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Preparation process of catalyst for deacidification of organic compounds

A technology for organic compounds and preparation processes, which is applied in catalyst activation/preparation, purification/separation/stabilization of organic compounds, catalysts for physical/chemical processes, etc. Production equipment and other problems, to achieve the effect of low cost, improved product quality, 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

[0032] 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.

[0033] 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

[0038] 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.

[0039] 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

[0044] A preparation process for a catalyst for deacidification of organic compounds, comprising:

[0045] a, the preparation of catalyst carrier: with Al 2 o 3 , CaO, MgO, La 2 o 3 、Ce 2 o 3 、TiO 2 , ZnO, SeO, and SnO are at least 4 kinds of raw materials, and the proportion of raw materials according to the number of parts is 40 parts: 5 parts: 20 parts: 0.2 parts: 0.1 parts: 3.0 parts: 1 part: 3 parts: 5 parts; Add 1 part of graphite and 10 parts of water to the raw material to prepare a catalyst carrier;

[0046] b. Preparation of impregnation solution: nitrate aqueous solution is prepared from nickel nitrate, cobalt nitrate, copper nitrate, magnesium nitrate, zinc nitrate, lanthanum nitrate, and cerium nitrate. The total concentration of the impregnation solution is 10%, and the raw materials are divided into parts The ratio of ingredients is 8 parts: 10 parts: 10 parts: 5 parts: 10 parts: 0.5 parts: 0.5 parts;

[0047] c. Impregnation: impregnate the carrier in t...

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Abstract

The invention discloses a preparation process of a catalyst for deacidification of organic compounds. The preparation process comprises: preparing a catalyst carrier, wherein at least four of Al2O3, CaO, MgO, La2O3, Ce2O3, TiO2, ZnO, SeO and SnO are used as raw materials to prepare the catalyst carrier; preparing an impregnation solution, wherein the impregnation solution is prepared from more than three materials selected from nickel nitrate, cobalt nitrate, copper nitrate, magnesium nitrate, zinc nitrate, lanthanum nitrate and cerium nitrate, and the total concentration of the impregnation solution is 10-25%; impregnating, wherein the carrier is impregnated in the impregnation solution; and carrying out calcination decomposition on the impregnated carrier at a temperature of 400-550 DEGC under the protection of an inert gas so as to prepare the finished catalyst. According to the invention, a small amount of formic acid contained in alcohols, ethers, esters and other organic products are decomposed, such that the preparation process has characteristics of simple process, low investment, low energy consumption, low cost and improved product quality, and cannot cause difficultly-treated secondary pollution to the original product and the environment.

Description

technical field [0001] The invention relates to a preparation process of a catalyst for deacidification of organic compounds, which is mainly used for catalytically decomposing a small amount of organic acids contained in organic compounds such as alcohols, ethers, and esters, and belongs to the technical field of separation technology for catalytic 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, ...

Claims

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Application Information

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IPC IPC(8): B01J37/02B01J37/08B01J23/83B01J27/057C07B63/02
CPCB01J23/83B01J27/0573B01J37/024B01J37/082C07B63/02
Inventor 赵学谦雍家熙
Owner 成都汇嘉春天科技有限公司
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