Abstract: Compounds of the general formulae I and II ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent H--(CH.sub.2).sub.a --(O--(CH.sub.2).sub.b).sub.c --O, where a=0 to 4, b=1 to 4 and c=1 to 7, an alkoxy or arylalkoxy group with 1 to 20 carbon atoms, an alkane- or aralkanesulfonyloxy group with 1 to 7 carbon atoms or a tetrahydropyranyloxy radical, orR.sup.1 and R.sup.2 together represent an oxygen atom bonded in an ether-like manner or an acetal or ketal radical ##STR2## where R.sup.3 and R.sup.4 independently of one another represent a hydrogen atom, an alkyl group with 1 to 20 carbon atoms of a phenyl group,A.sup.1 and A.sup.2 are identical and represent a hydroxyl group, chloride, bromide, iodide, nitrate, acetate, trifluoroacetate, trifluorosulfonate or perchlorate, orA.sup.1 represents sulfate or carbonate ion and A.sup.2 represents H.sub.2 O, orA.sup.1 A.sup.

Abstract: There are disclosed antitumor active 1,2-diphenyl-ethylenediamine)-platinum(II)-complex of the general formula ##STR1## wherein R.sub.7 is hydrogen or C.sub.1 -C.sub.6 -alkyl and R.sub.2 is either (1) a halogen atom and the groups R.sub.1, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are the same or different and are hydrogen, halogen, trihalomethyl, C.sub.1 -C.sub.6 -alkyl, hydrogen C.sub.1 -C.sub.6 -alkoxy, a C.sub.2 -C.sub.6 -alkanoyloxy or a halo or C.sub.1 -C.sub.4 -alkanesulfonyloxy substituted C.sub.2 -C.sub.6 -alkanoyloxy group, or R.sub.2 is (2) a hydroxy group, a C.sub.1 -C.sub.6 -alkoxy group, a C.sub.2 -C.sub.6 -alkanoyloxy group in the 4-position or a halo or C.sub.1 -C.sub.4 -alkanesulfonyloxy substituted C.sub.2 -C.sub.6 -alkanoyloxy group and if R.sub.2 is (2) then the groups R.sub.1 and R.sub.3 which are the same or differnt are in the 2 and 6 positions of the phenyl group and are halogen, trihalomethyl, C.sub.1 -C.sub.6 -alkyl, hydroxy, a C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.

Abstract: Complexes of iron(II), iron(III), manganese(II), manganese(III), gadolinium(III) or chromium(III) and a compound of the formula: ##STR1## wherein m=2, 3, 4, or 5, are useful for enhancing magnetic resonance images of body organs and tissues, such as magnetic resonance images of the hepatobiliary system. An illustrative complex of this type is monosodium [ethylenediamine-di(o-hydroxyphenylaceto)]iron(III) hydrate.

Abstract: Metal salts of alkyl catechol esters of dithiophosphoric acid suitable as additives in oil compositions are disclosed. Oil compositions containing the salts of such esters show improved extreme pressure/anti-wear and anti-oxidant properties.

Abstract: A particulate catalyst composition suitable for purification of terephthalic acid under reducing conditions and a method of preparation of such catalyst are disclosed. The catalyst composition includes catalytically active rhodium on a porous, granular, carbonaceous support material having a surface area of at least about 600 m.sup.2 /gram. Rhodium is present in an amount of about 0.01 to about 2 weight percent, based on the total weight of dry catalyst composition and calculated as elemental metal. In the presence of hydrogen, this catalyst exhibits a reduced terephthalic acid decomposition rate that is comparable to that for a palladium-on-carbon catalyst having the same catalyst metal loading. The catalyst is prepared by contacting a carbonaceous support material having a surface area of at least 600 m.sup.2 /gm and a pH value in its aqueous suspension of 9-11 with an aqueous rhodium salt solution having a pH of 1-4.

Abstract: Low energy start-up procedure for ammonia plants which employs ammonia as the start-up media, thereby avoiding the BTU loss associated with venting unconverted hydrocarbons and the threat to catalyst beds associated with rapid buildup of temperatures therein.

Abstract: The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing impurities. The hydrocarbon feedstock is contacted with hydrogen and a hydrotreating catalyst under hydrotreating conditions whereby a portion of the nitrogen- and sulfur-containing compounds are converted to hydrogen sulfide and ammonia. A portion of the hydrotreater effluent is then passed to a dewaxing zone and contacted with hydrogen under dewaxing conditions in the presence of a dewaxing catalyst containing a borosilicate molecular sieve on silica-alumina-containing matrix.

Abstract: A process for producing hydrocarbons which comprises bringing a gas mixture comprising hydrogen and carbon monoxide into contact with a catalyst comprising manganese oxide, alkali metal, sulfur, and ruthenium to produce hydrocarbons. The hydrocarbons formed are rich in olefins. When a catalyst prepared by combining the above described catalyst with crystalline zeolite is used, the hydrocarbons formed becomes rich in liquid hydrocarbons, particularly, a gasoline fraction.

