公开(公告)号：US06555086B2

公开(公告)日：2003-04-29

申请号：US09402681

申请日：1999-10-07

申请人： Paul Nicholas Ewing ,  Charles John Shields ,  Robert Elliott Low

发明人： Paul Nicholas Ewing ,  Charles John Shields ,  Robert Elliott Low

IPC分类号： C01B719

CPC分类号： C07C17/38 ,  C01B7/195 ,  C07C17/093 ,  C07C17/206 ,  C07C17/21 ,  C07C19/08

摘要： Processes for separating and recovering hydrogen fluoride from a gaseous mixture of an organic compound and hydrogen fluoride are disclosed. The processes include contacting the gaseous mixture with a solution of an alkali metal fluoride in hydrogen fluoride, separating a gas phase depleted in hydrogen fluoride and containing the organic compound from a liquid phase, and recovering hydrogen fluoride from the liquid phase.

摘要翻译： 公开了从有机化合物和氟化氢的气体混合物中分离和回收氟化氢的方法。 该方法包括使气体混合物与氟化氢中的碱金属氟化物的溶液接触，从氟化氢中分离出氟化氢中含有的含有有机化合物的气相，从液相中回收氟化氢。

公开(公告)号：US06521199B2

公开(公告)日：2003-02-18

申请号：US10086635

申请日：2002-03-04

申请人： Max Braun ,  Stefan Palsherm

发明人： Max Braun ,  Stefan Palsherm

IPC分类号： C01B719

CPC分类号： C01B17/4576 ,  C01B7/191 ,  C07B39/00 ,  C07C17/206 ,  C07C41/22 ,  C07C51/58 ,  C07C211/07

摘要： Hydrogen fluoride adducts and ammonium fluorides are used for fluorinating acid chlorides and halocarbon compounds such as chloroalkanes or chloronated ethers. The used adducts can be regenerated and then reused in the fluorination reactions.

公开(公告)号：US06602480B1

公开(公告)日：2003-08-05

申请号：US09763126

申请日：2001-02-20

申请人： Yoichi Mori

发明人： Yoichi Mori

IPC分类号： C01B719

CPC分类号： B01J21/04 ,  B01D53/8659 ,  Y02C20/30

摘要： A method for decomposing a fluorine-containing compound by contacting an exhaust gas 1 containing a fluorine-containing compound, such as C2F6, with aluminum oxide 3, such as &ggr;-alumina, which has been heated to a high temperature of, for example, 800° C. to 900° C. There may be such a necessary or larger number of moles of H2 that the fluorine atoms in the fluorine-containing compound become HF. The method has a high decomposition rate of a fluorine-containing compound, a long life, and involves minimal occurrence of CO.

摘要翻译： 通过将含有含氟化合物（例如C 2 F 6）的废气1与已加热至例如高温的高温氧化铝3，例如γ-氧化铝接触来分解含氟化合物的方法， 800℃至900℃。含氟化合物中的氟原子可能具有必需或较多摩尔数的H 2。 该方法含氟化合物的分解速度高，使用寿命长，CO含量少。

公开(公告)号：US06350426B1

公开(公告)日：2002-02-26

申请号：US09155096

申请日：1999-02-08

申请人： Tomizo Sota ,  Toshinobu Takeuchi ,  Ichiro Morioka

发明人： Tomizo Sota ,  Toshinobu Takeuchi ,  Ichiro Morioka

IPC分类号： C01B719

CPC分类号： G01N29/30 ,  G01N11/00 ,  G01N27/06 ,  G01N29/024 ,  G01N29/326 ,  G01N2291/011 ,  G01N2291/0215 ,  G01N2291/0224 ,  G01N2291/02809 ,  G01N2291/02818 ,  G01N2291/02881

摘要： A method of quickly and safely determining the component concentrations of a three-component mixture comprising substantially sulfuric acid, hydrogen fluoride and water, which comprises measuring at least one set of three physical quantities of (1) temperature, (2) ultrasonic wave propagation velocity and (3) electric conductivity or viscosity of the three-component mixture and converting the obtained values to the component concentrations on the basis of a working curve representing the relationship between each component concentration of the three-component mixture and the three physical quantities; and a method of continuous production of hydrogen fluoride for controlling a water concentration in the reaction system by using this method.

