Sulfate-reducing bacteria (SRB) inhibitor for preventing palladium catalyst poisoning during hydrogen peroxide production process

A production process, sulfate technology, applied in the direction of peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, biocide, disinfectant, etc., can solve the problems of high price and low sterilization efficiency , to achieve the effect of increasing yield, saving capital investment, and inhibiting growth and reproduction

Inactive Publication Date: 2012-10-03
山东巨业精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used method to prevent and control SRB is to put fungicides or antibacterial agents, but there are generally problems of low sterilization efficiency, high price, and new burdens on environmental governance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Bacteriostatic agent of the present invention is based on the total amount of water in the hydrogen tank, and the mass percentages of the additions of each component are as follows:

[0032] a. Sodium carbonate Na 2 CO 3 : 0.02%,

[0033] b. Sodium nitrate NaNO 3 : 0.004%,

[0034] c. Calcium oxide CaO: 0.09%,

[0035] d. Trisodium phosphate Na 3 PO 4 12H 2 O: 0.0025%.

[0036] Instructions:

[0037] (1) Prepare the aqueous solution of antibacterial agent components: according to the mass percentage in the formula, take Na 2 CO 3 、NaNO 3 and Na 3 PO 4 12H 2 O are placed in stainless steel tanks respectively, and an appropriate amount of water in the hydrogen tank is added as a solvent to dissolve all the solutes. If necessary, heat to 50-60°C to speed up the dissolution, and prepare aqueous solutions for later use;

[0038] (2) Mature calcium oxide into a paste (Ca(OH) 2 ·nH 2 0), add the water in the hydrogen tank and stir into an aqueous solution, for...

Embodiment 2

[0043] According to the total water in the hydrogen tank, the mass percent of each component of the bacteriostat is as follows:

[0044] a. Sodium carbonate Na 2 CO 3 : 0.017%,

[0045] b. Sodium nitrate NaNO 3 : 0.0038%,

[0046] c. Calcium oxide CaO: 0.085%,

[0047] d. Trisodium phosphate Na 3 PO 4 12H 2 O: 0.0023%.

Embodiment 3

[0049] According to the total water in the hydrogen tank, the mass percent of each component of the bacteriostat is as follows:

[0050] a. Sodium carbonate Na 2 CO 3 : 0.019%,

[0051] b. Sodium nitrate NaNO 3 : 0.0039%,

[0052] c. Calcium hydroxide Ca(OH) 2 : 0.1255%,

[0053] d. Disodium hydrogen phosphate Na 2 HPO 4 12H 2 O: 0.0024%.

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Abstract

The invention discloses a sulfate-reducing bacteria (SRB) inhibitor for preventing palladium catalyst poisoning during hydrogen peroxide production process, belonging to the technical field of industrial chemicals. The SRB inhibitor is prepared from sodium carbonate, sodium nitrate, calcium oxide and trisodium phosphate by proportionally and sequentially adding aqueous solutions of each component into hydrogen cabinet water, and circulating with a pump to prepare into uniform solution. The inventive inhibitor can effectively suppress SRB survival in hydrogen cabinet water tank, reduce hydrogen sulfide generation, prevent palladium catalyst poisoning during hydrogen peroxide production process, reduce production equipment corrosion, and lower hydrogen peroxide production cost.

Description

technical field [0001] The invention belongs to the technical field of industrial chemicals, and in particular relates to a sulfate-reducing bacteria antibacterial agent for preventing palladium catalyst poisoning in the production process of hydrogen peroxide. Background technique [0002] Hydrogen peroxide is an important inorganic chemical product. It is used as an environmentally friendly oxidant in the production of vulcanization accelerators NS, CZ, and DE in the rubber industry, as a bactericide in circulating cooling water, and as a bleaching agent in papermaking and textile industries. Wait. The decomposed product of hydrogen peroxide during use is water, which will not cause secondary pollutants and is a green and environmentally friendly oxidant. Hydrogen peroxide as an oxidizing agent has the advantages of mild reaction conditions and high selectivity. The demand for hydrogen peroxide is increasing, and the output of hydrogen peroxide is increasing at a rate of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/26A01N59/06A01N59/00A01P1/00C01B15/023
Inventor 李雪梅高鑫王海龙李东
Owner 山东巨业精细化工有限公司
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