CN114436298A - Modified baking soda, preparation method and application - Google Patents
Modified baking soda, preparation method and application Download PDFInfo
- Publication number
- CN114436298A CN114436298A CN202111682663.2A CN202111682663A CN114436298A CN 114436298 A CN114436298 A CN 114436298A CN 202111682663 A CN202111682663 A CN 202111682663A CN 114436298 A CN114436298 A CN 114436298A
- Authority
- CN
- China
- Prior art keywords
- baking soda
- modified
- bentonite
- gas
- vegetable oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 title claims abstract description 137
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 42
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 42
- 239000000440 bentonite Substances 0.000 claims abstract description 32
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 32
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 27
- 239000008158 vegetable oil Substances 0.000 claims abstract description 27
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 16
- 229940092782 bentonite Drugs 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 13
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 10
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 10
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 10
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000004890 Hydrophobing Agent Substances 0.000 claims description 7
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical group O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 7
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 7
- 229940080314 sodium bentonite Drugs 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000004537 pulping Methods 0.000 claims description 4
- 239000003549 soybean oil Substances 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 4
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 3
- 235000019438 castor oil Nutrition 0.000 claims description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 3
- 235000021388 linseed oil Nutrition 0.000 claims description 3
- 239000000944 linseed oil Substances 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 230000004584 weight gain Effects 0.000 description 6
- 235000019786 weight gain Nutrition 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000281 calcium bentonite Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 235000012216 bentonite Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/42—Preventing the absorption of moisture or caking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Fats And Perfumes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides modified baking soda, a preparation method and application thereof, wherein the modified baking soda comprises the following components in parts by weight: 80 to 120 portions of baking soda and 3 to 7 portions of hydrophobic agent. In the invention, the baking soda can be easily stored by a compound system formed by baking soda and a hydrophobic agent containing vegetable oil and bentonite.
Description
Technical Field
The invention belongs to the field of waste gas treating agents, and particularly relates to modified baking soda, a preparation method and application thereof.
Background
Sulfur dioxide is a common two-component acid gas in exhaust gas and is very harmful to the environment.
However, during storage, baking soda is prone to absorb water, moisture and caking, which is not beneficial for subsequent applications, reduces the waste gas treatment efficiency, and also causes blockage of industrial equipment.
Disclosure of Invention
The invention mainly aims to provide modified baking soda, a preparation method and application, and aims to provide baking soda easy to store.
In order to achieve the aim, the invention provides modified baking soda, which comprises the following components in parts by weight:
80 to 120 portions of baking soda and 3 to 7 portions of hydrophobic agent;
wherein the hydrophobic agent comprises vegetable oil and bentonite.
Optionally, in the hydrophobizing agent, the vegetable oil is 40 to 60 parts by weight, and the bentonite is 10 to 20 parts by weight.
Optionally, the hydrophobizing agent further comprises 25 to 45 parts by weight of hydroxypropyl methylcellulose.
Optionally, the vegetable oil comprises at least one of peanut oil, soybean oil, linseed oil, castor oil, and rapeseed oil; and/or the presence of a gas in the gas,
the bentonite is sodium bentonite; and/or the presence of a gas in the gas,
the particle size of the bentonite is 500-800 meshes.
In addition, the invention also provides a preparation method of the modified baking soda, which comprises the following steps:
mixing the vegetable oil and the bentonite, and pulping to obtain a hydrophobing agent;
and mixing the hydrophobizing agent with the baking soda to obtain the modified baking soda.
Optionally, in the step of mixing the vegetable oil and the bentonite, and slurrying to obtain the hydrophobing agent, the vegetable oil and the bentonite are mixed at the temperature of 110-130 ℃; and/or the presence of a gas in the gas,
and in the process of mixing the vegetable oil and the bentonite, adding hydroxypropyl methyl cellulose for mixing.
Optionally, in the step of mixing the hydrophobizing agent with the baking soda to obtain the modified baking soda, the hydrophobizing agent is mixed with the baking soda at the temperature of 90-110 ℃.
In addition, the modified baking soda is used for treating acid gas, and is ground and then contacted with the acid gas for deacidification reaction.
Optionally, the modified baking soda is ground to 500-600 meshes and then is contacted with an acid gas for deacidification reaction.
In the invention, the baking soda is easier to store by a compound system formed by the baking soda and the hydrophobing agent containing vegetable oil and bentonite.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the preparation of the modified baking soda of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments.
