Process for producing pure water
    11.
    发明授权
    Process for producing pure water 失效
    纯水生产工艺

    公开(公告)号:US5954965A

    公开(公告)日:1999-09-21

    申请号:US825153

    申请日:1997-03-26

    CPC classification number: C02F1/42 B01J39/043 B01J41/043 Y10S210/90

    Abstract: The present invention relates to a process for producing pure water having a total organic carbon content of not more than 200 ppb instantly after start of the operation of a high purity water system, comprising using as an ion exchange resin a specific strongly basic anion exchange resin and passing raw water through the high purity water system at a space velocity of not less than 20. The produced pure water is capable of producing tasteless and odorless pure water instantly after start of the operation of the high purity water system.

    Abstract translation: 本发明涉及在高纯度水系开始运行后立即生产总有机碳含量不超过200ppb的纯水的方法,其包括使用特定的强碱性阴离子交换树脂作为离子交换树脂 并将原水以不小于20的空间速度通过高纯度水系统。生产的纯水能够在高纯度水系统开始运行后立即产生无味无味的纯水。

    Process of making regenerated cellulose articles
    12.
    发明授权
    Process of making regenerated cellulose articles 失效
    制备再生纤维素制品的方法

    公开(公告)号:US5441689A

    公开(公告)日:1995-08-15

    申请号:US240696

    申请日:1994-05-09

    Applicant: Peter R. Laity

    Inventor: Peter R. Laity

    CPC classification number: D01F13/02 B01J41/043 B01J49/0013 D01F2/00 Y02P70/627

    Abstract: Aqueous solutions of an amine N-oxide such as N-methyl morpholine N-oxide used in the manufacture of regenerated cellulose can be purified by passage through a strongly basic anion-exchange resin. The resin is regenerated by treatment with (1) an aqueous solution of a strong inorganic acid such as hydrochloric or sulphuric acid and (2) an aqueous solution of sodium hydroxide.

    Abstract translation: PCT No.PCT / GB92 / 02233 Sec。 371日期1994年5月9日 102(e)日期1994年5月9日PCT提交1992年12月1日PCT公布。 公开号WO93 / 11287 日期:1993年6月10日。用于制造再生纤维素的胺N-氧化物如N-甲基吗啉N-氧化物的水溶液可以通过强碱性阴离子交换树脂进行纯化。 通过用(1)强无机酸的水溶液(如盐酸或硫酸)和(2)氢氧化钠水溶液处理来再生树脂。

    Method for preparing polyhalide resin disinfectants
    13.
    发明授权
    Method for preparing polyhalide resin disinfectants 失效
    多卤素树脂消毒剂的制备方法

    公开(公告)号:US5431908A

    公开(公告)日:1995-07-11

    申请号:US32620

    申请日:1993-03-17

    Applicant: James L. Lund

    Inventor: James L. Lund

    CPC classification number: B01J41/043 A01N59/12

    Abstract: The invention provides a method for preparing polyhalide resin disinfectants. The step of the method involves circulating an effective amount of a polyhalide salt carrier solution between an effective amount of elemental halide and a strong base anion exchange resin until substantially all of the resin is converted to the polyhalide form. The elemental halide and the resin are separately disposed but connected so that the polyhalide salt carrier solution can be recirculated until all of the elemental halide is transferred to the resin. The method of the invention can be used to form a tri-iodide or penta-iodide resin, or mixed form of the resin including IBr.sub.2.sup.-/I.sub.2.sup.-.

    Abstract translation: 本发明提供一种制备多卤素树脂消毒剂的方法。 该方法的步骤包括在有效量的元素卤化物和强碱性阴离子交换树脂之间循环有效量的多卤盐盐载体溶液,直到基本上所有的树脂转化为多卤化物形式。 元素卤化物和树脂分开设置但连接,使得多卤盐载体溶液可以再循环,直到将所有元素卤化物转移到树脂中。 本发明的方法可用于形成三碘化物或五碘化物树脂,或包含IBr2- / I2-的树脂的混合形式。

    Clean up of ethanolamine solution by treating with weak ion exchange
resins
    14.
    发明授权
    Clean up of ethanolamine solution by treating with weak ion exchange resins 失效
    用弱离子交换树脂处理清洗乙醇胺溶液

    公开(公告)号:US5292493A

    公开(公告)日:1994-03-08

    申请号:US802586

    申请日:1991-12-05

    Abstract: The present invention provides a process for removing heat stable salts which accumulate in alkanolamine gas purification process units. Surprisingly, it has been found that weakly acidic cationic exchange resins are dramatically more effective for removing heat stable salts from alkanolamine solutions than strongly acidic cationic exchange resins.Specifically, it has been found in accordance with the invention that ion exchange resins are useful for purifying used aqueous alkanolamine solutions, in the following order of preference: Weak Acid IX>Weak Base IX>Strong Acid IX>Strong Base IX.

