Patent Number: 7,713,435

Title: Heat exchange fluids comprising amine carboxylates

Abstract: Carboxylate salts of amines are used as components of heat exchange fluids. The amines may have a ratio of N to C of 1:0 to 1:12 and the carboxylate anion may be derived from an acid of the formula H(CH.sub.2).sub.0-3COOH. A preferred monoamine heat exchange fluid utilizes triethanolamine formate. Lower carboxylate salts of diamines and triamines having the formula R.sub.2[N[(CH.sub.2).sub.mNR].sub.1-2]R where each R is independently selected from moieties of the formula --C.sub.nH.sub.2n+1 and moieties of the formula H[O(CH.sub.2).sub.1-4]--, each m is independently a number from 1 to 6, and each n is a number from 1 to 4, are disclosed as compounds.

Inventors: Smith; Kevin W. (McMurray, PA), Gatlin; Larry W. (Floresville, TX), Hallman; John H. (New Waverly, TX)

Assignee: Clearwater International, L.L.C.

International Classification: C09K 5/00 (20060101)

Expiration Date: 5/11/12018