摘要:
The invention concerns a zeolite with structure type MTT comprising MTT zeolite crystals with a size of less than 5 &mgr;m, at least a portion of the MTT zeolite crystals being in the form of MTT zeolite crystal aggregates, said zeolite being characterized in that the granulometry of the aggregates is such that the dimension Dv,90 is in the range 40 nm to 100 &mgr;m. The invention also concerns the preparation of the zeolite and the use of the zeolite as a catalyst in a process for converting hydrocarbon feeds, and in particular in a process for isomerizing straight chain paraffins.
摘要:
The present invention concerns a process for synthesising a zeolite with structure type MTT comprising at least one element X selected from silicon and germanium and at least one element T selected from aluminium, iron gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, comprising reacting an aqueous mixture comprising at least one source of at least one element X, at least one source of at least one element T, and at least one precursor of an organic compound comprising at least one alkylated polymethylene &agr;-&ohgr; diammonium derivative, characterized in that at least one precursor is selected from monoamines. The present invention also concerns the use of the zeolite obtained as a catalyst in a process for converting hydrocarbon-containing feeds, as an adsorbent to control pollution and as a molecular sieve for separation.
摘要:
The present invention concerns a process for preparing a zeolite with structure type MTT comprising at least one element X selected from silicon and germanium and at least one element T selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, characterized in that seeds of at least one zeolitic material are used comprising at least one element X′ selected from silicon and germanium and at least one element T′ selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, said seeds being different from the zeolite with structure type MTT being synthesised. The present invention also concerns the use of the zeolite obtained as a catalyst in a process for converting hydrocarbon-containing feeds, as an adsorbent to control pollution and as a molecular sieve for separation.
摘要:
This invention relates to a process for synthesis of an EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, whereby said process is carried out in the presence of an organic structuring agent that is derived from dibenzyldimethylammonium (DBDMA) or its precursors and in the presence of nuclei of at least one zeolitic material of the same structure as the zeolite that is to be synthesized. The zeolite that is thus obtained has an X/T ratio of between 5 and 50. It is used in particular as a catalyst, for example in a process for isomerization of aromatic compounds with 8 carbon atoms per molecule.
摘要:
This invention relates to an EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese. The zeolite of the invention has an X/T ratio of between 5 and 50 and an N/T ratio of between 0.010 and 0.065. This invention also relates to the use of the EUO zeolite as a catalyst in a process for conversion of hydrocarbon feedstocks and more particularly in a process for isomerization of aromatic compounds with 8 carbon atoms per molecule.
摘要:
A process for synthesising a zeolite with structure type EUO comprising at least one element X selected from silicon and germanium and at least one element T selected from aluminum, iron, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, comprises reacting an aqueous mixture comprising at least one source of at least one element X, at least one source of at least one element T, and at least one precursor of an organic compound comprising at least one alkylated polymethylene &agr;-&ohgr; diammonium derivative, wherein at least one precursor is selected from monoamines. The zeolite obtained is used as a catalyst in a process for converting hydrocarbon-containing feeds, as an adsorbent to control pollution and as a molecular sieve for separation, and particularly for isomerising aromatic compounds containing 8 carbon atoms.
摘要:
A crystallized solid of metallophosphate type, referred to by the designation IM-8 can be partially substituted by an element X and optionally by an element Y. The metallophosphate is of a chemical composition, expressed on an anhydrous basis is defined by the formula Rs(GgPpXxYy)O2 in which G represents one or more trivalent elements, R represents one or more organic compounds, X represents one or more divalent elements, and Y represents one or more tetravalent elements, and in which s≦0.2, g≦0.5, p≦0.5, x≦0.4 and y≦0.3 with g+p+x+y=1. The crystallized solid is useful as an adsorbent.
