CN102026706A - 用于从气流中吸收氯的方法 - Google Patents
用于从气流中吸收氯的方法 Download PDFInfo
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- chlorine
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- hydrochloric acid
- chloride
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- 239000000460 chlorine Substances 0.000 title claims abstract description 27
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 26
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 45
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 10
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims abstract description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 229910052786 argon Inorganic materials 0.000 claims abstract description 3
- 239000001307 helium Substances 0.000 claims abstract description 3
- 229910052734 helium Inorganic materials 0.000 claims abstract description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 10
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 229960002163 hydrogen peroxide Drugs 0.000 description 12
- 239000002351 wastewater Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 239000002250 absorbent Substances 0.000 description 7
- 230000002745 absorbent Effects 0.000 description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- BJYHBJUWZMHGGQ-UHFFFAOYSA-N 1,2-dichloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC(Cl)=C1Cl BJYHBJUWZMHGGQ-UHFFFAOYSA-N 0.000 description 1
- DGRVQOKCSKDWIH-UHFFFAOYSA-N 1-chloro-2-(trifluoromethyl)benzene Chemical class FC(F)(F)C1=CC=CC=C1Cl DGRVQOKCSKDWIH-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- RTACEFMOLQFJNG-UHFFFAOYSA-N [Cl].OO Chemical compound [Cl].OO RTACEFMOLQFJNG-UHFFFAOYSA-N 0.000 description 1
- GCXUHGZBBGZTII-UHFFFAOYSA-N a828071 Chemical compound ClC(Cl)=O.ClC(Cl)=O GCXUHGZBBGZTII-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229950005499 carbon tetrachloride Drugs 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8659—Removing halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
Abstract
本发明的目的是一种用于在水中从选自氮气、氧气、氩气、氦气和它们的混合物中的气流中吸收氯的方法，其中通过受控加入过氧化氢来抑制次氯酸形成并形成盐酸。
Description
技术领域
本发明涉及一种用于在水中通过受控加入(regulated addition)过氧化氢而从气流中吸收氯的方法。
背景技术
在高温处理氯化物的工业工艺(例如有机氯化物的燃烧反应、氯化反应和水解反应)中，形成氯化氢，根据Deacon平衡其在任何氧存在下形成元素氯。这种元素氯存在于废气流中，必须从废气流中去除以符合排放限制。
由于氯在水中的溶解度较低，通常用碱性吸收剂如氢氧化钠溶液来吸收氯，如以下反应式(1)和(2)所述：
Cl2+H2O-----＞HCl+HClO (1)
HCl+HClO+2NaOH-----＞NaCl+NaClO+H2O (2)
然而，其它碱性吸收剂(石灰乳、氨、胺、碳酸盐、碳酸氢盐等)也是可能的。
在所有碱性吸收过程中，驱动力是盐的形成(氯化物和次氯酸盐)。这些过程的结果是形成含次氯酸盐的盐溶液，其得到有限范围的应用(如氯漂白)或在适当处理后被加到废水中。为此，必须减少形成的次氯酸盐，这典型地通过加入亚硫酸盐、硫代硫酸盐、过氧化氢和其它物质来实现。例如，在EP0406675中，使用由碳酸氢钠和亚硫酸氢钠组成的吸收溶液。
酸性介质中的吸收也已描述。在这种情况下，通常使用低氧化态的金属盐(例如Fe2+、Cu1+等)作为吸收剂，然后由氯将其转化为较高的氧化态(参见，例如DE-A 2545342)。
上述所有过程均形成仅具有有限的进一步应用的盐溶液。
此外已描述的是用有机溶剂分离出氯。例如，使用四氯甲烷、二氯甲苯、二氯三氟甲苯(dichlorobenzotrifluoride)等化合物。这些物质具有以下缺点：具有明显的蒸汽压力，其又必须从干净的气流中去除。
SU 697160描述一种用于净化含氯化硼、氯化钛、还有氯、氯化氢和碳酰氯(光气)的废气的方法。该方法在一个阶段需要浓盐酸并在下一阶段在盐酸溶液中需要过氧化氢作为吸收剂。该方法进一步的特征在于：它在工作时不产生废物因而不产生废水。所描述的是一个分批工艺，其中，最初首先装载(charge)35％浓盐酸和9-30％过氧化氢溶液，然后通入废气。
发明内容
本发明的一个目的是提供一种用于从气流中吸收氯(气)而得到可利用产品的简单的连续方法。
本发明提供一种用于在水中从选自氮气、氧气、二氧化碳、氩气、氦气和它们的混合物的气流中吸收氯(气)的方法，其中，通过受控加入过氧化氢来抑制次氯酸形成，并形成盐酸。
