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Novel technical method for reducing nitrobenzene by using iron

A technology of nitrobenzene and electrochemical technology, which is applied in the new technical field of iron reduction of nitrobenzene, can solve problems such as green primary battery reaction of iron reduction of nitrobenzene, and the like, and achieve the effect of avoiding pollution

Inactive Publication Date: 2016-06-22
YANCHENG INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no report on the green galvanic battery reaction of iron reduction of nitrobenzene

Method used

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  • Novel technical method for reducing nitrobenzene by using iron

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Embodiment 1

[0028] The cathode is a platinum sheet, the anode is a copper sheet, the anion exchange membrane is a diaphragm, and the catholyte is 0.5molL -1 Nitrobenzene, 3.5molL -1 Ethanol solution of hydrochloric acid, anolyte is iron powder, 0.5molL -1 Aqueous ammonium chloride solution, the reaction temperature is 70°C, the distance between the poles is 1cm, at 10mA / cm 2 current density for the discharge reaction. The maximum power obtained from the battery is 2.0mWcm -2 The cathode product is 26% of aniline, 43% of p-chloroaniline, 8% of o-chloroaniline, 20% of p-ethoxyaniline, and 3% of others; the cathode product of ferrous chloride is 100%.

Embodiment 2

[0030] The cathode is a platinum sheet, the anode is a copper sheet, the anion exchange membrane is a diaphragm, and the catholyte is 1molL -1 Nitrobenzene, 7molL -1 Ethanol solution of hydrochloric acid, anolyte is iron powder, 0.5molL -1 Aqueous ammonium chloride solution, the reaction temperature is 75°C, the distance between the poles is 1cm, at 10mA / cm 2 current density for the discharge reaction. The maximum battery power obtained is 3.2mWcm -2 The cathode product is 30% of aniline, 45% of p-chloroaniline, 9% of o-chloroaniline, 12% of p-ethoxyaniline, and 4% of others; the cathode product of ferrous chloride is 100%.

Embodiment 3

[0032] The cathode is a platinum sheet, the anode is a copper sheet, the anion exchange membrane is a diaphragm, and the catholyte is 2molL -1 Nitrobenzene, 7molL -1 Ethanol solution of hydrochloric acid, anolyte is iron powder, 0.5molL -1 Aqueous ammonium chloride solution, the reaction temperature is 75°C, the distance between the poles is 1cm, at 10mA / cm 2 current density for the discharge reaction. The maximum power obtained from the battery is 4.6mWcm -2 The cathode product is 27% of aniline, 42% of p-chloroaniline, 6% of o-chloroaniline, 14% of p-ethoxyaniline, 6% of azobenzene oxide, and 5% of others; the cathode product of ferrous chloride is 100%.

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Abstract

The invention discloses an electrochemical technical method for green primary battery reaction for reducing nitrobenzene by using iron. According to the method, a primary battery is composed of a cathode chamber, an anode chamber, a cathode, an anode, a diaphragm, a cathode solution, an anode solution and a load. The reaction and generation processes are as follows: adding a nitrobenzene solution into the cathode chamber, adding iron and electrolyte into the anode chamber, and carrying out generating reaction at a certain temperature and current density. Phenylamine and derivatives thereof are generated in the cathode chamber, iron salts are generated in the anode chamber, and meanwhile, a great deal of electric energy is generated. The method has the advantages that not only can useful chemical substances be synthesized in the two chambers of the primary battery, but also the electric energy serving as a byproduct can be generated, the defects of pollution and energy waste caused by mixing oxidation reductants in the traditional technology are overcome, and therefore, the method is a novel environment-friendly and energy-saving technology.

Description

technical field [0001] The invention relates to a technical method, which utilizes iron and nitrobenzene to spontaneously undergo oxidation-reduction reaction, designs a galvanic battery reaction system, and realizes iron reduction of nitrobenzene through galvanic battery reaction. The invention belongs to the technical field of environmental protection and energy saving of organic electrochemistry and energy electrochemistry. Background technique [0002] Energy and environmental issues are two major issues facing the world today. Today, fossil energy, as the main energy source, has brought serious environmental pollution. In addition to the gradual depletion of fossil energy, it is necessary to develop and utilize renewable clean energy, improve energy structure, reduce The emission of greenhouse gases and the protection of the environment on which human beings depend have become an important part of the sustainable development strategy of energy in the world today. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/26C25B3/04C25B5/00C25B3/25
CPCC25B1/26C25B5/00C25B3/25
Inventor 陈松李叶涛王晓娟唐宏高兴旺马培岚陈亮柏云杉
Owner YANCHENG INST OF TECH
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