Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Cr.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Cr.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of chromium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: Crystalline molecular sieves having a three-dimensional microporous framework structures of MgO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of magnesium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.

Abstract: The process of synthesis of crystals of the KTP type comprises dissolving a mixture of titanium oxide and of oxides, oxide precursors or salts of the constituents of the desired compounds or of compounds of the KTP type prepared beforehand in at least one alkali metal halide by heating at a plateau temperature of 1100.degree.-650.degree. C., cooling to a temperature close to ambient at a rate lower than about 50.degree. C./h.

Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of CoO.sub.2, AlO.sub.2, SiO.sub.2, PO.sub.2 and tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of cobalt, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents catalysts, etc. is also disclosed.

Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of M'O.sub.2, M"O.sub.2, AlO.sub.2, PO.sub.2, and SiO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(M'.sub.u M".sub.v Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (M'.sub.u M".sub.v Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; M' and M" represent two elements capable of forming framework tetrahedral units; and "u", "v", "x", "y" and "z" represent the mole fractions of M', M", aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.

Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Cr.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Cr.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of chromium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of BeO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Be.sub.w Al.sub.x P.sub.Y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Be.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of beryllium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of GaO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Ga.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Ga.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of gallium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: Aldehydes can be converted to dienes by contacting the aldehydes with a non-zeolitic molecular sieve. Preferably the non-zeolitic molecular sieve has, in its calcined form, an adsorption of isobutane of at least about 2 percent by weight of the non-zeolitic molecular sieve at a partial pressure of 500 torr and a temperature of 20.degree. C. The non-zeolitic molecular sieves can achieve good conversion rates and selectivities for the reaction. The reaction is especially useful for the conversion of 2-methylbutyraldehyde to isoprene.

Abstract: A process for the manufacture of novel phosphorus-vanadium and phosphorus-vanadium cometal catalysts having a characteristic X-ray diffraction pattern suitable for use in the manufacture of maleic anhydride from butane and other C.sub.4 hydrocarbon feedstocks which process comprises reacting at a temperature of about 0.degree. C. to about 200.degree. C. a vanadium compound in an organic ether solvent having about 2 to about 10 carbon atoms with a phosphoryl halide in the presence of water or an aliphatic alcohol having from about 1 to about 8 carbon atoms, eliminating the solvent, and activating the catalyst by the addition of the hydrocarbon feedstock and water and a phosphorus compound at a temperature of about 300.degree. C. to about 500.degree. C. wherein the amount of water added is about 1,000 parts per million to about 40,000 parts per million by weight of the reactor feed gas stream is disclosed. The catalysts are useful for the manufacture of maleic anhydride from butane and other C.sub.

Abstract: Crystalline calcium sodium metaphosphate is prepared by (a) forming a wet mix slurry having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na.sub.2 O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate.

Abstract: Substantially crystalline calcium sodium metaphosphate having a degree of crystallinity from about 60% to about 75% as determined from density and differential thermal analysis measurements is prepared by (a) bringing together in water source materials for CaO, Na.sub.2 O, and P.sub.2 O.sub.5 in proportions sufficient to provide a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio on a dry basis of about 29.0-34.0/16.0-18.0/50.0-53.0 and form a wet mix slurry containing a solid phase and an aqueous liquid phase and (b) heating the wet mix slurry at a temperature and for a time sufficient to remove the aqueous liquid phase and calcine the resulting solid phase to form the substantially crystalline calcium sodium metaphosphate.

Abstract: Substantially crystalline calcium sodium metaphosphate having a degree of crystallinity from about 60% to about 75% as determined from density and differential thermal analysis measurements is prepared by (a) forming a dry mixture of source materials for CaO, Na.sub.2 O, and P.sub.2 O.sub.5 in proportions sufficient to provide a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio on a dry basis of about 29.0-34.0/16.0-18.0/50.0-53.0 and (b) heating the mixture at a temperature and for a time sufficient devolatilize the mixture and calcine the resulting mixture to form the substantially crystalline calcium soldium metaphosphate.

Abstract: The molybdovanadophosphoric acid H.sub.8 PMo.sub.10 VO.sub.39, its PMo.sub.10 VO.sub.35 anhydride, methods for their preparation, and methods for making methacrylic acid and its esters by oxidation/dehydrogenation wherein the above acid and/or its anhydride is employed as a catalyst.

Abstract: Asbestiform crystalline calcium sodium metaphosphate fiber is prepared by (a) forming a wet mix slurry having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na.sub.2 O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate, and (c) fiberizing the product crystals of calcium sodium metaphosphate.

Abstract: Crystalline metallophosphoaluminates are prepared by hydrothermal crystallization utilizing a reaction mixture containing a substantially water-immiscible organic solvent wherein one of the aluminum, phosphorus or oxide sources is soluble in the organic solvent.

