摘要:
Method of preparing methyl halides over mixtures of methyl halides with halogenated ethanes by reaction between carbon monoxide, hydrogen and a hydrogen halide in the presence of a metal carbonyl complex catalyst at a temperature below 200.degree. C.
摘要:
Method of preparing a hydrocarbon conversion and polymerization catalyst comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.
摘要:
Hydrocarbon conversion processes are disclosed using a catalyst prepared by a method comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.
摘要:
Polymer bound multidentate complexes are prepared by reacting pendant benzyl chloride and benzyl iodide groups on a variety of polymer supports, including crosslinked polystyrene, with 3,3'-iminodiproprionitrile and reducing the nitrile groups by treatment with, for example, a boron hydride-tetrahydrofuran complex to form the amine. The amine is a precursor for other ligand systems; for example, the primary amine groups formed condense with an aldehyde or ketone to yield five coordinate Schiff base ligands. The polydentate amine ligand systems are useful for synthesis of chelating agents for sequestering metal ions from solution for purification or concentration purposes. Metal complexes of these ligands with manganese, iron, cobalt, nickel, copper, and zinc can be prepared which are useful as heterogeneous oxidation catalysts.
摘要:
Normal aldehydes are produced in high selectivity by the vapor phase reaction of lower olefins with hydrogen and carbon monoxide in the presence of supported liquid phase catalysts at temperatures of 80.degree. C. to 100.degree. C. under pressures of 1 to 5 atmospheres.
摘要:
Catalysts for the preparation of alkyl halides produced by reacting (1) transition metal carbonyl complex capable of oxidatively adding H.sub.2 or HCl and (2) a Lewis acid from the group consisting of aluminum halides, antimony halides and mixtures thereof, with an adsorbent solid containing surface hydroxyl groups, in a solvent.
摘要:
A composition comprising a crystalline aluminosilicate zeolite having entrapped therein as an ion pair an anionic material having the formula ML.sub.n.sup.-n+m, wherein M is a metal, L is an anionic ligand, which coordinates more strongly to M than to the surface of said zeolite, n is the number of ligands bound to the metal ion and is an integer from 1 to 6, and m is the oxidation state of the metal.
摘要:
Novel heterogeneous catalysts consist essentially of an anion exchange resin to which is bound ionically an anionic metal carbonyl species having the general formula M.sub.n (CO).sub.m (X).sub.p.sup.z- where M is a transition metal such as for example rhodium, cobalt, ruthenium, osmium, iridium, or iron; X is an anion, for example halide, hydride, or alkyl; n ranges from 1 to 12; m ranges from 1 to 34; p ranges from 0 to 2n+1; and z is an integer charge ranging from 1 to 5. The catalyst in which M is rhodium, m=2, p=2, n=1,and z=1 is highly effective for the carbonylation of alcohols to acids and esters. Many of these anionic species have utility in the hydroformylation of olefins.
摘要:
A method for oxidizing hydrocarbon compounds comprising passing a mixture of the hydrocarbon compound and excess oxygen over a catalyst comprising a carbonaceous substrate doped with a compound selected from the group consisting of metal oxide, metal oxyhalide, and precursors which form metal oxide and metal oxyhalide, and blends thereof under mild reaction conditions. The temperature of the reaction is below about 300.degree. C.