CN104826586A - Cement clinker adsorbent and preparation method thereof - Google Patents

Abstract

The invention discloses a cement clinker adsorbent and a preparation method thereof, the cement clinker adsorbent is characterized by comprising the following ingredients by weight: 90-100 parts of straw, 0.4-1 part of ammonium bicarbonate, 25-40 parts of n-butyl titanate, 0.1-0.5 part of a boric acid ester coupling agent, 3-4 parts of polyethylene glycol (peg), 13-15 parts of vermiculite, 3-5 parts of citric acid, 11-16 parts of haydite, and right amount of distilled water; and the prepared adsorbent is good in adsorption effect, slightly affected by the environment, long in service life, and worthy of promoting.

Description

A kind of clinker adsorbent and preparation method thereof

Technical field

The present invention relates to a kind of absorbent fields, be specifically related to a kind of clinker adsorbent and preparation method thereof.

Background technology

Each department of national economy, for the various places of community service, Facilities Construction also all be unable to do without cement, so the development of cement to national economy plays a part cornerstone.Cement is indispensable a kind of construction material in human lives and social production.Along with the continuous increase of cement type, the purposes of cement is also more extensive.It is dust and waste gas that cement has an impact to atmospheric environment.Clinker discharges the gases such as nitrogen oxide, carbon dioxide, oxysulfide in sintering process, very serious on the healthy impact of environment and neighbouring resident.

Stalk is an important biomass resource in production estimation system, and its content of cellulose is higher.Native cellulose is a kind of renewable resource and a kind of novel sorbing material, and it take native cellulose as matrix, has good hydrophily and loose structure, has wide material sources, renewable, degradable, environmental friendliness, the multiple advantage such as cheap.China is large agricultural country, has abundant stalk resource, accounts for the left and right of 25% of world's stalk resource, but it is still delayed to its disposal options at present, a large amount of stalk goes out of use in field or directly burns, and this had both caused the waste of a large amount of biomass energies, also brings serious pollution to environment.Nano titanium oxide, as a kind of friendly photochemical catalyst, has good redox ability, is therefore widely used in the field such as sewage disposal, purification of air.But utilize various carrier to fix the photocatalysis effect of the adsorbent that nano titanium oxide is made in recent years and recovery utilization rate not high, the present invention is intended to prepare a kind of cheapness, productive rate is high, less energy consumption, adsorption time are short, the simple adsorbent of preparation technology, for the development of adsorbent lays the foundation.

Summary of the invention

The object of this invention is to provide a kind of clinker adsorbent and preparation method thereof.

In order to realize object of the present invention, the present invention is by following scheme implementation:

A kind of clinker adsorbent and preparation method thereof, is made up of the raw material of following weight portion: stalk 90-100, ammonium hydrogencarbonate 0.4-1, tetrabutyl titanate 25-40, boric acid ester coupler 0.1-0.5, polyethylene glycol 3-4, vermiculite 13-15, citric acid 3-5, haydite 11-16, distilled water are appropriate;

A kind of clinker adsorbent of the present invention and preparation method thereof, be made up of following concrete steps:

(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 8-20 order in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 1-2 days, again stalk and ammonium hydrogencarbonate mixing are added in Muffle furnace and heat up with the speed of 10 ~ 30 ° of C per minute, raised temperature is to 600-700 ° of C, constant temperature keeps 60-80min, naturally cools to room temperature;

(2) vermiculite and haydite are calcined 1 hour under 500-600 ° of C, mixed-powder is ground into after calcining, by mixed-powder, citric acid and distilled water mixing ageing 1-2 hour, the charing stalk and the boric acid ester coupler mixed grinding that add step (1) gained are again uniformly dispersed, again this mixture and polyethylene glycol are stirred, be heated to 50-60 ° of C, form slurry, for subsequent use after spraying dry;

(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 3-4 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 70-100ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 1-2 days, places colloidal sol in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 480-520 ° of C, calcine 4-6h.

Advantage of the present invention is: the present invention utilizes discarded straw for biomass carbon, achieve twice laid, the active carbon specific area of preparation is large, advantages of good adsorption effect, and utilize boric acid ester coupler and other to have adsorbing ground material, enhance the physisorption of material itself, and as the carrier of titanium dioxide, improve the photocatalytic activity of titanium dioxide, and recycle conveniently, increase economic efficiency, adsorbent prepared by the present invention is effective, and affected by environment little, long service life, is worthy to be popularized.

Detailed description of the invention

Below by instantiation, the present invention is described in detail.

A kind of clinker adsorbent and preparation method thereof, is made up of the raw material of following weight portion (kilogram): stalk 100, ammonium hydrogencarbonate 0.6, tetrabutyl titanate 34, boric acid ester coupler 0.2, polyethylene glycol 3, vermiculite 14, citric acid 4, haydite 13, distilled water are appropriate;

A kind of clinker adsorbent of the present invention and preparation method thereof, be made up of following concrete steps:

(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 20 orders in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 2 days, again stalk and ammonium hydrogencarbonate mixing are added in Muffle furnace and heat up with the speed of 10 ~ 30 ° of C per minute, raised temperature to 650 ° C, constant temperature keeps 80min, naturally cools to room temperature;

(2) vermiculite and haydite are calcined 1 hour under 600 ° of C, mixed-powder is ground into after calcining, by mixed-powder, citric acid and distilled water mixing ageing 1 hour, the charing stalk and the boric acid ester coupler mixed grinding that add step (1) gained are again uniformly dispersed, again this mixture and polyethylene glycol are stirred, be heated to 60 ° of C, form slurry, for subsequent use after spraying dry;

(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 3 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 80ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 2 days, colloidal sol is placed in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 500 ° of C, calcine 4h.

After measured, the adsorbent capacity prepared by the present invention is 4.34mmol/g, reaches 65.2% to the clearance rate of dust.

Claims (2)

1. clinker adsorbent and preparation method thereof, it is characterized in that, be made up of the raw material of following weight portion: stalk 90-100, ammonium hydrogencarbonate 0.4-1, tetrabutyl titanate 25-40, boric acid ester coupler 0.1-0.5, polyethylene glycol 3-4, vermiculite 13-15, citric acid 3-5, haydite 11-16, distilled water are appropriate.

2. a kind of clinker adsorbent and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:

(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 8-20 order in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 1-2 days, again stalk and ammonium hydrogencarbonate mixing are added in Muffle furnace and heat up with the speed of 10 ~ 30 ° of C per minute, raised temperature is to 600-700 ° of C, constant temperature keeps 60-80min, naturally cools to room temperature;

(2) vermiculite and haydite are calcined 1 hour under 500-600 ° of C, mixed-powder is ground into after calcining, by mixed-powder, citric acid and distilled water mixing ageing 1-2 hour, the charing stalk and the boric acid ester coupler mixed grinding that add step (1) gained are again uniformly dispersed, again this mixture and polyethylene glycol are stirred, be heated to 50-60 ° of C, form slurry, for subsequent use after spraying dry;

(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 3-4 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 70-100ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 1-2 days, places colloidal sol in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 480-520 ° of C, calcine 4-6h.