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Catalytic decomposition process of formic acid

A technology of catalytic decomposition and formic acid, applied in the direction of heterogeneous catalyst chemical elements, physical/chemical process catalysts, organic chemistry, etc., can solve the problems that are difficult to meet the scale of industrial production equipment, the separation of final products and homogeneous catalysts, etc., to achieve The effect of low cost, less investment and simple process flow

Active Publication Date: 2018-10-09
成都汇嘉春天科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a homogeneous catalyst is used to remove a small amount of formic acid contained in liquid organic substances such as alcohols, aldehydes, ethers, and esters, it will bring great difficulties to the separation of the final product and the homogeneous catalyst, and it is difficult to meet the requirements for large-scale industrial production equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The carrier ingredient is Al 2 o 3 47.9 parts, MgO 24.6 parts, CaO 24 parts, TiO 2 After uniform mixing and ball milling for 1.5 hours, add 1.5 parts of graphite and 12 parts of water, and mix evenly; after pre-pressing granulation and compression molding, leave it for 7 hours, and send it to a drying oven at room temperature; Heat up at a rate of 15°C / hour, dry at a constant temperature of 120°C for 2 hours, and send it to a roaster; under the protection of nitrogen at a rate of 50°C / h, heat up to 750°C and roast at a constant temperature for 3 hours to make the required carrier; carrier The shape is spherical with ϕ3.0mm; its pore volume is 0.56ml / g.

[0040] Prepare the impregnation solution required for impregnating the active components of the catalyst: select cobalt nitrate 3 ) 3 ••6H 2 O>, zinc nitrate 3 ) 2 ••6H 2 O>, cerium nitrate 3 ) 3 ••6H 2 O>Three kinds of active materials, the batching ratio is based on the number of parts calculated by the materi...

Embodiment 2

[0045] The carrier ingredient used is Al 2 o 3 56.5 parts of MgO, 35.7 parts of CaO, 7.5 parts of CaO, La 2 o 3 After uniform mixing and ball milling for 1.5 hours, add 1.5 parts of graphite and 12 parts of water, and mix evenly; after pre-pressing granulation and compression molding, leave it for 7 hours, and send it to a drying oven at room temperature; Heat up at a rate of 15°C / hour, dry at a constant temperature of 120°C for 2 hours, and send it to a roaster; under the protection of nitrogen, heat up to 850°C at a rate of 50°C / h and roast at a constant temperature for 3 hours to make the required carrier; carrier The shape is spherical with ϕ3.0mm; its pore volume is 0.68ml / g.

[0046] Prepare the impregnation solution required for impregnating the active components of the catalyst: select nickel nitrate 3 ) 3 ••6H 2 O>, zinc nitrate 3 ) 2 ••6H 2 O>, lanthanum nitrate 3 ) 3 ••6H 2 O>Three kinds of active materials, the batching ratio is batched according to the nu...

Embodiment 3

[0051] A catalytic decomposition process of formic acid, the formic acid in the material to be deacidified is decomposed into CO and H through a catalyst 2 O or CO 2 and H 2 , and the weight content of formic acid in the material to be deacidified is ≤1%.

[0052] When using a fixed-bed catalytic reactor, the reaction conditions are: reaction temperature 105°C, reaction pressure 0.1MPa, reaction liquid space velocity 0.5h -1 , when a fixed-bed catalytic reactor is used, after the content of formic acid and the space velocity of the reaction liquid are determined, the amount of catalyst is also determined.

[0053] When the slurry bed reactor is used, the loading amount of catalyst per 100mL of material to be deacidified is 8g~35g, and the reaction time is 60min~12O min.

[0054] The materials to be deacidified include alcohols, aldehydes, ketones, ethers, or ester organic compounds, or derivatives of formaldehyde series as raw materials to prepare polyoxymethylene dimethyl ...

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Abstract

The invention discloses a catalytic decomposition process of formic acid. The catalytic decomposition process comprises: catalytically decomposing formic acid in a to-be-deacidified material into CO and H2O or CO2 and H2 through a catalyst, wherein the formic acid content in the to-be-deacidified material is less than or equal to 1 wt%. According to the present invention, a small amount of the formic acid contained in alcohols, ethers, esters and other organic products is decomposed, such that the advantages of simple process, less investment, low energy consumption, low cost and product quality improving are achieved, and the difficultly-treated secondary pollution cannot be generated to the original product and the environment.

Description

technical field [0001] The invention relates to a method for catalytically decomposing a small amount of organic acids contained in organic compounds such as alcohols, ethers, esters, etc., in particular to a process for catalytically decomposing formic acid, which belongs to the technical field of separation technology for catalytic refining and deacidification of organic compounds. Background technique [0002] Organic chemicals and fine chemicals are fields in which alcohols, aldehydes, acids, ethers, and esters are important raw materials, and they involve energy, fine chemicals, synthetic materials, medicines, pesticides, daily chemicals, agricultural chemicals, leather chemicals, and military chemical products, etc. Many industries. The number of derived products is difficult to estimate, among which there are more than 500 kinds of extended products of methanol chemical and formaldehyde chemical. [0003] During the production of alcohol, aldehyde, ketone, ether, est...

Claims

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Application Information

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IPC IPC(8): C07C67/60C07C69/14C07C41/58C07C43/30B01J23/83
CPCB01J23/002B01J23/83B01J2523/00C07C41/58C07C67/60C07C69/14C07C43/30B01J2523/22B01J2523/23B01J2523/31B01J2523/47B01J2523/27B01J2523/3712B01J2523/845B01J2523/3706B01J2523/847
Inventor 赵学谦雍家熙
Owner 成都汇嘉春天科技有限公司
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