Iron sulfide and process for producing the same
    42.
    发明授权
    Iron sulfide and process for producing the same 有权
    硫化铁及其制造方法

    公开(公告)号:US06258259B1

    公开(公告)日:2001-07-10

    申请号:US09488710

    申请日:2000-01-21

    CPC classification number: B01J27/043 C01G49/12 C10G1/086

    Abstract: The invention provides an iron sulfide characterized in that it comprises FeS2, Fe1−XS, Fe3O4 and FeSO4, and that the secondary particles thereof, have a 50% volume-cumulative particle diameter of from 20 to 300 &mgr;m. The invention also provides a process for producing an iron sulfide comprising the steps of introducing (a) ferrous sulfate monohydrate having a d50 of from 20 to 300 &mgr;m and (b) not less than stoichiometric amount of at least one sulfur compound selected from elemental sulfur and hydrogen sulfide into the fluidized bed of a furnace and then fluidizing, burning, and reacting the ingredients at a temperature of from 350 to less than 630° C., a superficial velocity of 0.1 m/sec or higher, and a pressure of 1 atm or higher using air as a fluidizing gas. The present invention is useful, for example, in a process of coal liquefaction or heavy-oil hydrocracking.

    Abstract translation: 本发明提供一种硫化铁,其特征在于,其包含FeS 2,Fe 1-XS,Fe 3 O 4和FeSO 4,并且其二次颗粒具有20-300μm的50%体积累积粒径。 本发明还提供一种生产硫化铁的方法,包括以下步骤:(a)d50为20-300μm的硫酸亚铁一水合物,和(b)不少于化学计量的至少一种选自元素硫的硫化合物 和硫化氢进入炉的流化床,然后在350至小于630℃的温度,0.1m / sec或更高的表观速度和1的压力下使成分流化,燃烧和反应 大气或更高使用空气作为流化气体。 本发明例如在煤液化或重油加氢裂化的过程中是有用的。

    Sulfide catalysts for reducing SO2 to elemental sulfur
    43.
    发明申请
    Sulfide catalysts for reducing SO2 to elemental sulfur 审中-公开
    用于将SO2还原成元素硫的硫化物催化剂

    公开(公告)号:US20010000475A1

    公开(公告)日:2001-04-26

    申请号:US09729366

    申请日:2000-12-05

    Abstract: A highly efficient sulfide catalyst for reducing sulfur dioxide to elemental sulfur, which maximizes the selectivity of elemental sulfur over byproducts and has a high conversion efficiency. Various feed stream contaminants, such as water vapor are well tolerated. Additionally, hydrogen, carbon monoxide, or hydrogen sulfides can be employed as the reducing gases while maintaining high conversion efficiency. This allows a much wider range of uses and higher level of feed stream contaminants than prior art catalysts.

    Abstract translation: 用于将二氧化硫还原为元素硫的高效硫化物催化剂,其使元素硫对副产物的选择性最大化并具有高转化效率。 各种进料流污染物,例如水蒸汽是良好耐受的。 此外,可以使用氢气,一氧化碳或硫化氢作为还原气体,同时保持高的转化效率。 这允许比现有技术的催化剂更广泛的使用范围和更高水平的进料流污染物。

    Catalyst for the selective hydrogenation of diolefinic hydrocarbons
    44.
    发明授权
    Catalyst for the selective hydrogenation of diolefinic hydrocarbons 失效
    用于二烯烃选择性氢化的催化剂

    公开(公告)号:US4695560A

    公开(公告)日:1987-09-22

    申请号:US945139

    申请日:1986-12-22

    Abstract: A composition is presented for a catalyst useful in the selective hydrogenation of unconjugated diolefinic hydrocarbons to monoolefinic hydrocarbons. The catalyst comprises nickel and sulfur deposited on the surface of an alumina support. The preferred catalyst does not contain halogens, noble metals, alkaline earth metals, or alkali metals and is characterized by having only a very low percentage of the total pore volume being provided by pores having an average pore diameter less than 150 angstroms. The great majority of the pore volume is present in the form of macropores having diameters of 500 to 1500 angstroms.

