公开(公告)号：US4430496A

公开(公告)日：1984-02-07

申请号：US359173

申请日：1982-03-16

Applicant: Seth R. Abbott

Inventor： Seth R. Abbott

IPC: B01J20/32 ,  B01J41/10 ,  C07H17/00 ,  B01D15/08

CPC classification number: B01J41/10 ,  B01J20/264 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28057 ,  B01J20/28083 ,  B01J20/286 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3212 ,  B01J20/3217 ,  B01J20/3257 ,  B01J41/043 ,  B01J41/085 ,  B01J41/20 ,  B01J2220/54 ,  B01J2220/58

Abstract: A strong anion exchange composition useful in monophosphate nucleotide isomer separations is comprised of an inert porous particle having a silyl alkyl ammonium compound fixedly attached by a covalent silicon-oxygen-silicon bond to the surface thereof. A process for synthesizing the strong anion exchange composition in an aqueous solvent is disclosed together with methods for separation of monophosphate nucleotide isomers, highly phophorylated nucleotides and aldopentose carbohydrates using a column packed with this strong anion exchange composition.

Abstract translation: 用于单磷酸核苷酸异构体分离的强阴离子交换组合物由具有通过共价硅 - 氧 - 硅键固定连接到其表面的甲硅烷基烷基铵化合物的惰性多孔颗粒组成。 公开了一种用于在水性溶剂中合成强阴离子交换组合物的方法以及使用填充有该强阴离子交换组合物的柱分离单磷酸核苷酸异构体，高度磷酸化核苷酸和戊糖醛糖碳水化合物的方法。

公开(公告)号：US4241026A

公开(公告)日：1980-12-23

申请号：US961438

申请日：1978-11-16

Applicant: Tsoung-yuan Yan

Inventor： Tsoung-yuan Yan

IPC: B01J41/04 ,  C22B60/02 ,  C01G43/02

CPC classification number: B01J41/043 ,  C22B60/0265

Abstract: An ion exchange process for the recovery of uranium from a pregnant lixiviant employed in uranium leaching operations in which the lixiviant contains chloride ions inhibiting the adsorption of uranyl ions. The ion exchange resin employed to adsorb uranium from the lixiviant has cationic adsorption sites provided by quaternary ammonium groups having a hydroxyalkyl group as a quaternizing substituent. Through the use of a resin of this type, the resin loading in the presence of chloride ions is materially increased.

Abstract translation: 用于从铀浸出操作中使用的怀孕浸剂中回收铀的离子交换方法，其中浸出剂含有抑制吸附铀酰离子的氯离子。 用于从浸取剂中吸附铀的离子交换树脂具有由具有羟烷基作为季铵化取代基的季铵基提供的阳离子吸附位点。 通过使用这种树脂，在氯离子存在下的树脂负载量大大增加。

公开(公告)号：US4235717A

公开(公告)日：1980-11-25

申请号：US944688

申请日：1978-09-22

Applicant: John M. Lee ,  William C. Bauman

Inventor： John M. Lee ,  William C. Bauman

IPC: B01J41/04 ,  B01J41/14 ,  C01D1/28 ,  C02F1/42

CPC classification number: C01D1/28 ,  B01J41/043 ,  B01J41/14

Abstract: Ion retardation resins particularly useful for desalting caustic solutions are prepared by employing ion exchange resins consisting essentially of a mixture of a reticular, insoluble, cross-linked styrene/divinylbenzene copolymer with an entrapped non-leachable polymer of acrylic acid contained therein and where the amount of carboxylic acid groups on the polyacrylic acid are in substantial excess over the amount needed to react with all the quaternary ammonium groups which are nuclear substituted on the styrene copolymer chains.

Abstract translation: 特别适用于脱盐苛性碱溶液的离子延迟树脂通过使用基本上由网状，不溶性，交联的苯乙烯/二乙烯基苯共聚物与其中所含的包含丙烯酸的截留的不可浸出聚合物的混合物组成的离子交换树脂来制备， 的聚丙烯酸上的羧酸基团相对于在苯乙烯共聚物链上被核取代的所有季铵基团反应所需的量相当大。

公开(公告)号：US4125550A

公开(公告)日：1978-11-14

申请号：US728107

申请日：1976-09-30

Applicant: Karl A. Schoenenberger ,  William Fries

Inventor： Karl A. Schoenenberger ,  William Fries

IPC: B01D15/04 ,  B01J41/04 ,  C11B3/10 ,  C09F5/10 ,  C11B3/00

CPC classification number: B01J41/043 ,  C11B3/10

Abstract: Certain anion exchange resins are used for the removal of free fatty acids from water immiscible fluids. This anion exchange system can function without the necessity of organic solvents and with the resin in a hydrous state.

