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Method for co-producing epoxypropane and furoic acid

A technology of propylene oxide and furoic acid, applied in the production of bulk chemicals, organic chemistry, etc., can solve the problems of difficult control of the reaction system, easy deactivation of catalysts, etc., and achieve easy separation, high selectivity, and simplified separation process. Effect

Active Publication Date: 2015-10-28
HUIZHOU RES INST OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent ZL201010239648.6 discloses a method for preparing propylene oxide by metalloporphyrin-catalyzed epoxidation of propylene, which uses acrolein and its derivatives as co-reducing agents, but the acrylic acid series compounds produced are easy to polymerize in the system , making it difficult to control the reaction system, and the catalyst is easily deactivated

Method used

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  • Method for co-producing epoxypropane and furoic acid
  • Method for co-producing epoxypropane and furoic acid
  • Method for co-producing epoxypropane and furoic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Contain 0.1mmol cobalt phthalocyanine in 25mL (R=H in general formula (I), M 1 =Co) in the acetonitrile solution of 0.01mol, add 0.01mol of furfural, charge respectively 0.8MPa of propylene and 1.2MPa of oxygen, and carry out stirring reaction at a temperature of 30°C. Through chromatographic analysis, the conversion rate of propylene is 15%, and furfural The conversion rate of 75%, the selectivity of propylene oxide is 84%, the yield of furoic acid is 75%.

Embodiment 2

[0024] Contains 1.0 x 10 in 25mL -3 mmol tetracarboxy copper phthalocyanine (R=COOH in general formula (I), M 1 =Cu) in the acetonitrile solution of Cu), add 5.0mmol furfural, be charged with the oxygen of propylene of 0.1MPa and 0.2MPa respectively, carry out stirring reaction under 50 ℃ at temperature, through chromatographic analysis, the conversion rate of propylene is 38%, the conversion rate of furfural The conversion rate was 85%, the selectivity of propylene oxide was 90%, and the yield of furoic acid was 85%.

Embodiment 3

[0026] Contains 1.0×10 in 50mL -3 mmol o-chlorotetraphenyliron porphyrin (R in general formula (II) 1 =Cl,R 2 =R 3 =R 4 =R 5 =H,M 2 =Fe, X=H) in 1,2-dichloroethane solution, add 0.1mol of furfural, respectively fill in 0.8MPa of propylene and 2.2MPa of oxygen, and carry out stirring reaction at a temperature of 90°C. Analysis showed that the conversion rate of propylene was 30%, the conversion rate of furfural was 78%, the selectivity of propylene oxide was 91%, and the yield of furoic acid was 78%.

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Abstract

The invention discloses a method for co-producing epoxypropane and furoic acid. According to the method, propylene and furfural serve as raw materials, oxygen serves as an oxidizing agent, organic solvent is added, metal phthalocyanine or metallloporphyrin compound serves as a catalyst, and catalytic reaction is controlled to be performed under the conditions that the reaction temperature is 30-140 DEG C and the reaction pressure is 0.1-3.0 MPa to obtain the epoxypropane and the furoic acid. The method has the advantages of being mild in reaction condition, high in efficiency, high in selectivity of the epoxypropane and the furoic acid, simple in technology and the like.

Description

technical field [0001] The invention relates to a method for co-producing propylene oxide and furoic acid, in particular to a method for realizing the co-production of propylene oxide and furoic acid by biomimetic catalyzing the oxidation of propylene and furfural. Background technique [0002] Propylene oxide (PO) is the third largest organic chemical product in propylene derivatives after polypropylene and acrylonitrile. Propylene oxide is widely used. In addition to producing polyether polyols and glycerin, it can also be used to produce propylene glycol, nonionic surfactants, oil field demulsifiers, pesticide emulsifiers and wetting agents. Propylene oxide derivatives are also widely used in industries such as automobiles, construction, food, tobacco, medicine and cosmetics. With the expansion of the use of propylene oxide and the continuous growth of the use of downstream products, the market demand for propylene oxide is increasing year by year. [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/04C07D301/08C07D307/68
CPCY02P20/52C07D303/04C07D301/08C07D307/68
Inventor 纪红兵周贤太李扬
Owner HUIZHOU RES INST OF SUN YAT SEN UNIV
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