Auto-oxidation production of hydrogen peroxide via hydrogenation in a microreactor

一种生产过氧化氢、微反应器的技术，应用在过氧化氢、化学/物理/物理化学反应器、过氧化物/过氧水合物/过氧酸/超氧化物/臭氧化物等方向，能够解决氢/氧爆炸等问题

Inactive Publication Date: 2008-10-29
FMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since all AO process hydrogenation reactors use a large amount of reactant storage, the consequences of a hydrogen / oxygen explosion during the hydrogenation reaction are very serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-11

[0116] Carry out embodiment 1-4 by the hydrogenation microreactor with certain range working solution flow pressure, in embodiment 1, described fluid outlet pressure is 200psig, is 100psig in embodiment 2, is 20psig in embodiment 3, implements In Example 4 it was 5 psig.

[0117] In each of Examples 1-4, other operating parameters were kept constant: the operating temperature of the hydrogenation microreactor was 70°C. The hydrogen (H 2 ) into the microreactor at a flow rate of 4.0sccm (standard cubic centimeter per minute), and the working solution flows through the microreactor at a rate of 0.4 ml / min, and the hydrogen and working solution are input First mixed with each other before entering the microreactor.

Embodiment 5

[0118] Examples 5 and 6 were operated at a constant working solution fluid pressure of 5 psig (as in Example 4), but the operating temperature of the microreactor was lower than the 70°C used in Example 4. Example 5 was operated at 50°C and Example 6 was operated at 30°C. The hydrogen flow rate and working solution flow rate were kept constant, as described for Examples 1-4.

Embodiment 7

[0119] Examples 7-9 were operated at a constant working solution fluid pressure of 200 psig (same as Example 1), but the microreactor operating temperature was different from the 70°C used in Example 1. Example 7 was operated at 50°C, Example 8 was operated at 60°C, and Example 9 was operated at 80°C. The hydrogen flow rate and working solution flow rate were kept constant, as described for Examples 1-6.

[0120] Examples 10-11 evaluated different hydrogen flow rates above and below the 4.0 sccm hydrogen flow rate used in the hydrogenation microreactor described in Examples 1-9, respectively.

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Abstract

Hydrogen peroxide is prepared by an auto-oxidation method via hydrogenation in a microreactor. A working solution containing a reactive carrier compound is hydrogenated with hydrogen in a microreactor and is subsequently auto-oxidized to produce hydrogen peroxide.

Description

[0001] This application claims priority to US Provisional Application 60 / 713,171, filed August 31,2005. technical field [0002] This invention relates to an improved process for the production of hydrogen peroxide. More specifically, the present invention relates to a method for the production of hydrogen peroxide in which microreactors are used in the hydrogenation step of the autooxidation process. Background technique [0003] Hydrogen peroxide (H 2 o 2 ) are general-purpose household chemicals with multiple uses. Applications of hydrogen peroxide that take advantage of its strong oxidizing properties include pulp / paper bleaching, wastewater treatment, chemical synthesis, fabric bleaching, metalworking, microelectronics manufacturing, food packaging, health care, and cosmetic uses. The annual production of hydrogen peroxide in the United States is 1.7 billion pounds, which roughly accounts for about 30% of the world's total annual production (5.9 billion pounds). The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/01
CPCB01J2219/00961B01J2219/00959B01J19/0093B01J2219/00889B01J2219/00835B01J2219/0086B01J2219/00963C01B15/023B01J2219/00822B01J2219/00783B01J2219/00873B01J2219/00824B01J2219/00891B01J2219/00867B01J2219/00869B01J2219/00862B01J2219/00833
Inventor D·S·塞斯E·A·达达K·哈马克X·周
Owner FMC CORP
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