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公开(公告)号：US3897537A
公开(公告)日：1975-07-29
申请号：US24105772
申请日：1972-04-04
CPC分类号： C22B34/1204
摘要： An ilmenite ore may be beneficiated by oxidation to yield a pseudobrookite-containing material, reduction of the oxidation product to give a material having at least 4% of its iron content in the ferric state, and leaching of the reduced material. Leaching is facilitated by the previous two steps. The beneficiate is suitable for chlorination under fluidised-bed reaction conditions to yield titanium tetrachloride, and the reactivity of the beneficiate in chlorination may be enhanced by preliminary calcination to 600* - 700*C.
摘要翻译： 可以通过氧化来选择钛铁矿矿石以产生含假铁铁矿的材料，还原氧化产物以得到其铁含量至少为铁含量的4％的材料，并且还原材料的浸出。 以前的两个步骤促进了浸出。 在流化床反应条件下，选择适合氯化反应生成四氯化钛，通过预先煅烧至600〜700℃可提高选择性氯化反应性。
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公开(公告)号：US3862297A
公开(公告)日：1975-01-21
申请号：US9754170
申请日：1970-12-14
CPC分类号： C09C1/3692 , C01G23/0534 , C01G23/08 , C01P2002/52 , C01P2004/03 , C01P2006/62 , C09C3/063 , C09C3/08
摘要： The process comprises hydrolysing a solution of titanium sulphate, washing the titanium dioxide hydrolysate, and then calcining the hydrolysate at a temperature from 750 to 1000*C. to yield titanium dioxide pigment having desirable properties in terms of brightness, opacity, and/or texture. A rutile-promoting seed is incorporated with the titanium sulphate solution and/or with the hydrolysate. In the process, the pH of the wet hydrolysate is in the range of from 6 to 10 immediately before calcination, and there is present in the hydrolysate immediately before calcination an ammonium compound that will be expelled, together with any decomposition products thereof, during calcination; a treating agent or agents selected from beryllium, aluminium, magnesium, zinc and compounds thereof, and a treating agent or agents selected from sodium potassium, rubidium, caesium, and compounds thereof, with the proviso that lithium and/or a lithium compound may be substituted for any or all of the agent or agents selected from the first-mentioned and/or second-mentioned group. The total quantity of the ammonium compound is at least 0.7 percent (calculated as ammonium sulphate); the total quantity of agents from the first-mentioned group is from 0.02 to 0.50 percent (calculated as the metal oxide or oxides); and the total quantity of agents from the secondmentioned group is from 0.05 to 1.0 percent (calculated as the alkali metal oxide or oxides). All the percentages are by weight and are based on the weight of titanium dioxide. The ammonium compound and the treating agent or agents may be incorporated with the hydrolysate in any order. Conveniently, any necessary pH adjustment is effected at least in part by using an alkaline ammonium compound.
摘要翻译： 该方法包括水解硫酸钛溶液，洗涤二氧化钛水解物，然后在750〜1000℃的温度下煅烧水解产物，得到在亮度，不透明度和/或质地方面具有期望性能的二氧化钛颜料 。 将金红石促进种子与硫酸钛溶液和/或与水解产物结合。 在此过程中，湿式水解产物的pH在煅烧前立即在6至10℃范围内，在煅烧之前立即在水解产物中存在待煅烧的铵化合物及其任何分解产物在煅烧过程中 ; 选自铍，铝，镁，锌及其化合物的处理剂或试剂，以及选自钠钾，铷，铯及其化合物的处理剂或试剂，条件是锂和/或锂化合物可以是 代替选自前述和/或第二组的任何或所有试剂或试剂。 铵化合物的总量至少为0.7％（以硫酸铵计）; 来自前述组的试剂的总量为0.02〜0.50％（以金属氧化物计算）; 并且来自第二组的试剂的总量为0.05〜1.0％（以碱金属氧化物计算）。 所有的百分数均以重量计，基于二氧化钛的重量。 铵化合物和处理剂或试剂可以以任何顺序与水解产物结合。 方便地，至少部分地通过使用碱性铵化合物进行任何必要的pH调节。
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3.发明授权
公开(公告)号：US3847830A
公开(公告)日：1974-11-12
申请号：US21857472
申请日：1972-01-17
发明人： WILLIAMS S , LEAVER J , ABBOTT D
IPC分类号： C01B15/00 , C07C409/00 , C11D3/39 , C11D17/00 , C11D7/54
CPC分类号： C11D17/0039 , C01B15/005 , C11D3/3942 , C11D3/3945 , Y10T428/2991
摘要： 1. A PEROXYGEN-CONTAINING COMPOSITION CONSISTING ESSENTIALLY OF A PARTICULATE NORMALLY UNSTABLE PEROXYGEN COMPOUND AND A WATER DISPERSIBLE LAYER OF FROM 1% TO LESS THAN 15% BY WEIGHT, BASED ON THE WEIGHT OF THE LAYER AND OF THE PEROXYGEN COMPOUND, OF A SOLID WATERINSOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) FATTY ACIDS OF GREATER THAN 8 CARBON ATOMS, (2) ALKANOLAMIDES OF FATTY ACIDS OF AT LEAST 8 CARBON ATOMS, (3) GLYCEROL ESTERS OF FATTY ACIDS OF AT LEAST 8 CARBON ATOMS, (4) LONG-CHAIN ALIPHATIC HYDROCARBON ALCOHOLS, AND (5) PARAFFIN WAXES, THE LAYER ENVELOPING THE PARTICLES OF PEROXYGEN COMPOUND AND AT LEAST PARTIALLY STABILIZING THEM TO DECOMPOSITION.
