Process for working up municipal plastic waste materials by gasification
    1.
    发明授权
    Process for working up municipal plastic waste materials by gasification 失效
    通过气化处理市政塑料废料的工艺

    公开(公告)号:US5470361A

    公开(公告)日:1995-11-28

    申请号:US331364

    申请日:1994-10-27

    摘要: In the process for gasification of municipal waste plastic waste material pieces of about a 20 mm piece size are compressed and heated at a pressure of from 40 to 80 bar until at a temperature of from 230.degree. to 300.degree. C. to produce an HCl-containing gas and a plastic waste material containing less than 3000 mg of HCl per kg and the HCl-containing gas produced is washed with water to produce a hydrochloric acid solution. The plastic waste material is then heated further until at a temperature of from 400.degree. to 500.degree. C. to form a plastic melt having a viscosity of less than 300 cSt, advantageously less than 50 cSt. This plastic melt is gasified at a pressure of 4 bar with oxygen in a flame reaction to form a crude gas containing a preponderant proportion of CO in relation to CO.sub.2 in a gasification chamber having a central temperature of about 1600.degree. C. The crude gas is withdrawn from the gasification reactor at a temperature of 1300.degree. to 1600.degree. C., quenched with a water spray to cool it until at a temperature of 700.degree. to 900.degree. C. and then further cooled by indirect heat transfer in a heat exchanger producing steam until at a temperature of from 220.degree. to 300.degree. C. The cooled crude gas is dedusted until a dust content of less than 20 mg/Nm.sup.3 of crude gas is reached and the dedusted gas is washed and desulfurized to form the product gas.

    摘要翻译: 在城市废塑料废气的气化过程中,将大约20毫米片尺寸的废料在40至80巴的压力下压缩和加热至230℃至300℃的温度,以产生HCl- 含有气体和每千克含有少于3000毫克HCl的塑料废料,所生成的含HCl气体用水洗涤以产生盐酸溶液。 然后将塑料废料进一步加热至400℃至500℃的温度,以形成粘度小于300cSt,有利地小于50cSt的塑料熔体。 该塑料熔体在4巴的压力下与氧气在火焰反应中气化,形成一种粗气体,其在中心温度为约1600℃的气化室中含有相对于CO 2的CO优选比例。粗气体为 在1300℃至1600℃的温度下从气化反应器中取出,用水喷雾骤冷至700℃至900℃的温度,然后通过间接传热在热交换器中进一步冷却,产生 蒸汽直至温度为220〜300℃。将冷却的粗气除尘至达到小于20mg / Nm3的原油的粉尘含量,并将除尘气体洗涤并脱硫形成产物气体。

    Installation for powder coating of articles
    2.
    发明授权
    Installation for powder coating of articles 失效
    安装粉末涂料的物品

    公开(公告)号:US07399362B2

    公开(公告)日:2008-07-15

    申请号:US10908013

    申请日:2005-04-25

    IPC分类号: B05C19/00 B05B7/14 B05B7/06

    摘要: An installation for powder coating articles, in particular vehicle bodies, comprises a coating booth, in which a plurality of application devices for the powder coating may be arranged. The articles to be coated are located during the coating process on a rotating rotary stand. Application devices located in various angular positions relative to the axis of the rotary stand may be charged with powder coatings of different colours. A collecting hopper is located at the bottom of the coating booth, the outlet opening of which collecting hopper may be brought as desired into connection with various recovery devices for powder overspray. To coat articles of different colours, the application devices charged with powder coating of the appropriate colour are activated in each case and the recovery device which collects the powder of the corresponding colour is brought into connection with the outlet opening of the collecting hopper.

    摘要翻译: 用于粉末涂料制品,特别是车身的装置包括涂覆室,其中可以布置多个用于粉末涂料的涂布装置。 待涂覆的物品在涂覆过程中位于旋转的转台上。 位于相对于旋转架的轴线的各种角度位置的应用装置可以装有不同颜色的粉末涂层。 收集料斗位于涂料室的底部,其出料口可根据需要与各种用于粉末喷涂的回收装置连接。 为了涂覆不同颜色的物品,在各种情况下,充满了适当颜色的粉末涂料的应用装置被激活,并且收集相应颜色的粉末的回收装置与收集料斗的出口连接。

    INSTALLATION FOR POWDER COATING OF ARTICLES
    3.
    发明申请
    INSTALLATION FOR POWDER COATING OF ARTICLES 失效
    安装粉末涂料的文章

    公开(公告)号:US20050247263A1

    公开(公告)日:2005-11-10

    申请号:US10908013

    申请日:2005-04-25

    摘要: An installation for powder coating articles, in particular vehicle bodies, comprises a coating booth, in which a plurality of application devices for the powder coating may be arranged. The articles to be coated are located during the coating process on a rotating rotary stand. Application devices located in various angular positions relative to the axis of the rotary stand may be charged with powder coatings of different colours. A collecting hopper is located at the bottom of the coating booth, the outlet opening of which collecting hopper may be brought as desired into connection with various recovery devices for powder overspray. To coat articles of different colours, the application devices charged with powder coating of the appropriate colour are activated in each case and the recovery device which collects the powder of the corresponding colour is brought into connection with the outlet opening of the collecting hopper.

