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US 12,091,376 B2Granted
Iron salt catalyst regeneration
OwnerRandolph Belterinventor
Life of this patent
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Abstract
Chemical processes are disclosed that act to both regenerate and create new catalyst for iron salt catalyzed Kharasch coupling reactions during the process of creating halogenated hydrocarbons. Such processes include loading a reactor with a quantity of Fe(0) metal such as iron wire, supplying CCl4 to the reactor, supplying a phosphate compound to the reactor, supplying an alkene to the reactor, and supplying a carbonyl of Fe(0) to the reactor.
Claims14
A chemical process comprising:
- a. reacting a reagent of the general formula Y—CCl3 with an alkene in a reactor thereby producing a halogenated hydrocarbon;
- b. wherein iron pentacarbonyl is present during the reacting of the reagent of the general formula Y—CCl3 with an alkene;
- c. wherein a compound selected from FeCl3 and a FeCl3 complex is removed from the reactor, subjected to separation, and returned to the reactor;
- d. wherein the reagent of the general formula Y—CCl3 is added to the reactor during the reacting of the reagent of the general formula Y—CCl3 with the alkene;
- e. wherein the iron pentacarbonyl is added to the reactor during the reacting of the reagent of the general formula Y—CCl3 with the alkene;
- f. wherein Y is selected from hydrogen, halogen, alkyl group, nitrile, and carboxylate;
- and
- g. wherein a majority of iron pentacarbonyl added to the reactor reacts according to the equation
- Fe(CO)5+2FeCl3→3FeCl2+5CO.
6 more elements
A chemical process comprising:
- a. loading a reactor with a quantity of Fe(0) metal;
- b. supplying CCl4 to the reactor;
- c. supplying a phosphate compound to the reactor;
- d. supplying an alkene to the reactor;
- e. supplying a carbonyl of Fe(0) to the reactor;
- f. reacting a portion of the Fe(0) metal to a quantity to FeCl3;
- g. reacting most of the carbonyl of Fe(0) supplied to the reactor with a portion of the quantity to FeCl3 producing CO and FeCl2;
- h. wherein a chemical reaction in the reactor produces a halogenated hydrocarbon.
5 more elements
A chemical process comprising:
- a. conducting an iron salt catalyzed Kharasch coupling reaction;
- b. wherein the iron salt catalyzed Kharasch coupling reaction occurs in the presence of iron pentacarbonyl;
- c. wherein iron atoms from the iron pentacarbonyl are oxidized during the iron salt catalyzed Kharasch coupling reaction;
- d. wherein iron atoms from a compound selected from FeCl3 and an FeCl3 complex are reduced during the iron salt catalyzed Kharasch coupling reaction;
- and
- e. wherein the iron salt catalyzed Kharasch coupling reaction occurs in the presence of a native consumable Fe(0) metal.
3 more elements
Dependencies are inferred from the claim text.