It should be noted that those whose specific conditions are not specified in the examples were performed according to the conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The sodium bicarbonate, namely the baking soda, can effectively remove sulfur dioxide, nitrogen oxides, hydrochloric acid and other acidic components in the waste gas, so that the sodium bicarbonate is applied to the large-scale treatment of the waste gas containing the acidic components.
However, during storage, baking soda is prone to absorb water, moisture and caking, which is not beneficial for subsequent applications, reduces the waste gas treatment efficiency, and also causes blockage of industrial equipment.
In view of the fact that baking soda is easy to absorb moisture and agglomerate in the background art, the invention provides modified baking soda, and raw materials of the modified baking soda comprise the following components in parts by weight:
80 to 120 portions of baking soda and 3 to 7 portions of hydrophobic agent;
wherein the hydrophobic agent comprises vegetable oil and bentonite.
In the invention, the baking soda is easier to store by a compound system formed by the baking soda and the hydrophobing agent containing vegetable oil and bentonite.
Optionally, in the hydrophobizing agent, the weight part of the vegetable oil is 40 to 60 parts, and the weight part of the bentonite is 10 to 20 parts.
The beneficial effect of adopting the further technical scheme is that: the hydrophobic effect of the baking soda can be further improved.
Optionally, the hydrophobizing agent further comprises 25 to 45 parts by weight of hydroxypropyl methylcellulose.
The further technical scheme has the beneficial effect that the modification effect of the baking soda can be further improved.
Optionally, the vegetable oil comprises at least one of peanut oil, soybean oil, linseed oil, castor oil, and rapeseed oil.
The beneficial effect of adopting the further technical scheme is that the selected vegetable oil has good hydrophobic effect and low modification cost.
Optionally, the bentonite is sodium bentonite, and the particle size of the bentonite is 500-800 meshes.
The further technical scheme has the beneficial effects that the raw materials can be mixed more uniformly, so that the hydrophobic effect is further improved, and the deacidification effect can also be further improved.
In addition, the invention also provides a preparation method of the modified baking soda, which comprises the following steps:
step S10: mixing the vegetable oil and the bentonite, and pulping to obtain a hydrophobing agent;
step S20: and mixing the hydrophobizing agent with the baking soda to obtain the modified baking soda.
By adopting the preparation method, the baking soda which is easy to store can be prepared.
Optionally, in step S10, the vegetable oil and the bentonite are mixed at 110 ℃ to 130 ℃.
The further technical scheme has the advantages that the slurry of the hydrophobic agent can be more completely slurried at 100-130 ℃, and the waterproof effect and the deacidification efficiency are improved.
Optionally, the vegetable oil and the bentonite are mixed while adding the hydroxypropyl methyl cellulose.
The modified baking soda with the further improved waterproof effect can be prepared.
Optionally, in step S20, the hydrophobizing agent is mixed with the baking soda at a temperature of 90 ℃ to 110 ℃.
The further technical scheme has the beneficial effects that the hydrophobic agent can be more uniformly covered on the surface layer of the baking soda by mixing at the temperature of 90-110 ℃, so that the modification effect of the baking soda is further improved.
In addition, the invention also provides an application of the modified baking soda in treating acid gas, wherein the modified baking soda is ground and then is in contact reaction with the acid gas.
In the invention, the modified baking soda is ground and activated, and then is contacted with acid gas to carry out deacidification reaction, so that the removal of acid components in the acid gas can be realized.
Optionally, the modified baking soda is ground to 500-600 meshes and then is contacted with acid gas for deacidification reaction.
In the present invention, the deacidification effect is further ensured by grinding the baking soda to 500-600 meshes.
The technical solutions of the present invention are further described in detail below with reference to specific examples and drawings, it should be understood that the following examples are merely illustrative of the present invention and are not intended to limit the present invention.
In the specific embodiment of the invention, the raw materials are described as follows:
calcium bentonite: 800-mesh calcium bentonite purchased from Ganfu mineral processing factory in Lingshu county.
Sodium bentonite: 800 mesh sodium bentonite purchased from Ganfu mineral processing factory in Lingshu county.
Hydroxypropyl methylcellulose: purchased from Merck Sigma-Aldrich, H7509.
Examples 1 to 8
Examples 1 to 8 provide modified baking soda including the raw materials in the parts by weight shown in table 1.
