CN104888712A - Recyclable adsorbent with good separation effect - Google Patents

Abstract

The invention discloses a recyclable adsorbent with a good separation effect. The adsorbent is characterized by being prepared from the following raw materials, by weight part: 10-15 of calcium carbonate fiber, 10-15 of ferriferrous oxide magnetic powder, 20-40 of tetrabutyl titanate, 3-5 of silica sol, 6-8 of calcium aluminate, 60-80 of volcanic rock, 1-2 of ammonium bicarbonate, 3-5 of coconut charcoal, 6-8 of polytetrafluoroethylene powder, and a proper amount of deionized water. Coconut charcoal, hydrotalcite powder, and polytetrafluoroethylene powder added in the adsorbent have a synergistic effect, and are good in adsorption effect and fast in adsorption speed. The prepared adsorbent has excellent adsorption effect on various pollutants, is high in adsorption efficiency and easy to remove, and is good in reuse effect and low in cost. The adsorbent is simple, allows convenient operation, is obvious in treatment effect and good in reproducibility, and can be used for quick magnetic separation.

Description

The adsorbent that a kind of good separating effect can be recycled

Technical field

the present invention relates to a kind of absorbent fields, be specifically related to adsorbent that a kind of good separating effect can be recycled and preparation method thereof.

Background technology

Volcanic rock quality is hard as lithotome, coating surface honeycomb porous, specific area is large, and soak change without exception in water, water proofing property is splendid, fire prevention, weather resisteant is good, can prevent the deterioration caused because of ultraviolet, have nontoxic, tasteless, intensity is high, heat insulation, acid and alkali-resistance, stain resistance, corrosion-resistant, resistance toly to go mouldy, and the advantage such as pollution-free, "dead", as sorbent material, there is good application prospect.Although at present adsorption rate and adsorption capacity are improved, after absorption adsorbent and solvent not easily separated, the present invention adds magnetic material in sorbent material makes adsorbent can be good at being separated, recycle, adsorption efficiency is high, expands the range of application of adsorbent, is worthy to be popularized.

Summary of the invention

The object of this invention is to provide adsorbent that a kind of good separating effect can be recycled and preparation method thereof.

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

The adsorbent that good separating effect can be recycled, is made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, coconut husk charcoal 3-5, hydrotalcite powder 5-8, polytetrafluoroethylene powder 4-6, deionized water are appropriate;

The adsorbent that a kind of good separating effect of the present invention can be recycled, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.

Advantage of the present invention is: the present invention adopts calcium carbonate fiber to mix with TiO 2 sol, enhance the intensity of TiO 2 sol, bactericidal properties, the performance of the aspect such as adsorbance and heat resistance, adopt gelatin and PA6 to be added to define skeleton when calcining in volcanic rock and make Adhesion enhancement between volcanic rock, not easily be scattered when making adsorbent dry linting, wearability strengthens, extend service life, and double-layer porous road adsorption microspheres made by adsorbent by the present invention, enhance adsorption capacity and adsorption rate, to tiny field trash, there is good adsorption effect, expand adsorption range, the coconut husk charcoal added, hydrotalcite powder and polytetrafluoroethylene powder synergy, advantages of good adsorption effect, adsorption rate is fast, adsorbent prepared by the present invention has good adsorption effect to various pollutant, adsorption efficiency is high, and easily remove, reuse effective, simply, easy to operate, with low cost, obvious processing effect, reproducibility is good, and can be separated by rapid magnetic.

Detailed description of the invention

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

The adsorbent that good separating effect can be recycled, is made up of the raw material of following weight portion (kilogram): calcium carbonate fiber 12, butyl titanate 35, Ludox 4, calcium aluminate 7, volcanic rock 76, PA6 nylon powder 8, gelatin 3, carbonic hydroammonium 2, coconut husk charcoal 4, hydrotalcite powder 7, polytetrafluoroethylene powder 5, deionized water are appropriate;

The adsorbent that a kind of good separating effect of the present invention can be recycled, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 4 times amount is mixed, magnetic agitation 1h, continuing magnetic agitation 2h again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slowly dripping deionized water, continue stirring after gel to be formed 0.6 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 250 ° of C, calcine 1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, adopt pressure to be that mixture is pressed into bead by the ball press of 20t, select particle size after screening for subsequent use as ball core at the bead of 5-15mm scope;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550 ° of C 3h and become porous complex microsphere.

Example 0.5g adsorbent and mass concentration are that the methylene blue solution 500ml of 100mg/l reacts, and test index is as follows:

Clearance (%): 97.2;

Adsorbance (mg/g): 63.4;

Clearance (repeating 6 times, %): 66.3;

Compression strength (N/): 24;

Rate of wear (%): 1.6.

Claims (2)

1. the adsorbent that can be recycled of a good separating effect, it is characterized in that, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, coconut husk charcoal 3-5, hydrotalcite powder 5-8, polytetrafluoroethylene powder 4-6, deionized water are appropriate.

2. the adsorbent that can be recycled of a kind of good separating effect according to claim 1, is characterized in that, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.