Abstract: The present invention provides a process for reducing the pour point of a crude oil by adding a pour-point depressant selected from the group consisting of raw bitumen and hydrotreated bitumen to form a blend possessing a relatively lower pour point.

Abstract: An improved, low cost, energy efficient extrusion device and method for processing of cellulose, hemicellulose, and like fiber-bearing materials is described which includes a pretreatment extrusion zone and a reaction extrusion zone separated by a pressure sensitive variable die. The method hereof includes the steps of extruding cellulosic material through the pretreatment zone at an elevated pressure and temperature, passing the material into the reaction zone where it is mixed with an acid and is processed at a lower pressure and temperature than in the pretreatment zone, and extruding the material through a final extrusion die. The surging and blowing usually experienced with extrusion of fibrous material is drastically reduced by the unique construction of the extruder die members. The cellulosic material may be hydrolyzed to simple sugars in accordance with the method and apparatus hereof with a minimum of acid degradation of the extrusion equipment.

Abstract: Solvent dewaxing of waxy hydrocarbon oils is improved by using a poly (n-C.sub.24) alkyl methacrylate polymer dewaxing aid in combination with lower melting point weight poly (C.sub.8 -C.sub.20) alkyl methacrylate polymer dewaxing aids. The solvent dewaxing processes improved using this combination dewaxing aid are the incremental and total predilution solvent type processes employing either surface chilled indirect heat exchanger means or direct chilling using cold solvent.The solvent dewaxing processes are those employing normally liquid dewaxing solvents, as exemplified by C.sub.3 -C.sub.6 ketones, such as methyl ethyl ketone, methyl isobutyl ketone and mixtures thereof, mixtures of ketones with aromatic such as MEK/toluene, halogenated C.sub.2 -C.sub.4 hydrocarbons such as tetrachloraethane, trichloro ethylene, etc.

Abstract: The filtration performance of a slurry containing crystallized wax, dewaxed oil and dewaxing solvent is improved by use of an agitator means which possesses a characteristic dimension which when divided by the average wax crystal diameter yields a dimensionless number of about 1,500 or less, preferably about 1,000 or less, more preferably about 500 or less, most preferably about 250 or less. Use of an agitator means which possesses a characteristic dimension yielding a dimensionless number in the range recited above causes a reduction in the size of the vortex generated as the agitator means passes through the slurry during chilling. As a consequence, more intimate contacting of the wax particles during chilling is promoted.The needed characteristic dimension of the agitator may be obtained in any number of equally acceptable ways. Single large agitator blades can be replaced by more numerous smaller blades; large blades can be perforated, notched, etc.

Abstract: Hydrocarbon conversion processes including hydrocracking and hydrotreating are performed utilizing a novel phosphorus-modified alumina composite comprising a hydrogel having a molar ratio on an elemental basis of phosphorus to aluminum of from 1:1 to 1:100 together with a surface area of about 140 to 450 m.sup.2 /gm. The composite is prepared by admixing an alumina hydrosol with a phosphorus-containing compound to form a phosphorus-modified sol and gelling said admixture.

Abstract: Waste containing sulfur and nickel sulfide is heated to volatilize sulfur and reacted with hydrogen chloride to form nickel chloride.

Abstract: Useful compositions are prepared by incorporating into organic materials, crystalline lithium aluminates which conform substantially to the empirical formula(LiA.sub.x).sub.y.2Al(OH).sub.3.nH.sub.2 Owhere A represents one or more anions and/or negative-valence radicals,where x represents a quantity of A ions and/or radicals sufficient to substantially satisfy the valence requirements of the Li,where y is a numerical value sufficient to maintain the crystalline structure,and where n represents the number of waters of hydration, if any.

Abstract: Cut point is controlled in a distillation process by monitoring the partial pressure in a stripper.

Abstract: Tertiary phosphine oxides, phosphine sulfides and/or phosphine dihalides are reduced to tertiary phosphines by reaction with a hydrocarbon in the presence of carbon at elevated temperatures.

Abstract: A treated decomposable compound of molybdenum, which has been prepared by the catalytic dehydrogenation of a decomposable compound of molybdenum wherein the molybdenum has a valence state greater than zero or by the treating of the decomposable compound of molybdenum with a reducing agent, is mixed with a hydrocarbon-containing feed stream. The hydrocarbon-containing feed stream containing such treated decomposable compound of molybdenum is then contacted with a catalyst composition comprising a support selected from the group consisting of alumina, silica and silica alumina and a promoter comprising at least one metal selected from the group consisting of Group VIB, Group VIIB, and Group VIII of the Periodic Table to reduce the concentration of metals, sulfur, nitrogen, Ramsbottom carbon residue and/or heavies contained in the hydrocarbon-containing feed stream.

Abstract: Agglomerates of spheroidal masses of malachite crystals are prepared so that they contain silicic acid. These agglomerates can be used to prepare a copper-acetylide complex, which in turn can be used as a catalyst for the preparation of 1,4-butynediol from acetylene and formaldehyde.

Abstract: An organopolysulfide-impregnated catalyst composition usable to hydrotreat petroleum and other hydrocarbon feedstock is described. Also disclosed are processes for making and using the composition.