Abstract: A new zeolite material designated Nu-3 having a molar composition expressed by the formula:0.5 to 1.5R.sub.2 O:Y.sub.2 O.sub.3 :at least 5XO.sub.2 :0 to 400H.sub.2 Owherein R is a monovalent cation or 1/n of a cation of valency n where n is a whole number of 2 or more, X is silicon and/or germanium, Y is one or more of aluminium, iron or gallium and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray diffraction pattern substantially as shown in Table 1, is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and an optionally substituted quinuclidinium ion.

Abstract: Synthetic faujasites in microcrystalline form are obtained by reacting alkali metal silicate in solution with alkali metal aluminate and effecting the crystallization of the reaction product in the presence of a mono- or disaccharide.

Abstract: In a process for the production of an aqueous alkaline suspension of low-grit, crystallized zeolitic sodium aluminosilicate of the smallest particle size having the composition0.9 to 1.1 Na.sub.2 O. 1 Al.sub.2 O.sub.3 . 1.8 to 2.5 SiO.sub.2with a water content depending on the degree of drying, which contains at least 99.8% by weight of a particle size of less than 25 .mu.m and has a high cation exchange capability, comprising crystallization of an aqueous alkaline suspension of an x-ray-amorphous sodium aluminosilicate, said suspension having a composition corresponding of the molar ratios of 1.5 to 5 Na.sub.2 O:1 Al.sub.2 O.sub.3 :1 to 4 SiO.sub.2 :40 to 400 H.sub.

Abstract: Raw petroleum coke is treated with a solvent to extract the soluble matter. The extracted matter is useful as coker feedstock, fuel, pitch binder, pitch precursor, impregnant and carbon black feedstock. The coke residue may be used without further treatment as a fuel or may be calcined for use in Hall aluminum cell anodes.

Abstract: Preparation of zeolites having the formula:(1.5.+-.0.6) M.sub.2/n O.Al.sub.2 O.sub.3.ySiO.sub.2.zH.sub.2 O[wherein y ranges from 20 to 90, z ranges from 2 to 12, M is at least one cation and n is the valence of M], comprising the admixing of diethyl-piperidinium hydroxide, or a salt thereof, with H.sub.2 O and with at least one Na compound, one Al compound and one Si compound, the molar ratios (ratios of oxides) being:SiO.sub.2 :Al.sub.2 O.sub.3 =from 20 to 120;H.sub.2 O:Na.sub.2 O=from 50 to 600;Na.sub.2 O:SiO.sub.2 =from 0.07 to 0.50;(DEPP).sub.2 O:SiO.sub.2 =from 0.05 to 0.50.The invention concerns also the thus obtained zeolites and their use for acid-catalyzed conversions of hydrocarbons.

Abstract: An improved process for the relatively rapid thermal stabilization of a multifilamentary acrylic fibrous material in the substantial absence of filament coalescence is provided. The fibrous material is initially contacted with a solution of hydroxylamine (as described), and subsequently with a solution of ammonium permanganate, calcium permanganate, magnesium permanganate, or mixtures thereof (as described). The resulting fibrous material which possesses a chemically altered structure is heated in an oxygen-containing atmosphere until a thermally stabilized acrylic fibrous material is formed which is capable of undergoing carbonization and is non-burning when subjected to an ordinary match flame.

Abstract: The invention relates to a method of preparing a product containing, as a single crystalline phase, a solid solution or .beta.'-sialon type having the general formula Si.sub.6-Z Al.sub.Z O.sub.Z N.sub.8-Z where Z=1 to 4, which comprises heating in a nitrogen atmosphere, at 1400.degree.-1600.degree. C., agglomerated elements obtained by drying a paste comprising a silico-aluminous material, such as kaolinitic clay, carbon, and a pore-generating agent comprised of fine particles of a ligneous material, such as sawdust or a powder of olive stones.

Abstract: A new porous zeolite, a method of making same and the use thereof in catalytic conversion of organic compounds. The new product has a composition, expressed in terms of moles of anhydrous oxides per 100 moles of silica as follows:(0-2.5)M.sub.2/n O:(0- 2.5)Al.sub.2 O.sub.3 :(100)SiO.sub.2wherein M is at least one cation having a valence n and wherein the zeolite is characterized by the distinctive X-ray powder diffraction pattern as shown in Table 1 herein. The new zeolite is prepared from a reaction mixture comprising a source of silica, a source of organic compounds of Group VB, alkali metal cations, water and with or without a source of alumina.

Abstract: The present invention provides the following:(a) A fluoride-treated zeolite in which the number of equivalents of fluoride exceeds the sum of the numbers of equivalents of all cations except for hydrogen, aluminium and silicon cations in the zeolite.(b) A process for fluoride-treating a zeolite wherein the zeolite is treated with a concentrated aqueous solution of a salt of hydrofluoric acid.(c) A process for at least partially removing metal ions from an aqueous solution, which comprises contacting the aqueous solution, containing the metal ions, with the fluoride-treated zeolite specified in (a) above or produced as specified in (b) above.(d) A process for the chromatographic separation of two or more metal ions in aqueous solution wherein the chromatographic stationary phase comprises the fluoride-treated zeolite specified in (a) above or produced as specified in (b) above.

Abstract: A process for producing carbon fibers from various kinds of pitches wherein the calorific values of the pitches are measured and the pitches thereafter subjected to a suitable procedure for producing carbon fibers therefrom depending on their measured calorific value.

