公开(公告)号：US5356611A

公开(公告)日：1994-10-18

申请号：US144515

申请日：1993-11-02

Applicant: Ralf Herkelmann ,  Werner Rudolph ,  Dirk Seffer

Inventor： Ralf Herkelmann ,  Werner Rudolph ,  Dirk Seffer

IPC: B01J41/04 ,  C01B7/14

CPC classification number: C01B7/14

Abstract: A method for recovering iodine from a composition containing iodine and/or iodide in which any iodine present is first reduced to iodide, the iodide is then separated from solution by selective anion exchange absorption, the separated iodide is eluted from the exchanger, the iodide-containing eluate solution is treated with a cation exchanger, H.sub.2 O.sub.2 and H.sub.2 SO.sub.4 are then added to the remaining solution, and the resulting iodine is precipitated and may be separated out in crystalline form. The method is also particularly suitable for separating iodine from solutions which contain organic constituents such as nitrogen-containing organic compounds.

Abstract translation: 从含有碘和/或碘化物的组合物中回收碘的方法，其中首先将存在碘的碘还原成碘，然后通过选择性阴离子交换吸收将碘离子与溶液分离，从交换器洗脱分离的碘化物， 用阳离子交换剂处理含有洗脱液的溶液，然后将H 2 O 2和H 2 SO 4加入到剩余的溶液中，所得碘沉淀并且可以以结晶形式分离出来。 该方法还特别适用于从含有有机成分如含氮有机化合物的溶液中分离碘。

公开(公告)号：US20120253058A1

公开(公告)日：2012-10-04

申请号：US13497316

申请日：2010-09-27

Applicant: Jens Olschimke ,  Dirk Seffer ,  Martin Bomkamp

Inventor： Jens Olschimke ,  Dirk Seffer ,  Martin Bomkamp

IPC: C07C68/06 ,  H01L21/306

CPC classification number: C07D317/36 ,  C07D317/42

Abstract: Difluoroethylene carbonate, trifluoroethylene and tetrafluoroethylene carbonate are produced by the reaction between elemental fluorine and ethylene carbonate or fluorinated ethylene carbonates with a lower degree of fluorination.

Abstract translation: 二氟乙烯碳酸酯，三氟乙烯和四氟乙烯碳酸酯通过元素氟和碳酸亚乙酯之间的反应或具有较低氟化度的氟化亚乙基碳酸酯的反应来制备。

公开(公告)号：US06645451B1

公开(公告)日：2003-11-11

申请号：US08876529

申请日：1997-06-16

Applicant: Alf Schulz ,  Dirk Seffer ,  Matthias Rieland ,  Werner Rudolph

Inventor： Alf Schulz ,  Dirk Seffer ,  Matthias Rieland ,  Werner Rudolph

IPC: C01B2510

CPC classification number: C01B25/10

Abstract: The preparation of phosphorus pentafluoride and arsenic pentafluoride by reacting corresponding trihalides with elemental chlorine, bromine or iodine and also with hydrogen fluoride.

Abstract translation: 通过使相应的三卤化物与元素氯，溴或碘反应，并与氟化氢反应制备五氟化磷和五氟化砷。

公开(公告)号：US5866093A

公开(公告)日：1999-02-02

申请号：US880510

申请日：1997-06-23

Applicant: Heinz-Joachim Belt ,  Dirk Seffer ,  Werner Rudolph

Inventor： Heinz-Joachim Belt ,  Dirk Seffer ,  Werner Rudolph

IPC: C01B25/455 ,  C01D15/00 ,  H01M6/16 ,  H01M10/40 ,  C01B25/10

CPC classification number: C01D15/005

Abstract: A method for preparing lithium hexafluorophosphate, which is useful as an electrolyte in primary and secondary cells, involves combining and cooling phosphorus pentachloride and lithium fluoride, and then adding hydrogen fluoride. Using this method, which is simple to perform, a good yield of the product can be obtained.

