摘要:
This invention relates to a new form of crystalline silicoaluminophosphate identified as SAPO-17, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
摘要:
A process is disclosed for producing an alpha-, beta-ethylenically unsaturated monocarboxylic acid compound which comprises the aldol-type condensation of a saturated aliphatic monocarboxylic acid compound under vapor phase conditions in the presence of a hydrocarbon of 6 to 12 carbon atoms and a solid catalyst.
摘要:
A method for synthesizing hydrocarbons from a methane source which comprises contacting methane with a reducible oxide of Fe. The iron oxide is preferably combined with an amount of alkali and/or alkaline earth metal which is sufficient to improve the selectively to higher hydrocarbon products. The oxide is reduced by the contact which is carried at about 500.degree. to 1000.degree. C. Reducible oxides of Fe are regenerated by oxidizing the reduced composition with oxygen. The oxide Fe.sub.3 O.sub.4 is particularly effective in the process. Bulk iron oxides promoted by sodium and/or compounds thereof are particularly preferred contact solids.
摘要翻译:一种从甲烷源合成烃的方法,包括使甲烷与Fe的还原氧化物接触。 氧化铁优选与一定量的碱金属和/或碱土金属组合,其足以改善选择性地高级烃产物。 通过在约500℃〜1000℃下进行的接触来还原氧化物。通过用氧氧化还原的组成来再生Fe的可还原氧化物。 氧化物Fe 3 O 4在该方法中特别有效。 由钠和/或其化合物促进的体内氧化铁是特别优选的接触固体。
摘要:
Process for preparing a basic lithium phosphate catalyst suitable for the gas phase isomerization of an alkene oxide to the corresponding alcohol, in which process an aqueous solution of a lithium compound is mixed in the presence of an alkali metal hydroxide with an aqueous solution of a phosphate salt or phosphoric acid, the process being characterized in that the aqueous solution of the phosphate salt or phosphoric acid is added evenly during a period of at least six hours to the homogeneously stirred aqueous solution of the lithium compound, upon which the precipitated lithium phosphate is washed with water and subsequently calcined.
摘要:
This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating a metals solution containing cobalt and an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, flat plate crush strengths greater than about 16 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
摘要:
A honeycomb catalyst consisting of from 30 to 95% by weight, calculated as Fe.sub.2 O.sub.3, of an iron compound and from 0.1 to 60% by weight, calculated as Al.sub.2 O.sub.3, CeO.sub.2 or Cr.sub.2 O.sub.3, of an aluminum, cerium and/or chromium compound and/or from 1 to 50% by weight of an alkali metal compound, in particular potassium, calculated as K.sub.2 O, and/or from 0.2 to 20% by weight, calculated as MeO.sub.3, of an element of sub-group 6, preferably MoO.sub.3 and WO.sub.3, and/or from 0.1 to 20% by weight, calculated as V.sub.2 O.sub.5, of a compound of vanadium and/or from 0.1 to 20% by weight, calculated as P.sub.2 O.sub.5, of a compound of phosphorus, a process for the preparation of the honeycomb catalyst, and the use of the catalyst for organic reactions.
摘要翻译:一种蜂窝状催化剂,其以Al 2 O 3,CeO 2或Cr 2 O 3计算的铝,铈和/或铬化合物和/或铬化合物计为30至95重量%,以Fe 2 O 3计,铁化合物和0.1至60重量% 或1至50重量%的碱金属化合物,特别是钾(以K 2 O计)和/或0.2至20重量%(以MeO 3计),为第6族元素,优选MoO 3和WO 3 ,和/或0.1至20重量%,以V 2 O 5计,钒化合物和/或按重量计0.1至20重量%的磷化合物,磷化合物的制备方法 催化剂和催化剂用于有机反应。
摘要:
An isomerization catalyst which is useful for lowering the normal paraffin content of a hydrocarbon oil feedstock is described. The catalyst comprises an intermediate pore size silicoaluminophosphate molecular sieve and at least one Group VIII metal wherein the metal is occluded in the moleular sieve.
摘要:
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.
摘要:
An improved method for dehydrogenating dehydrogenatable hydrocarbons by contacting a gas comprising said hydrocarbons and an oxidative dehydrogenation agent at dehydrogenation conditions, the improvement which comprises contacting the hydrocarbon with an oxidative dehydrogenation agent containing a promoting amount of alkali metal and/or compounds thereof and associated with a support selected from the group consisting of alkaline earth metals and compounds thereof.
摘要:
This invention relates to a process for preparing catalyst supports with a wide pore size distribution by simultaneously titrating an acid aluminum species and a basic aluminum species, and interacting the precipitate with a phosphorus-containing oxide during the aging step. The porous resulting alumina supports have surface areas above about 300 m.sup.2 /g with a significant fraction of the pores having diameters greater than 350 .ANG. and a significant fraction of the pores having diameters less than 70 .ANG..