JPH021809B2 - - Google Patents
Info
- Publication number
- JPH021809B2 JPH021809B2 JP57045814A JP4581482A JPH021809B2 JP H021809 B2 JPH021809 B2 JP H021809B2 JP 57045814 A JP57045814 A JP 57045814A JP 4581482 A JP4581482 A JP 4581482A JP H021809 B2 JPH021809 B2 JP H021809B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon disulfide
- isoprene
- anion exchange
- basic anion
- exchange resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 102
- 229930195733 hydrocarbon Natural products 0.000 claims description 33
- 150000002430 hydrocarbons Chemical class 0.000 claims description 29
- 239000003957 anion exchange resin Substances 0.000 claims description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- -1 C 5 hydrocarbons Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 44
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 239000003708 ampul Substances 0.000 description 4
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 4
- 238000000895 extractive distillation Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical group C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 239000002808 molecular sieve Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000011437 continuous method Methods 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- AWFYPPSBLUWMFQ-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(1,4,6,7-tetrahydropyrazolo[4,3-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)NN=C2 AWFYPPSBLUWMFQ-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】
本発明は二硫化炭素を含有するイソプレン等
C5炭化水素あるいはC5炭化水素留分を塩基性陰
イオン交換樹脂と接触せしめて二硫化炭素を除去
するC5炭化水素の精製方法に関するものである。[Detailed description of the invention] The present invention relates to isoprene containing carbon disulfide, etc.
The present invention relates to a method for purifying C5 hydrocarbons, in which carbon disulfide is removed by contacting C5 hydrocarbons or a C5 hydrocarbon fraction with a basic anion exchange resin.
ナフサ、灯油、軽油などの熱分解によつて得ら
れるC5炭化水素留分には、パラフイン系、モノ
オレフイン系及びジオレフイン系の炭化水素が主
に含まれており、例えばイソプレン、ピペリレ
ン、シクロペンテンなどは抽出蒸留法によつて分
離できることが知られている。 The C5 hydrocarbon fraction obtained by thermal cracking of naphtha, kerosene, light oil, etc. mainly contains paraffinic, monoolefinic, and diolefinic hydrocarbons, such as isoprene, piperylene, cyclopentene, etc. It is known that it can be separated by extractive distillation.
一般に、C5炭化水素留分は二硫化炭素、硫化
水素、メルカプタン類などを微量含有しているこ
とが多く、この中でも特に二硫化炭素は他の硫黄
化合物に比較して含有量も多く、また蒸留、抽出
蒸留などの分離精製工程においても除去されにく
いために分離された製品中に同伴してくることに
なる。この二硫化炭素は、分離された製品、例え
ばイソプレンを重合用モノマーとして使用する際
に反応を阻害する原因となるので、製品からでき
る限り除去することが好ましい。 In general, C5 hydrocarbon fractions often contain trace amounts of carbon disulfide, hydrogen sulfide, mercaptans, etc. Among these, carbon disulfide has a particularly high content compared to other sulfur compounds, and Since it is difficult to remove even in separation and purification processes such as distillation and extractive distillation, it ends up being entrained in the separated product. Since this carbon disulfide causes inhibition of the reaction when the separated product, for example isoprene, is used as a monomer for polymerization, it is preferable to remove it from the product as much as possible.
二硫化炭素は石炭ガスやベンゼンなどにも不純
物として比較的多量に含まれていることが多く、
これらの製品から二硫化炭素を除去する手段とし
て、例えば活性炭、モレキユラシーブ、シリカゲ
ルを使用して除去する方法、アミン類と二硫化炭
素との反応により除去する方法（例えば米国特許
第2475331号、同第2490840号）などが知られてい
る。 Carbon disulfide is often contained in relatively large amounts as an impurity in things such as coal gas and benzene.
Carbon disulfide can be removed from these products by, for example, using activated carbon, molecular sieves, or silica gel, or by reacting amines with carbon disulfide (for example, U.S. Pat. No. 2,475,331; 2490840) are known.
