Title: Hydroxycarboxylic acids and salts

Abstract

Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.

Inventors:

Kiely, Donald E; Hash, Kirk R; Kramer-Presta, Kylie; Smith, Tyler N

Issue Date:

Tue Feb 24 00:00:00 EST 2015

Research Org.:

The University of Montana, Missoula, MT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1171105

Patent Number(s):

8961813

Application Number:

13/586,953

Assignee:

The University of Montana (Missoula, MT)

Patent Classifications (CPCs):

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2103/61 - Corrosion inhibitors
C04B24/06 - containing hydroxy groups

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C51/316 - {with oxides of nitrogen or nitrogen-containing mineral acids}
C07C51/412 - {by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part}
C07C59/105 - having five or more carbon atoms, e.g. aldonic acids

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07H - SUGARS

C07H3/02 - Monosaccharides
C07H3/04 - Disaccharides
C07H3/06 - Oligosaccharides, i.e. having three to five saccharide radicals attached to each other by glycosidic linkages

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08B - POLYSACCHARIDES

C08B37/00 - Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K3/185 - {Thawing materials}

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

C23F11/126 - {Aliphatic acids}

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Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Aug 16

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY