JPH02256651A - Production of carbonic ester - Google Patents

Production of carbonic ester

Info

Publication number
JPH02256651A
JPH02256651A JP63317424A JP31742488A JPH02256651A JP H02256651 A JPH02256651 A JP H02256651A JP 63317424 A JP63317424 A JP 63317424A JP 31742488 A JP31742488 A JP 31742488A JP H02256651 A JPH02256651 A JP H02256651A
Authority
JP
Japan
Prior art keywords
reaction
oxygen
alcohol
carbon monoxide
copper
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.)
Granted
Application number
JP63317424A
Other languages
Japanese (ja)
Other versions
JPH0813788B2 (en
Inventor
Yukio Yoshida
幸夫 吉田
Hiroyuki Miura
裕幸 三浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daicel Corp
Original Assignee
Daicel Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daicel Chemical Industries Ltd filed Critical Daicel Chemical Industries Ltd
Priority to JP63317424A priority Critical patent/JPH0813788B2/en
Publication of JPH02256651A publication Critical patent/JPH02256651A/en
Publication of JPH0813788B2 publication Critical patent/JPH0813788B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE:To obtain in high purity the title ester useful as a solvent or raw material for polymers or pesticides and medicines without causing reactor corrosion by reaction between an alcohol, carbon monoxide and oxygen in the presence of metallic copper, CONSTITUTION:The objective ester can be obtained by reaction between an alcohol, carbon monoxide and oxygen at 50-200 deg.C under normal or higher pressure with the partial pressures in the reaction system for the carbon monoxide, oxygen and alcohol of 0.1-56atm, 0.05-4atm and 0.1-40atm, respectively. The metallic copper as the catalyst can be used as copper simple substance or carried on a carrier; in the latter case, the amount to be carried is 0.05-50wt.%, and the amount of copper to be used is such as to be 0.1-5000mmol/l (methanol) in the case of e.g. liquid phase method.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、炭酸エステルの製造方法に関するものである
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing a carbonate ester.

炭酸エステルはポリマーや医農薬製造原料及び溶剤とし
て工業的に重要な化合物である。
Carbonic esters are industrially important compounds as raw materials and solvents for producing polymers and pharmaceuticals and agricultural chemicals.

(従来の技術) 炭酸エステルの製造法としてはアルコールにホスゲンを
反応させる方法(特公昭58−50977、特公昭59
−492など)があるが、この方法では毒性の高いホス
ゲンを使用することや、炭酸エステルに塩素イオンが混
入し、その除去が困難でホスゲンを使用しない炭酸エス
テルの製造法としては、塩化第二銅を含む触媒の存在下
に液相でアルコールと一酸化炭緊及び酸素を反応させる
方法(特公昭5B−33857など)が知られている。
(Prior art) As a method for producing carbonic ester, there is a method of reacting alcohol with phosgene (Japanese Patent Publication No. 58-50977, Japanese Patent Publication No. 59-59).
-492, etc.), but this method requires the use of highly toxic phosgene, and chloride ions are mixed into the carbonate ester, which is difficult to remove. A method is known in which alcohol is reacted with carbon monoxide and oxygen in a liquid phase in the presence of a catalyst containing copper (Japanese Patent Publication No. 5B-33857, etc.).

この方法では、ハライド化合物による反応装置材質の腐
食が問題上なり、グラスライニング以外に工業的な材質
は見当らない、また、触媒のスラリー化、触媒活性低下
などの問題点も抱えている。
This method has the problem of corrosion of the reactor material due to halide compounds, and there are no industrial materials other than glass lining, and it also has problems such as slurrying of the catalyst and reduction in catalyst activity.

気相条件下の反応(US4625044、W08?−1
07601)でもやはり触媒中のハロゲンによる反応装
置材質の腐食が間頭となり、ハステロイC等の高価な特
殊金属が必要である。また、炭酸エステルにハロゲンが
混入する可能性があるといった問題を掬えている。さら
に反応中にハロゲンが減少し、触媒活性の低下は免れな
い。
Reaction under gas phase conditions (US4625044, W08?-1
07601), corrosion of the reactor material due to the halogen in the catalyst still occurs, and expensive special metals such as Hastelloy C are required. Additionally, there is a problem that halogen may be mixed into the carbonate ester. Furthermore, halogen is reduced during the reaction, inevitably resulting in a decrease in catalyst activity.

