Process for the reduction of the sodium hydroxide losses of the
Bayer-type alumina production
    3.
    发明授权
    Process for the reduction of the sodium hydroxide losses of the Bayer-type alumina production 失效
    降低拜耳型氧化铝生产的氢氧化钠损失的方法

    公开(公告)号:US4486393A

    公开(公告)日:1984-12-04

    申请号:US469140

    申请日:1983-02-23

    IPC分类号: C01F7/06

    CPC分类号: C01F7/066

    摘要: The invention relates to a process for the reduction of sodium hydroxide losses of the Bayer-cycle by modified causticization of red mud which comprisessubjecting an optionally previously concentrated red mud slurry led off from the red mud washing line by ramification and containing a liquid phase which has a concentration of 5-40 g. caustic Na.sub.2 0/1. caustification by adjusting the lime content expressed as CaO through addition of lime or lime milk to 1-3.2 moles per mole Al.sub.2 O.sub.3, preferably to 2-2.5 moles per mole Al.sub.2 O.sub.3, related to the total Al.sub.2 O.sub.3 content of the slurry;stirring the slurry for 0.3-5 hours at a temperature of 70.degree.-110.degree. C., preferably at 80.degree.-100.degree. C.;adding to the slurry 3-4 moles, preferably 3.2-3.4 moles, of soda related to 1 mole of the originally dissolved Al.sub.2 O.sub.3, and continuing the stirring for 1-4 hours at 80.degree.-100.degree. C., preferably at a temperature of 90.degree.-95.degree. C.;if necessary causticizing the excess of soda by adding lime or lime milk by methods known per se;if desired concentrating the slurry thus obtained and re-introducing the liquid phase thereof to the red mud washing unit which corresponds to the sodium hydroxide content thereof;and re-entering the slurry to the red mud washing line.The advantages of the process of the present invention are as follows: the sodium hydroxide losses of different origin of Bayer-type alumina production are recovered by a single operation step, the process is simple, requires no expensive equipment and is economical.

    摘要翻译: 本发明涉及通过红泥的改性苛化来降低拜耳 - 循环的氢氧化钠损失的方法,该方法包括将由红泥浆清洗线引出的任选预先浓缩的红泥浆经分散和含有液相 浓度为5-40g。 苛性钠Na20 / 1。 通过将石灰或石灰乳添加为1-3.2摩尔/摩尔Al 2 O 3,优选为2-2.5摩尔/摩尔Al 2 O 3,通过调整CaO表示的石灰含量与浆料的总Al 2 O 3含量相关; 在70-110℃,优选在80℃-100℃下搅拌该浆料0.3-5小时。 向浆料中加入3-4摩尔,优选3.2-3.4摩尔与1摩尔原始溶解的Al 2 O 3有关的苏打,并在80℃-100℃下,优选在 90°-95℃。 如果需要,通过本身已知的方法加入石灰或石灰乳来苛化苏打水; 如果需要浓缩由此获得的浆料并将其液相再引入对应于其氢氧化钠含量的红泥洗涤单元; 并将浆料重新进入红泥清洗线。 本发明方法的优点如下:通过单一操作步骤回收拜耳式氧化铝生产不同来源的氢氧化钠损失,工艺简单,不需要昂贵的设备,而且经济。

    Process for the electrolytic recovery of gallium and/or alkali metals
    4.
    发明授权
    Process for the electrolytic recovery of gallium and/or alkali metals 失效
    镓和/或碱金属的电解回收方法

    公开(公告)号:US4012298A

    公开(公告)日:1977-03-15

    申请号:US612803

    申请日:1975-09-12

    CPC分类号: C25C1/04 C25C1/22

    摘要: A method of electrolytically recovering gallium and/or alkali metals from alkali metal solutions, preferably aluminate (sodium aluminate) liquors from aluminate production in which the gallium or alkali metal is electrolytically deposited on a mercury layer of the thickness of several microns applied to a metallic support which is more electronegative than mercury (preferably copper) by amalgamation or cementation from a mercury salt solution. The deposition of metals is carried out at a temperature below 50.degree. C and the cathode is then treated with a solvent, e.g. mercury or water, to remove the deposited elements.

    摘要翻译: 从铝酸盐生产的碱金属溶液,优选铝酸盐(铝酸钠)液中电解回收镓和/或碱金属的方法,其中将镓或碱金属电解沉积在几微米厚度的汞层上,施加到金属 通过汞盐溶液的合并或胶结而比汞(优选铜)更负电荷的载体。 金属的沉积在低于50℃的温度下进行,然后用溶剂处理阴极,例如, 汞或水,以去除沉积的元素。

    Process and apparatus for the integral optical examinations of damaging
mechanical stresses in the bottom-part of bottles and hollow glassware
    5.
    发明授权
    Process and apparatus for the integral optical examinations of damaging mechanical stresses in the bottom-part of bottles and hollow glassware 失效
    瓶和中空玻璃器皿底部损坏机械应力整体光学检查的工艺和设备

    公开(公告)号:US4908507A

    公开(公告)日:1990-03-13

    申请号:US256155

    申请日:1988-10-07

    IPC分类号: G01N21/23 G01N21/90

    CPC分类号: G01N21/90 G01N21/23

    摘要: The invention relates to a process for the integral optical examination of damaging mechanical stresses arising in the bottom-part of bottles and hollow glasswares. In accordance with the process the bottom-part of the glasses/bottles/is illuminated with a light bundle from the mouth, the cross-sectional intensity distribution is controlled by the aid of a light bundle with predetermined angle of aperture, with the integral optical system the bottom is illuminated with a light with quasi-homogeneous intensity. The passing light is modulated and led into the photodetector, the signal of which is analysed through a band-filter. The invention includes the apparatus for the implement of the process according to the invention. The apparatus has a laser (1), a laser bundle (2) emitted therefrom, a polar filter (3), connected with a light-chopper (4), a bundle stretcher consisting of the collecting lenses (5,6), the diaphragm (8), a polar filter (14) and the photodetector (15).