    Abstract translation: 介绍了一种可用于将非共轭二烯烃选择氢化成单烯烃的催化剂组合物。 催化剂包含沉积在氧化铝载体表面上的镍和硫。 优选的催化剂不含有卤素,贵金属,碱土金属或碱金属,其特征在于,具有通过平均孔径小于150埃的孔提供的总孔体积百分比非常低。 孔体积的绝大部分以直径为500至1500埃的大孔的形式存在。

    Process for the selective oxidation of olefins with photochemical
illumination of semiconductor powder suspensions
    45.
    发明授权
    Process for the selective oxidation of olefins with photochemical illumination of semiconductor powder suspensions 失效
    用半导体粉末悬浮液的光化学照明选择性氧化烯烃的方法

    公开(公告)号:US4571290A

    公开(公告)日:1986-02-18

    申请号:US643149

    申请日:1984-08-22

    Abstract: A process for the selective oxidation of olefins comprises the steps of forming a suspension of semiconductor powder in a solvent media, adding an olefin to the solvent media in the presence of an oxidant to form a mixture and, photochemically activating the mixture with illumination having an energy at least equal to the band gap of the semiconductor powder wherein the selectivity is controlled by the selection of A, of the solvent and of the oxidant. The process is one carried out at about ambient temperature and with gentle agitation. The semiconductor powder has the general formula A.sub.x B.sub.y C.sub.z where A is selected from Bi, Sn, Pt, Pd, Cu, Fe, W, V, Sb, Mo, Ru or Ag and mixtures thereof; B is Te, Sb, Ti, Cd, Mo, V or W and mixtures thereof; C is O or S; x equals 0 to 5; y equals 1 to 3; and z is a number necessary to satisfy the other elements, and is optionally metallized by an element selected from Pt, Pd, Cu or Ag.

    Abstract translation: 用于烯烃选择性氧化的方法包括以下步骤:在溶剂介质中形成半导体粉末的悬浮液,在氧化剂存在下向溶剂介质中加入烯烃以形成混合物,并用光照化学活化混合物, 至少等于半导体粉末的带隙的能量,其中通过选择A,溶剂和氧化剂来控制选择性。 该方法是在大约环境温度下进行,同时轻轻摇动。 半导体粉末具有通式AxByCz,其中A选自Bi,Sn,Pt,Pd,Cu,Fe,W,V,Sb,Mo,Ru或Ag及其混合物; B是Te,Sb,Ti,Cd,Mo,V或W及其混合物; C为O或S; x等于0到5; y等于1到3; 并且z是满足其它元素所需的数目,并且任选地通过选自Pt,Pd,Cu或Ag的元素进行金属化。

    Process for selective formation of C.sub.4 compounds and organic
sulfide-containing catalyst system used therein
    46.
    发明授权
    Process for selective formation of C.sub.4 compounds and organic sulfide-containing catalyst system used therein 失效
    用于选择性形成C4化合物和其中使用的含有机硫化物的催化剂体系的方法

    公开(公告)号:US4339611A

    公开(公告)日:1982-07-13

    申请号:US215556

    申请日:1980-12-11

    Abstract: C.sub.4 compounds including n-butanol and n-butanal are produced by reacting methanol, hydrogen, and carbon monoxide, in the presence of a cobalt catalyst selected from the group consisting of (a) a cobalt carbonyl, (b) a hydrido cobalt carbonyl and (c) a cobalt-containing material convertible to a cobalt carbonyl or a hydrido cobalt carbonyl, an iodine promotor and an organic sulfide having the formula:R.sub.1 --S--R.sub.2wherein R.sub.1 and R.sub.2 can be the same or different members selected from the group consisting of saturated or unsaturated, straight or branched chain alkyl radicals having from one to 24 carbon atoms, cycloalkyl radicals having from three to 40 carbon atoms, aryl radicals having from six to 20 carbon atoms, aralkyl and alkaryl radicals having from six to 40 carbon atoms and halogen substituted derivatives thereof. A high degree of selectivity towards the formation of butanol and butanal is provided by using the cobalt entity and the organic sulfide in a molar ratio in the range of about 2:1 to about 1:10, based on elemental cobalt and sulfur. The reaction is conducted at elevated temperature and pressure conditions for a time sufficient to convert methanol to n-butanol and n-butanal.

