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1. 发明授权

US5792441A Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream 失效
标题翻译：固定树脂床技术用于处理二氧化氯发生器流出物和进料流
公开(公告)号：US5792441A
公开(公告)日：1998-08-11
申请号：US729148
申请日：1996-10-11
申请人： Michael Paleologou , Rokhsareh Thompson , Craig J. Brown , Michael Sheedy
发明人： Michael Paleologou , Rokhsareh Thompson , Craig J. Brown , Michael Sheedy
IPC分类号： B09B3/00 , B01J39/04 , C01B11/02 , C01B17/90 , C01D5/16 , C02F1/44 , D21C9/14 , C01D5/00
CPC分类号： C01B17/904 , C01B11/023 , C01D5/16 , Y10S423/14
摘要： A process employing a fixed-resin bed Acid Retardation Unit (ARU) to separate spent acid from chlorine dioxide generators into a de-acidified sodium sulfate component and a purified sulfuric acid component. The de-acidified sodium sulfate produced is returned to the chemical recovery cycle of the kraft mill in place of acidic chlorine dioxide generator effluent thereby avoiding the destruction of alkalinity in pulp mill liquors. In addition, sulfuric acid is purified providing an opportunity for reuse in various mill applications, and/or concentrated and recycled to the generator. Alternatively, to avoid high evaporation costs, the purified acid can be used to regenerate a cation-exchange unit (CEU) used in the conversion of sodium chlorate to a sodium chlorate/chloric acid mixture which is fed to the generator in place of sodium chlorate and sulfuric acid. Using this approach, the sulfuric acid requirement of chlorine dioxide generators and, in turn, the amount of acidic generator effluent can be reduced. The process is applicable to both atmospheric and subatmospheric chlorine dioxide generators. In the latter case, the concentration of the purified sulfuric acid from the ARU or any other acid separation system can be increased by using a portion of it to dissolve the sodium sesquisulfate by-product from such generators.
摘要翻译：一种使用固定树脂床酸延迟单元（ARU）将废酸从二氧化氯发生器分离成脱酸的硫酸钠组分和纯化的硫酸组分的方法。所产生的脱酸硫酸钠返回到牛皮纸磨机的化学回收循环，代替酸性二氧化氯发生器流出物，从而避免纸浆厂液中碱度的破坏。此外，纯化硫酸提供了在各种研磨应用中再利用的机会，和/或浓缩并再循环到发生器中。或者，为了避免高的蒸发成本，可以使用纯化的酸来再生用于将氯酸钠转化成氯酸钠/氯酸混合物的阳离子交换单元（CEU），该氯酸钠/氯酸混合物被供给到发生器代替氯酸钠和硫酸。使用这种方法，可以减少二氧化氯发生器的硫酸需求，进而降低酸性发生器流出物的量。该方法适用于大气和低气压的二氧化氯发生器。在后一种情况下，来自ARU或任何其它酸分离系统的纯化硫酸的浓度可以通过使用其一部分来从这种发生器中溶解倍半硫酸钠副产物而增加。

2. 发明授权

US4778572A Process for electroplating metals 失效
标题翻译：电镀金属工艺
公开(公告)号：US4778572A
公开(公告)日：1988-10-18
申请号：US93664
申请日：1987-09-08
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： C25D5/00 , C25D17/10 , C25D21/00 , C25D21/14 , C25D21/16
CPC分类号： C25D17/10 , C25D17/00 , C25D21/18
摘要： A process for electroplating metals in an electroplating bath having an anode and a cathode. The cathode is formed by a workpiece to be plated and the anode includes soluble material in the form of the metal to be plated and insoluble material in a proportion selected so that the anode efficiency equals the cathode efficiency. This avoids metal salt build-up in the bath. Metal salt solution carried out of the bath with the workpiece is recovered and recycled to the bath, avoiding loss of metal to the system and waste disposal problems.

