CN1027163C - 碘或碘化物杂质的清除方法 - Google Patents
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- carboxylic acid
- anhydride
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- iodine
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- 238000000034 method Methods 0.000 title claims abstract description 47
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 title claims abstract description 19
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052740 iodine Inorganic materials 0.000 title claims abstract description 17
- 239000011630 iodine Substances 0.000 title claims abstract description 17
- 239000012535 impurity Substances 0.000 title claims abstract description 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 44
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 claims abstract description 21
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic acid anhydride Natural products CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 19
- 230000006315 carbonylation Effects 0.000 claims abstract description 14
- 238000005810 carbonylation reaction Methods 0.000 claims abstract description 14
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims abstract description 13
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical group [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 claims abstract description 7
- -1 heterocyclic aromatic nitrogen compounds Chemical class 0.000 claims abstract description 6
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 15
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 12
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 claims description 9
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 8
- 235000019260 propionic acid Nutrition 0.000 claims description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 6
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 3
- 150000002500 ions Chemical class 0.000 claims 2
- 239000002516 radical scavenger Substances 0.000 abstract description 13
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract description 4
- 229940071536 silver acetate Drugs 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229910052703 rhodium Inorganic materials 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 5
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 229910021612 Silver iodide Inorganic materials 0.000 description 2
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003939 radioactivation analysis Methods 0.000 description 2
- 229940045105 silver iodide Drugs 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical group [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JUMYIBMBTDDLNG-OJERSXHUSA-N hydron;methyl (2r)-2-phenyl-2-[(2r)-piperidin-2-yl]acetate;chloride Chemical compound Cl.C([C@@H]1[C@H](C(=O)OC)C=2C=CC=CC=2)CCCN1 JUMYIBMBTDDLNG-OJERSXHUSA-N 0.000 description 1
