Oxidation process for preparing hydrogen peroxide
An oxidation process, hydrogen peroxide technology, applied in the direction of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, chemical instruments and methods, etc., can solve environmental pollution, troubles, Increase construction investment and other issues to achieve the effect of reducing environmental pollution
Inactive Publication Date: 2006-01-18
中国石油化工股份有限公司巴陵分公司
View PDF0 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There are two obvious disadvantages in this process: one is that the gas-liquid separator and the oxidation liquid storage tank are vented, and the vented air will carry aromatics into the atmosphere, which not only causes environmental pollution, but also causes the loss of aromatics and increases the production capacity. The second is that the oxidation reaction is carried out under a certain pressure, but the extraction is carried out under normal pressure, and the pressure difference between the two processes has not been used reasonably and effectively, thereby increasing unnecessary preparation equipment and increasing The construction investment is reduced; once the operation of the pump of the operating equipment is abnormal, it is necessary to perform reverse pump operation and maintenance, which brings unnecessary troubles to the production; at the same time, the corresponding increase in the preparation cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0009] The present invention will be further described below in conjunction with example, see figure 1 After the hydrogenated liquid is oxidized in the oxidation towers 1 and 2, it enters the vapor-liquid separator 4. At the initial stage of start-up or when the production is not normal, the switching valve b is closed, and the oxidizing liquid is sent to the high-level tank 5 of 10-20 meters by pressure difference, and then the oxidizing liquid is sent to the extraction tower by using the height difference of 5-15 meters 6. When the production is in a normal state, switch valve b is opened, switch valve a is closed, and the oxidized liquid is directly sent to the extraction tower 6 through the vapor-liquid separator 4 by using the pressure difference.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention relates to oxidation process, and is especially anthraquinone oxidation process of preparing hydrogen peroxide. The present invention features that the oxidized solution after separation in the gas-liquid separator is pressurized with the pressure difference to the higher tank in certain height and the extracting tower successively, while the materials from the gas-liquid separator and the higher tank are led to the top condensator of the oxidation tower for recovering the arene therein. The present invention provides one kind of hydrogen peroxide preparing oxidation process with low investment, less arene loss, less environmental pollution and short period.
Description
technical field [0001] The invention relates to an oxidation process, in particular to an oxidation process for preparing hydrogen peroxide by an anthraquinone method. Background technique [0002] The preparation process of hydrogen peroxide by anthraquinone method includes several processes such as hydrogenation, oxidation, extraction, purification, concentration and post-treatment of working fluid. The hydrogenated liquid obtained in the hydrogenation process enters the oxidation tower in the oxidation process, and the oxidation reaction is carried out at an operating pressure of 0.2 MPa to 0.4 MPa and an operating temperature of 40 ° C to 65 ° C to generate an oxidation liquid containing a certain concentration of hydrogen peroxide. [0003] The oxidation process used in domestic anthraquinone method to prepare hydrogen peroxide is generally that the oxidizing liquid is separated by a vapor-liquid separator, enters the oxidizing liquid storage tank, and then uses a pump ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C01B15/023
Inventor 秦总根胡先君
Owner 中国石油化工股份有限公司巴陵分公司