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US 12,304,878 B2Granted
Iron salt catalyst regeneration
OwnerRandolph Belterinventor
Life of this patent
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Abstract
Chemical processes are disclosed that react iron tetracarbonyl dichloride with an alkyl phosphate producing carbon monoxide and a compound represented by the formula FeCl2—(O═P(OR)3)n where n is an integer. Simultaneously or subsequently an alkene with carbon tetrachloride may be reacted in the presence of the compound represented by the formula FeCl2—(O═P(OR)3)n where n is an integer to produce a chlorinated hydrocarbon.
Claims18
A chemical process comprising:
- a. a first reaction in which a halogenated carbonyl of iron is a reactant;
- b. a second reaction in which a reactant of the general formula Y—CCl3 reacts with an alkene in a reactor thereby producing a halogenated hydrocarbon;
- c. wherein the second reaction occurs at a time selected from during the first reaction and after the first reaction;
- d. wherein carbon monoxide is a product of the first reaction;
- e. wherein the reactant of the general formula Y—CCl3 is added to the reactor during the second reaction;
- f. wherein Y is selected from hydrogen, halogen, alkyl group, nitrile, and carboxylate;
- and
- g. wherein a compound selected from an Fe(II) complex and an Fe(III) complex is removed from the reactor, subjected to separation, and returned to the reactor.
5 more elements
A chemical process comprising:
- a. subjecting a carbonyl of iron to at least one chemical reaction thereby creating a Kharasch catalytic iron compound;
- b. supplying CCl4 to a reactor;
- c. supplying an alkene to the reactor;
- d. wherein a chemical reaction takes place in the presence of the Kharasch catalytic iron compound;
- e. wherein the chemical reaction that takes place in the presence of the Kharasch catalytic iron compound consumes both a portion of the CCl4 and a portion of the alkene;
- and
- f. wherein the chemical reaction that takes place in the presence of the Kharasch catalytic iron compound produces a chlorinated hydrocarbon.
4 more elements
A chemical process comprising:
- a. reacting iron tetracarbonyl dichloride with an alkyl phosphate thereby producing carbon monoxide and a compound represented by the formula FeCl2—(O═P(OR)3)n where n is an integer;
- and
- b. reacting an alkene with carbon tetrachloride in the presence of the compound represented by the formula FeCl2—(O═P(OR)3)n where n is an integer to produce a chlorinated hydrocarbon.
Dependencies are inferred from the claim text.