A kind of recycling method of waste furfuryl alcohol catalyst
A catalyst and waste furfuryl alcohol technology, which is applied in chemical recovery, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as environmental pollution, resource waste, and difficulty in recycling waste furfuryl alcohol catalysts, and achieve economic benefits without resources. wasteful effect
Inactive Publication Date: 2016-04-20
石家庄恒昌环保科技有限公司
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[0025] A kind of recycling method of waste furfuryl alcohol catalyst, its concrete realization method is as follows:
[0026] (1) In a vacuum box with a volume of 12 cubic meters, 500 kilograms of waste furfuryl alcohol catalysts are loaded, and then the vacuum box is sealed. The temperature in the vacuum box is stabilized at 150°C. Organic matter such as furfuryl alcohol, furfural, and furan resin polymers in the waste furfuryl alcohol catalyst volatilizes into the recovery device, and the remaining matter is dried for 3 hours to obtain 250 kg of copper silicate and calcium oxide inorganic compound solids.
[0027] (2) After the organic matter in the recovery unit is cooled by a condenser, 250 kilograms of organic matter condensate is obtained, which is the crude product furfuryl alcohol liquid.
[0028] (3) the crude product furfuryl alcohol liquid obtained above is carried out rectifying, and concrete process is as follows:
[0029] Turn on the vacuum pump of the circulati...
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The invention discloses a recycling method of a waste furfuralcohol catalyst. The method comprises the following steps: heating, drying and dehydrating to obtain organics and an inorganic compound; cooling and distilling the organics to obtain a furfuralcohol product; acid washing and dissolving the inorganic compound, adding a sodium hydroxide solution and a sodium silicate solution to obtain a solid substance after full reaction; vacuum washing the solid substance to obtain a semi-finished furfuralcohol catalyst product; and activating the semi-finished furfuralcohol catalyst product to obtain a finished furfuralcohol catalyst product. The recycling method of the waste furfuralcohol catalyst has the beneficial effect that the furfuralcohol catalyst product obtained through separation can be sold and reused; a furfuralcohol catalyst product can also be obtained through a series of treatment on the obtained inorganic compound and can be used again; no pollutant is generated during the treatment and no resource is wasted; and the recycling method is economic and environment-friendly and the economic benefit of an enterprises is improved.
Description
technical field [0001] The invention relates to the technical field of furfuryl alcohol preparation, in particular to a recovery and reuse method of spent furfuryl alcohol catalyst. Background technique [0002] The furfuryl alcohol catalyst prepared by furfural liquid phase hydrogenation is divided into two types, one is copper chromium furfuryl alcohol catalyst, and the other is copper silicon furfuryl alcohol catalyst. Furfuryl alcohol catalysts are mainly used to prepare furfuryl alcohol products. Among them, copper-chromium-based furfuryl alcohol catalysts contain chromium ions, so this kind of catalyst products have been eliminated; copper-silicon-based furfuryl alcohol catalysts become waste furfuryl alcohol catalysts after use. The main components of this copper-silicon-based waste furfuryl alcohol catalyst are hydrated basic copper silicate complex, calcium oxide, silicon dioxide and organic matter. The traditional recovery and treatment methods of the copper-silico...
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IPC IPC(8): B01J23/78B01J23/94C07D307/44
CPCY02P20/584
Inventor 贾庆彬赵月华
Owner 石家庄恒昌环保科技有限公司