しかし、これらの方法はC5炭化水素中の二硫
化炭素を除去する手段、特に製品イソプレン等中
の二硫化炭素を重合用モノマーとして使用できる
濃度まで除去する手段としては必ずしも好ましい
方法とはいえない。すなわち、活性炭、シリカゲ
ル、モレキユラーシーブなどを使用する吸着法は
二硫化炭素の選択性に難があり、比較的選択性の
高いモレキユラーシーブを用いる場合において
も、使用後に加熱してモレキユラーシーブを再生
する際に吸着された二硫化炭素と共存するイソプ
レン、ピペリレンなどのジオレフイン類の重合を
防止することが困難である。また、アミン類を分
散させたホワイト油、ストロー油などの炭化水素
油を用いてスクラバー中で洗浄する方法では、二
硫化炭素の除去効率を上げるために多量のアミン
類が必要となるほか、洗浄液の精製及び回収設備
が複雑になるなどの欠点があつた。 However, these methods are not necessarily suitable for removing carbon disulfide from C5 hydrocarbons, especially for removing carbon disulfide from products such as isoprene to a concentration that can be used as a monomer for polymerization. . In other words, adsorption methods using activated carbon, silica gel, molecular sieves, etc. have difficulty in selecting carbon disulfide, and even when using molecular sieves, which have relatively high selectivity, they are heated after use to remove the molecules. It is difficult to prevent the polymerization of diolefins such as isoprene and piperylene that coexist with adsorbed carbon disulfide when regenerating the sieve. In addition, cleaning methods using hydrocarbon oils such as white oil and straw oil in which amines are dispersed in a scrubber require a large amount of amines in order to increase the removal efficiency of carbon disulfide. There were drawbacks such as complicated purification and recovery equipment.
従つて、本発明の主な目的はイソプレン等C5
炭化水素あるいはC5炭化水素留分中に含有され
る二硫化炭素を除去する方法にありこの目的は二
硫化炭素を含有するイソプレン等C5炭化水素あ
るいは炭化水素の熱分解によつて得られるC5炭
化水素留分を塩基性陰イオン交換樹脂と液相で接
触せしめることにより達成される。本発明のこの
方法によれば簡略化された工程によつて効率よく
二硫化炭素を除去する方法が提供される。 Therefore, the main object of the present invention is to prepare isoprene etc.
The purpose of this method is to remove carbon disulfide contained in hydrocarbons or C5 hydrocarbon fractions, and its purpose is to remove C5 hydrocarbons such as isoprene containing carbon disulfide or C5 hydrocarbons obtained by thermal decomposition of hydrocarbons. This is achieved by contacting the 5 hydrocarbon fractions with a basic anion exchange resin in the liquid phase. According to this method of the present invention, a method for efficiently removing carbon disulfide through simplified steps is provided.
本発明において使用されるC5炭化水素留分は
炭化水素の熱分解によつて得られる主にパラフイ
ン系、モノオレフイン系及びジオレフイン系炭化
水素を含有する混合物であり、他に少量のアセチ
レン系炭化水素を含有するほか、通常500ppm以
下、多い場合には1000ppm程度の二硫化炭素を含
有する。また、本発明においては予め蒸留、抽
出、抽出蒸留などの手段によつて前記C5炭化水
素留分からの分離された二硫化炭素を含有する任
意の留分を使用することができる。 The C5 hydrocarbon fraction used in the present invention is a mixture obtained by thermal decomposition of hydrocarbons and mainly contains paraffinic, monoolefinic, and diolefinic hydrocarbons, with a small amount of acetylenic hydrocarbons. In addition to containing hydrogen, it usually contains less than 500 ppm, and in some cases about 1000 ppm of carbon disulfide. Further, in the present invention, any fraction containing carbon disulfide that has been previously separated from the C5 hydrocarbon fraction by means such as distillation, extraction, or extractive distillation can be used.
本発明において使用される塩基性陰イオン交換
樹脂としては第４級アンモニウム基を交換基とす
る型および型の強塩基性陰イオン交換樹脂、
第１級、第２級または第３級アミンを交換基とす
る弱塩基性陰イオン交換樹脂が相当するが、これ
らのうち弱塩基性陰イオン交換樹脂は二硫化炭素
の除去効率にすぐれるので賞用される。 The basic anion exchange resins used in the present invention include strongly basic anion exchange resins of types and types having a quaternary ammonium group as an exchange group;
Weakly basic anion exchange resins that use primary, secondary, or tertiary amine as an exchange group correspond to weakly basic anion exchange resins, but among these, weakly basic anion exchange resins have excellent carbon disulfide removal efficiency. Awarded.
本発明の精製方法は二硫化炭素を含有するC5
炭化水素留分の液体を塩基性陰イオン交換樹脂の
固層と接触させればよく、アミン類を用いる除去
の場合に必要な反応生成物の除去工程が不要であ
る。従つて、C5炭化水素留分から抽出蒸留で得
られる二硫化炭素を含むイソプレンは本発明の方
法で処理することにより、その後の精製工程を経
ることなく重合用モノマーとして、そのまま使用
することが可能となる。 The purification method of the present invention uses C5 containing carbon disulfide.
It is only necessary to bring the liquid hydrocarbon fraction into contact with the solid layer of the basic anion exchange resin, and there is no need for a reaction product removal step that is required in the case of removal using amines. Therefore, by treating isoprene containing carbon disulfide obtained by extractive distillation from a C5 hydrocarbon fraction by the method of the present invention, it is possible to use it as it is as a monomer for polymerization without going through any subsequent purification steps. becomes.
