CN116675592A - 一种氯气氯化环戊烷生产高纯度氯代环戊烷的方法 - Google Patents
一种氯气氯化环戊烷生产高纯度氯代环戊烷的方法 Download PDFInfo
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- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 title claims abstract description 30
- NDTCXABJQNJPCF-UHFFFAOYSA-N chlorocyclopentane Chemical compound ClC1CCCC1 NDTCXABJQNJPCF-UHFFFAOYSA-N 0.000 title claims abstract description 27
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000000460 chlorine Substances 0.000 title claims abstract description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 238000004821 distillation Methods 0.000 claims abstract description 3
- 239000012629 purifying agent Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- 150000001940 cyclopentanes Chemical class 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 239000011941 photocatalyst Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000007146 photocatalysis Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- UNFUYWDGSFDHCW-UHFFFAOYSA-N monochlorocyclohexane Chemical compound ClC1CCCCC1 UNFUYWDGSFDHCW-UHFFFAOYSA-N 0.000 description 2
- 238000010850 salt effect Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 1
- BKYKPTRYDKTTJY-UHFFFAOYSA-N 6-chloro-3-(cyclopentylmethyl)-1,1-dioxo-3,4-dihydro-2H-1$l^{6},2,4-benzothiadiazine-7-sulfonamide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(S(N2)(=O)=O)=C1NC2CC1CCCC1 BKYKPTRYDKTTJY-UHFFFAOYSA-N 0.000 description 1
- ZSGDIMCFCJWUNY-UHFFFAOYSA-N C1CCCC1.[Cl] Chemical compound C1CCCC1.[Cl] ZSGDIMCFCJWUNY-UHFFFAOYSA-N 0.000 description 1
- 241000255579 Ceratitis capitata Species 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 239000000877 Sex Attractant Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000002220 antihypertensive agent Substances 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 239000012320 chlorinating reagent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- DCKVRNILNZRZTH-UHFFFAOYSA-N cyclopentane;hydrochloride Chemical compound Cl.C1CCCC1 DCKVRNILNZRZTH-UHFFFAOYSA-N 0.000 description 1
- ZBPVOOPHLCDCEQ-UHFFFAOYSA-N cyclopentanol;hydrochloride Chemical group Cl.OC1CCCC1 ZBPVOOPHLCDCEQ-UHFFFAOYSA-N 0.000 description 1
- FVXXGFHWUKHADY-UHFFFAOYSA-N cyclopentene;hydrochloride Chemical compound Cl.C1CC=CC1 FVXXGFHWUKHADY-UHFFFAOYSA-N 0.000 description 1
