CN104084112A - Ammonia gas adsorbent modified by lanthanum chloride - Google Patents

Abstract

The invention aims at providing an ammonia gas adsorbent modified by lanthanum chloride. According to the technical scheme for achieving the purpose, a preparation method of the ammonia gas adsorbent comprises the following steps: crushing fire coal furnace slag, adding a certain amount of furnace slag powder into a hydrochloric acid solution with a mass percent of 5%, slowly stirring so as to remove organic matters and other impurities on the surface, filtering after 1-5 hours, repeatedly washing the furnace slag powder with deionized water for a plurality of times, then adding the furnace slag powder into 2-6% rare earth element chloride as well as an alanthanum chloride solution, dipping at the room temperature of 20 DEG C for 6-12 hours, firing the taken furnace slag powder at 600 DEG C for 1-5 hours, and bottling the furnace slag powder for later use so as to obtain the ammonia gas adsorbent.

Description

A kind of ammonia adsorbent that utilizes lanthanum chloride modification

Technical field

The present invention relates to ammonia adsorbing domain, be specifically related to a kind of ammonia adsorbent that utilizes lanthanum chloride modification.

Background technology

Ammonia, inorganic compound, is gas under normal temperature, the gas of colourless irritant stench, soluble in water, when ammonia is water-soluble, amino molecule becomes a hydration ammonia with hydrone by Hydrogenbond, one hydration ammonia energy fraction is ionized into ammonium ion and hydroxide ion, therefore ammoniacal liquor shows alkalescent, the mucous membrane of energy skin ambustion, eyes, respiratory apparatus, people sucks too much, can cause lung swelling, thus dead.

Due to a large amount of generations of municipal sewage and industrial wastewater, and exhaust emissions, cause environment more and more to worsen.Situation day by day serious, causes control imperative.

Absorption method is to process a kind of important physical chemistry method of harmful in waste water and waste gas and difficult degradation pollutant, and active carbon is the most frequently used sorbing material, but due to lack of material, cost is higher, regeneration is difficult etc., and reason is restricted its application.Take industry and agricultural wastes is raw material, and preparation and exploitation are cheap, to replace active carbon be the important directions that sorbing material is studied to efficient adsorption material.

Summary of the invention

The object of this invention is to provide a kind of ammonia adsorbent that utilizes lanthanum chloride modification, the lack of material existing to overcome prior art, the shortcoming that cost is high.For achieving the above object, the technical solution used in the present invention is as follows:

Coal furnace ground-slag is broken, get a certain amount of pulverized slag, put into mass fraction and be 5% hydrochloric acid solution, low rate mixing, to remove surface organic matter and other impurity, filters and takes out after 1-5h, by deionized water, repeatedly rinse several times, put in the rare earth element chloride lanthanum chloride solution of 2-6%, at 20 ℃ of room temperatures, dipping takes out in 600 ℃ of roasting 1-5h after 6-12h again, bottle standby, obtain this ammonia adsorbent.

In the present invention, there is following distinguishing feature:

(1) invent described ammonia adsorbent, raw material sources are extensive, cheap;

(2) invent described ammonia absorbent preparation method simple, adsorption rate is high;

(3) invent described ammonia performance of the adsorbent and stablize, the life-span is long, can preserve for a long time use.

the specific embodiment:

Embodiment 1:

Coal furnace ground-slag is broken, take 100 g flyash, put into mass fraction and be 5% hydrochloric acid solution, low rate mixing, to remove surface organic matter and other impurity, filters and takes out after 1h, by deionized water, repeatedly rinse 3 times, put in 2% rare earth element chloride lanthanum chloride solution, dipping at 20 ℃ of room temperatures takes out in 600 ℃ of roasting 1h after 6h again, bottle standby, obtain this ammonia adsorbent.

Embodiment 2:

Coal furnace ground-slag is broken, take 100 g flyash, put into mass fraction and be 5% hydrochloric acid solution, low rate mixing, to remove surface organic matter and other impurity, filters and takes out after 3h, by deionized water, repeatedly rinse 3 times, put in 3% rare earth element chloride lanthanum chloride solution, dipping at 20 ℃ of room temperatures takes out in 600 ℃ of roasting 3h after 8h again, bottle standby, obtain this ammonia adsorbent.

Embodiment 3:

Coal furnace ground-slag is broken, take 100 g flyash, put into mass fraction and be 5% hydrochloric acid solution, low rate mixing, to remove surface organic matter and other impurity, filters and takes out after 5h, by deionized water, repeatedly rinse 3 times, put in 6% rare earth element chloride lanthanum chloride solution, dipping at 20 ℃ of room temperatures takes out in 600 ℃ of roasting 5h after 12h again, bottle standby, obtain this ammonia adsorbent.

Claims (1)

1. the invention discloses a kind of ammonia adsorbent that utilizes lanthanum chloride modification, for achieving the above object, the technical solution used in the present invention is as follows:

Coal furnace ground-slag is broken, get a certain amount of pulverized slag, put into mass fraction and be 5% hydrochloric acid solution, low rate mixing, to remove surface organic matter and other impurity, filters and takes out after 1-5h, by deionized water, repeatedly rinse several times, put in the rare earth element chloride lanthanum chloride solution of 2-6%, at 20 ℃ of room temperatures, dipping takes out in 600 ℃ of roasting 1-5h after 6-12h again, bottle standby, obtain this ammonia adsorbent.