本発明で使用する塩基性陰イオン交換樹脂は再
生による賦活により再使用が可能がある。すなわ
ち、多量の二硫化炭素の除去により塩基性陰イオ
ン交換樹脂の除去能力は低下してくるがこのよう
に失活した塩基性陰イオン交換樹脂をカ性ソーダ
のメタノール溶液等で処理すれば除去能力の再
生、賦活が可能であり、従来方法に比較して経済
的利点を有する。 The basic anion exchange resin used in the present invention can be reused by activation through regeneration. In other words, the removal ability of the basic anion exchange resin decreases due to the removal of a large amount of carbon disulfide, but it can be removed by treating the deactivated basic anion exchange resin with a methanol solution of caustic soda. Capacity can be regenerated and activated, and has economic advantages compared to conventional methods.
本発明の精製方法は二硫化炭素を含有するC5
炭化水素あるいはC5炭化水素留分中に塩基性陰
イオン交換樹脂を加える回分式、または塩基性陰
イオン交換樹脂を充填した固定層に連続的に二硫
化炭素を含有するC5炭化水素あるいはC5炭化水
素留分を通す連続式のいずれの方法をも採用する
ことができる。工業的には作業の容易さなどの理
由により連続式の方法が賞用される。また、処理
の条件についても特に制限はなく、温度は室温で
よいが必要に応じ加温することも可能である。 The purification method of the present invention uses C5 containing carbon disulfide.
A batch method in which a basic anion exchange resin is added to the hydrocarbon or C 5 hydrocarbon fraction, or a C 5 hydrocarbon or C 5 hydrocarbon containing carbon disulfide continuously in a fixed bed filled with a basic anion exchange resin. 5 Any continuous method of passing the hydrocarbon fraction can be employed. Industrially, continuous methods are preferred for reasons such as ease of operation. Further, there are no particular limitations on the conditions for the treatment, and the temperature may be room temperature, but it is also possible to heat it if necessary.
次に、本発明を実施例により具体的に説明す
る。 Next, the present invention will be specifically explained using examples.
実施例 １
二硫化炭素88ppmを含む下記組成のC5炭化水
素留分200ｇと乾燥した弱塩基性陰イオン交換樹
脂（商品名ダイヤイオンWA20，三菱化成工業株
式会社製）50ｇとをアンプル中で５時間振盪させ
た。処理後、C5炭化水素留分中の二硫化炭素を
分析したところ実質0ppmであつた。Example 1 200 g of a C5 hydrocarbon fraction having the following composition containing 88 ppm of carbon disulfide and 50 g of a dry weakly basic anion exchange resin (trade name Diaion WA20, manufactured by Mitsubishi Chemical Industries, Ltd.) were mixed in an ampoule. Shake for an hour. After treatment, carbon disulfide in the C5 hydrocarbon fraction was analyzed and found to be essentially 0 ppm.
成 分 重量％
イソペンタン 15.0
ｎ―ペンタン 22.1
ペンタン類 12.2
イソプレン 15.5
１，３―ペンタジエン 8.7
シクロペンテン 1.8
シクロペンタジエン 5.1
ジシクロペンタジエン 9.5
その他C5炭化水素 9.6
C5炭化水素 0.5
実施例 ２
二硫化炭素22ppmを含むイソプレン50ｇと型
強塩基性陰イオン交換樹脂（商品名ダイヤイオン
PA316、三菱化成工業株式会社製）の対イオンで
ある塩素イオンを10％のカ性ソーダ水溶液で処理
し水洗後乾燥したもの５ｇとをアンプル中で30分
間振盪した後、イソプレン中の二硫化炭素の濃度
を分析したところ7.5ppmであつた。 Ingredient weight% Isopentane 15.0 n-pentane 22.1 Pentanes 12.2 Isoprene 15.5 1,3-pentadiene 8.7 Cyclopentene 1.8 Cyclopentadiene 5.1 Dicyclopentadiene 9.5 Other C5 hydrocarbons 9.6 C5 hydrocarbons 0.5 Example 2 Contains 22 ppm of carbon disulfide 50g of isoprene and strong basic anion exchange resin (product name: Diaion)
PA316 (manufactured by Mitsubishi Chemical Corporation) was treated with a 10% caustic soda aqueous solution to remove chlorine ions, which were washed with water and dried. After shaking in an ampoule for 30 minutes, carbon disulfide in isoprene was removed. When the concentration was analyzed, it was 7.5 ppm.