    Abstract translation: 本发明提供一种除去积聚在烷醇胺气体净化处理单元中的热稳定盐的方法。 令人惊讶的是,已经发现,弱酸性阳离子交换树脂比强酸性阳离子交换树脂更有效地从烷醇胺溶液中除去热稳定的盐。 具体地说,根据本发明已经发现离子交换树脂可用于按以下优先顺序纯化所用的链烷醇胺水溶液:弱酸IX>弱碱IX>强酸IX>强碱IX。

    Regenerable biocide delivery unit
    15.
    发明授权
    Regenerable biocide delivery unit 失效
    可再生杀生物剂输送装置

    公开(公告)号:US5176836A

    公开(公告)日:1993-01-05

    申请号:US671603

    申请日:1991-03-18

    CPC classification number: G05D21/02 B01J41/043 C02F1/766

    Abstract: A method and apparatus are disclosed for maintaining continuous, long-term microbial control in the water supply for potable, hygiene, and experimental water for space activities, i.e., space shuttle, orbiter lab, Lunar base, Mars base, deep space missions, etc., as well as treatment of water supplies on earth. The water purification is accomplished by introduction of molecular iodine into the water supply to impart a desired iodine residual. The water is passed through an iodinated anion exchange resin bed. The iodine is bound as I.sup.-.sub.n at the anion exchange sites and releases I.sub.2 into the water stream flowing through the bed. Suitable anion exchange resins are Amberlite IRA 401S (Rohm & Haas); Dowex SBR (Dow Chemical); and Ionac ASB-1P (Sybron Corp.). The concentration of I.sub.2 in the flowing water gradually decreases and the ion-exchange bed has had to be replaced. In a preferred embodiment, a bed of iodine crystals is provided with connections for flowing water therethrough to produce a concentrated (substantially saturated) aqueous iodine solution which is passed through the iodinated resin bed to recharge the bed with bound iodine. The iodinated resin bed has been recharged up to eight times during continuous use to permit an extended life to the system. The bed of iodine crystals is connected in parallel with the iodinated resin bed and is activated periodically, e.g., by timer, by measured flow of water, or by iodine residual level, to recharge the bed.

    Abstract translation: 公开了一种方法和装置,用于在空间活动的饮用,卫生和实验水的供水中维持连续的长期微生物控制,即航天飞机,轨道实验室,月球基座,火星基地,深空任务等 ,以及治理地球上的用水。 通过向供水中引入分子碘来实现所需的碘残留来实现水净化。 水通过碘化阴离子交换树脂床。 碘在阴离子交换位点与I-n结合,并将I2释放到流过床层的水流中。 合适的阴离子交换树脂是Amberlite IRA 401S(Rohm&Haas); Dowex SBR(Dow Chemical); 和Ionac ASB-1P(Sybron Corp.)。 流动水中的I2浓度逐渐降低,必须更换离子交换床。 在一个优选的实施方案中,碘晶床设置有用于使水流过其中的连接,以产生浓缩(基本上饱和的)碘水溶液,其通过碘化树脂床以用结合的碘对床进行再充电。 碘化树脂床在连续使用期间已经再次充电八次,以延长系统的使用寿命。 碘晶体床与碘化树脂床平行连接,并通过定时器,通过测量的流量或碘残留量周期性地被激活以再充电床。

    Method of ion exchange
    16.
    发明授权
    Method of ion exchange 失效
    离子交换方法

    公开(公告)号:US5084185A

    公开(公告)日:1992-01-28

    申请号:US377582

    申请日:1989-07-10

    CPC classification number: B01J41/043 B01J49/0013 Y10S210/903

    Abstract: The present invention relates to a method of reducing the concentration of contaminant ions, preferably nitrates ions, in impure water. The method comprises steps of: a) passing the impure water through an ion exchange resin to substitute regenerant ions from the resin for dissolved contaminant ions; b) passing a relatively dilute aqueous solution of wash-out ions through said resin to substitute wash-out ions for contaminant ions bound to the resin and; c) passing a relatively concentrated aqueous solution of regenerant ions through said resin to substitute regenerant ions for wash-out ions bound to the resin. The affinity of the resin to wash-out ions diminishes from being greater than that for contaminant and regenerant ions when exposed to a relatively dilute ionic solution to being less than that for said contaminant and regenerant ions when exposed to a relatively concentrated ionic solution. The method allows simplified ion exchange apparatus to be utilized, since the raw water, wash-out solution and regenerant solution may all be passed through the ion exchange resin in the same direction.