- BVJUXXYBIMHHDW-UHFFFAOYSA-N iodane Chemical compound I.I BVJUXXYBIMHHDW-UHFFFAOYSA-N 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001020 rhythmical effect Effects 0.000 description 1
- 229940099204 ritalin Drugs 0.000 description 1
- CYLMOXYXYHNGHZ-UHFFFAOYSA-M silver;propanoate Chemical compound [Ag+].CCC([O-])=O CYLMOXYXYHNGHZ-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/06—Reactor-distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Lubricants (AREA)
- Polyesters Or Polycarbonates (AREA)
- Paints Or Removers (AREA)
Abstract
一种清除用羰基化方法制得的羧酸或羧酸酐中所含的碘或可溶性碘化物杂质的方法,该方法包括下列两步骤:(a)在20~250℃下用一种无载体清除剂处理含有碘或可溶性碘化物杂质的不纯羧酸或羧酸酐,(b)然后使经过处理的羧酸或羧酸酐与清除剂分离;该方法的特点在于其所用的清除剂是由一种银盐组成的,没有同时使用三烷基膦、三芳基膦和杂环芳族氮化合物。适用于醋酸和醋酸酐的清除剂是醋酸银。
Description
本发明涉及一种清除羰基化产物中的碘或碘化物杂质的方法。本发明特别涉及清除用铑作催化剂使醇、烯烃或酯进行羰基化而制得的羧酸或羧酸酐中所含的碘或碘化物杂质的方法。
用铑/碘化物作催化剂使醇、烯烃和酯进行羰基化作用(例如分别由甲醇生成醋酸,由乙烯生成丙酸,由醋酸甲酯生成醋酸酐)的方法是众所周知的。羧酸或羧酸酐产物往往会保留碘化物(呈碘或可溶性碘化物状态),这种碘化物必须接着予以清除,这也是众所周知的。
人们已研究出许多清除碘化物的方法,而且其中有些方法已在采用羰基化工艺的工厂中获得工业应用。美国专利第4029553号描述了一种能制得高纯度醋酸的蒸馏方法,在所得的醋酸中碘化物含量少于20ppb(十亿分之二十)。美国专利第3772156号描述了另一种方法,这是一种双柱蒸馏法,使粗醋酸或是与碱或碱土金属化合物接触,或是与碱金属或碱土金属化合物和次磷酸一起接触。美国专利第3709795号则公开了一种清除醋酸中所含卤化物杂质的方法,该方法使用了一种象高锰酸钾那样的强无机氧化剂。最后这一种方法虽然是有效的,但不易在工业上实现。
其他引人注意的方法有使用银离子交换树脂的方法(EP196173)和使用过酸的方法(DE3612504)。
美国专利第4664753号公开了一种清除羰基化作用产物中所含的碘和可溶性碘化物杂质的特别有效的方法,所述的方法是使羰基化作用产物与一种混合物接触,该混合物是由(a)一种烷基膦或芳基膦或杂环芳族氮化合物和(b)一种选自铜、银、锌或镉的金属这两种组分组成的。
但美国专利第4664753号所述的方法带来这样的问题,即由于使用了这种双组分体系,羰基化作用的产物有可能被上述组分(a)沾污。因此,在保持有效的清除剂体系的同时,要解决防止羰基化作用的产物被沾污的问题。
因此,本发明提供了一种清除用羰基化方法制得的羧酸或羧酸酐中所含的碘或可溶性碘化物杂质的方法,该方法包括下列两步骤:(a)在20~250℃下用一种无载体清除剂处理含有碘或可溶性碘化物杂质的不纯羧酸或羧酸酐,(b)然后使经过处理的羧酸或羧酸酐与清除剂分离;该方法的特点在于所用的清除剂是由一种银盐组成的,没有同时使用三烷基膦、三芳基膦和杂环芳族氮化合物。
本发明的解决防止羰基化产物被沾污的问题的方法是从美国专利第4664753号中选用一种金属(银),它在没有同时使用膦或杂环芳族氮化合物的情况下更为有效。这是意想不到的,因为美国专利第4664753号建议(见实施例1和3)为了获得高纯度的产物必须使用膦。
任何银盐,只要它能与碘化物进行反应以生成不溶性碘化银,都可使用。但最好该银盐能溶于羧酸或羧酸酐。可能的话,最好使用具有与所处理的
羧酸一致的阴离子的银盐。例如处理醋酸时最好使用醋酸银,而处理丙酸时则应使用丙酸银。
如果银盐不溶于或微溶于所提纯的液体介质,也可使用银盐的悬浮液。在这种情况下宜使用细粒悬浮液。
本发明的方法特别适用于处理碘或可溶性碘化物杂质含量达300PPm的羧酸或羧酸酐。该方法中银可以碘化银的形式回收,或是清除,或是进行处理以使用再生成相当的银盐。本方法使清除剂与羧酸或羧酸酐一直保持接触,直至碘或碘化物杂质基本上清除为止。当本方法选用80~150℃温度时,合适的接触时间为10~100分钟。可将混合物搅拌,需要时也可搅动。一般,本发明的方法能使碘或可溶性碘化物杂质的含量约降低到100PPb以下,最好是降低到20PPb以下。
本发明的方法特别适用于提纯(a)由甲醇在以铑/碘化物作催化剂的情况下进行羰基化而制得的醋酸,(b)由乙烯在以铑/碘化物作催化剂的情况下进行羰基化而制得的丙酸和(c)由醋酸甲醋在以铑/碘化物作催化剂的情况下进行羰基化而制得的醋酸酐。但本方法同样也可用于以羧酸和羧酸酐为原料并使用碘化物敏感催化剂的反应的釜(例如醋酸乙烯单体的制造)。
现参照以下的实施例对本发明加以说明。间歇反应-一般方法使用一个装有Euro Eerm控制的加热外罩、热电偶插孔、两个宽的bore faps(开关,一个连接到Liebg冷凝器上,另一个连接到蒸馏头冷凝器和接受器上)的500毫升三颈圆底烧瓶。将450毫升不纯醋酸(碘化物含量用中子活化分析方法测定)、必需量的清除剂和少量防崩沸颗粒装入该烧瓶中。用氮冲洗冷凝器和蒸馏装置。