実施例 ３
実施例２において、型強塩基性陰イオン交換
樹脂を型強塩基性陰イオン交換樹脂（商品名ダ
イヤイオンPA416、三菱化成工業株式会社製）に
代えた以外は同様の処理を行つたところ、イソプ
レン中の二硫化炭素濃度は3.7ppmであつた。Example 3 The same treatment as in Example 2 was carried out except that the type strongly basic anion exchange resin was replaced with a type strongly basic anion exchange resin (trade name Diaion PA416, manufactured by Mitsubishi Chemical Industries, Ltd.). However, the carbon disulfide concentration in isoprene was 3.7 ppm.
実施例 ４
二硫化炭素170ppmを含むイソプレン200ｇを乾
燥した弱塩基性陰イオン交換樹脂（前記ダイヤイ
オンWA20）30ｇとアンプル中で３時間振盪させ
た後、イソプレン中の二硫化炭素の濃度を分析し
たところ実質0ppmであつた。Example 4 After shaking 200 g of isoprene containing 170 ppm of carbon disulfide with 30 g of a dry weakly basic anion exchange resin (Diaion WA20) in an ampoule for 3 hours, the concentration of carbon disulfide in the isoprene was analyzed. However, it was practically 0ppm.
実施例 ５
乾燥した弱塩基性陰イオン交換樹脂（前記ダイ
ヤイオンWA20）11.5ｇを直径23mm、高さ75mmの
ガラス管に充填し、25ppmの二硫化炭素を含むイ
ソプレンを13ml／分の速度で連続的に充填層を通
過させた。600分後に流出するイソプレン中の二
硫化炭素濃度は0.5ppmであつた。1200分後に流
出するイソプレン中の二硫化炭素濃度は2ppmで
あつた。Example 5 11.5 g of a dry weakly basic anion exchange resin (Diaion WA20) was filled into a glass tube with a diameter of 23 mm and a height of 75 mm, and isoprene containing 25 ppm carbon disulfide was continuously added at a rate of 13 ml/min. was passed through the packed bed. The carbon disulfide concentration in the isoprene flowing out after 600 minutes was 0.5 ppm. The carbon disulfide concentration in the isoprene flowing out after 1200 minutes was 2 ppm.
1200分で15600mlのイソプレンを処理し、この
イソプレン中の二硫化炭素の濃度は0.7ppmであ
つた。 15,600 ml of isoprene was processed in 1,200 minutes, and the concentration of carbon disulfide in this isoprene was 0.7 ppm.
実施例 ６
二硫化炭素2500ppmを含むイソプレン200mlと
接触させることにより活性を失つた弱塩基性陰イ
オン交換樹脂（前記ダイヤイオンWA20）10ｇを
100mlの0.1規定のカ性ソーダのメタノール溶液中
に30分間浸漬させた後、水洗、乾燥させ再生、賦
活処理を行つた。この再生処理した弱塩基性陰イ
オン交換樹脂を25ppmの二硫化炭素を含むイソプ
レンとアンプル中で30分間振盪したところ、イソ
プレン中の二硫化炭素の濃度は実質0ppmであつ
た。Example 6 10 g of a weakly basic anion exchange resin (Diaion WA20), which had lost its activity by contacting with 200 ml of isoprene containing 2500 ppm of carbon disulfide, was
After being immersed in 100 ml of 0.1 N methanol solution of caustic soda for 30 minutes, it was washed with water, dried, and regenerated and activated. When this regenerated weakly basic anion exchange resin was shaken for 30 minutes in an ampoule with isoprene containing 25 ppm of carbon disulfide, the concentration of carbon disulfide in the isoprene was essentially 0 ppm.
Claims (1)
C5炭化水素混合物を塩基性陰イオン交換樹脂と
接触せしめて二硫化炭素を除去することを特徴と
するC5炭化水素の精製方法。1 C 5 hydrocarbons containing carbon disulfide or
A method for purifying C5 hydrocarbons, which comprises contacting a C5 hydrocarbon mixture with a basic anion exchange resin to remove carbon disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4581482A JPS58162534A (en) | 1982-03-23 | 1982-03-23 | Purification of c5hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4581482A JPS58162534A (en) | 1982-03-23 | 1982-03-23 | Purification of c5hydrocarbons |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58162534A JPS58162534A (en) | 1983-09-27 |
| JPH021809B2 true JPH021809B2 (en) | 1990-01-12 |
Family
ID=12729714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4581482A Granted JPS58162534A (en) | 1982-03-23 | 1982-03-23 | Purification of c5hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58162534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443700U (en) * | 1990-02-22 | 1992-04-14 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593166A (en) * | 1985-02-06 | 1986-06-03 | Tgk Company, Limited | Dual action pressure switch |
-
1982
- 1982-03-23 JP JP4581482A patent/JPS58162534A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443700U (en) * | 1990-02-22 | 1992-04-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58162534A (en) | 1983-09-27 |
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