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Manufacture of carboxylic acid amides

  • US 4,176,137 A
  • Filed: 11/13/1978
  • Issued: 11/27/1979
  • Est. Priority Date: 11/17/1977
  • Status: Expired due to Term
First Claim
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1. A process for the manufacture of carboxylic acid amides by addition reaction of water with nitriles in the presence of a copper-containing catalyst, wherein the reaction is carried out with a catalyst which contains copper and a magnesium silicate produced in the presence of a copper compound by precipitation of a magnesium compound with an alkali metal silicate, the catalyst being treated with a reducing gas at an elevated temperature, and wherein the magnesium silicate prepared as described above and separated from the precipitation medium is mixed with from 3 to 50 percent by weight, based on magnesium silicate, of a cement having a particle size of from 1 to 100 micrometers.

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