摘要翻译： 一种快速且安全地测定基本上包含硫酸，氟化氢和水的三组分混合物的组分浓度的方法，其包括测量至少一组三个物理量的（1）温度，（2）超声波传播速度 和（3）三组分混合物的电导率或粘度，并根据表示三组分混合物的各组分浓度与三种物质之间的关系的工作曲线将所得值转化为组分浓度; 以及通过使用该方法连续生产氟化氢以控制反应体系中的水浓度的方法。

公开(公告)号：US06790428B2

公开(公告)日：2004-09-14

申请号：US10102488

申请日：2002-03-20

申请人： Athanasios Tsirukis ,  John Theodore Lileck ,  Howard Paul Withers, Jr. ,  Kenneth E. Fegley

发明人： Athanasios Tsirukis ,  John Theodore Lileck ,  Howard Paul Withers, Jr. ,  Kenneth E. Fegley

IPC分类号： C01B719

CPC分类号： C01B21/0832 ,  C01B7/196

摘要： A process for reducing or eliminating NH3/HF/MFz liquid waste melt in the manufacture of NF3 is provided which includes the steps of providing an NF3 reactor for a reaction of F2 with a liquid NH3/HF/MFz mixture that produces NF3, HF, N2 and other nitrogen fluorides as gaseous products and a liquid NH3/HF/MFz mixture as the liquid waste melt. The process further provides for reduction or elimination of the liquid NH3/HF/MFz waste melt produced by the reactor.

摘要翻译： 提供了一种在制造NF3中减少或消除NH 3 / HF / MFz液体废液的方法，该方法包括以下步骤：提供NF3反应器以使F2与产生NF 3，HF的液体NH 3 / HF / MFz混合物反应， N2和其它氮化氟作为气态产物，液态NH3 / HF / MFz混合物作为液体废液。 该方法进一步提供减少或消除由反应器产生的液体NH 3 / HF / MF z废液。

公开(公告)号：US06346227B1

公开(公告)日：2002-02-12

申请号：US09498166

申请日：2000-02-04

申请人： Günther Lailach

发明人： Günther Lailach

IPC分类号： C01B719

CPC分类号： C01B7/196 ,  B01J19/02 ,  B01J2219/0245 ,  C01B7/195

摘要： The novel process for preparing pure hydrofluoric acid or pure hydrogen fluoride is characterized in that, after pretreatment by distillatioil/oxidation, a two-stage scrub is carried out using 65-90% strength by weight hydrofluoric acid and 90-100% strength by weight hydrofluoric acid and water is fed into the first or second scrubbing circuit and a corresponding amount of hydrofluoric acid is bled off to remove impurities.

摘要翻译： 制备纯氢氟酸或纯氟化氢的新方法的特征在于，通过蒸馏/氧化预处理后，使用65-90重量％的氢氟酸和90-100重量％的重量进行两阶段洗涤 将氢氟酸和水进料到第一或第二洗涤回路中，并排出相应量的氢氟酸以除去杂质。

公开(公告)号：US06270742B1

公开(公告)日：2001-08-07

申请号：US09051508

申请日：1998-04-08

申请人： Paul Nicholas Ewing ,  Charles John Shields ,  Christopher Roberts

发明人： Paul Nicholas Ewing ,  Charles John Shields ,  Christopher Roberts

IPC分类号： C01B719

CPC分类号： C01B7/195

摘要： A process for separating and recovering hydrogen fluoride from a mixture with an organic compound especially a fluorine-containing compound by extraction with a solution of an alkali metal fluoride in hydrogen fluoride, phase separation and recovery. A process for producing a fluorine-containing organic compound by fluorinating a starting material with hydrogen fluoride and similarly recovering hydrogen fluoride from the product stream. The solution may be anhydrous or aqueous.