3. 发明授权

US07045067B2 Method and apparatus for increasing filter contaminant loading capacity 有权
标题翻译：提高过滤污染物负荷能力的方法和装置
公开(公告)号：US07045067B2
公开(公告)日：2006-05-16
申请号：US10911618
申请日：2004-08-05
申请人： Craig J. Brown , Michael A. Sheedy
发明人： Craig J. Brown , Michael A. Sheedy
IPC分类号： B01D24/46
CPC分类号： B01D24/007 , B01D24/4631
摘要： The filter contaminant loading capacity of a depth granular media filter is increased by imposing a so-called “back-slip” on the filter bed. At intervals between normal backwashing, a volume of liquid is passed upwardly through the media bed under flow conditions selected to displace at least some of the contaminants upwardly in the bed while essentially removing none of the contaminants from the filter vessel. Preferably, the filter bed comprises at least two media types of different but uniform particle sizes and densities, the media types each forming a distinct layer in which the effective particle size of the media in each successive layer decreases in a downward direction in the vessel.
摘要翻译：通过在过滤床上施加所谓的“反滑”来增加深度颗粒状介质过滤器的过滤器污染物负载能力。在正常回洗之间的间隔，一定体积的液体在流动条件下向上通过介质床，所述流动条件被选择为在床中向上移动至少一些污染物，同时基本上从过滤器容器中除去任何污染物。优选地，过滤床包括不同但均匀的粒度和密度的至少两种介质类型，所述介质类型各自形成不同的层，其中每个连续层中的介质的有效粒度在容器中沿向下的方向减小。

4. 发明授权

US5547579A Process and apparatus for purification of contaminated acids 失效
标题翻译：净化污染酸的工艺和设备
公开(公告)号：US5547579A
公开(公告)日：1996-08-20
申请号：US376193
申请日：1995-01-20
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： B01D61/14 , B01D61/02 , B01D61/04 , B01D61/16 , B01D61/18 , B01D61/58 , B01J41/04 , C01B17/90 , C02F1/44 , C23G1/36 , B01D61/00
CPC分类号： B01D61/027 , B01D61/04 , B01D61/58 , B01J41/043 , C01B17/902 , C02F1/442 , C23G1/36 , B01D2311/04 , B01D61/243
摘要： Acids contaminated with multi-valent metal salts are purified by a process which involves treatment in an acid sorption unit (ASU) and a nanofiltration unit (NFU). The feed solution can first be delivered to the ASU, which produces two solutions, one high in acid concentration and the other high in metal salt concentration. The high acid concentration solution can be treated in the NFU to produce an acid end product and a reject metal salt solution which can be recirculated to the feed of the NFU. Alternatively, the high metal salt solution can be treated in the NFU, and its permeate recirculated to the ASU as eluate. In an alternative configuration, the feed is delivered first to the NFU. In all cases, the membrane reject solution from the NFU is recirculated to increase the metal salt concentration. A second NFU can be used to process the solution from the ASU which contains a high metal salt concentration.
摘要翻译：被多价金属盐污染的酸通过涉及在酸吸附单元（ASU）和纳滤单元（NFU）中处理的方法进行纯化。饲料溶液可以先送到ASU，产生两种溶液，酸浓度高，金属盐浓度高。可以在NFU中处理高酸浓度溶液，以产生可以再循环到NFU进料的酸终产物和废弃金属盐溶液。或者，高金属盐溶液可以在NFU中处理，并且其渗透物作为洗脱液再循环到ASU中。在另一种配置中，饲料首先送到NFU。在所有情况下，来自NFU的膜拒绝溶液被再循环以增加金属盐浓度。第二个NFU可用于处理含有高金属盐浓度的ASU溶液。

5. 发明授权

US5942084A Process for the separation of sulphides from pulping liquors using amphoteric resins 失效
标题翻译：使用两性树脂从制浆液中分离硫化物的方法
公开(公告)号：US5942084A
公开(公告)日：1999-08-24
申请号：US788187
申请日：1997-01-24
申请人： Rokhsareh Thompson , Michael Paleologou , Richard McKinnon Berry , Craig J. Brown , Michael Sheedy
发明人： Rokhsareh Thompson , Michael Paleologou , Richard McKinnon Berry , Craig J. Brown , Michael Sheedy
IPC分类号： B01J43/00 , D21C11/00 , D21C11/04
CPC分类号： D21C11/005 , B01J43/00 , D21C11/04 , Y10S210/928
摘要： A process using an amphoteric ion-exchange resin, also known as a "snake-cage polyelectrolyte" resin separates kraft white liquor into sulphide-rich and caustic-rich components. The sulphide-rich component can be used in the initial stage of pulping, pretreatment of wood chips prior to pulping, or it can be used to make polysulphide-rich liquor. The caustic-rich component can be used in the final delignification phase, in place of sodium hydroxide or white liquor in oxygen delignification, pH adjustment and flue gas scrubbing. The same system can be used to separate green and polysulphide liquors into sulphide-rich and sulphide-poor components, and to remove sulphide from other mill caustic streams contaminated with sulphide.
摘要翻译：使用两性离子交换树脂（也称为“蛇笼式聚电解质”）树脂的方法将硫酸盐白液分离成富含硫的富碱组分。富硫化物组分可用于制浆的初始阶段，在制浆前预处理木屑，或者可用于制备富含多硫化物的液体。富含苛性碱的组分可用于最终脱木质阶段，代替氢脱氧木质素，pH调节和烟道气洗涤中的氢氧化钠或白液。可以使用相同的系统将绿色和多硫化物液体分离成富含硫化物和硫化物的组分，并从硫化物污染的其他磨碎的苛性碱流中除去硫化物。

