Use of colloidal silica sol as an auxiliary for catalysts
    1.
    发明授权
    Use of colloidal silica sol as an auxiliary for catalysts 失效
    使用胶体硅溶胶作为催化剂的辅助剂

    公开(公告)号:US5294583A

    公开(公告)日:1994-03-15

    申请号:US890603

    申请日:1992-09-14

    IPC分类号: B01J21/12 B01J37/00 B01J21/08

    CPC分类号: B01J21/12 B01J37/0009

    摘要: The invention relates to the use of colloidal, stabilized silica sol as an auxiliary for stabilizing and/or increasing the activity of catalysts which show a tendency towards activity-reducing sintering under high-temperature conditions.

    摘要翻译: PCT No.PCT / EP90 / 02289 371日期:1992年9月14日 102(e)日期1992年9月14日PCT 1990年12月21日PCT PCT。 WO91 / 10509 PCT出版物 日期:1991年7月25日。本发明涉及胶态稳定二氧化硅溶胶作为辅助剂用于稳定和/或提高催化剂活性的用途,其在高温条件下显示出降低活性的烧结趋势。

    Process for obtaining a pepper extract with insecticidal activity
    3.
    发明授权
    Process for obtaining a pepper extract with insecticidal activity 失效
    获得具有杀虫活性的胡椒提取物的方法

    公开(公告)号:US4820517A

    公开(公告)日:1989-04-11

    申请号:US878886

    申请日:1986-07-24

    摘要: An insecticidally active fraction is obtained from black pepper by a process comprising the following steps:(a) extraction of black pepper in ground form with CO.sub.2 at 30 to 70.degree. C. and 150 to 500 bar;(b) removal of sharp tasting fractions therein in a first expansion step at 25 to 35.degree. C. and 70 to 150 bar;(c) removal of an oily fraction containing the insecticidally active components as well as most of the essential oils in a second expansion step at 15 to 30.degree. C. and 40 to 70 bar;(d) removal of essential oils by steam distillation, and if desired;(e) hydrogenation of the insecticidally active components.

    摘要翻译: PCT No.PCT / EP85 / 00333 Sec。 一九八六年七月二十四日 102(e)日期1986年7月24日PCT提交1985年7月6日PCT公布。 出版物WO86 / 01981 日期:1986年4月10日。通过包括以下步骤的方法从黑胡椒获得杀虫活性级分:(a)在30至70℃和150至500巴下用CO 2萃取研磨形式的黑胡椒; (b)在25至35℃和70至150巴的第一膨胀步骤中除去其中的锋利品尝成分; (c)在15至30℃和40至70巴的第二膨胀步骤中除去含有杀虫活性成分的油性馏分以及大部分精油; (d)通过蒸汽蒸馏除去精油,如果需要; (e)杀虫活性组分的氢化。

    Method for emptying fixed-bed reactors
    5.
    发明授权
    Method for emptying fixed-bed reactors 失效
    清空固定床反应堆的方法

    公开(公告)号:US06619571B1

    公开(公告)日:2003-09-16

    申请号:US09731965

    申请日:2000-12-07

    IPC分类号: B02C1912

    摘要: A method for the removal of a spent catalyst from a fixed-bed reactor is disclosed, wherein a suction hose, in which a high pressure hose comprising a high-pressure nozzle is integrated, is introduced into the reactor, the catalyst is then size-reduced by water under high pressure passed through the nozzle, the catalyst/water mixture is removed under suction and is optionally collected in a separator.

    摘要翻译: 公开了一种从固定床反应器中除去废催化剂的方法,其中将包含高压喷嘴的高压软管整合在一起的吸入软管被引入反应器中, 在通过喷嘴的高压下被水还原,在抽吸下除去催化剂/水混合物,并任选地收集在分离器中。

    Hydrogenation process
    6.
    发明授权
    Hydrogenation process 失效
    氢化过程

    公开(公告)号:US5324871A

    公开(公告)日:1994-06-28

    申请号:US920439

    申请日:1992-10-21

    CPC分类号: C07C29/149 Y02P20/52

    摘要: The invention relates to a process for the hydrogenation of native fats, oils and fat derivatives, such as fatty acids and fatty acid esters, to fatty alcohols in a fixed-bed reactor, more particularly in co-current, hydrogen being recirculated in a stoichiometric excess, more particularly in an excess of 10 to 100 fold, and the fat, oil or fat derivative passing through the reactor only once. To minimize the specific hydrogen demand without having to accept significant losses in regard to specific reactor load, product selectivity and catalyst life, the hydrogen is passed successively through at least two fixed-bed reactors 4,10 without the gas issuing from the reactors 4 and entering the following reactors 10 being cooled and the fat, oil or fat derivative is simultaneously introduced into the reactors 4,10.