    摘要翻译: 用于粉末涂料制品,特别是车身的装置包括涂覆室,其中可以布置多个用于粉末涂料的涂布装置。 待涂覆的物品在涂覆过程中位于旋转的转台上。 位于相对于旋转架的轴线的各种角度位置的应用装置可以装有不同颜色的粉末涂层。 收集料斗位于涂料室的底部,其出料口可根据需要与各种用于粉末喷涂的回收装置连接。 为了涂覆不同颜色的物品,在各种情况下,充满了适当颜色的粉末涂料的应用装置被激活,并且收集相应颜色的粉末的回收装置与收集料斗的出口连接。

    Circuit arrangement for determining the polarity and magnitude of the
load current in a reversible d-c controller or chopper
    5.
    发明授权
    Circuit arrangement for determining the polarity and magnitude of the load current in a reversible d-c controller or chopper 失效
    用于确定可逆d-c控制器或斩波器中的负载电流的极性和幅度的电路装置

    公开(公告)号:US4494181A

    公开(公告)日:1985-01-15

    申请号:US449757

    申请日:1982-12-14

    IPC分类号: H02P7/03 H02M7/02

    CPC分类号: H02P7/04

    摘要: A circuit arrangement for determining the polarity and the magnitude of the load current in a reversible d-c controller includes a bridge circuit comprising two pairs of bridge arms connected to opposite terminals of the voltage supply bus. Each pair of bridge arms connected to the same side of the supply bus form a bypass circuit connected across the load. Two diagonally disposed bridge arms each contain a primary winding of a current transformer having two primary windings connected in opposite winding phase. Load current normally flows through either pair of diagonally disposed bridge arms, but during pauses in the load drive, circulates in one of the two bypass circuits. Electronic switches in each of the bridge arms are controlled so that the load current circulates in successive bypass periods in an alternating pattern in the two bypass circuits. When current flows in a bypass circuit, a phase sensitive voltage is induced in the single secondary of the current transformer. Signals from the electronic switches in one of the bypass circuits are fed via digital logic circuitry to a further electronic switch which causes an operational amplifier to invert pulses from that bypass circuit alone. A pulse train having a polarity corresponding to the polarity of the load current is thereby obtained. In a further embodiment, a sample-and-hold stage for determining the magnitude and polarity of the load current is provided.

    摘要翻译: 用于确定可逆d-c控制器中的负载电流的极性和幅度的电路装置包括桥接电路,其包括连接到电压供应总线的相对端子的两对桥臂。 连接到电源总线同一侧的每对桥臂形成一个连接在负载上的旁路电路。 两个对角布置的桥臂各自包含电流互感器的初级绕组,其具有以相反绕组相连接的两个初级绕组。 负载电流通常流过任一对对角布置的桥臂,但是在负载驱动中的暂停期间,在两个旁路电路之一中循环。 控制每个桥臂中的电子开关,使得负载电流在两个旁路电路中以交替模式在连续的旁路周期中循环。 当电流在旁路电路中流动时,在电流互感器的单次级中感应出相敏电压。 来自旁路电路之一的电子开关的信号通过数字逻辑电路馈送到另一个电子开关,使得运算放大器单独地反转来自旁路电路的脉冲。 由此获得具有与负载电流的极性对应的极性的脉冲串。 在另一实施例中,提供了用于确定负载电流的大小和极性的采样和保持级。

    REMOVAL OF SILICON FROM BRINE
    6.
    发明申请
    REMOVAL OF SILICON FROM BRINE 失效
    从铜中去除硅

    公开(公告)号:US20110089117A1

    公开(公告)日:2011-04-21

    申请号:US12735233

    申请日:2008-12-23

    IPC分类号: B01D21/00

    CPC分类号: C01D3/16 C25B1/34 C25B15/08

    摘要: A process for removing silicon compounds from aqueous NaCl brine includes, first, adjusting a weak brine to a pH value of less than 3 with hydrochloric acid. Iron(III) chloride or other trivalent iron ions are added to the acidified weak brine, the obtained weak brine is then continuously fed to a stirred dissolution vessel which contains undissolved salt in addition to brine. Fresh salt is charged batchwise and intermittently to the dissolution vessel to produce strong brine. The obtained strong brine is fed to a stirred buffer vessel, the pH value in this buffer vessel being maintained at a level ranging from 5 to 8. A strong-brine flow is continuously withdrawn from the buffer vessel and filtered, and the filtrate containing the added iron and silicon is discharged. Also a system for carrying out this process includes: a dissolution vessel for salt, a stirrer in the dissolution vessel, a feed device for batchwise feeding salt to the dissolution vessel, a point for feeding weak brine to the dissolution vessel, points for feeding hydrochloric acid and iron(III) chloride to the weak brine supply line, a buffer vessel for strong brine, a stirrer in the buffer vessel, a flow connection between the dissolution vessel and the buffer vessel, a filter having an outlet for strong brine and a withdrawing device for filter cake, a discharge port and a device for conveying strong brine from the buffer vessel to the filter.

