PH3 protective material added with K auxiliary agent and preparation method thereof

A technology of protective materials and additives, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve problems such as human injury and carcinogenicity

Inactive Publication Date: 2020-07-10

SHANXI XINHUA CHEM

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AI-Extracted Technical Summary

Problems solved by technology

However, due to the carcinogenic effect of the loa...

Abstract

The invention discloses a preparation method of a PH3 protective material added with a K auxiliary agent, which comprises the following steps: weighing coconut shell broken activated carbon, weighingammonia water according to 90% of the water capacity of the activated carbon by adopting an equivalent impregnation method, and weighing the rest 10% of deionized water; weighing ammonium bicarbonate,basic cupric carbonate, ammonium molybdate, basic zinc carbonate and a K compound; uniformly mixing the weighed ammonia water and deionized water, heating to 40-80 DEG C, sequentially adding weighedactive components, and stirring until the active components are fully dissolved to obtain an impregnation liquid; uniformly pouring the prepared impregnation liquid into an activated carbon carrier, continuously stirring, putting the mixture into a sealing bag after the mixture is fully impregnated, standing for 1-4 hours, and drying at 120-190 DEG C for 20-40 minutes. The PH3 protective materialprepared by the invention is feasible in process through batch preparation verification, and has excellent protective performance on PH3 through power tube detection.

Application Domain

Carbon compoundsOther chemical processes

Technology Topic

Ammonium molybdateBasic copper carbonate +8

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Examples

Experimental program(2)

Example Embodiment

[0013] Example 1

[0014] A kind of PH with K additive added 3 The preparation method of the protective material is as follows:

[0015] Take 100g coconut shell crushed carbon in the range of 0.6~1.6mm, measure ammonia water according to 90% of the activated carbon water capacity, and measure the remaining 10% deionized water in a beaker; weigh 5g ammonium bicarbonate, 15g basic copper carbonate, 1g ammonium molybdate, 1g basic zinc carbonate, 10g potassium carbonate, mix a good amount of ammonia water and deionized water and heat to 40~80℃, add the weighed active components in turn, stir until fully dissolved, and then configure to dipping Pour the prepared impregnation liquid on the activated carbon carrier evenly, and keep stirring. After fully impregnating, put the mixture into a sealed bag, let it stand for 1 hour, and then dry it in a fluidized bed at a drying temperature of 135 °C. ℃, drying time 25min.

Example Embodiment

[0016] Example 2

[0017] A kind of PH with K additive added 3 The preparation method of the protective material is as follows:

[0018] Take 100g coconut shell crushed carbon in the range of 0.6-1.6mm, measure ammonia water according to 90% of the activated carbon water capacity, and measure the remaining 10% deionized water in a beaker; weigh 7g ammonium bicarbonate, 20g basic copper carbonate, 6g ammonium molybdate, 2g basic zinc carbonate, 2g potassium carbonate, mix a good amount of ammonia water and deionized water and heat to 40~80℃, add the weighed active components in turn, stir until fully dissolved, and then configure into dipping Pour the prepared impregnating liquid on the activated carbon carrier evenly, and keep stirring. After fully impregnating, put the mixture into a sealed bag, let it stand for 1 hour, and then dry it in a fluidized bed at a drying temperature of 145 °C. ℃, drying time 30min.

[0019] The catalyst prepared in the embodiment of the present invention has a negative effect on PH 3 The protective effect is shown in Table 1 below:

[0020] Table 1 Protective materials to PH 3 protective effect

[0021]

[0022] From the results in Table 1, under the same test conditions, the catalyst prepared according to Example 1 and Example 2 and the Cr-containing catalyst (comparative example) have a significant effect on PH 3 All have good protective effects, and the examples do not contain chromium.

[0023] The catalyst of the present invention uses high-quality activated carbon as a carrier, and adds potassium carbonate as an active component auxiliary on the basis of adding Cu, Mo, Zn active components. 3 It has good protective effect and does not contain toxic Cr compounds compared to ASC carbon.

[0024] The carrier material in the present invention can be replaced by activated carbon materials and porous adsorption materials with other properties; the K compound is potassium carbonate, potassium chloride or other potassium-containing compounds, such as KCl, etc. as an alternative, in addition, Mo compound can be used W salts, V salts, Zr salts, etc. are substituted.

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Description & Claims & Application Information

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