已发现，尽管氯(气)在水中的溶解度较低，但如果建立抑制依据反应式(1)形成次氯酸的条件，那么水也能够用于吸收含氯的气流。根据本发明的方法不需要在上游净化阶段(stage)的浓盐酸并且连续地进行。
已发现，在通过将氯引入水中而得到的盐酸中，吸收溶液中的氯，在添加过氧化氢后，反应产生盐酸，并且通过这种方式氯能够被限制(bound)在吸收剂中。在此基础上建立的连续的吸收装置产生不含任何盐的废水流，并且即便含有也只含有少量的次氯酸，但却含有可利用的盐酸。可以调控过氧化氢的加入使得形成的盐酸不含有任何次氯酸。
在根据本发明的方法中，优选根据来自于气相中氯浓度的要求，以受控方式最初加水并加入过氧化氢。本方法中形成的盐酸构成无盐的废水流，其不仅能作为废水排放而且使得在进一步处理中能够利用材料。
本方法中优选使用这样的气流，除了氯之外，其包括不大于10体积份，更优选不大于3体积份，尤其不大于1体积份的其它在水中可吸收的气体组分，各种情况均基于100体积份的氯。气流中其它在水中可吸收的气体组分可以是，例如氯化氢和氟化氢。
使用的气流尤其可以是空气。
在优选的实施方式中，含氯的气流连续地流经两个或多个段(区段，stages)，在这种情况下水相中过氧化氢的浓度优选在气流方向上增加。
为了从气流中吸收氯，可以使用本身已知的装置，例如板式塔(tray column)、乱堆填料塔(columns with random packings)和洗涤器(scrubber)如喷淋洗涤器、或湿式除尘器(wet-operated dust precipitator)。
本方法中形成的盐酸优选具有至少0.5％和至多18％浓度。本方法中形成的盐酸优选在进一步工艺中被利用。
具体实施方式
实施例
除非另外说明，所有的量和百分比均基于重量。
1a非本发明
使含氯的惰性气流通入用氢氧化钠溶液吸收循环操作的洗涤器。废水流入废水处理工序，其调节pH并在还原剂辅助下将NaOCl负载转化为NaCl，然后将其作为废水排放。所有分离出来的氯被转化成氯化钠然后被排放到废水中。该氯由此从整个系统中除去并流失。
1b本发明
使含氯的惰性气流通入一个或多个用盐酸吸收循环操作的洗涤器，其中注入或通过塔板加入水和过氧化氢。将得到的盐酸送到氯化氢吸收中。
2a非本发明
使含氯的惰性气流通入用pH调节的氢氧化钠溶液吸收循环操作的洗涤器。通过氧化还原受控加入过氧化氢，将形成的次氯酸钠转化为NaCl。含盐的废水流离开洗涤器。
2b本发明
使含氯的惰性气流通入一个或多个用盐酸吸收循环操作的洗涤器，其中在氧化还原和传导控制下注入和/或通过塔板加入水和过氧化氢。得到的盐酸在分离生产工艺中被利用。
3本发明
在37℃以及20mbar减压下，将含氯量1.7％、含氯化氢量0.017％、含二氧化碳量3.6％和含氮量71.2％的气流引入充满水的乱堆填料塔中。受控加入过氧化氢产生盐酸浓度2％的不含任何次氯酸的废水流。
Claims (5)
1.一种用于在水中从选自氮气、氧气、二氧化碳、氩气、氦气和它们的混合物的气流中吸收氯的方法，其中，通过受控加入过氧化氢来抑制次氯酸形成并且形成盐酸。
2.根据权利要求1所述的方法，其中，使用的所述气流除了氯之外还包括基于100体积份的氯不大于3体积份的在水中可吸收的其它气体组分。
3.根据权利要求1或2所述的方法，其中，使用的含氯的气流是空气。
4.根据权利要求1至3所述的方法，其中，所述含氯的气流连续通过两个或多个段。
5.根据权利要求1至4所述的方法，其中，用来吸收氯的装置是板式塔、乱堆填料塔、洗涤器或湿式除尘器。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008001795.7 | 2008-05-15 | ||
| DE102008001795A DE102008001795A1 (de) | 2008-05-15 | 2008-05-15 | Verfahren zur Absorption von Chlor aus Gasströmen |
| PCT/EP2009/055715 WO2009138401A1 (de) | 2008-05-15 | 2009-05-12 | Verfahren zur absorption von chlor aus gasströmen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102026706A true CN102026706A (zh) | 2011-04-20 |
| CN102026706B CN102026706B (zh) | 2014-06-25 |
Family
ID=40974484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980116772.9A Active CN102026706B (zh) | 2008-05-15 | 2009-05-12 | 用于从气流中吸收氯的方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8303687B2 (zh) |
| EP (1) | EP2276554B1 (zh) |
| JP (1) | JP5345676B2 (zh) |
| KR (1) | KR101249533B1 (zh) |
| CN (1) | CN102026706B (zh) |
| AT (1) | ATE546212T1 (zh) |
| DE (1) | DE102008001795A1 (zh) |
| WO (1) | WO2009138401A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017039A (zh) * | 2017-12-24 | 2018-05-11 | 江苏梅兰化工有限公司 | 二氟一氯甲烷副产hcl生产高纯盐酸的制备方法及装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10005673B2 (en) * | 2013-10-16 | 2018-06-26 | Saudi Basic Industries Corporation | Purification of carbon dioxide streams |
| EP3057684B1 (en) | 2013-10-16 | 2018-03-21 | Saudi Basic Industries Corporation | Process for the removal of chlorinated hydrocarbons from co2 |
| DE102014207160A1 (de) | 2014-04-15 | 2015-10-15 | Eos Gmbh Electro Optical Systems | Umluftfiltervorrichtung für eine Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160707A (en) * | 1989-08-25 | 1992-11-03 | Washington Suburban Sanitary Commission | Methods of and apparatus for removing odors from process airstreams |
