Abstract: An extruded, cross-cut snack food product and a method and apparatus for producing extruded, generally planar food products having ridges and valleys formed on opposite sides thereof, wherein the ridges and valleys on each side are parallel to each other, but are at an angle relative to the ridges and valleys on the opposite side. As a result, an extruded food product piece with unique texture, flavor and appearance is produced having substantial strength.

Abstract: A process is disclosed for producing methyl tert.-butyl ether wherein n-butane is isomerized to isobutane which is then catalytically dehydrogenated to form an isobutane/isobutene mixture, while natural gas is reformed to form synthesis gas containing CO and H.sub.2 which is in turn converted to methanol, the resulting methanol and isobutene in the isobutane/isobutene mixture being etherified to form methyl tert.-butyl ether. Isobutane is then separated from the resulting etherification mixture and is recycled to the dehydrogenation stage.

Abstract: There is disclosed a process for the combustion of H.sub.2 S containing gases with air and/or oxygen into elementary sulfur and separation of the sulfur from the reaction gas, in a load range from between 100 and 5%. The process takes place in a combustion zone equipped with burners, an adjoining reaction zone and several cooling zones, in which--possibly after previous reheating and further catalytic transformation into sulfur--the sulfur formed condenses and is then separated. The H.sub.2 S containing gases are supplied to the combustion zone by one or several main burners in the high load range and by a by-pass burner in a low load range. In the low load range, a heating gas is also burned by a separate burner and the cooling surfaces in the cooling zones which are coated by the reaction gas are reduced.

Abstract: A process for the production of a non-linear aldehyde by hydroformylation of an optionally substituted internal olefin comprises:providing a hydroformylation zone containing a charge of a liquid reaction medium having dissolved therein a complex rhodium hydroformylation catalyst comprising rhodium in complex combination with carbon monoxide and with a cyclic phosphite having a bridgehead phosphorus atom linked to three oxygen atoms at least two of which form together with the bridgehead phosphorus atom part of a ring;supplying said internal olefin to the hydroformylation zone;maintaining temperature and pressure conditions in the hydroformylation zone conducive to hydroformylation of the internal olefin;supplying make-up hydrogen and carbon monoxide to the hydroformylation zone; andrecovering from the liquid hydroformylation medium a hydroformylation product comprising at least one non-linear aldehyde.