当开关仅对冷凝器打开时,该装置出现平缓的回流(徐沸)。一小时后,打开第二个开关,关闭第一个开关。回流增加,使处理的醋酸迅速蒸馏。在收集到90%的醋酸后停止试验。用中子活化分析法分析经过蒸馏的醋酸中的碘化物的总含量。
实施例1和A~C
将醋酸银与醋酸铜(Ⅱ价)和美国专利第4664753号的双清除剂体系进行比较。实施例A~C不是本发明的一部分。表1的结果表明醋酸银在没有使用膦的情况下具有意想不到的优越性。
表1
初始 最终
实施例 清除剂 清除剂用量 碘化物 碘化物 清除率
% W/W (PPb) (PPb) %
1 醋酸银 0.03 991 50±2 95
A 醋酸银+ 各为
三苯膦 0.03 662 653±40 0
B 醋酸铜
(Ⅱ价) 0.03 991 850±100 0
醋酸铜
C (Ⅱ价)+ 各为
三苯膦 0.03 1380 800±47 42
Claims (10)
1、一种清除用羰基化方法制备的羧酸或羧酸酐中所含的碘或可溶性碘化物杂质的方法,其特征在于,该方法包括下列两步骤:(a)在20-250℃下,在没有三烷基膦、三芳基膦和杂环芳族含氮化合物的存在下,用一种银盐处理含有碘或可溶性碘化物杂质的不纯羧酸或羧酸酐,(b)然后使经过处理的羧酸或羧酸酐与银盐分离。
2、权利要求1所述的方法,其中银盐的阴离子与羧酸或羧酸酐的阴离子是一致的。
3、权利要求1所述的方法,其中银盐为醋酸银。
4、权利要求1-3中任一权利要求所述的方法,其中不纯羧酸或羧酸酐所含的碘和可溶碘化物杂质量达总重的300ppm。
5、权利要求4所述的方法,其中经过处理的羧酸或羧酸酐中所含的碘和可溶性碘化物杂质量不到总重的100ppb。
6、权利要求1-3中任一权利要求所述的方法,其中羧酸或羧酸酐系选自醋酸、丙酸和醋酸酐。
7、权利要求1所术的方法,其中步骤(a)是在80-150℃下进行的。
8、权利要求5所述的方法,其中羧酸或羧酸酐系选自醋酸、丙酸和醋酸酐。
9、权利要求4所述的方法,其中羧酸或羧酸酐系选自醋酸、丙酸和醋酸酐。
10、权利要求1所述的方法,其中不纯羧酸或羧酸酐用一种银盐处理10-100分钟。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888822661A GB8822661D0 (en) | 1988-09-27 | 1988-09-27 | Removal of iodine/iodide impurities |
GB8822661.8 | 1988-09-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1041357A CN1041357A (zh) | 1990-04-18 |
CN1027163C true CN1027163C (zh) | 1994-12-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN89107524A Expired - Fee Related CN1027163C (zh) | 1988-09-27 | 1989-09-27 | 碘或碘化物杂质的清除方法 |
Country Status (12)
Country | Link |
---|---|
US (2) | US4975155A (zh) |
EP (1) | EP0361785B1 (zh) |
JP (1) | JP2820977B2 (zh) |
KR (1) | KR0133668B1 (zh) |
CN (1) | CN1027163C (zh) |
AT (1) | ATE109450T1 (zh) |
AU (1) | AU612514B2 (zh) |
CA (1) | CA1311247C (zh) |
DE (1) | DE68917240T2 (zh) |
ES (1) | ES2057139T3 (zh) |
GB (1) | GB8822661D0 (zh) |
NO (1) | NO172434C (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9022787D0 (en) * | 1990-10-19 | 1990-12-05 | British Petroleum Co Plc | Process |
GB9100216D0 (en) * | 1991-01-05 | 1991-02-20 | Bp Chem Int Ltd | Process |
GB9120902D0 (en) * | 1991-10-02 | 1991-11-13 | Bp Chem Int Ltd | Purification process |
GB9211671D0 (en) * | 1992-06-02 | 1992-07-15 | Bp Chem Int Ltd | Process |
JP3332594B2 (ja) | 1994-08-12 | 2002-10-07 | ダイセル化学工業株式会社 | 酢酸の精製方法 |
EP1114814A3 (en) * | 1999-12-29 | 2003-01-22 | Haldor Topsoe A/S | Method for the reduction of iodine compounds from a process stream |
CN101676927B (zh) | 2008-09-18 | 2012-06-06 | 山东新北洋信息技术股份有限公司 | 磁卡位密度控制装置及控制方法 |
CN104045548B (zh) * | 2013-03-14 | 2016-08-10 | 中国石油化工股份有限公司 | 一种脱除醋酸中微量碘离子的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3658467A (en) * | 1969-07-28 | 1972-04-25 | Atomic Energy Commission | System for total iodine retention |
BE791577A (fr) * | 1971-11-19 | 1973-05-17 | Monsanto Co | Purification de courants d'acide carboxylique |