- 229960003206 cyclopenthiazide Drugs 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940124567 diuretic antihypertensive agent Drugs 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000002316 fumigant Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- AHJRHEGDXFFMBM-UHFFFAOYSA-N palbociclib Chemical compound N1=C2N(C3CCCC3)C(=O)C(C(=O)C)=C(C)C2=CN=C1NC(N=C1)=CC=C1N1CCNCC1 AHJRHEGDXFFMBM-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了氯气在光催化下直接氯化环戊烷,生产高纯度氯代环戊烷的方法。制得的氯代环戊烷,经普通精蒸馏纯度仅能达到98%左右。经多次精馏分析,不能达到较高纯度的原因是形成一个固定组份的物质。经分析、试验选择了一种物料,加入后改变了该物质的性质,用普通精馏方法再精馏即可得到含量>99%的高纯度的氯代环戊烷。
Description
技术领域:
本发明涉及一种氯气在光催化下直接氯化环戊烷,生产高纯度氯代环戊烷的方法。
背景技术:
氯代环戊烷,C5H11Cl,分子量90.55g/mol,常温下为无色易燃液体,有刺激性气味,能与苯、醚、醇和其氯化物相溶,几乎不溶于水。比重1.002,溶点15℃,沸点113.5℃,蒸汽密度3.5kg/m3,闪点15.56℃。遇明火、高温、氧化剂易燃易爆。遇热分解出有毒的光气,是一种基本精细化工产品,是重要有机合成原料,用途较广泛。它主要用于医药中间体,还用于抗癌药如Palbociclib(PD-0332991)、合成利尿降压药环戊甲噻嗪的原料、抗感冒药、还可用作地中海果蝇性引诱剂的重要中间体,农药熏蒸剂、作为催化剂提高烯烃环氧化反应催化剂活性及反应收率。
近年来,随着化工产业的迅速发展,其需求量也在日趋增加。氯代环戊烷的主要生产工艺,按原料路线分,有三种方法:
(1)环戊醇氯化氢取代法,环戊醇氯化氢取代法常用氯化剂如盐酸、三氯化磷等,收率可达71%。但对设备腐蚀严重,废酸多,污染环境。
(2)环戊烯氯化氢加成法:工艺路线简明,收率高,但原料难得、且价格较高,反应时间长,也产生大量稀盐酸难于处理。
(3)环戊烷氯气直接光催化氯化法。原料环戊烷易得,催化剂不用回收,虽有高沸物(多氯化物)但能控制,数量较少。最大优点可用氯代环己烷生产设备生产,一套设备可生产两种产品,投资小,成本低,便以多品种均衡生产。
以环戊烷为原料,用氯气在光催化条件下直接氯化生产氯代环戊烷,得到氯代环戊烷含量为40%~60%,经初步精馏得到,含量最高为98%左右氯代环戊烷,很难再提高。在分析了实验数据,认为产物形成一固定组成的物质,单靠普通精馏是得不到99%以上高纯度的氯代环戊烷。对难分离的组份,一般情况下可用①盐效应分离。往溶液中加入一定量的盐,由于盐与溶剂间的相互作用,导致溶液固液相分层,将固液分离,再精馏从而达到高纯度的产品。用这一方法,必须增加固、液或液、液分离设备,固体废料难于处理。②萃取精馏,向原料液中加入第三组分(称为萃取剂或溶剂),以改变原有组分间的相对挥发度而得以分离,其要求萃取剂的沸点较原料液中各组分的沸点高很多。为回收萃取剂,需要再加回收塔。设备和耗能增加。本发明采取加入液体净化剂,再精馏,用普通精馏方法即可得到含量>99%的氯代环戊烷。
发明内容:
经理论分析及实验证明,选择加入一种净化剂,改变物料性质,用普通精馏方法,即可获得含量>99%的高纯度氯代环戊烷。此净化剂有如下特征:①是一种溶剂,如:乙酸甲酯、 DMF(N,-N二甲基甲酰胺)、苯及苯的化合物等。②与原料环戊烷、氯代环戊烷能相溶,不分层。③价格不贵使用成本较低。④毒性不大,使用比较安全。⑤使用普通精馏方法即可分离获得高纯度氯代环戊烷。
具体实施方式:
实施例1:
以1000mL三口烧瓶作为环戊烷氯化容器,侧口插入一玻璃管至其底部用作通氯,另一侧口插入温度计,中间口接一冷凝器再连接一长管橡胶管,将该橡胶管连至室外,插入装有 NaOH稀溶液的500mL烧杯中,用以吸收排出的氯化氢和未反应的氯气。将三口瓶放入水浴锅中,在水浴锅下放置自动温度控制的加热器。装置经检漏合格后,安装完成。将600mL环戊烷投入三口瓶中,打开磁力搅拌器并选择慢速搅拌,控制液温为25℃时,开始缓缓通入氯气。每20~30分钟取一次氯化液样品并用气相色谱仪分析含量。通氯时间1h7min,氯化反应结束。氯化液各组分质量百分数如下:环戊烷39.90%、氯代环戊烷56.69%、高沸物3%。将氯化液移入精馏装置(用1000mL三口瓶,中间口安装一个长600cm刺形精馏器,上接冷凝器和接收瓶。1000mL三口瓶一侧安装分度值为0.2℃的玻璃温度计。经初次精馏后,氯代环戊烷含量为98.88%。再加入50ml的乙酸甲酯,进行二次精馏,获得氯代环戊烷含量为99.06%的产品。
实施例2:
按以上装置投入600ml环戊烷通氯时间3h,其氯化液环戊烷含量为33.91%、氯代环戊烷58.71%、多氯化物(高沸物)为7%。第一次精馏氯代环戊烷含量为98.66%。向物料中再加入50ml的DMF,进行精馏得氯代环戊烷含量为99.99%的产品。
经过以上小试,该工艺己实现了大批量生产。
用氯气在光催化条件下直接氯化环戊烷生产氯代环戊烷,得到氯代环戊烷含量为40%~60%的氯化液,经精馏仅能得到含量为98%的氯代环戊烷。本发明不用采用盐效应分离、萃取精馏,而采用加入液体净化剂的方法,用普通精馏就可得到含量>99%的氯代环戊烷,用生产氯代环己烷的设备也可生产,节约设备投资。一套设备可生产两种产品,以适应市场变化,灵活生产,降低成本。
Claims (5)
1.氯气直接氯化环戊烷生产氯代环戊烷,光催化剂为蓝光灯、日光灯、紫外灯(对健康有害)。
2.氯气直接氯化环戊烷生产氯代环戊烷,氯化温度控制在25℃~50℃,选取最佳温度为30℃~40℃,氯化温度对产品质量影响不大。
3.环戊烷通氯得到氯化液中的氯代环戊烷含量应控制在40%~60%,以减少多氯化物的生成。最好控制高沸物在氯化物总量的5%以下,以降低生产成本。
4.氯化液初次精馏应控制得到的产物含氯代环戊烷为90%~95%为宜,当然越高越好。
5.二次精馏加入净化剂的量,为投入物料重量的5%~10%,净化剂回收后,还可重复使用。
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