Production of saturated halohydrocarbons
AssigneeE. I. Du Pont de Nemours and Company
InventorDouglas R. Anton
Life of this patent
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Abstract
A process is disclosed for producing saturated halohydrocarbons containing fluorine which comprises the step of reacting certain saturated or olefinic compounds at an elevated temperature with hydrogen in the presence of at least one material selected from the group consisting of iodine and hydrogen iodide, or with hydrogen iodide. Also disclosed s a process for producing certain chloromethanes which comprises the step of reacting CCl.sub.4 at an elevated temperature with hydrogen in the presence of iodine and/or HI, or with hydrogen iodide; and a process for producing CF.sub.3 CCl.dbd.CHCF.sub.3 which comprises the step of reacting CF.sub.3 CCl.dbd.CClCF.sub.3 at an elevated temperature with hydrogen in the presence of iodine and/or HI, or with hydrogen iodide.
Claims20
A process for producing saturated halohydrocarbons containing fluorine comprising the step of:
- reacting a saturated compound of the formula
- C.sub.n H.sub.m F.sub.p X.sub.q
- wherein each X is independently selected from Cl and Br, n is an integer from 1 to 8, m is an integer from 0 to 16, p is an integer from 1 to 17 and q is an integer from 2 to 17, and wherein m+p+q equals 2n+2 when the compound is acylic and equals 2n when the compound is cyclic, at a temperature from about 100.degree. C. to 500.degree. C. (i) with hydrogen in the presence of at least one material selected from the group consisting of iodine and hydrogen iodide or (ii) with hydrogen iodide, to produce a saturated product containing fluorine and hydrogen wherein at least one X has been removed.
A process for producing saturated halohydrocarbons containing fluorine comprising the step of:
- reacting an acyclic olefinic compound of the formula
- C.sub.n H.sub.m F.sub.p X.sub.q
- wherein each X is independently selected from Cl and Br, n is an integer form 1 to 8, m is an integer from 0 to 15, p is an integer from 1 to 16 and q is an integer from 0 to 15, and wherein m+p+q equals 2n, at a temperature from about 100.degree. C. to 500.degree. C. (i) with hydrogen in the presence of at least one material selected from the group consisting of iodine and hydrogen iodide or (ii) with hydrogen iodide, to produce a saturated product containing fluorine and hydrogen.
A process for producing saturated halohydrocarbons containing fluorine comprising the step of:
- reacting an olefinic compound of the formula
- C.sub.n H.sub.m F.sub.p X.sub.q
- wherein each X is independently selected from Cl and Br, n is an integer from 1 to 8, m is an integer from 0 to 14, p is an integer from 1 to 15 and q is an integer from 1 to 15, and wherein m+p+q equals 2n when the compound is acrylic and equals 2n-2 when the compound is cyclic, at a temperature from about 100.degree. C. to 500.degree. C. (i) with hydrogen in the presence of at least one material selected from the group consisting of iodine and hydrogen iodide or (ii) with hydrogen iodide, to produce a saturated product containing fluorine and hydrogen.
Dependencies are inferred from the claim text.