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公开(公告)号：US3839389A
公开(公告)日：1974-10-01
申请号：US6180070
申请日：1970-08-06
发明人： NEUMANN B
CPC分类号： C01B33/405 , B01J47/016 , C01B33/44 , C10M113/10 , C10M113/16 , C10M2201/14 , C10M2215/04 , C10M2215/042 , C10M2215/22 , C10M2215/221 , C10M2215/224 , C10M2215/225 , C10M2215/226 , C10M2215/26 , C10M2215/30 , C10M2217/046 , C10M2217/06 , C10N2250/10 , C10N2250/121
摘要： 1. A SYNTHETIC SILICATE STRUCTURALLY ANALOGOUS TO NATURAL HECTORITE AND WHICH IS CAPABLE OF FORMING AN ORGANOSOL, SAID SILICATE HAVING (A) THE GENERAL FORMULA
(SI8.MG6-X,LIX,O20(OH(4-Y,FY)X(-)XO+
WHERE O+ IS AN EQUIVALENT OF AN EXCHANGEABLE ORGANIC AMMONIUM CATION HAVING AT LEAST ONE CHAIN OF AT LEAST 18 CARBON ATOMS, THE OTHER SUBSTITUENTS ON THE AMMONIUM CATION BEING INDEPENDENTLY SELECTED FROM THE HYDROGEN, ALIPHATIC HYDROCARBONS, AROMATIC HYDROCARBONS, CYCLIC HYDROCARBONS AND TWO POLYOXYETHYLENE GROUPS, PROVIDED THAT THE CATION IS A TERTIARY AMINE HAVING A SINGLE ALKYL GROUP WHEN THE SUBSTITUENTS ARE THE TWO POLYOXYETHYLENE GROUPS,X IS GREATER THAN ZERO, BUT LESS THAN 6; Y IS AT LEAST 1, BUT LESS THAN 4; (B) A D0001 SPACING OF 38$3 A.; AND (C) CONTAINING THE ORGANIC AMMONIUM CATION HELD WITHIN THE STRUCTURE OF THE SYNTHETIC SWELING CLAY TO AN AMOUNT OF AT LEAST ABOUT 40% IN EXCESS OF THE CATION EXCHANGE CAPACITY OF THE CLAY.-
5.发明授权Catalyst for purification of exhaust gases from motor vehicles and industrial plants 失效用于净化汽车和工业厂房排气的催化剂
公开(公告)号：US3787322A
公开(公告)日：1974-01-22
申请号：US3787322D
申请日：1971-01-25
申请人： LAPORTE INDUSTRIES LTD , DEGUSSA
发明人： KOBERSTEIN E , LAKATOS E
CPC分类号： B01D53/944 , B01J23/868
摘要： This invention provides a catalyst composition for use in oxidative reactions at high temperatures e.g., the oxidation of exhaust gases from internal combustion engines, which catalyst comprises an at least substantially homogeneous mixture of aluinium oxide of cubic structure (i.e., of the gamma series) oxide of copper and chromium, and optionally at least one compound of at least one other element of Group IIa of the Periodic Table, the proportion of the aluminium xoide being from 20 percent to 45 percent by weight of total catalyst weight, together with said at least one other compound, expressed as oxide, the mole ratio of copper oxide to chromium oxide in the oxide of copper and chromium, expressed as CuO:Cr2O3, being from 1.2:1 to 2.2:1, and the majority of oxide of copper and chromium being of a size of from 0.5 to 5 Mu . The invention also provides a process for making such a catalyst.
摘要翻译： 本发明提供了用于高温氧化反应的催化剂组合物，例如来自内燃机的废气的氧化，该催化剂包含至少基本上均匀的立方结构氧化铝（即γ系列氧化物）的混合物 的铜和铬，以及任选的至少一种元素周期表IIa族的至少一种其它元素的化合物，所述氧化铝的比例为总催化剂重量的20重量％至45重量％，以及所述至少 一种表示为氧化物的化合物，铜和铬的氧化物中的氧化铜与氧化铬的摩尔比（以CuO：Cr2O3表示）为1.2:1至2.2:1，并且大部分铜和铬的氧化物 尺寸为0.5至5亩。 本发明还提供了制备这种催化剂的方法。
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公开(公告)号：US3695837A
公开(公告)日：1972-10-03
申请号：US3695837D
申请日：1970-05-28
摘要： CRYSTALLINE SYNTHETIC ZEOLITES ARE PREPARED BY REACTING IN AN AQUEOUS REACTION MIXTURE IN SUITABLE PROPORTIONS A SILICEOUS COMPONENT, AN ALUMINA COMPONENT, AND AN ALKALI METAL COMPONENT, A PORTION OF THE SILICEOUS COMPONENT BEING PROVIDED BY A CRYSTALLINE ALUMINOSILICEOUS COMPOUND OBTAINED BY PARTIALLY REMOVING ALUMINUM FORM THE LATTICE OF A CRYSTALLINE ZEOLITE WITH AN ACID WHILE RETAINING AT LEAST SOME CRYSTALLINITY.