    Abstract translation: 本发明涉及在不纯的水中降低污染物离子(优选硝酸根离子)的浓度的方法。 该方法包括以下步骤:a)使不纯的水通过离子交换树脂以代替来自树脂的再生剂离子用于溶解的污染物离子; b)将相对稀释的洗出的离子水溶液通过所述树脂,以将洗出的离子替换为与树脂结合的污染物离子; c)使相对浓缩的再生剂离子水溶液通过所述树脂,以代替再生剂离子以与树脂结合的洗出离子。 当暴露于相对浓缩的离子溶液时,当暴露于相对稀释的离子溶液时,树脂对洗涤离子的亲和力比大于污染物和再生离子的亲和力降低到小于所述污染物和再生离子的亲和力。 该方法允许使用简单的离子交换装置,因为原水,洗出溶液和再生剂溶液都可以沿相同方向通过离子交换树脂。

    Process for removing metal complexes from waste solutions
    17.
    发明授权
    Process for removing metal complexes from waste solutions 失效
    从废液中除去金属络合物的方法

    公开(公告)号:US4770788A

    公开(公告)日:1988-09-13

    申请号:US727117

    申请日:1985-04-25

    Inventor: Michael Vignola

    CPC classification number: B01J41/043 C23C18/1617

    Abstract: This invention relates to a process for treating waste solutions and rinse waters, especially those from electroless plating processes to remove organometallic complexes and complexing agents, particularly copper and copper-EDTA complexes by eluting the waste solutions through anionic exchange resins.

    Abstract translation: 本发明涉及一种用于处理废溶液和冲洗水的方法,特别是那些通过无电镀方法除去有机金属络合物和络合剂,特别是铜和铜 - EDTA络合物的水,通过阴离子交换树脂洗脱废溶液。

    Bacteriocidal resins and disinfection of water therewith
    18.
    发明授权
    Bacteriocidal resins and disinfection of water therewith 失效
    杀菌树脂和消毒水

    公开(公告)号:US4420590A

    公开(公告)日:1983-12-13

    申请号:US251337

    申请日:1981-04-06

    CPC classification number: B01J41/043 C02F1/766

    Abstract: Novel strongly basic anion-exchange resins substantially loaded with controlled relative proportions of iodide-bromide polyhalides whereby, when water is passed therethrough which is contaminated with bacteria, potable drinkable water is obtained for safe and effective usage in public water supply systems for relatively prolonged periods of time.

    Abstract translation: 新型强碱性阴离子交换树脂基本上装载有碘化物溴化物多卤化物的受控相对比例,由此当水通过其被细菌污染时,获得可饮用的饮用水,用于在公共供水系统中安全有效地使用相对较长的时间 的时间。

    Cyanide recovery
    19.
    发明授权
    Cyanide recovery 失效
    氰化物恢复

    公开(公告)号:US4267159A

    公开(公告)日:1981-05-12

    申请号:US176355

    申请日:1980-08-08

    Inventor: George J. Crits

    Abstract: Spent aqueous liquor containing cyanide, as from ore treatment, is passed through a bed of suitable anion-exchange resin to segregate the cyanide, which is subsequently recovered in regeneration of the resin by weak alkaline solution. Both the eluted cyanide and the alkaline regenerant are recycled, if desired, for further ore treatment. A most important benefit of such procedure is nearly complete elimination of cyanide as a component of the treatment effluent. Free cyanide may be separated from complexed cyanides when present by using weak alkaline regenerant to elute the free cyanide from the resin and stronger alkaline regenerant to elute the complexed cyanides.

    Abstract translation: 含有氰化物的废液从矿石处理通过合适的阴离子交换树脂床,以分离出氰化物,氰化物随后通过弱碱性溶液在树脂再生中回收。 如果需要,洗脱的氰化物和碱性再生剂都被再循环用于进一步的矿石处理。 这种方法的最重要的益处是几乎完全消除作为处理流出物的组分的氰化物。 通过使用弱碱性再生剂,游离氰化物可以从络合的氰化物中分离出来,以从树脂中洗脱游离氰化物和更强碱性再生剂以洗脱络合的氰化物。

    Purification of water for boiler
    20.
    发明授权
    Purification of water for boiler 失效
    锅炉净化水

    公开(公告)号:US4098691A

    公开(公告)日:1978-07-04

    申请号:US767438

    申请日:1977-02-10

    Applicant: John Filby

    Inventor: John Filby

    CPC classification number: B01J41/043 C02F1/78

    Abstract: Ozone is dispersed in river water to be purified and used in a high pressure boiler. The ozone selectively degrades large organic molecules, dissolved in the water, which ordinarily will irreversibly foul the strongly basic anion attracting resin used to adsorb silicious contaminants from the water. The degraded molecules are reduced in resin-fouling capability and are removed from the resin during regeneration.

    Abstract translation: 臭氧分散在河水中进行净化,用于高压锅炉。 臭氧选择性地降解溶解在水中的大的有机分子,这通常将不可逆地污染用于从水中吸附硅质污染物的强碱性阴离子吸引树脂。 降解的分子的树脂污染能力降低,并在再生过程中从树脂中除去。

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