Eastman Chemical Company

Michael Richard Laningham

Scott Donald Barnicki

Robert Thomas Hembre

Sumit Chakraborty

Venkateswarlu Bhamidi

Shane Kipley Kirk

Elaine Beatrice Mackenzie

Larry Wayne Blair

Joy Lynn Laningham

Guoxiong Hua

John Derek Woollins

Steven J Adams

Vickie Haygood Osborne

Randy Lynn Jennings

Stijn Van De Vyver

Gerarld Wayne Ollis

The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.

Method for the manufacture of cyclododecasulfur

Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.

Process for making formic acid utilizing higher-boiling formate esters

A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (&#x3e;99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.

Iron-catalyzed cross-coupling of methanol with secondary or tertiary alcohols to produce formate esters

The present invention relates to a method for the manufacture of polymeric sulfur. The method includes reacting a metallasulfur derivative with an oxidizing agent to form polymeric sulfur.

Method for the manufacture of polymeric sulfur

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Erwin, TN, United States of America

Michael Richard Laningham