TABLE 1 ingredient Table of modified sodium bicarbonate
Examples 1 to 8 also provide a method for preparing modified baking soda, which comprises the following specific steps:
step S10: mixing vegetable oil, bentonite and hydroxypropyl methyl cellulose according to the ingredient table in table 1, and pulping to obtain a hydrophobing agent;
step S20: and mixing a hydrophobizing agent with baking soda according to the ingredient table of table 1 to obtain the modified baking soda. The mixing temperatures in steps S10 and S20 in examples 1 to 7 are shown in table 2.
TABLE 2 blending temperatures of step S10 and step S20
| Mixing temperature (. degree.C.) in step S10 | Mixing temperature (. degree.C.) in step S20 | |
| Example 1 | 100 | 90 |
| Example 2 | 130 | 110 |
| Example 3 | 120 | 100 |
| Example 4 | 115 | 105 |
| Example 5 | 125 | 95 |
| Example 6 | 110 | 100 |
| Example 7 | 80 | 100 |
| Example 8 | 120 | At room temperature |
Examples 9 to 18
Examples 9-18 provide for the use of the modified baking soda of examples 1-8 in the treatment of flue gas by the following specific method:
grinding the modified baking soda, dispersing the ground modified baking soda in a pipeline containing gas to be treated by using a fan or a spraying device for contact reaction, wherein the gas to be treated contains 400mg/Nm of initial concentration3SO of (A)2And an initial concentration of 100mg/Nm3Hydrochloric acid, the temperature of the gas to be treated is 200 ℃, and SO of the gas after the gas is required to be treated2The discharge concentration is controlled to 50mg/Nm3Hereinafter, the HCl emission concentration is controlled to 10mg/Nm3If the discharge concentration of the sodium bicarbonate does not reach the standard in the treatment process, increasing the feeding speed of the modified sodium bicarbonate until the discharge concentration reaches the standard, continuously pumping out and recycling the modified sodium bicarbonate by using air draft equipment in the contact reaction process, finally calculating the average dosage of 8 hours, taking the conventional sodium bicarbonate as a reference, and calculating the result and the grinding mesh number as shown in table 3.
TABLE 3 number of grinding meshes and average input
As can be seen from Table 3, the modified baking soda of the present invention has a reduced amount of acidic waste gas treated compared to the conventional baking soda after grinding, when the grinding is carried out to the same number of meshes.
When the grinding particle size is 600 mesh, the amount of the powder to be charged may be further reduced to 81kg/h when the mixing temperature in step S10 is 100 to 130 ℃ and the mixing temperature in step S20 is 90 to 110 ℃.
When the grinding particle size is 600, the content of sodium bentonite is 10-20 parts, and the feeding amount is further reduced to be below 80 kg/h.
When the grinding particle size is 500-600 meshes, the deacidification performance of the modified sodium bicarbonate can be obviously improved.
Comparative example 1
This comparative example provides a modified baking soda prepared in a manner substantially identical to that of example 3, except that the hydrophobizing agent is free of bentonite.
Comparative example 2
This comparative example provides a modified baking soda prepared by the method of:
100 parts of baking soda, 2.5 parts of soybean oil, 0.75 part of bentonite and 1.75 parts of hydroxypropyl methyl cellulose are mixed to obtain the modified baking soda.
Test example 1
The modified baking soda of the examples 1 to 8 and the modified baking soda of the comparative examples 1 to 2 and the conventional baking soda are subjected to a waterproof test, and the test method is as follows:
a straight-barrel reactor is adopted for detection, the lower part of the reactor is a conical shell which is connected with an air inlet, and a 200-mesh screen is arranged in the conical shell. Sodium bicarbonate was added from the top of the topping-free straight barrel reactor. Then, air with 100% humidity is introduced from an air inlet connected with the conical shell, the air inlet speed is set to be 5L/min, the air is continuously introduced for half an hour, the weight of the conical shell is weighed after the fluidity of the conical shell is observed, the weight gain rate is calculated, and the detection result is shown in table 4.