Abstract: A carbon black reactor is comprised of a housing which defines a precombustion zone, a reaction zone and a quench zone which are in flow communication. Inlet means open into the precombustion zone or the reaction zone and is operable to introduce make hydrocarbon into the reactor. Also, inlet means open into the precombustion zone and is operable for the introduction of hot combustion gases into the precombustion zone. The make hydrocarbon is pyrolyzed by contact with the hot combustion gases as same flow along the reaction zone. After a predetermined time as determined by the length of flow along the reaction zone, the effluent produced by the pyrolysis of the make hydrocarbon by contact with the combustion gases is quenched to stop the reaction.

Abstract: Carbon black products useful as an ingredient in dry cell battery compositions are disclosed which have a wide aggregate size distribution with a range of measured aggregate volume from about 5.times.10.sup.4 to about 1.times.10.sup.9 nm.sup.3, a geometric mean aggregate volume (Log Vg, nm.sup.3) of about 6.2 to about 7.5, geometric standard deviation (for Log Vg, nm.sup.3) of about 0.7 to about 1.0, a dibutyl phthalate absorption ranging from about 210 to about 270 cc/100 g., a nitrogen surface area ranging from about 30 to about 60 m.sup.2 /g, an average stacking height (L.sub.c) of ordered graphitic layer segments ranging from about 2.7 to about 3.7 nm. Novel furnace carbon blacks are disclosed which have the same characteristics but have an average stacking height (Lc) of ordered graphitic layer segments ranging from about 1.6 to about 3.7 nm.

Abstract: A process for producing binderless, single phase bulk carbon or graphite articles having a fibrillar microstructure comprising the steps of assembling a plurality of polymer fibers into a preselected pattern, subjecting them to a temperature and pressure sufficient to cause heat distortion flow and concomitant self-bonding of contiguous fibers and pyrolyzing the fibers in a nonoxidizing atmosphere.

Abstract: New mineral polymers called polysialates have the empiral formula M.sub.n [--(Si--O.sub.2 --).sub.z --Al--O.sub.2 --].sub.n,wH.sub.2 O where z is 1, 2 or 3, M is sodium, or sodium plus potassium, n is the degree of polycondensation, and w has a value up to about 7. The method for making these polymers includes heating an aqueous alkali silico-aluminate mixture having an oxide-mole ratio within certain specific ranges for a time sufficient to form the polymer.

Abstract: Disclosed is a carbon fiber of improved oxidation resistance, which has a specific volume resistance of at least about 1.2.times.10.sup.-3 ohm cm, and containing at least about 2 wt. % of nitrogen and less than about 0.07 wt. % of total metal impurities. The carbon fiber is produced by using as the precursor fiber an acrylonitrile copolymer fiber, which copolymer is comprised of at least 95 mole % of units derived from acrylonitrile and not more than 5 mole % of units derived from a carboxyl group containing monoethylenically unsaturated monomer or monomers; the hydrogen atom of at least one --COOH contained in each of the units derived from the carboxyl group-containing monomer or monomers being replaced with a cation selected from ##STR1## wherein R is H, (C1-3) alkyl or phenyl; the replacement being to such an extent that the units having the cation occupy at least 0.1 mole %, based on the copolymer; and which copolymer contains less than about 0.05 wt. % of the total metal impurities.

Abstract: Crystalline synthetic zeolite, denoted "LZ-200", has an anhydrous composition in terms of mole-ratios of oxides of:0.9-1.1 Na.sub.2 O: Al.sub.2 O.sub.3 :1.9-2.4 SiO.sub.2,while having a pore diameter somewhat smaller than that of potassium zeolite A, and is useful as an adsorbent and ion-exchanger.

Abstract: An improved ion exchange method is provided in which an alkali metal cation-containing crystalline metallosilicate zeolite is contacted with an ion exchange medium comprising an ammonium ion, urea and water. The resulting mixture is heated to a temperature sufficient to evaporate the water and solidify the remaining mixture. An ammonium exchanged zeolite having a decreased content of alkali metal is recovered.

Abstract: Crystalline aluminosilicates having a high (greater than 10:1) silica to alumina molar ratio and an X-ray diffraction pattern substantially the same as that of ZSM-5 zeolite are prepared by mixing a source of silica, a source of alumina, a source of alkali metal, water and at least one monoalkanolamine selected from monoethanolamine and monopropanolamine or their precursors, the ratio of the source of silica to the source of alumina being at least 20:1 based on the equivalent moles of silica and alumina in their respective sources, and maintaining the mixture at a temperature of about 120.degree. C. or 135.degree. C. or more for a time such that crystallization occurs. Typical crystallization conditions are a temperature in the range 120.degree. to 210.degree. C., a pressure in the range from autogenous to 400 psig and a time not less than 4 hours and up to and in excess of 7 days.

Abstract: Carbon dioxide and air reactivity reactions occurring during carbon electrode use, can be minimized by the use of quench water treated with phosphoric acid following calcination of the coke used to make the electrode.

Abstract: As synthesized by previous methods, ZSM-5 or ZSM-11 zeolites are crystallized in the presence of substantial amounts of a nitrogen-containing compound. When synthesized in this way, they contain an organic ammonium cation as well as a metal cation such as sodium. To obtain a more active form, the sodium ion must be exchanged out. Such exchange, especially with ZSM-5 and ZSM-11, is difficult unless there is calcination of the zeolite to remove the obstructing organo compounds. By making these zeolites in the presence of (1) seeds of the desired zeolite, (2) mixtures of them with ammonium hydroxide and/or alcohol, (3) the alcohol per se or (4) mixtures of the alcohol with ammonium hydroxide, a product substantially deficient in organic ammonium cation is obtained. These products can be exchanged directly without any calcination.