CN106186116A - Wastewater purificant being added with hydroxy ethylene diphosphonic acid and preparation method thereof - Google Patents
Wastewater purificant being added with hydroxy ethylene diphosphonic acid and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of wastewater purificant being added with hydroxy ethylene diphosphonic acid, be prepared by the raw materials in: PDDA 10 15 parts, hydroxy ethylene diphosphonic acid 10 15 parts, polyacrylate 7 12 parts, polymine 38 parts, 5 10 parts of polyester fiber, calcite in powder 4 10 parts, humic acids 13 parts, sodium peroxydisulfate 48 parts, 24 parts of tannic acid, cinnamic acid 36 parts, aluminium oxide 59 parts, manganese nitrate 25 parts, carbonic acid double tridecane alcohol ester 25 parts, heat stabilizer 37 parts, coupling agent 14 parts, flocculation aid 13 parts.The wastewater purificant being added with hydroxy ethylene diphosphonic acid being prepared from, its sewage purification ability is strong, can effectively remove the heavy metal contaminants in waste water.Meanwhile, the preparation method of this wastewater purificant being added with hydroxy ethylene diphosphonic acid is also disclosed.
Description
Technical field
The present invention relates to waste water treating agent field, particularly to the wastewater purificant being added with hydroxy ethylene diphosphonic acid
And preparation method thereof.
Background technology
The continuous propelling built along with China's industrialization, it is the severeest that water pollutes situation.Water pollution control has become as works as
The problem of modern World Focusing, with for water pollution control, seeks a kind of effective sewage treatmentmethod, or sewage-treating agent, makes
Discharge standard can be reached after sewage disposal, be numerous enterprises problem in urgent need to solve.In recent years, in water treatment field,
The exploitation of inorganic agent relates to many aspects.Inorganic agent is not only stable to the disposal ability of sewage, can effectively settle, wad a quilt with cotton
Solidifying, minimizing harmful substance, inorganic agent itself is also particularly important on the impact of water quality simultaneously, it is impossible to water quality causes secondary dirty
Dye, water quality is wanted nontoxic or along with pollutant removal to consume in the lump by the inorganic agent of residual.In recent years, research found hydroxyl
The performance of base ethylidene diphosphonic acid is special, can apply in the inorganic agent of waste water control.Hydroxy ethylene diphosphonic acid has resistance
Dirt corrosion mitigating effect is good, and has the features such as high temperature resistant, good in oxidation resistance, low toxicity, is mainly used in the scale inhibition of industrial circulating cooling water
And inhibition, especially can form stable complex with many kinds of metal ions, have in the waste water that heavy metal pollution is serious processes
Significantly effect.So being now to develop a wastewater purificant being added with hydroxy ethylene diphosphonic acid to seem the heaviest
Want.
Summary of the invention
For solve above-mentioned technical problem, the present invention provide a kind of wastewater purificant being added with hydroxy ethylene diphosphonic acid and
Its preparation method, by using specified raw material to be combined, coordinates corresponding production technology, and obtain is added with hydroxy ethylene
The wastewater purificant of di 2 ethylhexyl phosphonic acid, its sewage purification ability is strong, can effectively remove the heavy metal contaminants in waste water, it is possible to meet
The requirement of industry, has preferable application prospect.
The purpose of the present invention can be achieved through the following technical solutions:
It is added with the wastewater purificant of hydroxy ethylene diphosphonic acid, is prepared by the raw materials in: poly dimethyl two allyl
Ammonium chloride 10-15 part, hydroxy ethylene diphosphonic acid 10-15 part, polyacrylate 7-12 part, polymine 3-8 part, polyester
Fiber 5-10 part, calcite in powder 4-10 part, humic acids 1-3 part, sodium peroxydisulfate 4-8 part, tannic acid 2-4 part, cinnamic acid 3-6 part,
Aluminium oxide 5-9 part, manganese nitrate 2-5 part, carbonic acid double tridecane alcohol ester 2-5 part, heat stabilizer 3-7 part, coupling agent 1-4 part, help solidifying
Agent 1-3 part.
