公开(公告)号：US06793905B1

公开(公告)日：2004-09-21

申请号：US10110064

申请日：2002-04-08

申请人： Werner Büttner ,  Martin Hostalek ,  Ching-Jung Kan ,  Chih-Peng Lu

发明人： Werner Büttner ,  Martin Hostalek ,  Ching-Jung Kan ,  Chih-Peng Lu

IPC分类号： C01B707

CPC分类号： C01B7/0706 ,  C01B7/0737 ,  H01L21/00

摘要： This invention relates to a novel method, which can be carried out according to industrial standards, for producing high-purity hydrochloric acid with a very low particle content, for use in the production of semiconductors.

摘要翻译： 本发明涉及一种可以根据工业标准进行的用于生产具有非常低的颗粒含量的用于半导体生产的高纯度盐酸的新方法。

公开(公告)号：US06719957B2

公开(公告)日：2004-04-13

申请号：US10124795

申请日：2002-04-17

申请人： Bill L. Brady, Jr. ,  Guenther Weymans ,  Berthold Keggenhoff ,  Friedhelm Steffens

发明人： Bill L. Brady, Jr. ,  Guenther Weymans ,  Berthold Keggenhoff ,  Friedhelm Steffens

IPC分类号： C01B707

CPC分类号： B01D53/002 ,  C01B7/0706

摘要： High boiling contaminants such as chloro-aromatic compounds are removed from a gas by compressing the gas containing the contaminant, cooling the compressed gas to reduce the temperature of the gas to at least 20° C. above the outlet temperature of a second cooling stage but above the freezing point of the highest melting compound in the first cooling stage, further cooling the gas in a second cooling stage to at least −20° C., returning cooled gas from the second cooling stage to the first cooling stage, and recovering condensate streams which contain the contaminant compound from the first and second cooling stages. An apparatus suitable for carrying out this process is also disclosed. The process of the present invention is particularly useful for removing chloro-aromatic compounds from anhydrous hydrogen chloride gas.

公开(公告)号：US06432374B1

公开(公告)日：2002-08-13

申请号：US09994684

申请日：2001-11-28

申请人： Tsuneyoshi Takase ,  Nobuyashi Hayashi ,  Yasushi Shioya ,  Kaoru Fujiwara ,  Mitsuhiro Ohashi

发明人： Tsuneyoshi Takase ,  Nobuyashi Hayashi ,  Yasushi Shioya ,  Kaoru Fujiwara ,  Mitsuhiro Ohashi

IPC分类号： C01B707

CPC分类号： C10G25/003 ,  B01J20/06

摘要： The invention has an object to provide a solid chloride absorbent which can efficiently absorb inorganic chlorides such as hydrogen chloride flowing out from a process in which a heavy naphtha and the like are treated and inorganic chloride derived from crude oil, and which is difficult to powder and soften after absorbing the chlorides. The solid chloride absorbent according to the invention comprises zinc oxide, a porous refractory inorganic matter and an inert binder, has a long life, and hardly releases the absorbed chlorides.

摘要翻译： 本发明的目的是提供一种固体氯化物吸收剂，其能够有效地吸收从重质石脑油等处理的过程中流出的无机氯化物，以及来自原油的无机氯化物，难以粉化 并在吸收氯化物后软化。 根据本发明的固体氯化物吸收剂包含氧化锌，多孔耐火无机物和惰性粘合剂，使用寿命长，几乎不释放吸收的氯化物。

公开(公告)号：US06190635B1

公开(公告)日：2001-02-20

申请号：US09126102

申请日：1998-07-30

申请人： Jean Ollivier ,  Rene Clair ,  Denise Molines ,  Marc Ferrigno

发明人： Jean Ollivier ,  Rene Clair ,  Denise Molines ,  Marc Ferrigno

IPC分类号： C01B707

CPC分类号： C07C303/44 ,  C01B7/0706 ,  C01B7/0737 ,  C07C303/16 ,  C07C309/04 ,  C07C309/80

摘要： In order to remove the methanesulphonyl chloride entrained by the gaseous HCl by-product, an amount of water ranging from 0.01 to 20%, relative to the mass of HCl to be treated, is injected into the HCl gas flow and the temperature is lowered to a value below or equal to 15° C.