TABLE 4 waterproof Performance test results
| Fluidity of the resin | Weight gain (%) | |
| Example 1 | Loose and not agglomerated, and normal fluidity | 1.0 |
| Example 2 | Loose and not agglomerated, and normal fluidity | 0.5 |
| Example 3 | Loose and not agglomerated, and normal fluidity | 0.2 |
| Example 4 | Loose and not agglomerated, and normal fluidity | 0.8 |
| Example 5 | Loose and not agglomerated, and normal fluidity | 1.1 |
| Example 6 | Loose, not agglomerated and normal fluidity | 0.3 |
| Example 7 | Loose and not agglomerated, and normal fluidity | 0.85 |
| Example 8 | Loose and not agglomerated, and normal fluidity | 0.92 |
| Comparative example 1 | Wet and conglomerate, poor fluidity | 3 |
| Comparative example 2 | Moist and conglobation and poor fluidity | 8 |
| Conventional baking soda | Wet and conglomerate, poor fluidity | 10 |
As can be seen from Table 1, the moisture resistance of examples 1 to 8 is greatly improved compared with that of the conventional baking soda, and the flowing property test of the baking soda can normally flow; compared with comparative example 1, the bentonite is added, compared with comparative example 2, the weight gain rate of the mixture prepared by the hydrophobizing agent and then mixed with the baking soda is less than 1.2%.
80 to 120 parts of baking soda and 5 to 7 parts of a hydrophobic agent, wherein when the weight parts of vegetable oil in the hydrophobic agent are 40 to 60 parts of vegetable oil, 10 to 20 parts of bentonite and 25 to 45 parts of hydroxypropyl methyl cellulose, the weight gain rate is less than 1 percent.
Meanwhile, when the mixing temperature in the step S10 is 100 to 130 ℃ and the mixing temperature in the step S20 is 90 to 110 ℃, the weight gain is further reduced to 0.85% or less.
Further, when all of the bentonite is sodium bentonite, the weight gain is further reduced to 0.8% or less.
The above is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims (9)
1. The modified baking soda is characterized in that raw materials of the modified baking soda comprise the following components in parts by weight:
80 to 120 portions of baking soda and 3 to 7 portions of hydrophobic agent;
wherein the hydrophobic agent comprises vegetable oil and bentonite.
2. The modified baking soda as claimed in claim 1, wherein the hydrophobic agent comprises 40 to 60 parts by weight of the vegetable oil and 10 to 20 parts by weight of the bentonite.
3. The modified baking soda as claimed in claim 1 or 2, wherein the hydrophobizing agent further comprises 25 to 45 parts by weight of hydroxypropylmethylcellulose.
4. The modified baking soda as claimed in claim 1, wherein the vegetable oil includes at least one of peanut oil, soybean oil, linseed oil, castor oil and rapeseed oil; and/or the presence of a gas in the gas,
the bentonite is sodium bentonite; and/or the presence of a gas in the gas,
the particle size of the bentonite is 500-800 meshes.
5. The preparation method of the modified baking soda as claimed in any one of claims 1 to 4, characterized in that the preparation method of the modified baking soda comprises the following steps:
mixing the vegetable oil and the bentonite, and pulping to obtain a hydrophobing agent;
and mixing the hydrophobizing agent with the baking soda to obtain the modified baking soda.
6. The method for preparing modified baking soda as claimed in claim 5, wherein in the step of mixing the vegetable oil and the bentonite, and obtaining the hydrophobizing agent after slurrying, the vegetable oil and the bentonite are mixed at a temperature of 110 ℃ to 130 ℃; and/or the presence of a gas in the gas,
and in the process of mixing the vegetable oil and the bentonite, adding hydroxypropyl methyl cellulose for mixing.
7. The method for preparing modified baking soda as claimed in claim 5, wherein in the step of mixing the hydrophobizing agent with baking soda to obtain the modified baking soda, the hydrophobizing agent is mixed with the baking soda at a temperature of 90 ℃ to 110 ℃.
8. The use of the modified baking soda as claimed in any one of claims 1 to 4 in the treatment of acid gases, wherein the modified baking soda is ground and then contacted with acid gases for deacidification reaction.
