A method for the oxidative conversion of a feed material comprising methane, such as natural gas, to higher hydrocarbons, particularly ethylene and ethane and desirably ethylene, in which feed is contacted with a solid contact material comprising cobalt; at least one metal selected from the group consisting of zirconium, zinc, niobium, indium, lead and bismuth, preferably, zirconium; phosphorous; at least one Group IA metal; and oxygen under oxidative conversion conditions sufficient to convert ...

An improved method for converting methane to higher hydrocarbon products by contacting a gas comprising methane and an oxidative synthesizing agent at synthesizing conditions, the improvement which comprises contacting methane with a solid comprising a promoting amount of alkali metal and/or compounds thereof, said solid being associated with a support selected from the group consisting of alkaline earth metals and compounds thereof. Magnesia is a particularly preferred support.

A process for the direct conversion of an aqueous solution of carbohydrates to hydrocarbons where a feed consisting essentially of an aqueous solution of carbohydrates is passed over a crystalline aluminosilicate zeolite catalyst having a constraint index of 1 to 12 and a silica/alumina molar ratio of about 12. An important feature of this invention is the short amount of time the aqueous carbohydrate solution is in contact with the catalyst.

A hydrocarbon conversion process wherein metal-coated or metal-contaminated cracking catalyst is regenerated, reduced and then used to hydrogenate an olefin.

Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising a silica support containing molybdenum oxide and a promoting amount of a least one titaniferous agent and activated under conditions suitable for the titaniferous agent to promote the activity of molybdenum oxide and silica for the disproportionation and isomerization reaction.

The present invention provides a biological system for expanding the dethiazolidine ring of penicillins into the dehydrothiazine ring of cephalosporins or cephalosporin precursors. In particular, the invention defines reaction conditions under which expandase enzyme can convert penicillin substrates other than penicillin N into cephalosporins. The invention therefore provides a relatively inexpensive, uncomplicated, and environmentally friendly biological system for cephalosporin production from...

Preparing an aldehyde from an alcohol by contacting the alcohol in the presence of oxygen with a catalyst prepared by contacting an intimate mixture containing metal oxide support particles and particles of a catalytically active metal oxide from Groups VA, VIA, or VIIA, with a gaseous stream containing an alcohol to cause metal oxide from the discrete catalytically active metal oxide particles to migrate to the metal oxide support particles and to form a monolayer of catalytically active metal ...

An A/D converter system includes a first A/D converter with calibration circuitry. Also included in the system is an auxiliary A/D converter having a lower performance level than the first A/D converter. Circuitry is provided for temporarily switching an A/D conversion from the first A/D converter to the auxiliary A/D converter during short time intervals used for calibration of the first A/D converter. The rate at which the A/D conversion is switched is lower than the sampling rate of the first...

A method for converting halocarbons, especially lower halocarbons like chloromethane, especially methyl chloride, to hydrocarbons, especially higher molecular weight hydrocarbons, wherein a reaction mixture including the halocarbons is contacted with a borosilicate-containing catalytic composition having a specified composition in terms of mole ratios of oxides and a specified X-ray diffraction pattern to form a product mixture of the desired hydrocarbon(s).

A mixture of organic compounds comprising a major amount of liquid hydrocarbons, mostly aromatic, is formed by the direct partial oxidation of methane in the presence of a ZSM-5 catalyst. The reaction conditions are substantially the same as those required for the direct homogeneous partial oxidation to methanol. However, liquid hydrocarbon formation depends on the presence of a small amount of an impurity such as propane or propylene in the feed; in the absence of such, only methanol is formed....