Preferably, described heat stabilizer is selected from epoxy glyceride, Dythal, barium succinate, phosphorous acid
One or more in magnesium.
Preferably, described coupling agent selected from orthosilicic acid allyl ester, aminobenzyl phosphate, octyl group three isopropoxy stannum, double 16
One or more in alkylboronic acids isopropyl ester.
Preferably, one or more in sodium alginate, sodium silicate, sodium citrate, sodium salicylate of described flocculation aid.
The preparation method of the described wastewater purificant being added with hydroxy ethylene diphosphonic acid, comprises the following steps:
(1) each raw material is weighed according to weight portion；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 200-300 mesh sieve, obtain the mixture that sieves, speed of agitator
For 800-1000 rev/min, mixing time is 35 minutes；
(3) sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, heat stabilizer are added
In the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injecting reactor together, be filled with noble gas, reaction in furnace temperature is 65-
95 DEG C, react 20-40 minute, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 800-
1000 revs/min, reaction temperature is 75-80 DEG C, then sequentially adds coupling agent, flocculation aid, 25 minutes response time, natural
It is cooled to 40 DEG C, obtains inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 15-20 minute, Ultrasonic Pulverization instrument power is 220-
250KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 100-150 rev/min, blower fan
Power is 11KW, gets product.
Preferably, the noble gas in described step (3) is nitrogen gas.
Compared with prior art, it has the beneficial effect that the present invention
(1) wastewater purificant being added with hydroxy ethylene diphosphonic acid of the present invention is with PDDA, hydroxyl
Base ethylidene diphosphonic acid, polyacrylate, polymine, polyester fiber, calcite in powder, humic acids are main component, pass through
Add sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, carbonic acid double tridecane alcohol ester, heat stabilizer, coupling agent, help
Solidifying agent, is aided with the techniques such as stirring is sieved, noble gas reacts, mixing banburying, Ultrasonic Pulverization, centrifugal granulating coating so that preparation
The wastewater purificant being added with hydroxy ethylene diphosphonic acid, its sewage purification ability is strong, can effectively remove in waste water
Heavy metal contaminants, it is possible to meet the requirement of industry, there is preferable application prospect.
(2) the wastewater purificant raw material being added with hydroxy ethylene diphosphonic acid of the present invention is cheap, technique simple, is suitable to big
Technical scaleization is used, practical.
Detailed description of the invention
Below in conjunction with specific embodiment, the technical scheme of invention is described in detail.
Embodiment 1
(1) PDDA 10 parts, hydroxy ethylene diphosphonic acid 10 parts, polyacrylic acid are weighed according to weight portion
Salt 7 parts, polymine 3 parts, 5 parts of polyester fiber, calcite in powder 4 parts, humic acids 1 part, sodium peroxydisulfate 4 parts, 2 parts of tannic acid,
Cinnamic acid 3 parts, aluminium oxide 5 parts, manganese nitrate 2 parts, carbonic acid double tridecane alcohol ester 2 parts, epoxy glyceride 3 parts, orthosilicic acid allyl ester 1
Part, sodium alginate 1 part；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 200 mesh sieves, obtain the mixture that sieves, and speed of agitator is
800 revs/min, mixing time is 35 minutes；
(3) sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, epoxy glyceride are added
In the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injecting reactor together, be filled with nitrogen, reaction in furnace temperature is 65 DEG C, instead
Answer 20 minutes, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 800
Rev/min, reaction temperature is 75 DEG C, then sequentially adds orthosilicic acid allyl ester, sodium alginate, 25 minutes response time, from
So it is cooled to 40 DEG C, obtains inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 15 minutes, Ultrasonic Pulverization instrument power is 220KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 100 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