Abstract: A process for the production of crystalline alkali metal aluminum phosphate represented by the formulaNa.sub.a K.sub.b H.sub.c Al.sub.d (PO.sub.4).sub.e.xH.sub.2 Owherein a has a value of from 0.5 to 1.5, b has a value of from 0 to 0.5, c has a value of from 12 to 16, d has a value of from 2.7 to 3.3, e has a value of from 7 to 9 and x has a value of from 3 to 6, and wherein a+b+c+3d=3e, comprises mixing phosphoric acid, sodium hydroxide or sodium carbonate and potassium hydroxide or potassium carbonate in aqueous solution with aluminum hydroxide, potassium oxide or aluminum oxide hydrate in amounts defined by the above formula, with a content of free water in solution ranging from 5 to 44%. The reaction mixture is then heated at a temperature of from 80.degree. to 200.degree. C. (if necessary, under elevated pressure) such that partial crystallization takes place. The free water is thereafter completely removed, if necessary under reduced pressure, at a temperature between about 60.degree. to 130.degree. C.

Abstract: The process for producing microsized amorphous particles of a metal phosphate incorporates the steps offorming a solution of a metal alkoxide in an organic solvent,forming an aqueous phosphoric acid solution,introducing the alkoxide and the phosphoric acid solutions into a reactor vessel wherein the solutions are immiscible and forming two separate liquid phases with an interface,applying agitation to at least the region of the interface to promote a reaction between the metal alkoxide and said phosphoric acid at the interface,collecting the reaction product, andfiring it in an oxygen containing environment at a temperature sufficiently high to drive off the organic residue.

Abstract: A process for the manufacture of a phosphorus-vanadium and phosphorus-vanadium co-metal catalysts suitable for use in the manufacture of maleic anhydride from benzene, butane, and other C.sub.4 hydrocarbons which process comprises reacting at a temperature of about 0.degree. C. to about 200.degree. C. a vanadium compound in an organic ether solvent having about 2 to about 10 carbon atoms with a phosphoryl halide in the presence of water or an aliphatic alcohol having from about 1 to about 8 carbon atoms, eliminating the solvent and activating the catalyst by the addition of the hydrocarbon feedstock and water and a phosphorus compound at a temperature of about 300.degree. C. to about 500.degree. C. wherein the amount of water added is about 1000 parts per million to about 40,000 parts per million by weight of the reactor feed gas stream is disclosed. The catalysts are useful for the manufacture of maleic anhydride from butane, benzene, and other C.sub.4 hydrocarbon feedstocks.

Abstract: Asbestiform crystalline calcium sodium metaphosphate fibers are prepared by (a) forming a homogeneous melt of substantially crystalline calcium sodium metaphosphate having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 29.0-34.0/16.0-18.0/50.0-53.0 and a degree of crystallinity from about 60% to about 75% as determined from density and differential thermal analysis measurements, (b) supercooling the homogeneous melt, (c) seeding the supercool melt with calcium sodium metaphosphate crystals, (d) maintaining the seeded supercooled melt at the seeding temperature under isothermal conditions for a time sufficient to form crystalline blocks of calcium sodium metaphosphate, and (e) fiberizing the crystalline blocks.

Abstract: Crystalline molecular sieves having three-dimensional microporous framework structure of MO.sub.2, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis are expressed by the formula:mR:(M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; "M" represents at least two elements capable of forming framework tetrahedral oxides and selected from the group consisting of arsenic, beryllium, boron, chromium, gallium, germanium, lithium and vanadium; and "x", "y" and 37 z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.

Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MnO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of manganese, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of TiO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(Ti.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Ti.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of titanium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.

Abstract: A process for treating crystalline aluminophosphates to provide aluminophosphates having modified catalytic properties. The crystalline aluminophosphates are contacted with a halogen-derived compound at an effective temperature and for an effective time to alter the surface characteristics of the aluminophosphates with resulting modification of catalytic properties.

Abstract: A novel class of iron-aluminum-phosphorus-silicon-oxide molecular sieves is disclosed which contain as framework constituents FeO.sub.2.sup.-, and/or FeO.sub.2.sup.-2, AlO.sub.2.sup.-, PO.sub.2.sup.+ and SiO.sub.2 tetrahedral oxide units. These compositions are prepared hydrothermally, preferably using organic templating agents and are suitably employed as adsorbents and catalysts.