摘要翻译： 通过用氟化氢中的碱金属氟化物溶液萃取，相分离和回收，从有机化合物，特别是含氟化合物的混合物中分离和回收氟化氢的方法。 通过用氟化氢氟化起始原料并类似地从产物流中回收氟化氢来制备含氟有机化合物的方法。 溶液可以是无水或含水的。

公开(公告)号：US06207125B1

公开(公告)日：2001-03-27

申请号：US09317636

申请日：1999-05-25

申请人： Ulrich Seseke-Koyro ,  Thomas Born

发明人： Ulrich Seseke-Koyro ,  Thomas Born

IPC分类号： C01B719

CPC分类号： C01F11/46 ,  C01B7/192

摘要： Flux residues from aluminium soldering fluxes composed of alkali metal metallates, especially fluoroaluminates of the alkali metals, in particular potassium and cesium, can be recycled by adding them to the reaction mixture used for the production of hydrogen fluoride from fluorspar and sulfuric acid or oleum. In this way the fluorine content of the flux residues becomes reusable, and the anhydrite which is produced can advantageously be used for conventional purposes.

摘要翻译： 由碱金属金属盐，特别是碱金属的氟铝酸盐，特别是钾和铯组成的铝助熔剂的助焊剂残渣可以通过将它们加入用于从氟石和硫酸或发烟硫酸生产氟化氢的反应混合物中进行回收。 以这种方式，焊剂残余物的氟含量变得可重复使用，并且所生产的无水石膏可以有利地用于常规目的。

公开(公告)号：US06699455B2

公开(公告)日：2004-03-02

申请号：US09891930

申请日：2001-06-26

申请人： Andreas Bulan ,  Klaus Esch ,  Peter Strabel

发明人： Andreas Bulan ,  Klaus Esch ,  Peter Strabel

IPC分类号： C01B719

CPC分类号： C01B7/192

摘要： The invention relates to a novel process for preparing hydrogen fluoride in a uniformly high conversion at a high space-time yield with minimal energy consumption by reaction of fluorspar with sulfuric acid in a rotary tube furnace, in which the furnace is divided into three equal-sized zones, each of which is heated indirectly by means of from 1 to 12 independent combustion chambers, there being a temperature gradient between the zones such that the first zone has the highest temperature and the third zone has the lowest temperature.

摘要翻译： 本发明涉及一种通过在旋转管式炉中与硫酸反应而以高的时空产率以最小的能量消耗以均匀高的转化率制备氟化氢的新方法，其中将炉子分成三个相等的， 每个区域通过1至12个独立的燃烧室间接加热，在这些区域之间存在温度梯度，使得第一区域具有最高温度，第三区域具有最低温度。

公开(公告)号：US06423290B1

公开(公告)日：2002-07-23

申请号：US09585237

申请日：2000-05-31

申请人： Anilkumar C. Bhatt ,  Jerome J. Wagner

发明人： Anilkumar C. Bhatt ,  Jerome J. Wagner

IPC分类号： C01B719

CPC分类号： C01B7/198 ,  C01B7/195 ,  C07C17/38

摘要： An organic solvent is separated from a waste stream comprising hydrofluoric acid, an organic solvent and etchant contaminants. The process comprises separating the hydrofluoric acid by subjecting the waste stream to at least one of the following processes: ion exchange; extraction of the hydrofluoric acid; electrophoresis; converting the hydrofluoric acid to an insoluble salt; to thereby obtain a first composition containing the hydrofluoric acid and a second stream containing the organic solvent and being substantially free of the hydrofluoric acid; and then distilling the second stream to recover the organic solvent free of the etching contaminants.

摘要翻译： 将有机溶剂与包含氢氟酸，有机溶剂和蚀刻剂污染物的废物流分离。 该方法包括通过使废物流进行以下至少一种方法分离氢氟酸：离子交换;氢氟酸的提取;电泳;将氢氟酸转化为不溶性盐;从而获得含有氢氟酸的第一组合物 酸和含有有机溶剂并且基本上不含氢氟酸的第二料流; 然后蒸馏第二流以回收没有蚀刻污染物的有机溶剂。