    摘要翻译: PCT No.PCT / EP91 / 00277 Sec。 371日期:1992年10月21日 102(e)日期1992年10月21日PCT 1991年2月13日提交PCT公布。 WO91 / 13050 PCT出版物 日本1991年9月5日。本发明涉及一种在固定床反应器中将天然脂肪,油脂和脂肪衍生物如脂肪酸和脂肪酸酯氢化成脂肪醇的方法,更具体地说是在同流 ,氢气以化学计量过量再循环,更特别是超过10-100倍,通过反应器的脂肪,油或脂肪衍生物只有一次。 为了最小化特定的氢需求,而不必在特定的反应器负载,产物选择性和催化剂寿命方面接受显着的损失,氢气依次通过至少两个固定床反应器4,10而不从反应器4发出气体, 进入下列反应器10被冷却,同时将脂肪,油或脂肪衍生物引入反应器4,10。

    Process for the catalytic hydrogenation of liquid fatty acid methyl
esters
    7.
    发明授权
    Process for the catalytic hydrogenation of liquid fatty acid methyl esters 失效
    液体脂肪酸甲酯的催化加氢方法

    公开(公告)号:US5180858A

    公开(公告)日:1993-01-19

    申请号:US768882

    申请日:1991-10-24

    摘要: The invention relates to a process for the catalytic hydrogenation of liquid saturated and unsaturated C.sub.6-24 fatty acid methyl esters for the production of saturated fatty alcohols and methanol in the presence of gaseous hydrogen and hydrogenation catalysts under pressures of 50 to 300 bar and at temperatures in the range from 160.degree. to 250.degree. C., characterized in that the hydrogenation reaction is carried out in a tube bundle reactor in which isothermal conditions are established by a cooling or heating fluid, the liquid phase and gas phase being passed together as a co-current trickle phase over catalyst packings in the individual tubes of the reactor without any back-mixing, and in that the load per unit volume of the reaction is between 0.2 and 2.5 liters starting material per liter reactor volume per hour and the load per unit area of each individual tube of the reactor is between 1.5 and 24 m.sup.3 starting material per m.sub.2 reactor cross-section per hour and the reaction parameters of temperature and pressure and correspondingly adapted to the particular activity of the catalyst.

    摘要翻译: PCT No.PCT / EP90 / 00597 Sec。 371日期1991年10月24日第 102(e)日期1991年10月24日PCT 1990年4月17日PCT PCT。 出版物WO90 / 12775 1990年11月1日,本发明涉及一种用于在气态氢气和氢化催化剂存在下生产饱和脂肪醇和甲醇的液体饱和和不饱和C6-24脂肪酸甲酯的催化氢化方法, 50至300巴,温度范围为160-250℃,其特征在于氢化反应在管束反应器中进行,其中等温条件通过冷却或加热流体,液相和 气相在反应器的各个管中的催化剂填料上作为电流滴流相通过,而没有任何反混合,并且每单位体积反应的负荷为每升反应器的原料0.2-2.5升 每小时的体积和反应器每个单独管的每单位面积的负荷在每平方米反应堆横截面每小时1.5至24立方米起始材料和原料 温度和压力的温度参数,并且相应地适应催化剂的特定活性。

    Process for producing fatty alcohols and C.sub.3 diols by catalytic
hydrogenation
    9.
    发明授权
    Process for producing fatty alcohols and C.sub.3 diols by catalytic hydrogenation 失效
    通过催化氢化生产脂肪醇和C3二醇的方法