    摘要翻译: 从NaCl水溶液中除去硅化合物的方法首先用盐酸调节弱盐水至pH值小于3。 向酸化的弱盐水中加入氯化铁(III)或其他三价铁离子,然后将得到的弱盐水连续加入到除盐水之外含有未溶解的盐的搅拌溶解容器中。 将新鲜盐分批并间歇地加入到溶解容器中以产生强盐水。 将获得的强盐水加入到搅拌的缓冲容器中,该缓冲容器中的pH值保持在5至8的水平。强盐水流从缓冲容器中连续取出并过滤, 添加铁和硅排出。 此外,用于进行该方法的系统还包括:用于盐的溶解容器,溶解容器中的搅拌器,用于将盐分批供入溶解容器的进料装置,用于将弱盐水供入溶解容器的点, 氯化氢和氯化铁(III)加入到弱盐水供应管线中,用于强盐水的缓冲容器,缓冲容器中的搅拌器,溶解容器和缓冲容器之间的流动连接,具有强盐水出口的过滤器和 用于滤饼的抽出装置,排出口和用于将强盐水从缓冲容器输送到过滤器的装置。

    Process for purifying an aqueous methyldiethanolamine solution
    8.
    发明授权
    Process for purifying an aqueous methyldiethanolamine solution 失效
    纯化甲基二乙醇胺水溶液的方法

    公开(公告)号:US5607594A

    公开(公告)日:1997-03-04

    申请号:US523479

    申请日:1995-09-05

    IPC分类号: B01D53/14 B01J41/04 C02F1/42

    摘要: In the process for purifying an aqueous MDEA-solution the formate content of the MDEA-solution circulated in a main stream between the absorber and desorber of a hydrogen sulfide wash unit for gas produced by gasification of a carbonaceous material, e.g. coal, is measured. A partial stream of MDEA-solution is withdrawn from the main stream, passed over an ion exchange medium which removes some formate present to form a partially purified partial stream and subsequently the purified partial stream is returned to the main stream. The amount of the withdrawal from the main stream is controlled so that the formate content of the main stream is maintained between 10 and 30 g/l. Only from 0.5 to 0.08% by volume need be withdrawn from the main stream to form the partial stream. The ion exchange medium can be regenerated with a hydroxide-containing solution, which is subsequently fed to an ammonia separator column of a hydrogen sulfide wash apparatus.

    摘要翻译: 在MDEA水溶液的纯化过程中,MDEA溶液的甲酸盐含量在用于通过气化碳质材料产生的气体的硫化氢洗涤单元的吸收器和解吸器之间的主流中循环。 煤炭,被测量。 将MDEA-溶液的一部分流从主流中取出,通过离子交换介质,该离子交换介质去除某些甲酸盐以形成部分纯化的部分流,随后将纯化的部分流返回到主流。 控制从主流提取的量,使得主流的甲酸盐含量保持在10至30g / l之间。 需要从主流中取出0.5〜0.08体积%以形成部分流。 离子交换介质可以用含氢氧化物溶液再生,随后将其进料到硫化氢洗涤装置的氨分离塔中。

    Filler-fortified polyalkyleneterephthalate molding compositions
    10.
    发明授权
    Filler-fortified polyalkyleneterephthalate molding compositions 失效
    填料强化聚对苯二甲酸亚烷基酯成型组合物

    公开(公告)号:US4163002A

    公开(公告)日:1979-07-31

    申请号:US808413

    申请日:1977-06-20

    CPC分类号: C08K3/0033

    摘要: A process for preparing a filler-fortified polyalkyleneterphthalate molding composition which comprises mixing a filler with a precondensate of poly-(1,4-butylene)-terephthalate and/or poly-(1,3-propylene)-terephthalate, forming the resultant mixture into a shape and thereafter polymerizing the precondensate by solid-phase condensation under solid-phase condensation conditions; a molding composition prepared by such a process comprising poly-(1,4-butylene)-terephthalate and/or poly-(1,3-propylene)-terephthalate in an amount of 20 to 98 weight percent and 2 to 80 weight percent of a fortifying filler, the amounts based upon the combined amount of polyester and fortifying filler; a shaped object prepared from molding such a molding composition and the process for molding such a molding composition into a molded shaped article.

    摘要翻译: 一种制备填料强化聚烷基邻苯二甲酸酯模塑组合物的方法,其包括将填料与聚(1,4-丁烯) - 对苯二甲酸酯和/或聚(1,3-丙烯) - 对苯二甲酸酯的预缩合物混合,形成所得混合物 然后在固相冷凝条件下通过固相冷凝聚合预缩合物; 通过这样一种方法制备的模制组合物,其包含20-98重量%和2-80重量%的聚 - (1,4-丁烯) - 对苯二甲酸酯和/或聚((1,3-丙烯) - 对苯二甲酸酯) 强化填料,基于聚酯和强化填料的组合量的量; 通过模制这种模制组合物制备的成形物以及将这种模塑组合物模制成模塑成型制品的方法。