# US 4,394,525 A · Process for hydrogenating aldehydes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,394,525 A - Document ID: US4394525A - Status: Granted - Kind: A - Application number: 06/278,821 - Filed: 1981-06-29 - Granted: 1983-07-19 - Earliest claimed: 1981-06-29 - Assignees: Gulf Research & Development Company - Inventors: Roger F. Vogel; George Marcelin; Harold E. Swift - Web page: https://patentgrep.com/patent/US4394525A ## CPC - C07C 45/62: by hydrogenation of carbon-to-carbon double or triple bonds - B01J 27/1853: {with iron, cobalt or nickel} - C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS ## Abstract A process for hydrogenating an unsaturated organic compound which comprises contacting the same with hydrogen in the presence of a catalyst composed of a support containing (1) at least one Group IIA metal compound selected from the group consisting of magnesium, calcium, strontium and barium compounds, (2) alumina and (3) aluminum phosphate carrying nickel thereon. ## Claims ### Claim 1 A process for hydrogenating an aliphatic aldehyde having from two to 20 carbon atoms which comprises contacting the same with hydrogen in the presence of a catalyst composed of about three to about 60 weight percent nickel mounted on an amorphous support containing (1) at least one Group IIA metal compound selected from the group consisting of magnesium, calcium, strontium and barium compounds, (2) alumina and (3) aluminum phosphate, such support having an average pore radius of from about 10 A to about 300 A, a surface area ranging from about 80 m.sup.2 /g to about 350 m.sup.2 /g and a pore volume of from about 0.33 cc/g to about 1.5 cc/g, said Group IIA metal compound being present in an amount ranging from about two to about 35 mole percent, alumina in an amount ranging from about 15 to about 60 mole percent and aluminum phosphate in an amount ranging from about 25 to about 80 mole percent wherein said unsaturated organic compound is passed over said catalyst at a liquid hourly space velocity of about 1.0 to about 12 while maintaining in the reaction zone a temperature of about 30.degree. to about 200.degree. C. and a hydrogen partial pressure of about 0 to about 500 pounds per square inch gauge. ### Claim 2 (depends on 1) The process of claim 1 wherein said support has an average pore radius of from about 50 A to about 200 A, a surface area of about 125 m.sup.2 /g to about 250 m.sup.2 /g and a pore volume of from about 0.5 cc/g to about 1.2 cc/g. ### Claim 3 (depends on 1) The process of claim 1 wherein said Group IIA metal compound is a Group IIA metal oxide. ### Claim 4 (depends on 2) The process of claim 2 wherein said Group IIA metal compound is a Group IIA metal oxide. ### Claim 5 (depends on 1) The process of claim 1 wherein said Group IIA metal compound is magnesia. ### Claim 6 (depends on 2) The process of claim 2 wherein said Group IIA metal compound is magnesia. ### Claim 7 (depends on 1) The process of claim 1 wherein said Group IIA metal compound is calcium oxide. ### Claim 8 (depends on 2) The process of claim 2 wherein said Group IIA metal compound is calcium oxide. ### Claim 9 (depends on 1) The process of claim 1 wherein said Group IIA metal compound is strontium oxide. ### Claim 10 (depends on 2) The process of claim 2 wherein said Group IIA metal oxide is strontium oxide. ### Claim 11 (depends on 1) The process of claim 1 wherein said Group IIA metal oxide is barium oxide. ### Claim 12 (depends on 2) The process of claim 2 wherein said Group IIA metal oxide is barium oxide. ### Claim 13 (depends on 1) The process of claim 1 wherein said Group IIA metal component includes magnesia and calcium oxide. ### Claim 14 (depends on 2) The process of claim 2 wherein said Group IIA metal component includes magnesia and calcium oxide. ### Claim 15 (depends on 1) The process of claim 1 wherein said Group IIA metal component includes strontium and barium oxides. ### Claim 16 (depends on 2) The process of claim 2 wherein said Group IIA metal component includes strontium and barium oxides. ### Claim 17 (depends on 2) The process of claim 2 wherein the amount of nickel carried on said support is in the range of about five to about 25 weight percent. ### Claim 18 (depends on 2) The process of claim 2 wherein said aldehyde is passed over said catalyst at a liquid hourly space velocity of about 1 to about 12, while maintaining in the reaction zone a temperature of about 50.degree. to about 200.degree. C. and a hydrogen partial pressure of about 100 to about 500 pounds per square inch gauge. ### Claim 19 (depends on 2) The process of claim 2 wherein said aldehyde is an aliphatic compound having from two to 12 carbon atoms. ### Claim 20 (depends on 1) The process of claim 1 wherein said aldehyde is an unsaturated aldehyde. ### Claim 21 (depends on 2) The process of claim 2 wherein said aldehyde is an unsaturated aldehyde. ### Claim 22 (depends on 1) The process of claim 1 wherein said aldehyde is 2-ethyl-2-hexenal. ### Claim 23 (depends on 2) The process of claim 2 wherein said aldehyde is 2-ethyl-2-hexenal.