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Porous carbonate and porous oxide preparation methods

A technology of porous oxides and carbonates, applied in the preparation of carbonates/acid carbonates, preparation of oxides/hydroxides, chemical instruments and methods, etc., can solve the complex experimental process and experimental condition requirements High, high production costs and other issues, to achieve the effect of simple operation, low requirements for the experimental environment, and reduced production costs

Active Publication Date: 2014-01-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The experimental process of the above two methods is complicated, the experimental conditions are high, and the production cost is high.

Method used

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  • Porous carbonate and porous oxide preparation methods
  • Porous carbonate and porous oxide preparation methods
  • Porous carbonate and porous oxide preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh zinc sulfate heptahydrate and precipitating agent ammonium bicarbonate according to the molar ratio of 1:2, add pore-forming agent PEG with 2 times the quality of zinc sulfate heptahydrate and mix evenly with it, fully grind for 40 minutes and let it stand for a sufficient time (4 hours ), taken out, suction filtered, washed to remove the pore-forming agent, and dried to obtain porous zinc carbonate. Roast a certain amount of porous zinc carbonate at a temperature of 600°C for 2 hours to obtain porous zinc oxide.

Embodiment 2

[0030] Weigh manganese sulfate heptahydrate and precipitating agent ammonium bicarbonate according to the molar ratio of 1:2, add pore-forming agent PEG with 5 times the quality of manganese sulfate heptahydrate and mix evenly with it, fully grind for 40 minutes and let stand for enough time (4 hours ), taken out, suction filtered, washed to remove the pore-forming agent, and dried to obtain porous zinc carbonate. Roast a certain amount of porous manganese carbonate at a temperature of 600°C for 2 hours to obtain porous manganese oxide.

Embodiment 3

[0032] First, weigh the mixture of zinc sulfate heptahydrate and manganese sulfate according to the molar ratio of 1:2, then weigh the precipitant ammonium bicarbonate with 4 times the quality of the sulfate, add an appropriate amount of pore-forming agent PEG and mix it evenly, fully grind (40 Minutes) After standing for a sufficient time (4 hours), take it out, filter with suction, wash to remove the pore-forming agent, and dry to obtain a mixture of porous zinc carbonate and manganese carbonate.

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Abstract

The invention relates to porous carbonate and porous oxide preparation methods. Crystal water-containing salts of same or different metal ions which can form carbonate precipitates are selected, the crystal water-containing salts are added with a precipitator and a pore-forming agent, the mixed raw materials are mixed uniformly and then are grinded at a room temperature for 5-600min, the grinded raw materials are taken out and then is stood for 0.5-24h, the stood raw materials are taken out and then are subjected to suction filtration, the filtration product is washed by a washing agent so that the pore-forming agent is removed, and the washed product is dried to form a porous carbonate; and the porous carbonate is calcined to form a porous oxide. The porous carbonate and porous oxide preparation methods are green and environmentally friendly, can be carried out at a room temperature under normal pressure, are free of high temperature and high pressure conditions and have an obviously reduced cost.

Description

Technical field: [0001] The invention relates to a preparation method of a porous material, which is simple, easy to implement, and environmentally friendly. Background technique: [0002] Inorganic porous materials are a class of materials rich in pore structures with the characteristics of large specific surface area, low density, low thermal conductivity, and high porosity. Inorganic porous materials have had a huge direct and indirect impact on our daily life. Inorganic porous materials are widely used as industrial catalysts and catalyst supports, separation agents, adsorbents, thermal insulation, heat insulation, sewage and waste gas treatment, filtration of liquids and gases (even bacteria), lightweight building materials, NO in the atmosphere X It can be used to improve the soil in agriculture, and can also be used as a filler in cement, rubber, plastic and paper industries and as a fixation in chromatography. In addition to the indirect effects mentioned above, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/24C01B13/14C01G9/00C01G9/02C01G45/00C01G45/02C01B32/60
Inventor 冯金奎张瑞寒张帆
Owner SHANDONG UNIV
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