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7.发明授权
公开(公告)号：US3695765A
公开(公告)日：1972-10-03
申请号：US3695765D
申请日：1970-04-22
发明人： BOL JAN PAUL , GEBHART JOSEPH , SEGER GUNTHER
CPC分类号： G01J3/4412 , B65G2814/0317 , G01N15/0205
摘要： A method for measuring the diameter of particles in a suspension wherein a particle-free layer having substantially the same refractive index as the suspending medium is provided directly above the suspension and the upper surface of the suspension is illuminated at a large angle of incidence by a beam of radiation passing through the particle-free layer and the intensity of radiation that is scattered by the suspended particles and then re-enters the layer is measured for one or more small scattering angles. These measurements of scattered radiation provide a measure of the mean particle diameter of the suspended particles that is substantially independent of the concentration of particles in the suspension.
摘要翻译： 一种用于测量悬浮液中颗粒直径的方法，其中具有与悬浮介质基本上相同的折射率的无颗粒层直接设置在悬浮液的正上方，悬浮液的上表面以大的入射角被照射 测量通过无颗粒层的辐射束和被悬浮颗粒散射然后重新进入层的辐射强度，以获得一个或多个小散射角。 散射辐射的这些测量提供了基本上与悬浮液中的颗粒浓度无关的悬浮颗粒的平均粒径的量度。
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公开(公告)号：US3912766A
公开(公告)日：1975-10-14
申请号：US31362472
申请日：1972-12-11
发明人： LOGAN WILLIAM REID , RIPPON ALAN
IPC分类号： C01B15/023 , C07C49/62 , C01B15/025
CPC分类号： C01B15/023
摘要： Continuous operation of a cyclic process for the production of hydrogen peroxide, each cyclic involving catalytic hydrogenation followed by oxidation of a useful quinone compound and extraction of hydrogen peroxide, results in the formation of quinone degradation products, of which one known class is quinone epoxides. According to the present invention, useful quinone compounds may be regenerated from degraded working solutions, particularly solutions containing both quinone epoxides and other degradation products by subjecting the solution to a combination of at least two different regeneration treatments such as or treating the working solution in both the reduced and oxidised states.
摘要翻译： 连续操作用于生产过氧化氢的循环过程，每个循环涉及催化氢化，然后氧化有用的醌化合物和萃取过氧化氢，导致醌降解产物的形成，其中一种已知的类是醌环氧化物。
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公开(公告)号：US3864461A
公开(公告)日：1975-02-04
申请号：US28454072
申请日：1972-08-29
CPC分类号： C10G45/08 , B01J21/04 , C01F7/141 , C01F7/34 , C01P2006/10 , C01P2006/12
摘要： Low bulk density alumina consisting essentially of pseudoboehmite can be produced by forming aqueous solutions of sodium aluminate and aluminium sulphate having concentrations within defined ranges, controlling the rate of introduction of the sodium aluminate solution into a body of the aluminum sulphate solution and agitation of the mixture such that a substantial proportion of hydrous alumina precipitates under acidic conditions, controlling the temperataure of the mixture, and controling the length of time of alkaline ageing. The hydrous alumina is then filtered, preferably water washed, and then dried. The low bulk density alumina is useful as a catalyst base, particularly for hydrodesulphurization catalysts.
摘要翻译： 基本上由假勃姆石组成的低体积密度氧化铝可以通过形成浓度在规定范围内的铝酸钠和硫酸铝水溶液来制备，控制将铝酸钠溶液引入硫酸铝溶液体中并搅拌混合物 使得相当比例的含水氧化铝在酸性条件下沉淀，控制混合物的温度，并控制碱性老化的时间长度。 然后过滤含水氧化铝，优选水洗，然后干燥。 低体积密度氧化铝可用作催化剂基质，特别是用于加氢脱硫催化剂。
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公开(公告)号：US3754956A
公开(公告)日：1973-08-28
申请号：US3754956D
申请日：1971-03-02
CPC分类号： C08L67/04 , C01P2004/84 , C08K9/04 , C09C1/3692 , C09C3/006 , C09C3/063 , C09C3/10
摘要： The wetting and dispersion characteristics of titania pigments in plastic materials is improved by treating the pigment with from 0.1-60.0 percent by weight of a polylactone having terminal hydroxy groups, the polylactone being in liquid form or in solution.
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