摘要翻译： 为了除去由气态HCl副产物夹带的甲磺酰氯，将相对于待处理的HCl的质量为0.01至20％的水的量注入HCl气流中，并将温度降至 低于或等于15°C的值

公开(公告)号：US06183720B2

公开(公告)日：2001-02-06

申请号：US09056765

申请日：1998-04-08

申请人： Thierry Laederich ,  Hervé Dulphy

发明人： Thierry Laederich ,  Hervé Dulphy

IPC分类号： C01B707

CPC分类号： C01B7/195 ,  C01B7/0731 ,  C01C1/022 ,  C01P2006/80

摘要： A process for producing a high-purity liquid chemical is provided. A chemical gas is successively purified over first and second purification columns by passing, countercurrently, a scrubbing solution of initially deionized high-purity water through the first and second purification columns, or by passing, countercurrently, a first scrubbing solution of initially deionized high-purity water through the first column and a second scrubbing solution of initially deionized water through the second column. Each of the scrubbing solutions gradually becomes a spent scrubbing solution loaded with impurity. A high-purity chemical gas leaves the second purification column with a low content of metallic elements. The high-purity chemical gas is subsequently dissolved in a liquid in a dissolution column including a top and a bottom. The liquid at the bottom of the dissolution column is collected and continuously recirculated, and is enriched with purified chemical gas, thereby forming a high-purity liquid chemical. The high-purity liquid chemical is subsequently distributed when a desired concentration of dissolved gas has been reached.

摘要翻译： 提供了一种生产高纯度液体化学品的方法。 通过使第一和第二纯化塔逆流通过初始去离子高纯水的洗涤溶液，或通过逆流通过第一和第二纯化塔的初始去离子水的第一洗涤溶液， 通过第一塔的纯净水和初始去离子水通过第二塔的第二洗涤溶液。 每个洗涤溶液逐渐变成装有杂质的废擦洗溶液。 高纯度化学气体离开具有低含量金属元素的第二纯化塔。 随后将高纯度化学气体溶解在包括顶部和底部的溶解柱中的液体中。 将溶解塔底部的液体收集并连续循环，并用纯化学气体富集，从而形成高纯度液体化学品。 随后，当达到所需浓度的溶解气体时，高纯度液体化学品随后分布。

公开(公告)号：US06540973B1

公开(公告)日：2003-04-01

申请号：US09513944

申请日：2000-02-28

申请人： Masakazu Sasaki ,  Tomomichi Tomita ,  Tokuo Oike ,  Yuzuru Yanagisawa

发明人： Masakazu Sasaki ,  Tomomichi Tomita ,  Tokuo Oike ,  Yuzuru Yanagisawa

IPC分类号： C01B707

CPC分类号： C01B7/0712 ,  B01D3/146

摘要： The process according to the invention comprises bringing gaseous hydrogen chloride in a non-condensable gas into contact with an absorbing medium selected from water or a dilute aqueous hydrogen chloride solution in an absorption column to cause the medium to absorb the gaseous hydrogen chloride, and subjecting the resultant absorbed solution to distillation in the presence of a salt having a salting-out effect to produce anhydrous hydrogen chloride.

摘要翻译： 根据本发明的方法包括将不可冷凝气体中的气态氯化氢与吸收塔中选自水或稀氯化氢水溶液的吸收介质接触，使介质吸收气态氯化氢， 所得到的吸收的溶液在具有盐析效应的盐存在下蒸馏以产生无水氯化氢。

公开(公告)号：US06451280B1

公开(公告)日：2002-09-17

申请号：US09531963

申请日：2000-03-21

申请人： Albert Lebl

发明人： Albert Lebl

IPC分类号： C01B707

CPC分类号： C23G1/36

摘要： A process for regenerating spent acid liquor feeds an acid liquor into a reactor having a first heating zone for evaporating a substantial portion of the liquid from the spent acid to produce acid vapors and metal salts without decomposing the acid. The metal salts are transferred to a second heating zone where the salts are roasted to form metal oxides. The acid vapors from the primary roasting furnace are then transferred to an absorption column to regenerate the acid. The first heating zone is operated at a temperature below the decomposition temperature of the acid and the metal salts. The second heating zone operates at a higher temperature to completely oxidize the metal salts.

公开(公告)号：US06290927B1

公开(公告)日：2001-09-18

申请号：US08586874

申请日：1996-01-24

申请人： Ragnar Wold

发明人： Ragnar Wold

IPC分类号： C01B707

CPC分类号： C01B7/0706

摘要： A method of removing iron and halogen coloring materials from hydrochloric acid, by removing iron from the hydrochloric acid, and thereafter adding a nitrogen containing reducing agent to the hydrochloric acid.

摘要翻译： 从盐酸中除去铁和卤素着色材料的方法，通过从盐酸中除去铁，然后向该盐酸中加入含氮还原剂。