9. The use of the modified baking soda as claimed in claim 8, wherein the modified baking soda is ground to 500-600 mesh and then contacted with acid gas for deacidification reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682663.2A CN114436298A (en) | 2021-12-29 | 2021-12-29 | Modified baking soda, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682663.2A CN114436298A (en) | 2021-12-29 | 2021-12-29 | Modified baking soda, preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114436298A true CN114436298A (en) | 2022-05-06 |
Family
ID=81365205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111682663.2A Pending CN114436298A (en) | 2021-12-29 | 2021-12-29 | Modified baking soda, preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114436298A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001084A2 (en) * | 1998-11-16 | 2000-05-17 | ZFB Zentrum für Bucherhaltung GmbH | Deacidifying agent |
| CN104245118A (en) * | 2012-03-16 | 2014-12-24 | 栗田工业株式会社 | Acidic gas treating agent, method for producing same and additive for acidic gas treating agents |
| CN105344326A (en) * | 2015-11-09 | 2016-02-24 | 建德丽园环保科技有限公司 | Preparation method for ultrafine sodium bicarbonate flue gas purifying medicament |
| CN111068511A (en) * | 2019-12-18 | 2020-04-28 | 东南大学 | Deacidifying agent for removing acid gas in high-temperature flue gas and preparation method thereof |
| CN112999859A (en) * | 2021-03-17 | 2021-06-22 | 河北驰田环保科技有限公司 | High-efficiency desulfurizer for industrial tail gas and preparation method thereof |
-
2021
- 2021-12-29 CN CN202111682663.2A patent/CN114436298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001084A2 (en) * | 1998-11-16 | 2000-05-17 | ZFB Zentrum für Bucherhaltung GmbH | Deacidifying agent |
| CN104245118A (en) * | 2012-03-16 | 2014-12-24 | 栗田工业株式会社 | Acidic gas treating agent, method for producing same and additive for acidic gas treating agents |
| CN105344326A (en) * | 2015-11-09 | 2016-02-24 | 建德丽园环保科技有限公司 | Preparation method for ultrafine sodium bicarbonate flue gas purifying medicament |
| CN111068511A (en) * | 2019-12-18 | 2020-04-28 | 东南大学 | Deacidifying agent for removing acid gas in high-temperature flue gas and preparation method thereof |
| CN112999859A (en) * | 2021-03-17 | 2021-06-22 | 河北驰田环保科技有限公司 | High-efficiency desulfurizer for industrial tail gas and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105597701B (en) | A kind of adsorbent for handling boiler smoke | |
| CN100488600C (en) | Method for preparing flue gas desulfurization agent | |
| CA2820516C (en) | High performance mercury capture | |
| CN105879878A (en) | Denitration catalyst for high-temperature flue gas produced during burning of coal as well as preparation method and application of denitration catalyst | |
| CN114436298A (en) | Modified baking soda, preparation method and application | |
| CN108570554B (en) | Adhesive, preparation method and application thereof | |
| CN101961642B (en) | Method for preparing organic pollutant adsorbent for papermaking wastewater | |
| CN105858659A (en) | Peanut shell activated carbon capable of adsorbing formaldehyde and preparation method thereof | |
| CN105749866B (en) | A kind of composite desulfurization powder and its application | |
| CN104841393A (en) | Adsorption filtering agent capable of efficiently adsorbing hydrogen sulfide and preparation method thereof | |
| CN107138059A (en) | A kind of fume treatment auxiliary dedusting film and preparation method | |
| CN110683542A (en) | Preparation method of activated carbon | |
| CN105688849B (en) | A kind of multi-functional desulphurization denitration environmental protection preparation and preparation method thereof | |
| CN104649596A (en) | Method for preparing high-activity lime by calcining limestone chips with circulating fluidized bed | |
| CN110607436B (en) | Method for improving sinter yield | |
| CN114917734A (en) | Dry-process curing desulfurizer and preparation method thereof | |
| CN107628619A (en) | A kind of preparation method of the rich nitrogen active sludge carbon of adulterated food leftover bits and pieces | |
| CN114452791B (en) | Deacidifying method for gas containing sulfur dioxide | |
| CN112403529A (en) | Solid desulfurization and denitrification agent | |
| CN115945058B (en) | Calcium hydroxide strip desulfurizing agent and preparation method thereof | |
| CN114452807B (en) | Dry denitration agent and preparation method thereof | |
| CN106315595B (en) | A kind of atlapulgite and preparation method thereof | |
| CN105363339A (en) | Waste gas treatment chimney | |
| CN108786865A (en) | A kind of catalyst and preparation method thereof for flue gas demercuration | |
| CN104190222A (en) | Waste gas treatment method and equipment used for harmless treatment of household garbage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220506 |
|
| RJ01 | Rejection of invention patent application after publication |