DE3329781A1 (de) * | 1983-08-18 | 1985-02-28 | Hoechst Ag, 6230 Frankfurt | Verfahren zur abtrennung von jod und dessen verbindungen aus den bei der carbonylierung von dimethylether, methylacetat oder methanol erhaltenen carbonylierungsprodukten |
DE3331548A1 (de) * | 1983-09-01 | 1985-03-21 | Hoechst Ag, 6230 Frankfurt | Verfahren zur abtrennung von jod und dessen verbindungen aus den bei der carbonylierung von dimethylether, methylacetat oder methanol erhaltenen carbonylierungsprodukten |
US4615806B1 (en) * | 1985-03-07 | 1994-05-03 | Hoechst Co American | Removal of iodide compounds from non-aqueous organic media |
DE3612504A1 (de) * | 1985-09-30 | 1987-04-09 | Hoechst Ag | Verfahren zur abtrennung von jod und dessen verbindungen aus den bei der carbbonylierung von dimethylether, methylacetat oder methanol erhaltenden carbonylierungsprodukten |
JPH0714488B2 (ja) * | 1987-06-24 | 1995-02-22 | ユニオン・カーバイド・コーポレーション | カルボン酸からのハライドの除去 |
-
1988
- 1988-09-27 GB GB888822661A patent/GB8822661D0/en active Pending
-
1989
- 1989-09-19 US US07/409,126 patent/US4975155A/en not_active Ceased
- 1989-09-20 AU AU41635/89A patent/AU612514B2/en not_active Ceased
- 1989-09-21 AT AT89309597T patent/ATE109450T1/de not_active IP Right Cessation
- 1989-09-21 ES ES89309597T patent/ES2057139T3/es not_active Expired - Lifetime
- 1989-09-21 EP EP89309597A patent/EP0361785B1/en not_active Expired - Lifetime
- 1989-09-21 DE DE68917240T patent/DE68917240T2/de not_active Expired - Fee Related
- 1989-09-22 CA CA000612580A patent/CA1311247C/en not_active Expired - Lifetime
- 1989-09-25 JP JP1246617A patent/JP2820977B2/ja not_active Expired - Lifetime
- 1989-09-26 NO NO893816A patent/NO172434C/no unknown
- 1989-09-27 CN CN89107524A patent/CN1027163C/zh not_active Expired - Fee Related
- 1989-09-27 KR KR1019890013910A patent/KR0133668B1/ko not_active IP Right Cessation
-
1992
- 1992-02-06 US US07/831,889 patent/USRE34281E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2820977B2 (ja) | 1998-11-05 |
EP0361785A2 (en) | 1990-04-04 |
US4975155A (en) | 1990-12-04 |
JPH02129142A (ja) | 1990-05-17 |
USRE34281E (en) | 1993-06-15 |
CN1041357A (zh) | 1990-04-18 |
EP0361785B1 (en) | 1994-08-03 |
ES2057139T3 (es) | 1994-10-16 |
NO893816L (no) | 1990-03-28 |
KR0133668B1 (ko) | 1998-04-21 |
GB8822661D0 (en) | 1988-11-02 |
NO893816D0 (no) | 1989-09-26 |
KR900004667A (ko) | 1990-04-12 |
DE68917240D1 (de) | 1994-09-08 |
ATE109450T1 (de) | 1994-08-15 |
NO172434C (no) | 1993-07-21 |
AU4163589A (en) | 1990-04-05 |
DE68917240T2 (de) | 1994-11-24 |
EP0361785A3 (en) | 1991-10-09 |
NO172434B (no) | 1993-04-13 |
AU612514B2 (en) | 1991-07-11 |
CA1311247C (en) | 1992-12-08 |
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