Method for co-producing monoethylamine and sec-butylamine by supergravity method
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A high-gravity method and sec-butylamine technology are applied in chemical instruments and methods, preparation of organic compounds, physical/chemical process catalysts, etc., which can solve problems such as unseen co-production process methods and unseen high-gravity technology, and achieve Good social significance and economic benefits, simple process and simple process
Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
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[0009] In the existing patents, there is only a single monoethylamine or a separate preparation method of sec-butylamine, and there is no process for the co-production of monoethylamine and sec-butylamine, and there is no use of high gravity technology for sec-butylamine, sec-butylamine, Application in the preparation of monoethylamine
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Embodiment 1
[0063] This embodiment provides a method for the coproduction of monoethylamine and sec-butylamine by the high gravity method.
[0064] The first catalyst and the second catalyst are selected to use macroporous sulfonic acid type cation exchange resin produced by Dandong Mingzhu Special Resin Co., Ltd.
[0065] The preparation method of the 3rd catalyst is as follows:
[0066] (1) Carrier molding: take 300g of alumina powder and 6g of scallop powder and mix them in a kneader, add 270g of water, knead for 20min, then extrude into a 3mm thick clover shape with an extruder, dry at 120°C, and then heat at 800°C Calcined at lower temperature for 4 hours to obtain an alumina carrier.
[0067] (2) Loading active components: take 99.3g of Ni(NO 3 ) 2 ·6H 2 O (analytically pure), 51.08g of Cu(NO 3 ) 2 ·3H 2 O (analytical pure) was dissolved in water to be 162mL solution, and the above solution was loaded on the obtained 100g carrier by spraying twice; after each spraying, it was...
Embodiment 2
[0105] This embodiment provides a method for the coproduction of monoethylamine and sec-butylamine by the high gravity method.
[0106] The first catalyst and the second catalyst are selected to use macroporous sulfonic acid type cation exchange resin produced by Dandong Mingzhu Special Resin Co., Ltd.
[0107] The preparation method of the 3rd catalyst is as follows:
[0108] (1) Carrier molding: take 300g of alumina powder and 6g of scallop powder and mix them in a kneader, add 270g of water, knead for 20min, then extrude into a 3mm thick clover shape with an extruder, dry at 120°C, and then heat at 800°C Calcined at lower temperature for 4 hours to obtain an alumina carrier.
[0109] (2) Loading active components: Take 134.1g of Ni(NO 3 ) 2 ·6H 2 O (analytically pure), 31.05g of Cu(NO 3 ) 2 ·3H 2 O (analytical pure) was dissolved in water to be 168mL solution, and the above solution was loaded on the obtained 100g carrier by spraying twice; after each spraying, it wa...
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Abstract
The invention belongs to the technical field of chemical engineering, and relates to a method for co-producing monoethylamine and sec-butylamine by a supergravity method. Comprising the following steps: carrying out first reaction on acetic acid and etherified C4 to obtain a first gas-phase material flow and a first stream; performing a second reaction on the first gas-phase material flow and the first stream to obtain a second gas-phase material flow and a second stream; uniformly mixing the second stream with hydrogen, and carrying out hydrogenation reaction to obtain a third stream; carrying out first gas-liquid separation and rectification on the third stream to obtain a fourth stream and a fifth stream; the fourth stream and the first mixed gas are subjected to a first hydrogen ammonification reaction, and a third gas phase stream and a sixth stream are obtained; and the fifth stream and the second mixed gas are subjected to a second hydrogen ammonification reaction to obtain a fourth gas-phase stream and a seventh stream. The method is simple in process, can be used for a high space velocity process, can be used for preparing sec-butylamine and monoethylamine with high added values from acetic acid and etherified C4 resources, has good social significance and economic benefits, is simple in process and is suitable for industrial application.
Description
technical field [0001] The invention belongs to the technical field of chemical industry, and more specifically relates to a method for co-producing monoethylamine and sec-butylamine by a high-gravity method. Background technique [0002] Monoethylamine is a multi-purpose fine chemical product, which can be used in pharmaceuticals, printing and dyeing, mineral processing agents, photochemicals, textiles, high polymers, preservatives, dry cleaning agents, etc. It has a large market demand and broad application prospects. [0003] Sec-butylamine is a colorless, volatile liquid with an ammonia smell, soluble in water, ethanol, ether, acetone, etc., and has anti-mold and bactericidal effects. It was recommended by the United Nations Health Organization and the Food Organization as early as the 1980s. It is an excellent antistaling agent with low toxicity, no deformity and no carcinogenicity, and its demand is also increasing in recent years. [0004] The main source of C4 mixtu...
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