(発明が解決しようとしている謀R) 本発明は、アルコールと一酸化炭素及び酸素を反応させ
て炭酸エステルを製造する方法において、毒性の高いホ
スゲンや装置腐食の原因となるハロゲン及びハロゲン誘
導体が存在しない反応系における炭酸エステルの新しい
製造方法を提供することを目的とする。
(Conspiracy to be Solved by the Invention) The present invention provides a method for producing carbonic ester by reacting alcohol with carbon monoxide and oxygen, in which highly toxic phosgene and halogens and halogen derivatives that cause equipment corrosion are present. The purpose of the present invention is to provide a new method for producing carbonate esters in a reaction system that does not require the following steps.

帽1を解決するための手段) 本発明者らは、鋭意研究を重ねた結果、意外にも、金属
鋼の存在下にアルコールと一酸化炭素及び酸素を反応さ
せることによって炭酸エステルが製造できることを見い
出し、本発明に到った。
Means for Solving Problem 1) As a result of extensive research, the present inventors surprisingly discovered that carbonate esters can be produced by reacting alcohol with carbon monoxide and oxygen in the presence of metal steel. This heading led to the present invention.

ここで用いられる銅は、銅単体でも担体に担持したもの
でもよい、担体に担持する場合は、担持量は通常0.0
5〜50 w t%の範囲で使用される。a4の使用量
は、例えば液相法では、0.1mmo  1/J(メタ
ノ−n> 〜 5 0 0 0mm  o  +  /
−ICメタノ−1)である。
The copper used here may be copper alone or supported on a carrier. When supported on a carrier, the amount supported is usually 0.0
It is used in a range of 5 to 50 wt%. For example, in the liquid phase method, the amount of a4 used is 0.1 mmo 1/J (methanol-n> ~ 5000 mm o + /
-IC methanol-1).

固体担体としてはシリカ、アルミナ、シリカ−アルミナ
、ゼオライト、珪藻土、チタニア、ジルコニア、マグネ
シア、活性炭、グラファイト、樹脂などが用いられ触媒
担体としての機能を有するものであればよい。
As the solid carrier, silica, alumina, silica-alumina, zeolite, diatomaceous earth, titania, zirconia, magnesia, activated carbon, graphite, resin, etc. can be used as long as it has a function as a catalyst carrier.

固体担持触媒は、銅金属塩を水または有機溶媒に溶解し
、この溶液に該固体担体を加え担持させた後、還元およ
び、加熱処理することにより得ることができる。
The solid-supported catalyst can be obtained by dissolving a copper metal salt in water or an organic solvent, adding the solid support to this solution to support the solution, and then reducing and heat-treating the catalyst.

銅金属塩としては、ハロゲン化物、カルボン酸塩、Ti
I4酸塩、硫酸塩、酸化物、水酸化物などが用いられる
Examples of copper metal salts include halides, carboxylates, Ti
I4 acid salts, sulfates, oxides, hydroxides, etc. are used.

本発明における反応基質であるアルコールとしては、メ
タノール、エタノール等の飽和脂肪族アルコール、アリ
ルアルコール等の不飽和脂肪族アルコール、シクロヘキ
サノールのような環式脂肪族アルコール、エチレングリ
コール、ベンジルアルコールなどのような炭素原子数1
〜10のアルコールが用いられる。
Alcohols that are reaction substrates in the present invention include saturated aliphatic alcohols such as methanol and ethanol, unsaturated aliphatic alcohols such as allyl alcohol, cycloaliphatic alcohols such as cyclohexanol, ethylene glycol, benzyl alcohol, etc. number of carbon atoms is 1
~10 alcohols are used.