Embodiment 2
(1) PDDA 11 parts, hydroxy ethylene diphosphonic acid 12 parts, polyacrylic acid are weighed according to weight portion
Salt 9 parts, polymine 4 parts, 6 parts of polyester fiber, calcite in powder 5 parts, humic acids 2 parts, sodium peroxydisulfate 5 parts, 2 parts of tannic acid,
Cinnamic acid 4 parts, aluminium oxide 6 parts, manganese nitrate 3 parts, carbonic acid double tridecane alcohol ester 3 parts, Dythal 4 parts, phosphoric acid
Ammonia benzyl ester 2 parts, sodium citrate 1 part；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 250 mesh sieves, obtain the mixture that sieves, and speed of agitator is
900 revs/min, mixing time is 35 minutes；
(3) by sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, carbonic acid double tridecane alcohol ester, dibasic O-phthalic
Lead plumbate adds in the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injects reactor together, is filled with nitrogen, reaction in furnace temperature
It is 70 DEG C, reacts 25 minutes, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 900
Rev/min, reaction temperature is 77 DEG C, then sequentially adds aminobenzyl phosphate, sodium citrate, 25 minutes response time, natural
It is cooled to 40 DEG C, obtains inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 17 minutes, Ultrasonic Pulverization instrument power is 230KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 115 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
Embodiment 3
(1) PDDA 13 parts, hydroxy ethylene diphosphonic acid 14 parts, polyacrylic acid are weighed according to weight portion
Salt 10 parts, polymine 6 parts, 8 parts of polyester fiber, calcite in powder 9 parts, humic acids 2 parts, sodium peroxydisulfate 7 parts, 3 parts of tannic acid,
Cinnamic acid 5 parts, aluminium oxide 8 parts, manganese nitrate 4 parts, carbonic acid double tridecane alcohol ester 4 parts, barium succinate 6 parts, octyl group three isopropoxy
3 parts of stannum, sodium silicate 2 parts；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 300 mesh sieves, obtain the mixture that sieves, and speed of agitator is
950 revs/min, mixing time is 35 minutes；
(3) sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, barium succinate are added
In the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injecting reactor together, be filled with nitrogen, reaction in furnace temperature is 85 DEG C, instead
Answer 30 minutes, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 950
Rev/min, reaction temperature is 79 DEG C, then sequentially adds octyl group three isopropoxy stannum, sodium silicate, 25 minutes response time,
Naturally cool to 40 DEG C, obtain inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 18 minutes, Ultrasonic Pulverization instrument power is 240KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 130 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
Embodiment 4
(1) PDDA 15 parts, hydroxy ethylene diphosphonic acid 15 parts, polyacrylic acid are weighed according to weight portion
Salt 12 parts, polymine 8 parts, 10 parts of polyester fiber, calcite in powder 10 parts, humic acids 3 parts, sodium peroxydisulfate 8 parts, tannic acid 4
Part, cinnamic acid 6 parts, aluminium oxide 9 parts, manganese nitrate 5 parts, carbonic acid double tridecane alcohol ester 5 parts, 7 parts of phosphorous acid magnesium, double hexadecyl boron
Isopropyl propionate 4 parts, sodium salicylate 3 parts；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 300 mesh sieves, obtain the mixture that sieves, and speed of agitator is
1000 revs/min, mixing time is 35 minutes；
(3) sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, phosphorous acid magnesium are added
In the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injecting reactor together, be filled with nitrogen, reaction in furnace temperature is 95 DEG C, instead
Answer 40 minutes, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 1000
Rev/min, reaction temperature is 80 DEG C, then sequentially adds isopropyl bishexadecyl borate, sodium salicylate, response time 25
Minute, naturally cool to 40 DEG C, obtain inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 20 minutes, Ultrasonic Pulverization instrument power is 250KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 150 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
