Catalyst for preparation of linear polyethylenepolyamines

• US 4,524,143 A
• Filed: 01/03/1983
• Issued: 06/18/1985
• Est. Priority Date: 01/03/1983
• Status: Expired due to Term

• Current Assignee: Texaco Incorporated (Chevron Corp.)
• Original Assignee: Texaco Incorporated (Chevron Corp.)
• Inventors: Vanderpool, Steven H.
• Primary Examiner(s): Wright, William G.
• Application Number:
  US06/455,154
• Time in Patent Office: 897 Days
• Field of Search: 502/208, 502/214
• US Class Current: 502/208
• CPC Class Codes: B01J 27/16 containing oxygen , i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
• CPC Class Codes: C07C 209/16 with formation of amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings

Abstract

This invention is directed to thermally activated pelletted catalyst compositions comprising zirconium silicate having phosphorous deposited thereon and their use in the production of predominantly linear polyethylenepolyamines from ethylenediamine and monoethanolamine.

Claims

1. As a new composition of matter, a thermally activated pelleted composition consisting essentially of zirconium silicate having from about 0.5 wt. % to about 10 wt. % of phosphorous thermally chemically bonded thereto.

2. A composition as in claim 1, wherein the source of the phosphorous is phosphoric acid.

3. A method of preparing a catalyst composition which comprises impregnating pellets of zirconium silicate with a liquid phosphorous compound and heating the impregnated pellets at a temperature of about 100°

to about 150°

C. for a period of time ranging from about 0.5 to about 5 hours sufficient to thermally chemically bond 0.5 wt. % to about 10 wt. % of phosphorous to the zirconium silicate, thereafter recovering the thus treated pellets, next water washing the thus-treated pellets to remove chemically uncombined phosphorous and then drying the pellets.

4. A method as in claim 3, wherein the source of phosphorous is phosphoric acid.

5. As a new composition of matter, a thermally activated pelleted composition consisting essentially of zirconium silicate having from about 0.5 wt. % to about 10 wt. % of phosphorous thermally chemically bonded thereto, said catalyst composition having been prepared by:

impregnating pellets of zirconium silicate with a liquid phosphorous compound and heating the impregnated pellets at a temperature of about 100°

to about 150°

C. for a period of time ranging from about 0.5 to about 5 hours sufficient to thermally chemically bond 0.5 wt. % to about 10 wt. % of phosphorous to the zirconium silicate, thereafter recovering the thus-treated pellets, next water washing the thus-treated pellets to remove chemically uncombined phosphorous and then drying the pellets.

6. A composition as in claim 5, wherein the said dried pellets are also calcined at a temperature of about 200°

to about 800°

C. for a period of time within the range of about 2 to 24 hours.

7. A composition as in claim 6, wherein the source of the phosphorous is phosphoric acid.

8. A method of preparing a catalyst composition which comprises impregnating pellets of zirconium silicate with a liquid phosphorous compound and heating the impregnated pellets at a temperature of about 100°

to about 150°

C. for a period of time ranging from about 0.5 to about 5 hours sufficient to thermally chemically bond 0.5 wt. % to about 10 wt. % of phosphorous to the zirconium silicate, recovering the thus-treated pellets, water washing the thus-treated pellets to remove chemically uncombined phosphorous, drying the pellets, and then calcining said dried pellets at a temperature of about 200°

to about 800°

C. for a period of time within the range of 2 to 24 hours.

9. A method as in claim 8, wherein the source of the phosphorous is phosphoric acid.