Abstract translation: 用于初级和二次电池中的电解质的六氟磷酸锂的制备方法包括组合并冷却五氯化磷和氟化锂，然后加入氟化氢。 使用这种简单的方法，可以获得良好的产率。

公开(公告)号：US20110009660A1

公开(公告)日：2011-01-13

申请号：US12933503

申请日：2009-03-26

Applicant: Harald Krueger ,  Christoph Sommer ,  Alain Lambert ,  Phillip Schwerdt ,  Jens Olschimke ,  Dirk Seffer ,  Saskia Wedekind

Inventor： Harald Krueger ,  Christoph Sommer ,  Alain Lambert ,  Phillip Schwerdt ,  Jens Olschimke ,  Dirk Seffer ,  Saskia Wedekind

IPC: C07C68/08

CPC classification number: C07D317/42 ,  C07C68/08 ,  C07D317/36 ,  C07D317/38 ,  C07C69/96

Abstract: Mixtures comprising organic carbonates, such as carbonates not substituted by fluorine, but especially fluorosubstituted organic carbonates, which are depleted in HF can be obtained from respective mixtures with a higher HF content by a step of stripping such mixture with an inert gas. For example, a reaction mixture comprising fluoroethylene carbonate and HF can be treated in this way. The mixture comprising organic carbonate which is depleted in HF can be distilled to obtain highly purified organic carbonate.

Abstract translation: 通过用惰性气体汽提该混合物的步骤，可以从具有较高HF含量的各自混合物中获得包含有机碳酸酯的混合物，例如不被氟取代的碳酸酯，特别是氟代取代的有机碳酸酯。 例如，可以以这种方式处理包含氟代碳酸亚乙酯和HF的反应混合物。 含有HF的有机碳酸酯的混合物可以蒸馏得到高纯度的有机碳酸盐。

公开(公告)号：US07745648B2

公开(公告)日：2010-06-29

申请号：US11210868

申请日：2005-08-25

Applicant: Olaf Boese ,  Dirk Seffer ,  Katja Peterkord

Inventor： Olaf Boese ,  Dirk Seffer ,  Katja Peterkord

IPC: C07D319/06

CPC classification number: C07D317/42

Abstract: A process for preparing 4-fluoro-1,3-dioxolan-2-one comprising adding 4-fluoro-1,3-dioxolan-2-one to ethylene carbonate in an amount of from 3 to 20% by weight relative to the ethylene carbonate as a solvent for the ethylene carbonate, and introducing fluorine or a mixture containing fluorine in an inert gas is introduced into the resulting solution at 15 to 45° C.

Abstract translation: 一种制备4-氟-1,3-二氧戊环-2-酮的方法，包括将相对于乙烯的3-20重量％的4-氟-1,3-二氧戊环-2-酮加入碳酸亚乙酯中 碳酸酯作为碳酸亚乙酯的溶剂，并将氟或含氟的混合物在惰性气体中引入所得溶液中15至45℃。

公开(公告)号：US20060036102A1

公开(公告)日：2006-02-16

申请号：US11210868

申请日：2005-08-25

Applicant: Olaf Boese ,  Dirk Seffer ,  Katja Peterkord

Inventor： Olaf Boese ,  Dirk Seffer ,  Katja Peterkord

IPC: C07D317/08

CPC classification number: C07D317/42

Abstract: A process for preparing 4-fluoro-1,3-dioxolan-2-one comprising adding 4-fluoro-1,3-dioxolan-2-one to ethylene carbonate in an amount of from 3 to 20% by weight relative to the ethylene carbonate as a solvent for the ethylene carbonate, and introducing fluorine or a mixture containing fluorine in an inert gas is introduced into the resulting solution at 15 to 45° C.

Abstract translation: 一种制备4-氟-1,3-二氧戊环-2-酮的方法，包括将相对于乙烯的3-20重量％的4-氟-1,3-二氧戊环-2-酮加入碳酸亚乙酯中 碳酸酯作为碳酸亚乙酯的溶剂，并将氟或含氟的混合物在惰性气体中引入所得溶液中15至45℃。