METHOD FOR PRODUCING ZINC DICARBOXYLATE

• US 20140200328A1
• Filed: 08/31/2012
• Published: 07/17/2014
• Est. Priority Date: 09/09/2011
• Status: Abandoned Application

• Current Assignee: BASF SE
• Original Assignee: BASF SE
• Inventors: Brym, Anna Katharina, Luinstra, Gerrit, Zubiller, Jrgen, Korashvili, Revaz
• Application Number:
  US14/343,604
• Publication Number:
  US 20140200328A1
• Time in Patent Office: Days
• US Class Current: 528/405
• CPC Class Codes: C07C 51/412 by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
• CPC Class Codes: C07C 55/10 Succinic acid
• CPC Class Codes: C07C 55/12 Glutaric acid
• CPC Class Codes: C07C 55/14 Adipic acid
• CPC Class Codes: C07C 55/16 Pimelic acid
• CPC Class Codes: C07C 55/18 Azelaic acid
• CPC Class Codes: C07F 3/06 Zinc compounds
• CPC Class Codes: C08G 64/34 and cyclic ethers

Abstract

The invention relates to a process for preparing a zinc dicarboxylate from a zinc compound and a C₄-C₁₀ dicarboxylic acid in the presence of a cationic emulsifier and a solvent.

The invention also relates to zinc dicarboxylates obtainable by the abovementioned process and having a BET surface area of 50 to 750 m²/g.

Claims

1-13. -13. (canceled)

14. A process for preparing a zinc dicarboxylate from a zinc compound and a C₄-C₁₀ dicarboxylic acid in the presence of a primary C₁₀-C₃₀ alkylamine and a solvent.

15. The process according to claim 14, wherein the alkylamine is n-hexadecylamine.

16. The process according to claim 14, wherein glutaric is used as the C₄-C₁₀ dicarboxylic acid.

17. The process according to claim 14, wherein the solvent is an alcohol.

18. The process according to claim 14, wherein the alkylamine is used in a molar ratio of 4:

1 to 1;

1, based on the zinc compound.

19. The process according to claim 14, wherein the zinc dicarboxylate formed is dried at 130 to 170°

C.

20. A process for preparing polyalkylene carbonates by polymerizing carbon dioxide with at least one epoxide selected from ethylene oxide, propylene oxide, butene oxide, cyclopentene oxide, and cyclohexene oxide, in the presence of the zinc dicarboxylate obtained by the process according to claim 14.

21. The process according to claim 20, wherein the polyalkylene carbonate is a propylene carbonate.