Comparative example 1
(1) PDDA 10 parts, hydroxy ethylene diphosphonic acid 10 parts, polyacrylic acid are weighed according to weight portion
Salt 7 parts, polymine 3 parts, calcite in powder 4 parts, humic acids 1 part, sodium peroxydisulfate 4 parts, cinnamic acid 3 parts, aluminium oxide 5 parts, nitre
2 parts of manganese of acid, carbonic acid double tridecane alcohol ester 2 parts, epoxy glyceride 3 parts, orthosilicic acid allyl ester 1 part, sodium alginate 1 part；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, calcite
Powder, humic acids add stirring in blender, pulverize, and cross 200 mesh sieves, obtain the mixture that sieves, and speed of agitator is 800 revs/min,
Mixing time is 35 minutes；
(3) sodium peroxydisulfate, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, epoxy glyceride are added 0.7%
In sodium bicarbonate solution, after being sufficiently stirred for, injecting reactor together, be filled with nitrogen, reaction in furnace temperature is 65 DEG C, reacts 20 points
Clock, is cooled to room temperature, obtains stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 800
Rev/min, reaction temperature is 75 DEG C, then sequentially adds orthosilicic acid allyl ester, sodium alginate, 25 minutes response time, from
So it is cooled to 40 DEG C, obtains inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 15 minutes, Ultrasonic Pulverization instrument power is 220KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 100 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
Comparative example 2
(1) PDDA 15 parts, hydroxy ethylene diphosphonic acid 15 parts, polyacrylic acid are weighed according to weight portion
Salt 12 parts, polymine 8 parts, 10 parts of polyester fiber, humic acids 3 parts, sodium peroxydisulfate 8 parts, 4 parts of tannic acid, aluminium oxide 9 parts,
Manganese nitrate 5 parts, carbonic acid double tridecane alcohol ester 5 parts, 7 parts of phosphorous acid magnesium, isopropyl bishexadecyl borate 4 parts, sodium salicylate 3
Part；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, humic acids add stirring in blender, pulverize, and cross 300 mesh sieves, obtain the mixture that sieves, and speed of agitator is 1000 revs/min
Clock, mixing time is 35 minutes；
(3) by sodium peroxydisulfate, tannic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, the carbon of phosphorous acid magnesium addition 0.7%
In acid hydrogen sodium solution, after being sufficiently stirred for, injecting reactor together, be filled with nitrogen, reaction in furnace temperature is 95 DEG C, reacts 40 points
Clock, is cooled to room temperature, obtains stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 1000
Rev/min, reaction temperature is 80 DEG C, then sequentially adds isopropyl bishexadecyl borate, sodium salicylate, response time 25
Minute, naturally cool to 40 DEG C, obtain inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 20 minutes, Ultrasonic Pulverization instrument power is 250KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 150 revs/min, power of fan
For 11KW, get product.
The wastewater purificant test result being added with hydroxy ethylene diphosphonic acid prepared is as shown in table 1.
By the wastewater purificant being added with hydroxy ethylene diphosphonic acid prepared of embodiment 1-4 and comparative example 1-2 respectively
Carry out COD, Biochemical oxygen demand, ammonia-nitrogen content, total copper content, these several the performance tests of total cadmium content.
Table 1
| COD (COD) | Biochemical oxygen demand (BOD) | Ammonia nitrogen (calculates with N, mg/L) | Total copper (mg/L) | Total cadmium (mg/L) | |
| Embodiment 1 | 51.4 | 9.4 | 3.9 | 0.23 | 0.005 |
| Embodiment 2 | 47.8 | 10.4 | 4.3 | 0.25 | 0.007 |
| Embodiment 3 | 49.3 | 9.8 | 3.6 | 0.21 | 0.006 |
| Embodiment 4 | 46.4 | 10.1 | 3.5 | 0.28 | 0.008 |
| Comparative example 1 | 98.2 | 40.0 | 17.7 | 1.43 | 0.016 |
| Comparative example 2 | 102.0 | 38.2 | 20.5 | 1.07 | 0.018 |
The wastewater purificant being added with hydroxy ethylene diphosphonic acid of the present invention is sub-with PDDA, hydroxyl
Ethyl di 2 ethylhexyl phosphonic acid, polyacrylate, polymine, polyester fiber, calcite in powder, humic acids are main component, by adding
Sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, carbonic acid double tridecane alcohol ester, heat stabilizer, coupling agent, flocculation aid,
It is aided with the techniques such as stirring is sieved, noble gas reacts, mixing banburying, Ultrasonic Pulverization, centrifugal granulating coating so that be prepared from
Being added with the wastewater purificant of hydroxy ethylene diphosphonic acid, its sewage purification ability is strong, can effectively remove the huge sum of money in waste water
Belong to pollutant, it is possible to meet the requirement of industry, there is preferable application prospect.The present invention is added with hydroxy ethylene diphosphonic acid
Wastewater purificant raw material is cheap, technique simple, be suitable to heavy industrialization and use, practical.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (6)
1. it is added with the wastewater purificant of hydroxy ethylene diphosphonic acid, it is characterised in that: it is prepared by the raw materials in: poly-
Dimethyl diallyl ammonium chloride 10-15 part, hydroxy ethylene diphosphonic acid 10-15 part, polyacrylate 7-12 part, polyethyleneimine
Amine 3-8 part, polyester fiber 5-10 part, calcite in powder 4-10 part, humic acids 1-3 part, sodium peroxydisulfate 4-8 part, tannic acid 2-4 part,
Cinnamic acid 3-6 part, aluminium oxide 5-9 part, manganese nitrate 2-5 part, carbonic acid double tridecane alcohol ester 2-5 part, heat stabilizer 3-7 part, coupling
Agent 1-4 part, flocculation aid 1-3 part.
The wastewater purificant being added with hydroxy ethylene diphosphonic acid the most according to claim 1, it is characterised in that: described heat
One or more in epoxy glyceride, Dythal, barium succinate, phosphorous acid magnesium of stabilizer.
The wastewater purificant being added with hydroxy ethylene diphosphonic acid the most according to claim 1, it is characterised in that: described idol
Connection agent one in orthosilicic acid allyl ester, aminobenzyl phosphate, octyl group three isopropoxy stannum, isopropyl bishexadecyl borate
Or it is several.
The wastewater purificant being added with hydroxy ethylene diphosphonic acid the most according to claim 1, it is characterised in that help described in:
One or more in sodium alginate, sodium silicate, sodium citrate, sodium salicylate of solidifying agent.
5. according to the preparation method of the arbitrary described wastewater purificant being added with hydroxy ethylene diphosphonic acid of Claims 1 to 4,
It is characterized in that, comprise the following steps:
(1) each raw material is weighed according to weight portion；
(2) by PDDA, hydroxy ethylene diphosphonic acid, polyacrylate, polymine, polyester fibre
Dimension, calcite in powder, humic acids add stirring in blender, pulverize, and cross 200-300 mesh sieve, obtain the mixture that sieves, speed of agitator
For 800-1000 rev/min, mixing time is 35 minutes；
(3) sodium peroxydisulfate, tannic acid, cinnamic acid, aluminium oxide, manganese nitrate, the double tridecane alcohol ester of carbonic acid, heat stabilizer are added
In the sodium bicarbonate solution of 0.7%, after being sufficiently stirred for, injecting reactor together, be filled with noble gas, reaction in furnace temperature is 65-
95 DEG C, react 20-40 minute, be cooled to room temperature, obtain stirring mixture；
(4) the stirring mixture of sieve mixture and the step (3) of step (2) is implanted sequentially banburying stove, mixing speed 800-
1000 revs/min, reaction temperature is 75-80 DEG C, then sequentially adds coupling agent, flocculation aid, 25 minutes response time, natural
It is cooled to 40 DEG C, obtains inorganic agent precursor；
(5) inorganic agent precursor being injected Ultrasonic Pulverization instrument, Ultrasonic Pulverization 15-20 minute, Ultrasonic Pulverization instrument power is 220-
250KW；
(6) crushed products step (5) cooled down sends into centrifugal granulating seed-coating machine, spinner velocity 100-150 rev/min, blower fan
Power is 11KW, gets product.
The preparation method of the wastewater purificant being added with hydroxy ethylene diphosphonic acid the most according to claim 5, its feature
It is: the noble gas in described step (3) is nitrogen gas.
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Application publication date: 20161207 |