Abstract: A low expansion ceramic composition is represented by the formula Ca.sub.0.5 Ti.sub.2 P.sub.3 O.sub.12 in which up to 100 percent of the Ca is replaced by one or more of the other alkaline earth metals and alkali metals, the alkali metals being selected from the group consisting of Na, Li, K and combinations thereof and substituted in the ratio of two units of alkali metal for each unit of Ca replaced. Up to 100 percent of the Ti is replaced by one or more members selected from the group consisting of Zr, Sn, Nb, Ta and Cr. For each unit of Cr replacement an approximately equal unit of alkali metal is added. For each unit of Nb and/or Ta replacement an approximately equal unit of Na and/or K replaces a unit of Ca. Up to 100 percent of the P may be replaced by Si and/or S. The total of the amounts of Ca, other alkaline earth metals, Li, K, Ti, Sn, Nb, Ta and Cr is greater then zero. Preferably up to 100 percent of the Ca is replaced by Na, and up to 100 percent of the Ti is replaced by Zr or NaCr.

Abstract: Silicophosphoaluminates are crystallized from a two-phase reaction mixture comprising sources of silicon oxide, aluminum oxide and phosphorus oxide and a suitable directing agent. The silicophosphoaluminates produced have ion exchange properties and are readily convertible to catalytically active material.

Abstract: Molecular sieves, particularly zeolites, are prepared using adamantane compounds as templates.

Abstract: A new crystalline silicophosphoaluminate designated MCM-4 and having a particular crystal strcuture is provided. This crystalline material has ion-exchange properties and is readily convertible to catalytically active material.

Abstract: Crystals of potassium titanyl phosphate suitable for device applications are grown by a hydrothermal process. By maintaining the growth temperature substantially below conventional levels, the crystal growth rate is maintained, and noble metal-lined vessels are employable.

Abstract: A process for the manufacture of novel phosphorus-vanadium and phosphorus-vanadium co-metal catalysts having a characteristic X-ray diffraction pattern suitable for use in the manufacture of maleic anhydride from benzene, butane and other C.sub.4 hydrocarbons which process comprises reacting at a temperature of about 0.degree. C. to about 200.degree. C. a vanadium compound in an organic ether solvent having about 2 to about 10 carbon atoms with a phosphoryl halide in the presence of water or an aliphatic alcohol having from about 1 to about 8 carbon atoms, eliminating the solvent and activating the catalyst by the addition of the hydrocarbon feedstock and water and a phosphorus compound at a temperature of about 300.degree. C. to about 500.degree. C. wherein the amount of water added is about 1000 parts per million to about 40,000 parts per million by weight of the reactor feed gas stream is disclosed. The catalysts are useful for the manufacture of maleic anhydride from benzene, butane and other C.sub.

Abstract: A new and useful particulate magnesium phosphate product (MGP) and method of use therefor are disclosed for removing ammonia from aqueous solutions, e.g., recirculating dialysate solutions and intragastrointestinal fluids as may result from the hydrolysis of urea. This particulate magnesium phosphate product (MGP) acts as a remarkably effective scavenger wherein under equilibrium conditions only about six (6) grams of the novel product are required to bind the ammonia (more exactly, ammonium ions) liberated from one (1) gram of the urea, a result far superior to traditional zirconium phosphate (ZP) prior art materials which under ideal conditions require about 17-20 grams of ZP per gram of urea. The novel particulate magnesium phosphate product can be exploited in one embodiment as a replacement for the older ZP materials used to remove ammonia produced by enzymatic hydrolysis of urea in recirculating dialysis systems utilizing disposable cartridges.

Abstract: An improved method of synthesis for a composition comprising crystalline silicophosphoaluminate (MCM-2) is provided. The composition has ion-exchange properties and is readily convertible to catalytically active material. The synthesis method requires two liquid phases comprising a suitable organic or inorganic directing agent and specific reactants, including a specific aluminum phosphate of the ALPO-5 structure.

Abstract: A new crystalline silicophosphoaluminate designated MCM-5 and having a particular crystal structure is provided. This crystalline material has ion-exchange properties and is readily convertible to catalytically active material.

Abstract: A new crystalline silicophosphoaluminate designated MCM-1 and having a particular crystal structure is provided. This crystalline material has ion-exchange properties and is readily convertible to catalytically active material.

Abstract: A new crystalline silicophosphoaluminate designated MCM-3 and having a particular crystal structure is provided. This crystalline material has ion-exchange properties and is readily convertible to catalytically active material.

Abstract: A new crystalline silicophosphoaluminate molecular sieve designated MCM-10 and having a particular crystal structure is provided. This crystalline material has ion-exchange properties and is readily convertible to catalytically active material.

Abstract: The invention is directed to inorganic phosphate aerogels and the method of preparing such inorganic phosphate aerogels which are characterized by high surface areas and high pore volume. The preparation comprises reacting an inorganic alkoxide or metal salt with a phosphate to form a gelled or colloidal material which is further treated with a fluid at or above its critical temperature and pressure to extract the solvent which is then dried to remove surface water.