6. 发明授权

US4832812A Apparatus for electroplating metals 失效
标题翻译：电镀金属设备
公开(公告)号：US4832812A
公开(公告)日：1989-05-23
申请号：US188333
申请日：1988-05-04
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： C25D5/00 , C25D21/00
CPC分类号： C25D17/00 , C25D17/10 , C25D21/18
摘要： An apparatus for electroplating metals in an electroplating bath having an anode and a cathode. The cathode is formed by a workpiece to be plated and the anode includes soluble material in the form of the metal to be plated and insoluble material in a proportion selected so that the anode efficiency equals the cathode efficiency. This avoids metal salt build-up in the bath. Metal salt solution carried out of the bath with the workpiece is recovered and recycled to the bath, avoiding loss of metal to the system and waste disposal problems.
摘要翻译：一种用于在具有阳极和阴极的电镀浴中电镀金属的装置。阴极由要被电镀的工件形成，并且阳极以所选择的比例包含被镀金属和不溶性材料形式的可溶性材料，使得阳极效率等于阴极效率。这可以避免金属盐积聚在浴缸中。将回收的金属盐溶液与工件一起回收并回收到浴中，避免金属损失到系统和废物处理问题。

7. 发明授权

US5162079A Process and apparatus for control of electroplating bath composition 失效
标题翻译：用于控制电镀浴组合物的方法和装置
公开(公告)号：US5162079A
公开(公告)日：1992-11-10
申请号：US646971
申请日：1991-01-28
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： C25D21/12
CPC分类号： C25D21/12
摘要： A process and apparatus for electroplating metals in which the metal salt concentration within the electroplating bath is reduced by providing an insoluble anode assembly in the bath. The insoluble anode assembly includes an enclosure which defines a compartment around an insoluble anode and which is formed at least in part by an anion exchange membrane. The primary reaction at the insoluble anode during electroplating is electrolysis of water to produce predominantly oxygen and hydrogen ions. The flow of current through the insoluble anode assembly causes anions in the plating solution to travel through the anion membrane into the compartment, resulting in an increase in acid concentration within the compartment. Accumulated acid is periodically flushed from the compartment.
摘要翻译：电镀金属的方法和装置，其中通过在浴中提供不溶性阳极组件来减少电镀浴中的金属盐浓度。不溶性阳极组件包括围绕不溶性阳极限定隔室并且至少部分地由阴离子交换膜形成的外壳。电镀期间不溶性阳极的主要反应是电解水，主要产生氧和氢离子。电流通过不溶性阳极组件的流动导致电镀溶液中的阴离子穿过阴离子膜进入隔室，导致隔室内的酸浓度增加。累积的酸从隔间定期冲洗。

8. 发明授权

US4906340A Process for electroplating metals 失效
标题翻译：电镀金属工艺
公开(公告)号：US4906340A
公开(公告)日：1990-03-06
申请号：US359298
申请日：1989-05-31
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： C25D21/00
CPC分类号： C25D7/0621 , C25C1/00 , C25C7/00 , C25C7/02 , C25D7/0642
摘要： A process for electroplating metals in an electroplating cell in which the anode current efficiency of the cell is greater than the cathode current efficiency. Buildup of excess metal in the cell is counteracted by circulating the plating solution through an electrowinning cell and plating out the excess metal onto cathodes in the electrowinning cell. The amount of current flowing through the electrowinning cell is controlled so that the amount of the said current which results in the deposition of metal is at least substantially equal to the amount of current flowing through the electroplating cell which results in the evolution of hydrogen gas.
摘要翻译：在电镀单元中电镀金属的方法，其中电池的阳极电流效率大于阴极电流效率。通过使电镀液通过电解沉积池循环并将多余的金属电镀到电解冶金池中的阴极上来抵消电池中多余金属的堆积。控制流过电解冶金池的电流量使得导致金属沉积的所述电流的量至少基本上等于流过电镀池的电流量，这导致氢气的逸出。