    Abstract translation: 包括正丁醇和正丁醛的C 4化合物通过甲醇,氢气和一氧化碳在钴催化剂存在下制备,所述钴催化剂选自(a)羰基钴,(b)羰基钴和 (c)可转化为羰基钴或羰基钴的钴的物质,碘促进剂和有机硫化物,其具有下式:R1-S-R2,其中R1和R2可以是相同或不同的选自基团 由具有1至24个碳原子的饱和或不饱和的直链或支链烷基,具有3至40个碳原子的环烷基,具有6至20个碳原子的芳基,具有6至40个碳原子的芳烷基和烷芳基 原子和卤素取代的衍生物。 通过使用基于元素钴和硫的摩尔比在约2:1至约1:10范围内的钴实体和有机硫化物来提供对形成丁醇和丁醛的高度选择性。 反应在升高的温度和压力条件下进行足以将甲醇转化为正丁醇和正丁醛的时间。

    Olefin dimerization
    47.
    发明授权
    Olefin dimerization 失效
    烯烃二聚

    公开(公告)号:US3959400A

    公开(公告)日:1976-05-25

    申请号:US535543

    申请日:1974-12-23

    Inventor: Stanley J. Lucki

    Abstract: A process is provided for dimerization of light olefins comprising from 2 to 4 carbon atoms which comprises contacting same at a weight hourly space velocity of from about 0.1 to about 10, a temperature of from about 32.degree.F to about 350.degree.F and a pressure of from about 200 psig to about 1000 psig with a catalyst of alumina having intimately combined therewith from about 2 to about 5 weight percent nickel and from about 1 to about 3 weight percent sulfur as a result of impregnation with nickel sulfate, said alumina being gamma, eta or a mixture thereof and said catalyst having been calcined at a temperature of from 750.degree.F to about 1150.degree.F in an inert oxygen-free, non-reducing atmosphere.

    Abstract translation: 提供了包含2至4个碳原子的轻质烯烃的二聚的方法,其包括以约0.1至约10的重时空速与约32°F至约350°F的温度接触, 约200psig至约1000psig的催化剂,其中氧化铝的催化剂与约2至约5重量%的镍和约1至约3重量%的硫紧密结合,因为硫酸镍浸渍,所述氧化铝为γ ,eta或其混合物,并且所述催化剂在惰性无氧,非还原气氛中在750°F至约1150°F的温度下煅烧。

    PROCESSES FOR PRODUCING CARBOXYLIC ACIDS OR ALKYL ESTERS

    公开(公告)号:US20240286988A1

    公开(公告)日:2024-08-29

    申请号:US18568913

    申请日:2022-06-02

    Abstract: The present invention relates generally to gas phase processes for producing carboxylic acids or alkyl esters. In one embodiment, a gas phase process for producing a carboxylic acid or an alkyl ester comprises (a) providing a catalyst support comprising deposits of cobalt thiocyanate on at least a portion of the catalyst support; (b) heating the catalyst support to convert the cobalt thiocyanate on the support to cobalt sulfide to form a supported cobalt sulfide catalyst; and (c) reacting alkene gas, steam or an alkanol gas, and a carbon-containing gas in the presence of the supported cobalt sulfide catalyst in a reactor to form a product stream, wherein the carbon-containing gas comprises carbon monoxide or a mixture of carbon monoxide and carbon dioxide, wherein when steam is used as a reactant, the product stream comprises a carboxylic acid, and wherein when alkanol gas is used as a reactant, the product stream comprises an alkyl ester.

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