    公开(公告)号:US4942266A

    公开(公告)日:1990-07-17

    申请号:US326185

    申请日:1989-03-17

    CPC分类号: C07C29/60 C07C29/149

    摘要: A process for the catalytic hydrogenation of liquid fatty acid triglycerides and the simultaneous recovery of fatty alcohols and C.sub.3 diols in the presence of gaseous hydrogen and hydrogenation catalysts under pressures of from 50 to 300 bar and at temperatures in the range from 160.degree. to 250.degree. C., to produce fatty alcohols in at least 99% of the theoretical yield and of 1,2-propanediol in at least 80% of the theoretical yield and a maximum paraffin content of 0.5% of the theoretical yield is disclosed. The hydrogenation reaction is carried out in a tube bundle reactor operated under isothermal conditions through a cooling or heating fluid, the liquid phase being passed as co-current trickle phase with the gaseous phase over catalyst packings in the individual reactor tubes without back-mixing, and in that the load per unit volume of the reactor is selected between 0.2 and 2.5 l starting material per 1 reactor volume per hour and the load per unit area of each individual reactor tube between 1.5 and 25 m.sup.3 starting material per m.sup.2 reactor cross-section per hour and the reaction parameters of temperature and pressure are adapted in accordance with the actual catalyst activity.

    摘要翻译: 一种在液体脂肪酸甘油三酯的催化氢化和在气态氢气和氢化催化剂存在下同时回收脂肪醇和C 3二醇的方法,其压力为50-300巴,温度为160-250℃。 在理论产率的至少80%中产生至少99%理论产率的脂肪醇和1,2-丙二醇,并且公开了理论产率的最大链烷烃含量为理论产率的0.5%。 氢化反应在通过冷却或加热流体在等温条件下操作的管束反应器中进行,液相通过与各相反应器管中的催化剂填料上的气相作为同时滴流相而不进行反混合, 反应器的每单位体积的负荷选择在每小时每1个反应器体积的0.2-2.5升起始材料之间,每个反应器管的每单位面积的载荷在每平方米反应器横截面为1.5至25立方米起始材料之间 每小时,温度和压力的反应参数根据实际的催化剂活性进行调整。

    Process for the direct hydrogenation of butterfat
    10.
    发明授权
    Process for the direct hydrogenation of butterfat 失效
    乳脂直接氢化工艺

    公开(公告)号:US4954664A

    公开(公告)日:1990-09-04

    申请号:US470428

    申请日:1990-01-25

    IPC分类号: C07C29/149 C11C3/12

    摘要: A process for the catalytic hydrogenation of butterfat where non-deacidified butterfat is continuously reacted with hydrogen under pressures of from 20 to 300 bar and at temperatures of from 180.degree. to 250.degree. C. with molar ratios of hydrogen to fatty acid residue in the butterfat of from 10:1 to 500:1. The reaction is carried out over catalysts which contain from 30 to 40% by weight copper, from 23 to 30% by weight chromium, from 1 to 10% by weight manganese, from 1 to 10% by weight silicon, and from 1 to 7% by weight barium. The percentages by weight in each case are based on the total oxidic mass of the catalyst. Other transition metals, especially zirconium and cerium, are additionally incorporated into the catalyst. The metals in the catalyst are converted to their oxides by calcination. The catalyst is converted into shaped particulate or granulated elements with from 1 to 10% by weight of at least one binder in addition to 1 to 10% by weight graphite. The catalyst is activated with hydrogen or a hydrogen-containing gas mixture.The reaction products include alcohols, oxo- and hydroxyfatty alcohols corresponding to the natural fatty acid composition of the butterfat and the desired, valuable product, propylene glycol. This process is advantageous since it eliminates the need for preseparation of the relatively short-chain fatty acids (or deacidification) of the butterfat prior to hydrogenation.

    摘要翻译: 一种用于催化加氢的方法,其中非脱酸乳脂在20-300巴的压力和180-250℃的温度下与氢气连续地与氢气与脂肪酸残余物的摩尔比连续地反应 为10:1至500:1。 反应在含有30-40重量%铜,23-30重量%铬,1-10重量%的锰,1-10重量%的硅和1至7的催化剂上进行 重量%的钡。 在每种情况下,重量百分比是基于催化剂的总氧化质量。 其他过渡金属,特别是锆和铈也被并入催化剂中。 通过煅烧将催化剂中的金属转化为它们的氧化物。 除了1至10重量%的石墨之外,催化剂转化为具有1-10重量%的至少一种粘合剂的成型颗粒或颗粒状元素。 催化剂用氢气或含氢气体混合物活化。 反应产物包括对应于乳脂的天然脂肪酸组合物和所需有价值的产物丙二醇的醇,氧代和羟基脂肪醇。 该方法是有利的,因为它消除了在氢化之前预先分离乳脂相对短链脂肪酸(或脱酸)的需要。