9. 发明授权

US4673507A Fluid treatment process and apparatus 失效
标题翻译：流体处理工艺和装置
公开(公告)号：US4673507A
公开(公告)日：1987-06-16
申请号：US737123
申请日：1985-05-23
申请人： Craig J. Brown
发明人： Craig J. Brown
IPC分类号： C02F1/42 , B01D15/04 , B01D15/14
CPC分类号： B01J47/02 , B01D15/14 , C02F2303/16
摘要： An apparatus and process for treating a fluid by passing the fluid through a bed of particulate material such as an ion exchange resin capable of taking up from the fluid a component to be removed therefrom. Substantially uniform fluid flow distribution across the cross-sectional area of the bed is achieved by employing resins of fine particle size which are maintained in an overpacked condition.
摘要翻译：一种用于通过使流体通过诸如离子交换树脂的颗粒材料床而处理流体的装置和方法，该离子交换树脂能够从流体中吸收待除去的组分。通过使用保持在外包装状态的细粒度的树脂来实现床的横截面积上的基本均匀的流体流动分布。

10. 发明授权

US5922171A Method and apparatus for removing sodium chloride from pulping chemicals using an amphoteric ion-exchange resin 失效
标题翻译：使用两性离子交换树脂从制浆化学品中除去氯化钠的方法和装置
公开(公告)号：US5922171A
公开(公告)日：1999-07-13
申请号：US788181
申请日：1997-01-24
申请人： Michael Paleologou , Rokhsareh Thompson , Richard McKinnon Berry , Michael A. Sheedy , Craig J. Brown
发明人： Michael Paleologou , Rokhsareh Thompson , Richard McKinnon Berry , Michael A. Sheedy , Craig J. Brown
IPC分类号： D21C11/00 , D21C11/06
CPC分类号： D21C11/066 , D21C11/005 , Y02P40/44
摘要： Sodium chloride is removed from pulping chemicals used in a Kraft pulping process by the use of a snake-cage polyelectrolyte ion exchange resin, coupled with removal of sulfide prior to treatment, or treatment of chemicals which are already low in sulfide. In one aspect of the invention, dust is collected from exhaust gases produced in the black liquor recovery cycle and is dissolved in water to produce a solution containing sodium chloride and sodium sulfate. The solution is filtered to yield a solid product and a filtrate solution. The filtrate solution is fed to an ion exchange unit which removes chloride and produces a purified sodium sulfate product. The sodium chloride is removed from the ion exchange resin by water elution, and useful recovered chemicals are recycled to the recovery cycle of the Kraft process. In one embodiment, only a portion of the dust is dissolved so that the solid product produced by filtering is primarily sodium sulfate, and that sodium sulfate is recycled to the recovery cycle of the Kraft process. In another aspect of the invention, white liquor from the pulping process is treated directly after oxidizing sulfide to sulfate. After removal of sodium chloride in the ion exchange unit, the treated white liquor can be used as a source of sodium hydroxide for oxygen delignification, and the effluent from the oxygen delignification stage can be returned to the process.
摘要翻译：氯化钠从硫酸盐法制浆工艺中使用的制浆化学品中除去，通过使用蛇笼式聚电解质离子交换树脂，加上处理前除去硫化物，或处理硫化物已经很低的化学物质。在本发明的一个方面，从黑液回收循环中产生的废气中收集灰尘，并将其溶于水中以产生含有氯化钠和硫酸钠的溶液。将溶液过滤，得到固体产物和滤液。将滤液送入离子交换单元，除去氯化物并产生纯化的硫酸钠产物。通过水洗从离子交换树脂中除去氯化钠，并将有用的回收的化学品循环到牛皮纸工艺的回收循环中。在一个实施方案中，只有一部分粉尘被溶解，使得通过过滤产生的固体产物主要是硫酸钠，并且硫酸钠被再循环到硫酸盐法的回收循环。在本发明的另一方面，将硫化物氧化成硫酸盐后，直接处理来自制浆过程的白液。在离子交换单元中除去氯化钠之后，处理后的白液可用作氢脱氧素的氢氧化钠源，氧脱木素阶段的流出物可以返回到该过程中。

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