    摘要翻译: 本发明涉及一种用于整体光学检查在瓶和中空玻璃制品底部产生的损伤机械应力的方法。 根据该过程,玻璃/瓶子的底部部分被来自嘴部的光束照射,通过具有预定角度的光圈的光束来控制横截面强度分布,其中积分光学 系统底部用准均匀强度的光照射。 通过的光被调制并引导到光电检测器中,其信号通过带滤波器分析。 本发明包括用于实现根据本发明的方法的装置。 该装置具有激光器(1),从其发射的激光束(2),与光切断器(4)连接的极性滤光器(3),由收集透镜(5,6)组成的束拉伸机, 隔膜(8),极性滤光器(14)和光电检测器(15)。

    Production of toxin binding biopolymers, use thereof
    6.
    发明授权
    Production of toxin binding biopolymers, use thereof 失效
    毒素结合生物聚合物的生产,其用途

    公开(公告)号:US5807844A

    公开(公告)日:1998-09-15

    申请号:US537922

    申请日:1995-11-01

    摘要: A method for production of toxin-binding, non-toxic, modified, biopolymers and the use thereof for the treatment of septic shock, infections and toxic states and to the use of them as carriers for transportation of biologically or therapeutically important materials (enzymes or drugs) into phagocytes or cells bearing Fc and complement receptors and as a natural source of energy for cells. The toxin binding, non-toxic structurally modified biopolymers are prepared by the reaction of polysaccharides containing alpha 1,4 or 1,6 linkages with glucose-1-phosphate catalyzed by glycogen phosphorylase enzyme in a buffer solution at pH 6.8-7.4 at a temperature of 20.degree.-30.degree. C. and by the separation of the obtained biopolymers in a well-known manner.

    摘要翻译: PCT No. PCT / HU94 / 00011 Sec。 371日期:1995年11月1日 102(e)1995年11月1日日期PCT提交1994年5月6日PCT公布。 第WO94 / 26921号公报 日期1994年11月24日一种用于生产毒素结合,无毒,改良的生物聚合物的方法及其用于治疗败血性休克,感染和毒性状态的用途,以及其用作生物或治疗运输的载体 重要的材料(酶或药物)进入吞噬细胞或携带Fc和补体受体的细胞,并作为细胞的天然能量来源。 毒素结合的,无毒的结构改性的生物聚合物是通过使含有α1,4或1,6键的多糖与糖原磷酸化酶催化的葡萄糖-1-磷酸在pH 6.8-7.4的缓冲溶液中在温度 并且以公知的方式分离得到的生物聚合物。

    Method for stabilizing clay minerals during oil exploitation by steam
injection
    7.
    发明授权
    Method for stabilizing clay minerals during oil exploitation by steam injection 失效
    通过蒸汽喷射在石油开采过程中稳定粘土矿物的方法

    公开(公告)号:US4875809A

    公开(公告)日:1989-10-24

    申请号:US187376

    申请日:1988-04-28

    IPC分类号: C09K8/592 C09K8/60 E21B43/24

    CPC分类号: C09K8/592 C09K8/607

    摘要: The present invention relates to a new process for stabilizing the clay minerals in reservoir rocks containing oil, in particular in rock comprising sandstones, sand, or marliceous sandstones as well as eliminating the electrostatic dispersion and swelling of the clays when steam injection is used for mineral oil exploitation. According to the process, cations capable of stabilizing the reservoir rock, having a hydrated diameter of 0.13 to 0.15 nm, preferably potassium and/or ammonium and/or zirconium ions are introduced in the form of a 0.01 to 5.0 N aqueous solution or in the form of a vapor mixture or a mixture of steam and gas(es).

    摘要翻译: 本发明涉及一种用于稳定包含油的储层岩石中的粘土矿物的新方法,特别是在包含砂岩,砂或砂岩砂岩的岩石中,以及当蒸汽注入用于矿物时,消除了粘土的静电分散和溶胀 石油开采。 根据该方法,能够稳定储层岩石的阳离子,其水合直径为0.13至0.15nm,优选钾和/或铵和/或锆离子以0.01至5.0N的水溶液形式或以 蒸汽混合物的形式或蒸气和气体的混合物。

    Automated wet sieving apparatus
    8.
    发明授权
    Automated wet sieving apparatus 失效
    自动湿筛设备

    公开(公告)号:US4116824A

    公开(公告)日:1978-09-26

    申请号:US741327

    申请日:1976-11-12

    IPC分类号: B03B5/18 B07B1/55 B07B1/46

    CPC分类号: B07B1/55 B03B5/18

    摘要: An automated wet sieving apparatus and process are provided comprising a wetting liquid distributor which is coupled by eccentric disks to a motor which drives the distributor in an orbital path for supplying the liquid onto a sieve. Means are provided for creating alternating vacuum and pressure below the sieve. The vacuum draws undersized particles whose size is being determined through the sieve and the pressure loosens blinding particles from the sieve. Preferably, the sieve is cyclically tilted as the wetting liquid is being distributed onto the sieve.

    摘要翻译: 提供了一种自动化湿式筛分设备和方法,其包括润湿液体分配器,所述润湿液体分配器通过偏心圆盘耦合到马达,所述马达在用于将液体供应到筛上的轨道中驱动分配器。 提供了用于在筛子下方产生交替的真空和压力的装置。 真空吸取尺寸通过筛子确定的尺寸过小的颗粒,并且压力从筛上松开致盲颗粒。 优选地,随着润湿液体分布到筛上,筛子被循环地倾斜。