Process for recovering heavy metal ions or heavy metal ions and halogen
values from solutions comprising a lower aliphatic monocarboxylic acid
    1.
    发明授权
    Process for recovering heavy metal ions or heavy metal ions and halogen values from solutions comprising a lower aliphatic monocarboxylic acid 失效
    从包含低级脂族一元羧酸的溶液中回收重金属离子或重金属离子和卤素值的方法

    公开(公告)号:US4238294A

    公开(公告)日:1980-12-09

    申请号:US928980

    申请日:1978-07-28

    摘要: A process for recovering heavy metal ions or heavy metal ions and halogen values from a solution comprising a lower aliphatic monocarboxylic acid, which comprises the steps of:(1) contacting a lower aliphatic carboxylic acid solution containing heavy metal ions or heavy metal ions and halogen values with an anion exchange resin, at least 60% of the ion-exchange groups of said anion exchange resin being in the bromide or chloride state, while the water concentration in the lower aliphatic monocarboxylic acid solution has been adjusted to a level lower than 20% by weight, thereby to adsorb the heavy metal ions or the heavy metal ions and the halogen values on the anion exchange resin; and(2) desorbing the adsorbed heavy metal ions or the adsorbed heavy metal ions and the adsorbed halogen values from the anion exchange resin by elution with an eluent. In the present invention, the halogen values remaining in the lower aliphatic monocarboxylic acid solution which has been contacted with the anion exchange resin can be further recovered by contacting the solution with another anion exchange resin or subjecting the solution to distillation.

    摘要翻译: 从包含低级脂族一元羧酸的溶液中回收重金属离子或重金属离子和卤素值的方法,其包括以下步骤:(1)使含有重金属离子或重金属离子的低级脂族羧酸溶液和卤素 值为阴离子交换树脂,所述阴离子交换树脂的离子交换基团的至少60%处于溴化物或氯化物状态,而低级脂族一元羧酸溶液中的水浓度已经调节到低于20的水平 从而将重金属离子或重金属离子和卤素值吸附在阴离子交换树脂上; 和(2)通过用洗脱液洗脱,从阴离子交换树脂解吸所吸附的重金属离子或吸附的重金属离子和吸附的卤素值。 在本发明中,通过使该溶液与另一种阴离子交换树脂接触或使溶液进行蒸馏,可以进一步回收与阴离子交换树脂接触的残留在低级脂族一元羧酸溶液中的卤素值。

    Process for the production of a high purity terephthalic acid
    2.
    发明授权
    Process for the production of a high purity terephthalic acid 失效
    生产高纯度对苯二甲酸的方法

    公开(公告)号:US4230882A

    公开(公告)日:1980-10-28

    申请号:US907773

    申请日:1978-05-19

    IPC分类号: C07C51/265 C07C51/33

    CPC分类号: C07C51/265

    摘要: An improved process for the production of a high purity terephthalic acid by a liquid phase oxidation reaction of para-xylene by means of molecular oxygen or a molecular oxygen-containing gas in an aliphatic monocarboxylic acid solvent in the presence of a cobalt-manganese-bromine catalyst system, characterized in that as the cobalt-manganese-bromine catalyst system there is used a catalyst system of a specific composition at a specific concentration, and the liquid phase oxidation reaction is effected in the presence of acetaldehyde in addition to the cobalt-manganese-bromine catalyst system under relatively mild temperature (170.degree.-190.degree. C.) and pressure conditions while maintaining the water concentration in the reaction system at a specified low level. The terephthalic acid produced according to the process of the present invention is of so high a quality that it can be used for the direct production of a polyalkylene terephthalate from the acid and an alkylene glycol or ethylene oxide, which direct production does not need the preparation of an intermediate such as a methyl ester of terephthalic acid.

    摘要翻译: 在钴 - 溴 - 溴存在下,通过分子氧或分子氧气体在脂族一元羧酸溶剂中通过对二甲苯的液相氧化反应制备高纯度对苯二甲酸的改进方法 催化剂体系,其特征在于,作为钴 - 锰 - 溴催化剂体系,使用特定浓度的特定组成的催化剂体系,并且在乙醛存在下进行液相氧化反应,除了钴 - 锰 在170℃〜190℃的温度和压力条件下,将反应体系中的水浓度保持在规定的低水平。 根据本发明方法生产的对苯二甲酸具有如此高的质量,其可用于从酸和亚烷基二醇或环氧乙烷直接生产聚对苯二甲酸亚烷基酯,其直接生产不需要制备 的中间体如对苯二甲酸的甲酯。

    Isotope separation
    7.
    发明授权
    Isotope separation 失效
    同位素分离

    公开(公告)号:US4280984A

    公开(公告)日:1981-07-28

    申请号:US941505

    申请日:1978-09-11

    CPC分类号: B01D59/30 Y10S422/903

    摘要: An isotope separation apparatus comprises a plurality of independent developing units, each comprising 2 to 20 adsorbent-packed columns forming a continuous developing circuit or passageway, and the developing units are connected to at least one common main pipe for supplying an isotope mixture solution, a regenerating agent solution, or an eluent solution. Also, in a further embodiment the developing units are connected to common liquid-discharge main pipes.The separation or concentration of isotopes such as uranium isotopes, nitrogen isotopes, boron isotopes, etc., is performed by continuously developing the isotope mixture solution passed through the individual adsorbent-packed columns successively in each developing units.