Abstract translation: 某些阴离子交换树脂用于从水不混溶的流体中除去游离脂肪酸。 该阴离子交换系统可以在不需要有机溶剂的情况下起作用，并且树脂处于含水状态。

公开(公告)号：US4018676A

公开(公告)日：1977-04-19

申请号：US649441

申请日：1976-01-15

Applicant: John C. Hoffsommer ,  Lloyd A. Kaplan ,  Donald A. Kubose ,  Donald J. Glover

Inventor： John C. Hoffsommer ,  Lloyd A. Kaplan ,  Donald A. Kubose ,  Donald J. Glover

IPC: B01D15/00 ,  B01J41/04

CPC classification number: B01J41/043 ,  B01D15/00 ,  C02F1/42 ,  C02F2001/422 ,  C02F2101/003 ,  C02F2101/38 ,  Y10S149/124

Abstract: Hydrolyzable, non-aromatic, nitroso- or nitro-substituted explosive compos are removed from water by adsorption of the explosive on a strongly basic anion exchange resin, and by chemical interaction of the adsorbed explosive with the anion exchange resin to produce relatively non-toxic products.

Abstract translation: 可水解，非芳香，亚硝基或硝基取代的爆炸性化合物通过在强碱性阴离子交换树脂上吸附爆炸物，并通过吸附的炸药与阴离子交换树脂的化学相互作用从水中除去，产生相对无毒的 产品。

公开(公告)号：US3996334A

公开(公告)日：1976-12-07

申请号：US582806

申请日：1975-06-02

Applicant: George J. Hartman ,  Vernon R. Ewing

Inventor： George J. Hartman ,  Vernon R. Ewing

IPC: C01F7/02 ,  B01J39/02 ,  B01J39/04 ,  B01J41/04 ,  C01D5/00 ,  C01F7/06

CPC classification number: B01J41/043 ,  B01J39/02 ,  B01J39/043 ,  C01D5/008 ,  C01F7/0686

Abstract: An improvement in processes for recovering aluminum from alunite ore which processes include roasting the ore to remove water of hydration, removing sulfur and potassium compounds from the roasted ore by a procedure including a final leaching step resulting in a residue and a solution containing potassium sulfate, effecting partial recovery of potassium sulfate from the solution by crystallization with some potassium sulfate being bled off from the mother liquor, converting aluminum values in the residue to alkali metal aluminates by digesting the residue with alkali metal hydroxide including a substantial amount of sodium hydroxide, removing silicon from the alkali metal aluminates leaving a waste desilication product, recovering aluminum values from the desilicated aluminates by precipitation, circulating the mother liquor from the precipitation step to digestion as contaminated sodium hydroxide is bled off, the improvement which comprises enhancing the economics of the overall process by introducing therein an ion exchange procedure in which potassium hydroxide for the first leaching step is produced through ion exchange by use of potassium sulfate and sodium hydroxide, a further improvement being the use of the desilication product as the ion exchange agent.

Abstract translation: 从铝酸钙矿石中回收铝的方法的改进包括焙烧矿石以除去水合水，通过包括残留物的最终浸出步骤和含有硫酸钾的溶液的方法从焙烧的矿石中除去硫和钾化合物， 通过用母液中的一些硫酸钾结晶从溶液中部分地回收硫酸钾，通过用包括大量氢氧化钠的碱金属氢氧化物将残留物消化，将残余物中的铝转化成碱金属铝酸盐，除去 来自碱金属铝酸盐的硅离开废弃的脱硅产物，通过沉淀从脱铝的铝酸盐中回收铝的值，将母液从沉淀步骤循环到被污染的氢氧化钠的消解中，其改进包括提高整体的经济性 过程 通过在其中引入离子交换方法，其中通过使用硫酸钾和氢氧化钠通过离子交换产生用于第一浸出步骤的氢氧化钾，进一步改进的是使用脱硅产物作为离子交换剂。