Method for preparing basic nickel silicate catalyst from silicon-containing industrial solid waste

A solid waste and nickel silicate technology, which is applied in the field of solid waste resource utilization, can solve the problems of complex process, high cost and harsh preparation conditions, and achieve the effects of high purity, simple operation and low raw material cost

Pending Publication Date: 2020-10-30
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the silica-based materials used in the above methods generally use commercial silicon-based reagents such as methyl orthosilicate or ethyl orthosilicate as the silicon source during the preparation process, and a certain amount of expensive templates such as P123, F127 or CTAB are added at the same time. , the preparation conditions are harsh, the process is complicated, and the cost is relatively high

Method used

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  • Method for preparing basic nickel silicate catalyst from silicon-containing industrial solid waste
  • Method for preparing basic nickel silicate catalyst from silicon-containing industrial solid waste
  • Method for preparing basic nickel silicate catalyst from silicon-containing industrial solid waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] After pulverizing the filter residue of fluosilicic acid waste water, put it in the muffle furnace at 600 o Roasting at C for 6 h activation, the activated fluosilicic acid wastewater filter residue and 16 mol / L NH 4 F solution is the reaction raw material, at 100 o C for 2 h and filtered while hot. NH produced during the reaction 3 Collected with deionized water to obtain NH 3 ·H 2 O. Add the filtrate to the above NH 3 ·H 2 O, 50 o After heating and stirring for 1 h at C, the stirring was stopped, and the resulting slurry was heated at 50 o C sinks for 3 h, then filters and washes for 80 o C under vacuum drying for 12 h, and the ammonium fluoride in the filtrate was recycled as a reactant for the next reaction. Then 1 g of the treated solid powder was dispersed in an aqueous solution containing 30 g of nickel nitrate, ultrasonically treated for 10 min, and then moved to a hydrothermal kettle at 240 o Under the environment of C, the water is heated for 12 h. ...

Embodiment 2

[0025] The oil shale ash and iron tailings are crushed and placed in the muffle furnace at 900 o Activated by roasting at C for 2 h, using activated oil shale ash and iron tailings and 22 mol / L NH 4 F solution is the reaction raw material, at 120 o C for 8 h and filtered while hot. NH produced during the reaction 3 Collected with deionized water to obtain NH 3 ·H 2 O. Add the filtrate to the above NH 3 ·H 2 O, 80 o After heating and stirring for 1 h at C, the stirring was stopped, and the resulting slurry was heated at 80 o C sinks for 3 h, then filters and washes for 90 o C under vacuum for 36 h, the ammonium fluoride in the filtrate was recycled as a reactant for the next reaction. Then 1 g of the treated oil shale ash and iron tailings were dispersed in an aqueous solution containing 25 g of nickel nitrate, ultrasonically treated for 10 min, and then transferred to a hydrothermal kettle at 220 o Under the environment of C, the water is heated for 24 hours. Filte...

Embodiment 3

[0027] After crushing the waste diatomaceous earth, put it in the muffle furnace at 800 o Activated by roasting at C for 6 h, using activated waste diatomaceous earth and 10 mol / L NH 4 F solution is the reaction raw material, at 60 o C for 6 h and filtered while hot. NH produced during the reaction 3 Collected with deionized water to obtain NH 3 ·H 2 O. Add the filtrate to the above NH 3 ·H 2 O, 50 o After heating and stirring for 1 h at C, the stirring was stopped, and the resulting slurry was heated at 50 o C sinks for 3 h, then filters and washes for 90 oC under vacuum for 26 h, the ammonium fluoride in the filtrate was recycled as a reactant for the next reaction. Then 1 g of waste diatomaceous earth after treatment was dispersed in an aqueous solution containing 25 g of nickel nitrate, ultrasonically treated for 10 min, and then moved to a hydrothermal kettle at 150 o Under the environment of C, the water is heated for 48 h. Filtered, washed several times with...

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Abstract

The invention discloses a method for preparing a basic nickel silicate catalyst from silicon-containing industrial solid waste, and belongs to the technical field of solid waste resource utilization.Pretreated silicon-containing industrial solid waste is adopted as a silicon source, a silicon-based precursor and a nickel-based precursor are added at the same time, three-dimensional basic nickel silicate is synthesized in a one-step hydrothermal mode, and the defect that a step-by-step synthesis method is tedious in step is overcome. Silicon-containing industrial solid waste is adopted as a silicon source, the nickel silicate material is prepared through a one-step hydrothermal method, the process is simple, operation is easy and convenient, the preparation period is short, and a special reaction container is not needed. The used raw materials are relatively low in cost, high-valued utilization of wastes is realized, and the method is suitable for batch production. The basic nickel silicate catalyst obtained by the invention has the advantages of high specific surface area, high mechanical strength, high activity, high stability, good thermal stability and low cost, and is suitablefor high-temperature catalytic reaction after reduction.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid waste, and in particular relates to a method for preparing a basic nickel silicate catalyst from silicon-containing industrial solid waste. Background technique [0002] Industrial solid waste is the waste that is temporarily unusable or unintentionally used by the discharge subject that is discharged from industrial and agricultural production and daily life. The discharge of industrial solid waste occupies land and pollutes the environment at the same time. The full and reasonable use of industrial solid waste not only has economic benefits, but more importantly, it has huge environmental and social benefits. [0003] Nickel silicate has excellent physical and chemical properties in battery materials, magnetic substances and catalyst supports. At present, the research on nano-nickel-containing functional materials mainly focuses on one-dimensional fields such as nanorods, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J35/10B01J37/10C10L3/08C01B33/20B82Y40/00
CPCB01J23/755B01J35/023B01J35/026B01J35/1004B01J37/10C10L3/08C01B33/20B82Y40/00C01P2004/24C01P2004/45
Inventor 刘庆董浩杨洪远张腾飞
Owner SHANDONG UNIV OF SCI & TECH
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