    摘要翻译: 同位素分离装置包括多个独立的显影单元,每个显影单元包括形成连续显影回路或通道的2至20个吸附剂填充柱,显影单元连接至至少一个用于提供同位素混合溶液的公共主管, 再生剂溶液或洗脱液。 此外,在另一实施例中,显影单元连接到共同的排液主管。 通过在每个显影单元中连续地开发通过单独的吸附剂填充塔的同位素混合物溶液来进行同位素如铀同位素,氮同位素,硼同位素等的分离或浓缩。

    Protein adsorbent
    8.
    发明授权
    Protein adsorbent 失效
    蛋白质吸附剂

    公开(公告)号:US4246351A

    公开(公告)日:1981-01-20

    申请号:US088927

    申请日:1979-10-29

    摘要: A novel protein adsorbent consisting essentially of a porous copolymer obtained by copolymerizing a monomer mixture comprising at least one cyano group-containing monomer and at least one cross-linkable monomer, said copolymer having an average pore diameter (d) of from 40 A to 9,000 A and a total pore volume of from 0.05.sqroot.X ml to 1.5.sqroot.X ml per gram of the copolymer in a dry state, in which X designates the weight proportion of said cross-linkable monomer expressed in terms of the percent by weight based on the total monomers. The present porous copolymer adsorbent has a remarkably high protein adsorbing capacity. The adorbent can advantageously be used for various purposes such as purification and separation of proteins, and removal of proteins. Copolymer-protein composites obtained by adsorption of proteins on the present porous copolymer also are industrially useful and have a wide variety of applications.

    摘要翻译: 一种新型蛋白质吸附剂,其基本上由多孔共聚物组成,所述多孔共聚物通过使包含至少一个含氰基单体和至少一种可交联单体的单体混合物共聚而获得,所述共聚物的平均孔径(d)为40〜9,000 A,并且在干燥状态下每克共聚物的总孔体积为0.05×2×UV×1.5×2××××X,其中X表示所述可交联单体的重量比例,以基于 总单体。 本发明的多孔共聚物吸附剂具有非常高的蛋白质吸附能力。 该助剂可有利地用于各种目的,例如蛋白质的纯化和分离以及蛋白质的去除。 通过在本发明的多孔共聚物上吸附蛋白获得的共聚物 - 蛋​​白质复合物在工业上也是有用的并且具有广泛的应用。

    Vibration isolating proof device
    10.
    发明授权
    Vibration isolating proof device 失效
    防振隔离装置

    公开(公告)号:US07296650B2

    公开(公告)日:2007-11-20

    申请号:US11406329

    申请日:2006-04-19

    IPC分类号: B62D21/00

    CPC分类号: F16F13/101 F16F1/371

    摘要: An oscillation limiting mechanism 4 is integrally provided to an engine mount 3 (a vibration proof mount device) of a power plant P mounted on an automobile in a traverse mount fashion. Not only is a stopper metal member 40 in the shape of an inverted U letter disposed so as to cross over a mount body portion 30, but a stopper rubber 42 is formed so that it protrudes from the rear end of a casing of the mount body portion 30 toward the rear side of the vehicle body. Not only is a hollow portion 43 formed in the interior of the stopper rubber 42, but a metal core body 44 is also embedded in the stopper rubber 42 so as to be revolvable around an axis in the vehicle body traverse direction as if it were a link. With such a construction adopted, the stopper rubber 42 is shear-deformed in the vertical direction with comparative ease even in a state where it is brought into contact with the rear side leg portion 40c of a stopper metal member 40 and thereby receives a compressive force in the vehicle body longitudinal direction, and a dynamic spring constant of the mount 3 in the vertical direction does not rise so much even if the stopper acts in rapid acceleration or the like; therefore, enabling increase in surrounding sound in acceleration to be suppressed with a simple structure less of cost up while oscillation of the power plant P is limited in a similar way to that of a torque rod.

    摘要翻译: 振动限制机构4一体地设置在安装在汽车上的动力装置P的发动机支架3(防振装载装置)上,以横动安装方式。 止转金属构件40不仅以倒置的U字的形状设置成跨越安装主体部分30,而且形成止动橡胶42,使得其从安装体的壳体的后端突出 部分30朝向车体的后侧。 不仅形成在止动橡胶42的内部的中空部分43,而且金属芯体44也嵌入止动橡胶42中,以便能够围绕车体横向的轴线旋转,就好像它是 链接。 采用这样的结构,即使在与止动金属构件40的后侧脚部40c接触的状态下,止动橡胶42也能够在垂直方向上相对容易地被剪切变形,从而接受压缩 车身长度方向上的力,并且安装件3在垂直方向上的动态弹簧常数不会上升太多,即使止动器作用在快速加速等中; 因此,通过与发电厂P的振荡以与扭矩杆相同的方式限制发电站P的振荡,能够以简单的结构减少成本来抑制加速中的周围声音的增加。