CN112892190B - Chemical deodorant and preparation method thereof - Google Patents
Chemical deodorant and preparation method thereof Download PDFInfo
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- CN112892190B CN112892190B CN202110107856.9A CN202110107856A CN112892190B CN 112892190 B CN112892190 B CN 112892190B CN 202110107856 A CN202110107856 A CN 202110107856A CN 112892190 B CN112892190 B CN 112892190B
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- 239000000126 substance Substances 0.000 title claims abstract description 33
- 239000002781 deodorant agent Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000004332 deodorization Methods 0.000 claims abstract description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 31
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 claims description 13
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000002736 nonionic surfactant Substances 0.000 claims description 8
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims description 8
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims description 8
- 235000012141 vanillin Nutrition 0.000 claims description 8
- CANRESZKMUPMAE-UHFFFAOYSA-L Zinc lactate Chemical compound [Zn+2].CC(O)C([O-])=O.CC(O)C([O-])=O CANRESZKMUPMAE-UHFFFAOYSA-L 0.000 claims description 7
- 229940050168 zinc lactate Drugs 0.000 claims description 7
- 235000000193 zinc lactate Nutrition 0.000 claims description 7
- 239000011576 zinc lactate Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 claims description 4
- 239000012425 OXONE® Substances 0.000 claims 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 abstract description 13
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 11
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 239000002905 metal composite material Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000003573 thiols Chemical class 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005935 nucleophilic addition reaction Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 2
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 2
- 229920000053 polysorbate 80 Polymers 0.000 description 2
- 229940068968 polysorbate 80 Drugs 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 235000006693 Cassia laevigata Nutrition 0.000 description 1
- 241000522641 Senna Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229940124513 senna glycoside Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- 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
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/306—Organic sulfur compounds, e.g. mercaptans
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention belongs to the field of deodorizers, and particularly relates to a chemical deodorizer and a preparation method thereof. The specific technical scheme is that a novel composite polar molecule with a deodorization effect is provided, and a novel composite chemical deodorant is further provided. The chemical deodorant can efficiently treat odor, especially hydrogen sulfide and mercaptan odor, and has the advantages of low environmental pollution and environmental friendliness.
Description
Technical Field
The invention belongs to the field of deodorizers, and particularly relates to a chemical deodorizer and a preparation method thereof.
Background
With the advance of urban and rural integration and industrialization process, people's life is improved increasingly, and simultaneously, the emission of industrial waste gas and a large amount of malodorous gas generated by domestic garbage treatment become problems which need to be paid attention gradually. Malodorous gases can cause serious harm to the atmosphere and to the human body, and the harm is persistent.
In recent years, china has made great progress in malodorous gas treatment, and various types of deodorants have been developed. However, the malodorous gases are complex in composition and difficult to treat, wherein the removal of the thiol component is a great difficulty. It is difficult for the conventional chemical deodorizing agent to effectively absorb hydrogen sulfide and thiol substances, resulting in a decrease in the overall deodorizing efficiency. Therefore, a deodorant capable of effectively treating malodorous gases containing hydrogen sulfide and thiol substances is needed.
Disclosure of Invention
The invention aims to provide a chemical deodorant which is low in cost, high in deodorization efficiency, small in dosage and environment-friendly and a preparation method thereof.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a composite polar molecule having the chemical formula:
accordingly, the use of the complex polar molecule in deodorization.
Correspondingly, the preparation method of the composite polar molecule is prepared by mixing dimethyl sulfoxide and NHD according to the molar ratio of 2:1.
Correspondingly, the chemical deodorant comprises the following components in formula: aprotic highly polar substance, NHD, lauryl acrylate.
Preferably, the aprotic highly polar substance is dimethyl sulfoxide.
Preferably, the formulation further comprises: nonionic surfactant, vanillin, zinc lactate and potassium metal composite salt.
Preferably, the formula comprises the following components in percentage by mass: 5-10% of dimethyl sulfoxide, 10-20% of nonionic surfactant, 1-5% of vanillin, 15-20% of zinc lactate, 2-6% of potassium metal composite salt, 5-10% of NHD, 15-25% of lauryl acrylate and the balance of water.
