and recovering the polyalkylene polyamines from the product mixture.
- 2. The process of claim 1 wherein the alkanolamine reactant is represented by the formula: ##STR4## wherein R and R' are the same or different and are hydrogen or a lower alkyl radical, x is an integer from 0 to about 6 and Z is OH or NH.sub.2.
- 3. The process of claim 1 wherein the alcohol reactants are monohydroxylic compounds having from 1 to about 6 carbon atoms or diols having 2 to 4 carbon atoms.
- 4. The process of claim 2 wherein the alkanolamine is monoethanolamine, diethanolamine or mixtures thereof.
- 5. The process of claim 3 wherein said alcohol is ethylene glycol.
- 6. The process of claim 1 wherein said alkyleneamine reactant are those represented by the formula: ##STR5## wherein R is hydrogen or a lower alkyl radical, x is a number from 2 to about 6, and y is a number from 1 to about 4.
- 7. The process of claim 1 wherein said alkyleneamine reactant is ethylenediamine.
- 8. The process of claim 1 wherein said derivative of carbonic acid is carbon dioxide or a compound formed by the addition of an amine or an alcohol to carbon dioxide which compound can enter into an exchange or metathesis process with an amine or alcohol reactant to form an equilibrium concentration of a urea, carbonate, or carbamate of the reactant molecule.
- 9. The process of claim 1 wherein at least about 0.02 mole of carbonic acid derivative is provided per mole of alkyleneamine or ammonia.
- 10. A process for preparing predominantly linear polyalkylene polyamines which comprises reacting ammonia or an alkyleneamine compound having two primary amino groups or mixtures thereof with an alcohol having primary or secondary hydroxyl groups or an alkanolamine compound having a primary or secondary amino group and a primary or secondary hydroxyl group or mixtures thereof in the presence of at least about 0.02 mole of a derivative of carbonic acid per mole of alkyleneamine or ammonia at a temperature at which the reaction will proceed under pressures sufficient to maintain the reaction mixture substantially in a liquid phase; and recovering the polyalkylene polyamines from the product mixture produced.
Parent Case Info
This application is a continuation of application Ser. No. 307,228, filed Sept. 30, 1981, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (1)
Entry |
Handbook of Chemistry and Physics, 63rd Edition (1982-1983), CRC Press, Inc., Boca Raton, Fl., p. F-171. |
Continuations (1)
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Number |
Date |
Country |
Parent |
307228 |
Sep 1981 |
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