一酸化炭素及び酸素は、純粋な状態で用いても、窒素、
ヘリウム、アルゴン、二酸化炭素等反応に不活性なガス
で希釈して用いても良いし、酸素源としては空気を用い
ても良い0反応は、常圧または加圧下で行なわれ、反応
系内の一酸化炭素分圧は0.1〜56気圧、酸素分圧は
0.05〜4気圧、アルコール分圧は0.1〜40気圧
の範囲が好ましい。
Even when carbon monoxide and oxygen are used in their pure state, nitrogen,
The reaction may be diluted with an inert gas such as helium, argon, or carbon dioxide, and air may be used as the oxygen source.The reaction is carried out under normal pressure or increased pressure, and the Preferably, the carbon monoxide partial pressure is in the range of 0.1 to 56 atm, the oxygen partial pressure is in the range of 0.05 to 4 atm, and the alcohol partial pressure is in the range of 0.1 to 40 atm.

本発明の反応は50〜200℃好ましくは90〜150
℃の温度範囲で行なわれ、通常100気圧以下の反応圧
で行なわれる。
The reaction of the present invention is carried out at 50-200°C, preferably 90-150°C.
The reaction is carried out at a temperature range of 100°C and usually at a reaction pressure of 100 atmospheres or less.

(触媒の調製方法) 塩化第二銅二水和物2.5gttli水22m1に溶か
し、これに12〜16メツシユの粒度の活性炭20gを
加え16時間漫潰、ついで80℃の熱風乾燥機で16時
間、時々かきまぜながら水分を蒸発させた。その後40
0℃で2時間水素雰囲気で加熱処理を行い触媒調製を行
なった。
(Catalyst preparation method) 2.5 g of cupric chloride dihydrate was dissolved in 22 ml of water, and 20 g of activated carbon with a particle size of 12 to 16 mesh was added thereto, crushed for 16 hours, and then heated in a hot air dryer at 80°C for 16 hours. , and allowed the water to evaporate while stirring occasionally. then 40
The catalyst was prepared by heat treatment at 0°C for 2 hours in a hydrogen atmosphere.

この発明による方法は、以下の実施例によりさらに詳し
く説明するが、この発明は実施例に何ら限定されるもの
ではない。
The method according to the invention will be explained in more detail with reference to the following examples, but the invention is not limited to the examples in any way.

実施例 l 上記調製法により調製した触媒15・ml(6゜5g、
  4. 8 (Cu)mm o l )を、高圧気相
用U字型反応管に充填し、 150℃、20.4気圧、
10700 h−1(7)空間速度(CO/ 02/ 
N2/ メ9ノール(モル比)=37/3157/3)
で2時間反応させた。生成物の定量は、ガスクロマトグ
ラフ法によフた。その結果0.77gのジメチルカーボ
ネートを得た。
Example 1 15 ml (6°5 g,
4. 8 (Cu) mmol) was filled into a U-shaped reaction tube for high pressure gas phase, and the temperature was 150°C, 20.4 atm,
10700 h-1 (7) Space velocity (CO/ 02/
N2/men9ol (molar ratio) = 37/3157/3)
The mixture was allowed to react for 2 hours. The product was quantified by gas chromatography. As a result, 0.77 g of dimethyl carbonate was obtained.

(メタノールからの副生成物として0.07gの蟻酸メ
チルが検出された。) 実施例 2 実施例 1と同じ触媒2. 5g(1,85(Cu)m
mol)を粉末状に砕き、38m1のメタノールととも
に320m1のオートクレーブに仕込んだ、さらに20
気圧のC011気圧の02.4気圧のArを張り込み、
130℃で70分間反応させた。その結果0.80gの
ジメチルカーボネートを得た。 (メタノールからの副
生成物としてo、oo3gのメチラールが検出された。
(0.07 g of methyl formate was detected as a by-product from methanol.) Example 2 Same catalyst as Example 1 2. 5g (1,85(Cu)m
mol) was crushed into powder and charged into a 320 ml autoclave with 38 ml of methanol.
Atmospheric pressure C011 atm 02.4 atm Ar is charged,
The reaction was carried out at 130°C for 70 minutes. As a result, 0.80 g of dimethyl carbonate was obtained. (3 g of methylal was detected as a by-product from methanol.