The invention has the following beneficial effects: the invention provides a brand-new compound chemical deodorant. The zinc lactate component mainly acts with hydrogen sulfide molecules in the actual deodorization process to generate small particles which are difficult to decompose and precipitate ZnS, so that high-concentration hydrogen sulfide in malodorous gas can be effectively removed, and the main reaction equation is as follows: zn 2+ +H 2 S＝2H + + ZnS (solid).
The advantages of nonionic surfactants in deodorants are: the deodorant can not generate a large amount of ions to pollute the environment and the deodorant, and can effectively wrap malodorous gas molecules to make the malodorous gas molecules difficult to release.
The main functions of the potassium metal composite salt are as follows: by its own strong oxidizing property, an oxidative decomposition of mercaptans under ZnS conditions, produces S which is difficult to regenerate 2- 。
Vanillin can emit a masking fragrance. In addition, the vanillin molecules can perform intramolecular addition reaction with hydrogen sulfide, mercaptan and ammonia gas molecules, so that malodorous gas is efficiently removed, products are easily degraded, and the environment is not polluted.
For the important component in the deodorant, dimethyl sulfoxide has the following effects on mercaptan: the S = O polar effect and the mercaptan molecule form strong dispersion force and electrostatic force. The combination is a physical combination, and the structure is stable and difficult to regenerate. Thereby realizing the effect of treating the mercaptan.
Lauryl acrylate molecules can react with hydrogen sulfide, ammonia gas and mercaptan through 1,4 nucleophilic addition reaction. Meanwhile, hydrogen sulfide, mercaptan and ammonia molecules have electronegativity, and lauryl acrylate has electropositivity, so that the lauryl acrylate molecules can firmly lock malodorous gas molecules through electrostatic acting force, volatilization and regeneration of malodorous gas are greatly reduced, and the removal effect of hydrogen sulfide is more obvious.
NHD has similar structural group to that of mercaptan, oxygen atom in NHD molecule has lone electron pair, and may also react with weakly acidic mercaptan to produce Lewis acid-base reaction, and NHD also has weak polar group capable of physically combining with mercaptan.
However, when the three substances are used for odor control alone, the deodorization efficiency is very low. The inventor discovers for the first time after researching: the chemical deodorant obtained by combining the three substances can greatly improve the removal efficiency of malodorous gases. The research mechanism is as follows: in the case of prolonged contact between dimethyl sulfoxide and NHD molecules, a relatively stable complex polar molecule is formed due to the special intermolecular forces, and the molecular diagram is shown in FIG. 1. In fig. 1, the broken line indicates intermolecular forces.
The existence of the composite polar molecules can perform electrostatic attraction and physical wrapping on malodorous gas molecules from various angles, thereby achieving the effect of efficiently absorbing malodorous gas macroscopically. Since the complex polar molecule is generally composed of 2 molecules of dimethylsulfoxide and 1 molecule of NHD, it is preferable that dimethylsulfoxide and NHD are also mixed at a molar ratio of 2:1 in the production. After the obtained composite polar molecules are combined with the malodorous gas molecules, the overall energy is the lowest, so that the malodorous gas molecules can be better geographically fixed and are difficult to analyze. Since the molar mass difference between dimethyl sulfoxide and NHD is not large, in practice, the molar ratio can be reduced to 2:1 for convenient operation.
In addition, when dimethyl sulfoxide and NHD exist simultaneously, lauryl acrylate can not directly react with the two substances, but the existence of 2 substances can greatly improve the molecular polarity of lauryl acrylate. This molecular polarity is represented by a dipole moment μ = qxd. The presence of dimethyl sulfoxide and NHD increases the dipole length q of lauryl acrylate by 1.03-1.06 times, so that the dipole moment mu is increased and the molecular polarity is increased. Therefore, when the lauryl acrylate acts with malodorous gas, not only the 1,4 nucleophilic addition reaction is generated, but also intermolecular dispersion force action is further generated, thereby further improving the processing efficiency of mercaptan.
Drawings
FIG. 1 is a schematic diagram of a complex polar molecule generated from dimethyl sulfoxide and NHD.
Detailed Description
The invention provides a compound chemical deodorant, which comprises the following components in percentage by weight: aprotic highly polar substances, nonionic surfactants (e.g., polysorbate 80), vanillin, zinc lactate, potassium metal complex salts (e.g., potassium hydrogen peroxymonosulfate complex salts), NHD (polyethylene glycol dimethyl ether), water, lauryl acrylate.