| WO2007134717A1 (de) * | 2006-05-19 | 2007-11-29 | Bayer Materialscience Ag | Verfahren zur absorption von chlor aus einem chlor- und kohlendioxid enthaltenden gas |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1963946B2 (de) * | 1969-12-20 | 1972-02-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur herstellung von chlor |
| DE2138129A1 (de) * | 1971-07-30 | 1973-03-29 | Degussa | Verfahren zur herstellung von chlor |
| US3896213A (en) * | 1973-07-05 | 1975-07-22 | Olin Corp | Process for disposing of off-gases containing carbon dioxide and chlorine |
| DE2545342A1 (de) | 1975-10-09 | 1977-04-21 | Bayer Ag | Verfahren zur absorption von chlor |
| SU697160A1 (ru) | 1977-01-19 | 1979-11-15 | Предприятие П/Я Г-4232 | Способ очистки абгазов |
| DE3921714A1 (de) * | 1989-07-01 | 1991-01-10 | Hoechst Ag | Verfahren zur selektiven absorption von chlor aus co(pfeil abwaerts)2(pfeil abwaerts)-haltigen abgasen |
| CA2079633C (en) * | 1992-07-31 | 1998-04-28 | John Robert Jackson | Method for the preparation of chlorates from waste gas streams obtained from the production of chlorine dioxide |
| US5527517A (en) * | 1994-11-23 | 1996-06-18 | Philip Morris Incorporated | Liquid scrubbing of gas-phase contaminants |
| US5705140A (en) * | 1995-07-18 | 1998-01-06 | Transformation Technologies, Ltd. | Process for the transformation of halogenated refrigerant gases |
| US6409981B1 (en) * | 1997-04-25 | 2002-06-25 | Imperial Chemical Industries Plc | Process for removing chlorine from gas stream |
-
2008
- 2008-05-15 DE DE102008001795A patent/DE102008001795A1/de not_active Withdrawn
-
2009
- 2009-05-12 AT AT09745733T patent/ATE546212T1/de active
- 2009-05-12 JP JP2011508895A patent/JP5345676B2/ja active Active
- 2009-05-12 CN CN200980116772.9A patent/CN102026706B/zh active Active
- 2009-05-12 US US12/922,877 patent/US8303687B2/en active Active
- 2009-05-12 WO PCT/EP2009/055715 patent/WO2009138401A1/de active Application Filing
- 2009-05-12 KR KR1020107022974A patent/KR101249533B1/ko active IP Right Grant
- 2009-05-12 EP EP09745733A patent/EP2276554B1/de active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160707A (en) * | 1989-08-25 | 1992-11-03 | Washington Suburban Sanitary Commission | Methods of and apparatus for removing odors from process airstreams |
| WO2007134717A1 (de) * | 2006-05-19 | 2007-11-29 | Bayer Materialscience Ag | Verfahren zur absorption von chlor aus einem chlor- und kohlendioxid enthaltenden gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017039A (zh) * | 2017-12-24 | 2018-05-11 | 江苏梅兰化工有限公司 | 二氟一氯甲烷副产hcl生产高纯盐酸的制备方法及装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5345676B2 (ja) | 2013-11-20 |
| KR20100137508A (ko) | 2010-12-30 |
| CN102026706B (zh) | 2014-06-25 |
| WO2009138401A1 (de) | 2009-11-19 |
| US20110011263A1 (en) | 2011-01-20 |
| KR101249533B1 (ko) | 2013-04-01 |
| ATE546212T1 (de) | 2012-03-15 |
| JP2011520750A (ja) | 2011-07-21 |
| EP2276554B1 (de) | 2012-02-22 |
| EP2276554A1 (de) | 2011-01-26 |
| DE102008001795A1 (de) | 2009-11-19 |
| US8303687B2 (en) | 2012-11-06 |
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