)実施例 3 銅粉1 g (15,7mmo 1)を38m1のメタ
ノールとともに320m1のオートクレーブに仕込んだ
、さらに7.2気圧のC010,9気圧の02.4気圧
のN2を張り込み、 130℃で70分間反応させた。
) Example 3 1 g (15.7 mmo 1) of copper powder was charged into a 320 ml autoclave with 38 ml of methanol, and further charged with 7.2 atm of CO10, 9 atm of N2, and 7.0 atm of N2 at 130°C. Allowed to react for minutes.

その結果0.014gのジメチルカーボネートを得た。As a result, 0.014 g of dimethyl carbonate was obtained.

 (メタノールからの副生成物として0.002gのメ
チラールが検出された。)比較例 活性炭2.5gを用い実施例 3と同じ条件で反応を行
なったが、ジメチルカーボネートの生成は、認められな
かった。
(0.002 g of methylal was detected as a by-product from methanol.) Comparative Example A reaction was carried out using 2.5 g of activated carbon under the same conditions as in Example 3, but no formation of dimethyl carbonate was observed. .

(発明の効果) 金属鋼の存在下にアルコールと一酸化炭嚢及び酸素を温
和な条件で反応装置を腐食させることなく炭酸エステル
を得ることができる。腐食がないので反応装置は安価な
汎用の材質、例えば5Us−316L等を使用すること
が可能である。また、不純物の混入の恐れもなく高い純
度の炭酸エステルを得ることが可能となった。
(Effects of the Invention) A carbonic acid ester can be obtained in the presence of metal steel using alcohol, a carbon monoxide bag, and oxygen under mild conditions without corroding the reactor. Since there is no corrosion, it is possible to use inexpensive general-purpose materials such as 5Us-316L for the reactor. Furthermore, it has become possible to obtain highly pure carbonate ester without fear of contamination with impurities.

Claims (1)

【特許請求の範囲】[Claims] 金属銅の存在下にアルコールと一酸化炭素及び酸素を反
応させることを特徴とする炭酸エステルの製造方法。
A method for producing carbonate ester, which comprises reacting alcohol with carbon monoxide and oxygen in the presence of metallic copper.
JP63317424A 1988-12-15 1988-12-15 Method for producing carbonate ester Expired - Lifetime JPH0813788B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63317424A JPH0813788B2 (en) 1988-12-15 1988-12-15 Method for producing carbonate ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63317424A JPH0813788B2 (en) 1988-12-15 1988-12-15 Method for producing carbonate ester

Publications (2)

Publication Number Publication Date
JPH02256651A true JPH02256651A (en) 1990-10-17
JPH0813788B2 JPH0813788B2 (en) 1996-02-14

Family

ID=18088075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63317424A Expired - Lifetime JPH0813788B2 (en) 1988-12-15 1988-12-15 Method for producing carbonate ester

Country Status (1)

Country Link
JP (1) JPH0813788B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06285375A (en) * 1992-06-29 1994-10-11 Jgc Corp Catalyst for production of carbonic diester and production method using the same
US5387708A (en) * 1993-12-10 1995-02-07 The Dow Chemical Company Production of dialkyl carbonates using copper catalysts
CN1102076C (en) * 1996-10-04 2003-02-26 千代田化工建设株式会社 Method for producing diester carbonate
US9249082B2 (en) 2010-02-09 2016-02-02 King Abdulaziz City for Science and Technology (KACST) Synthesis of dimethyl carbonate from carbon dioxide and methanol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06285375A (en) * 1992-06-29 1994-10-11 Jgc Corp Catalyst for production of carbonic diester and production method using the same
US5387708A (en) * 1993-12-10 1995-02-07 The Dow Chemical Company Production of dialkyl carbonates using copper catalysts
CN1102076C (en) * 1996-10-04 2003-02-26 千代田化工建设株式会社 Method for producing diester carbonate
US9249082B2 (en) 2010-02-09 2016-02-02 King Abdulaziz City for Science and Technology (KACST) Synthesis of dimethyl carbonate from carbon dioxide and methanol

Also Published As

Publication number Publication date
JPH0813788B2 (en) 1996-02-14

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