The deodorant is prepared by mixing the components at normal temperature and normal pressure, and storing at normal temperature. Do not sit in an extremely dry or extremely humid environment.
Wherein, the aprotic highly polar substance is preferably dimethyl sulfoxide.
The preferable scheme is as follows: according to the mass ratio, the formula comprises 5-10% of dimethyl sulfoxide, 10-20% of non-ionic surfactant, 1-5% of vanillin, 15-20% of zinc lactate, 2-6% of potassium metal composite salt, 5-10% of NHD, 15-25% of lauryl acrylate and the balance of water.
The technical solutions in the embodiments of the present invention are clearly and completely described below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to be exhaustive or exhaustive. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
Example (b): deodorant effect display
1. 13 groups of compound chemical deodorant are prepared. And deionized water was set as a blank control group, and a common chemical deodorant (manufacturer: suzhou Senna environmental protection science and technology Co., ltd.; product number: ecala) was set as a positive control group.
The specific formula of each group of compound chemical deodorant is shown in table 1. The numbers in table 1 refer to the mass fraction of the component in the formulation, with the balance being water. In table 1, polysorbate 80 was used in combination as the nonionic surfactant, and potassium hydrogen peroxymonosulfate was used in combination as the potassium metal complex salt.
Table 1 formula comparison table of each group of composite chemical deodorant
2. The standard gas to be used for the experiment was prepared. Ammonia gas: the mass concentration is 57.0mg/m 3 Hydrogen sulfide: mass concentration83.0mg/m 3 Methyl mercaptan: the mass concentration is 43.0mg/m 3 A glass reactor having a volume of 1.5L was additionally prepared. Using nitrogen gas N 2 The whole glass reactor was subjected to air replacement work.
After the gas replacement is finished, a liquid outlet of the deodorization box and the gas phase sampling port are closed, an air inlet valve of the glass reactor is opened, an air outlet valve of the standard gas steel cylinder is slowly opened, the air inlet flow is controlled by a flowmeter, and the air inlet speed is 0.5L/min. After the gas inlet is finished, the gas in the whole reactor is uniformly mixed, and the gas phase content before reaction is analyzed through the sampling port.
Weighing each group of compound chemical deodorant according to the formula in the group, stirring for 3min, mixing, and injecting into the solution tank respectively. The composite chemical deodorant and the reagents of each control group are respectively conveyed into a deodorization box and react with the characteristic odor in the reactor at the speed of 120mL/min, and the gas-liquid phase reaction lasts for 8 minutes.
After the reaction is finished, the odor after the reaction is treated by a special gas chromatographic column for sulfides and ammonia
The gas was quantitatively analyzed, and the results are shown in Table 2. Deodorization rate = (mass concentration of malodorous gas before reaction-mass concentration of malodorous gas after reaction)/mass concentration of malodorous gas before reaction × 100%.
Table 2 deodorant results for each group of deodorants
The above-described embodiments are only intended to describe the preferred embodiments of the present invention, and not to limit the scope of the present invention, and various modifications, variations, modifications, and substitutions which may be made by those skilled in the art to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (3)
1. A chemical deodorant is characterized in that: the components of the composition comprise: dimethyl sulfoxide, a nonionic surfactant, vanillin, zinc lactate, potassium peroxymonosulfate complex salt, polyethylene glycol dimethyl ether and lauryl acrylate, wherein the chemical structural formula of a compound polar molecule generated by the dimethyl sulfoxide and the polyethylene glycol dimethyl ether is as follows:
2. a chemical deodorant according to claim 1, wherein: the formula comprises the following components in percentage by mass: 5-10% of dimethyl sulfoxide, 10-20% of nonionic surfactant, 1-5% of vanillin, 15-20% of zinc lactate, 2-6% of potassium peroxymonosulfate composite salt, 5-10% of polyethylene glycol dimethyl ether, 15-25% of lauryl acrylate and the balance of water.
3. Use of a chemical deodorant according to claim 1 or 2 for deodorization.
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| 化工企业空气中有害物质测定方法;化工企业空气中有害物质测定方法;《化工企业空气中有害物质测定方法》;化学工业出版社;19830531;第173页 * |
| 绿色日用化学品;汪多仁编著;《绿色日用化学品》;科学技术文献出版社;20070430;第280页 * |
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