Fluorinated carboxylic acids patents

PROCESS FOR RECOVERY OF FLUORINATED CARBOXYLIC ACID SURFACTANTS FROM EXHAUST GAS

Filed: May 25th, 2006 [Pending]

Patent Application Number: 11420377

[0002] The present invention relates to a process for recovering fluorinated carboxylic acids or salts thereof from an exhaust gas stream.

METHOD OF REMOVING FLUORINATED CARBOXYLIC ACID FROM AQUEOUS LIQUID

Filed: May 25th, 2006 [Pending]

Patent Application Number: 11420416

[0077] The amount of adsorbent particles used to remove the fluorinated carboxylic acids for the aqueous liquid will generally depend on the nature of the ...

RECOVERY OF FLUORINATED CARBOXYLIC ACID FROM ADSORBENT PARTICLES

Filed: May 25th, 2006 [Pending]

Patent Application Number: 11420413

[0035] Fluorinated carboxylic acid of formula (VI) can be derived from ... [0037 ] Fluorinated carboxylic acids according to formula (VI) wherein n is 0 can ...

Covalently immobilized fluorinated carboxylic acid stationary phase for ...

Filed: August 6th, 2008 [Granted]

Assignee: The United States of America as represented by the Secretary of Commerce The National Institute of Standards and Technology

Patent Number: 7794837

These chromatographic sorbents may be synthesized 45 from fluorinated carboxylic acids that range in length (>C6) that are covalently bound to a ...

RECOVERY OF FLUORINATED CARBOXYLIC ACID FROM ADSORBENT PARTICLES

Filed: May 25th, 2006 [Pending]

Patent Application Number: 11420413

A process comprising recovery of fluorinated carboxy- lic acid or derivative thereof from adsorbent particles on which fluorinated carboxylic acid or a salt ...

Covalently immobilized fluorinated carboxylic acid stationary phase for ...

Filed: August 6th, 2008 [Granted]

Assignee: The United States of America as represented by the Secretary of Commerce The National Institute of Standards and Technology

Patent Number: 7794837

These chromatographic sorbents may be synthesized 45 from fluorinated carboxylic acids that range in length (>C6) that are covalently bound to a ...

Process for the recovery of fluorinated carboxylic acids

Filed: May 3rd, 1995 [Granted]

Assignee: Hoechst AG

Patent Number: 5591877

A process for preparing an ammonium salt of a fluorinated carboxylic acid emulsifier, which comprises hydro- lyzing an ester of the fluorinated carboxylic ...

Recovery of highly fluorinated carboxylic acids from the gas phase

Filed: March 7th, 1996 [Granted]

Assignee: Dyneon GmbH

Patent Number: 5990330

By analysis, it is established in which phase the salts of the highly fluorinated carboxylic acids are contained and the other phases are preferably ...