摘要翻译:由名称为IM-8的金属磷酸盐结晶的固体可以被元素X和任选的元素Y部分地取代。金属磷酸盐是以无水为基础的化学组成,由式R' (G)p u> x i> x u> 其中G表示一个或多个三价元素,R表示一种或多种有机化合物,X表示一种或多种二价元素,Y表示一种或多种四价元素,其中s <= 0.2,g < 0.5,p <= 0.5,x <= 0.4,y <= 0.3,其中g + p + x + y = 1。 结晶的固体可用作吸附剂。
摘要:
The invention concerns a process for preparing an EU-1 zeolite having a XO2/Y2O3 ratio in the range 10 to 100, comprising the following steps: a) mixing, in an aqueous medium, at least one source of at least one oxide XO2, X being selected from silicon and/or germanium, at least one source of at least one oxide Y2O3, Y being selected from aluminium, iron, gallium and boron, and at least one organic template Q; b) drying the reaction mixture derived from step a) at a temperature of less than 200° C.; c) hydrothermal treatment of the dried reaction mixture derived from step b) in an autoclave, said dried reaction mixture not being in contact with a liquid phase at the bottom of the autoclave.
摘要翻译:本发明涉及一种制备XO2 / Y2O3比例在10至100范围内的EU-1沸石的方法,包括以下步骤:a)在水性介质中混合至少一种氧化物XO 2的源, X选自硅和/或锗,至少一种氧化物Y 2 O 3,Y选自铝,铁,镓和硼的至少一种源和至少一种有机模板Q; b)在低于200℃的温度下干燥衍生自步骤a)的反应混合物; c)在高压釜中对来自步骤b)的干燥反应混合物进行水热处理,所述干燥的反应混合物不与高压釜底部的液相接触。
摘要:
The invention relates to a metallophosphate-type crystallized solid, referred to by the name IM-6, which exhibits an X-ray diffraction diagram as given below. This metallophosphate-type solid can be partially substituted by an element X and optionally by an element Y. Said metallophosphate exhibits a chemical composition, expressed on an anhydrous base, defined by the formula RS,(GgPpXxYy)O2, where G represents one or more trivalent element(s), R represents one or more organic compound(s), X represents one or more divalent element(s), Y represents one or more tetravalent element(s), and in which s≦0.2, g≦0.5, p≦0.5, x≦0.4, y≦0.3, with g+p+x+y=1.
摘要翻译:本发明涉及名称为IM-6的金属磷酸盐型结晶固体,其表现出如下所示的X射线衍射图。 该金属磷酸盐型固体可以部分地被元素X和任选地被元素Y取代。所述金属磷酸盐表现出由无水碱表示的化学组成,由式R 3定义(G < 其中G表示一个或者两个或者两个或多个,其中G表示一个或者两个, 更多的三价元素,R表示一种或多种有机化合物,X表示一种或多种二价元素,Y表示一种或多种四价元素,其中s <= 0.2, = 0.5,p <= 0.5,x <= 0.4,y <= 0.3,其中g + p + x + y = 1。
摘要:
The invention concerns a process for preparing an EU-1 zeolite having a XO2/Y2O3 ratio in the range 10 to 100, comprising the following steps: a) mixing, in an aqueous medium, at least one source of at least one oxide XO2, X being selected from silicon and/or germanium, at least one source of at least one oxide Y2O3, Y being selected from aluminium, iron, gallium and boron, and at least one organic template Q; b) drying the reaction mixture derived from step a) at a temperature of less than 200° C.; c) hydrothermal treatment of the dried reaction mixture derived from step b) in an autoclave, said dried reaction mixture not being in contact with a liquid phase at the bottom of the autoclave.
摘要翻译:本发明涉及一种制备XO2 / Y2O3比例在10至100范围内的EU-1沸石的方法,包括以下步骤:a)在水性介质中混合至少一种氧化物XO 2的源, X选自硅和/或锗,至少一种氧化物Y 2 O 3,Y选自铝,铁,镓和硼的至少一种源和至少一种有机模板Q; b)在低于200℃的温度下干燥衍生自步骤a)的反应混合物; c)在高压釜中对来自步骤b)的干燥反应混合物进行水热处理,所述干燥的反应混合物不与高压釜底部的液相接触。