Abstract: An amorphous chromium (III) phosphate catalyst is used in alkylating aromatics and in the dehydration of alcohols to ethers.

Abstract: A new composition comprising crystalline antimonophosphoaluminate, designated MCM-14, and the novel method for its synthesis are provided. The composition has ion-exchange properties and is readily convertible to catalytically active material. The synthesis method requires two liquid phases comprising a suitable organic or inorganic directing agent and specific reactants.

Abstract: A low expansion ceramic material has a composition represented by the molecular formula i (Na) j (Zr.sub.2-z Na.sub.4z) k (P.sub.3-x Na.sub.x Si.sub.x)O.sub.12 in which the molar proportions i, j and k are each within the range from about 0.9 to about 1.1, and i+j+k equal 3; and, for molar proportions i, j and k each equal to 1.0, the ceramic composition falls within the area defined by the points A, B, C and D in a quarternary diagram of SiO.sub.2, Na.sub.2 O, P.sub.2 O.sub.5 and ZrO.sub.2, the coordinates of the points being:A: x=0.2, z=0B: x=0.6, z=0C: x=0, z=0.25D: x=0, z=0.125The ceramic material is especially suitable as a substrate for optically reflecting films.

Abstract: A flame retarded resin composition, which comprises 100 parts by weight of a synthetic resin, a sodium antimony phosphate amorphous product mixed in an amount of 0.05 to 30 parts by weight based on said synthetic resin, and optionally a flame retardant such as an organic halogenated compound further mixed in an amount of 1 to 30 parts by weight based on said synthetic resin. The resin composition has good transparency and coloring property.

Abstract: The invention provides a process for the manufacture of a crystalline, phosphorus-containing zeolite of the ZSM-5 type by mixing water, a silicon dioxide source, an alkali metal hydroxide and an aluminum compound, and reacting this mixture at a temperature of from 95.degree. to 230.degree. C. until the zeolite has crystallized, which comprises carrying out the reaction without addition of an organic compound but in the presence of aluminum phosphate. The zeolite obtained has the following molar ratios:SiO.sub.2 :Al.sub.2 O.sub.3 from 15 to 200,M.sub.2 O:SiO.sub.2 from 10.sup.-6 to 1 andH.sub.2 O:SiO.sub.2 from 0 to 40(M being an alkali metal). It is free from organic compounds and contains phosphate in a molar ratio of P.sub.2 O.sub.5 :SiO.sub.2 of from 10.sup.-5 to 0.1. X-ray diffraction patterns are indicated.

Abstract: A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity is provided.

Abstract: A process is provided for the recovery of one or more useful products including fertilizer, salt, and/or purified process water from brines. The source of the brines can be oil field wastes, seawater, or other inland brine sources. Phosphoric acid is initially added to the brine followed by addition of ammonia or a basic form of potassium. The resulting precipitate is useful as a fertilizer. The remaining salt in the brine may then be removed and recovered along with purified process water.

Abstract: Multicomponent catalysts comprising copper, a metal selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel and zinc; and phosphate are employed for oxidizing an aromatic carboxylic acid to the corresponding phenol, e.g., benzoic acid to phenol.

Abstract: Novel class of crystalline microporous metal aluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, one or a mixture of two or more of the metals Mg, Mn, Co and Zn in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.

Abstract: A heteropoly-acid of the formula:H.sub.3+x (PMo.sub.12-x V.sub.x O.sub.40).nH.sub.2 Owherein x and n are numbers satisfying respectively the equations: 0.ltoreq.x.ltoreq.3 and n.ltoreq.6, and comprising phosphorus as the central atom and molybdenum or molybdenum and vanadium as the coordinating atoms, or its reduction-form product, which is in a cubic crystal structure having diffraction lines at lattice spacings (d) of at least 8.4, 6.8, 5.9, 4.8, 4.2 and 3.4 in the X-ray powder diffraction. The heteropoly-acid is useful as a catalyst, especially as a catalyst in the production of methacrylic acid by the gas-phase catalytic oxidation of methacrolein.

Abstract: Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, ferric and/or ferrous iron in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.

Abstract: Process for producing potassium magnesium phosphate by reacting basic magnesium compounds with phosphoric acid or phosphates in the presence of potassium sulfate from a mother liquor containing per 1000 g water up to 150 g magnesium sulfate and up to 120 g potassium sulfate. Precipitation forms with addition of calcium oxide or hydroxide equimolar to present magnesium sulfate and after phosphoric acid adjustment of the pH to 2-4, mechanical separation and addition of potassium sulfate and basic magnesium compounds, the desired product results.