Animal feed supplement having reduced corrosion characteristics

• US 4,451,486 A
• Filed: 09/27/1982
• Issued: 05/29/1984
• Est. Priority Date: 09/04/1979
• Status: Expired due to Term

• Current Assignee: Novus International, Inc. (Nippon Soda Company Limited)
• Original Assignee: Monsanto Company (Bayer AG)
• Inventors: Weinkauff, David J., Baker, Joseph W., Mansfield, Dennis L.
• Primary Examiner(s): Waddell, Frederick E.
• Application Number:
  US06/466,750
• Time in Patent Office: 610 Days
• Field of Search: 424/317
• US Class Current: 514/557
• CPC Class Codes: A23K 20/105 Aliphatic or alicyclic compounds

Abstract

An improved animal feed supplement having reduced corrosion characteristics is obtained by forming an aqueous solution containing 87-90 percent by weight 2-hydroxy-4-(methylthio)-butanoic acid and partially neutralizing the solution to a pH of 0.9-1.2.

Claims

1. An animal feed supplement having reduced metal corrosion characteristics comprising an aqueous solution containing 87-90 percent by weight 2-hydroxy-4-(methylthio)-butanoic acid prepared by hydrolyzing MHA-nitrile in aqueous mineral acid, said solution having been neutralized such that said supplement contains essentially no free mineral acid.

2. Supplement of claim 1 wherein said mineral acid is hydrochloric acid.

3. Supplement of claim 2 wherein the solution contained, prior to being neutralized, from about 0.3 to about 0.5% of said mineral acid.

4. Supplement of claim 1 wherein said mineral acid is sulfuric acid.

5. Supplement of claim 1, said solution having been neutralized with ammonia or ammonia hydroxide.

6. Supplement of claim 1 wherein the 2-hydroxy-4-(methylthio)-butanoic acid is not neutralized.