CN111518625A - Acidic cleaning agent and preparation method and application thereof - Google Patents
Acidic cleaning agent and preparation method and application thereof Download PDFInfo
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- CN111518625A CN111518625A CN202010446983.7A CN202010446983A CN111518625A CN 111518625 A CN111518625 A CN 111518625A CN 202010446983 A CN202010446983 A CN 202010446983A CN 111518625 A CN111518625 A CN 111518625A
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- cleaning
- cleaning agent
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 55
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000004140 cleaning Methods 0.000 claims abstract description 50
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 25
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002253 acid Substances 0.000 claims abstract description 20
- 239000004471 Glycine Substances 0.000 claims abstract description 13
- 230000000249 desinfective effect Effects 0.000 claims abstract description 11
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- -1 dioctyl glycinate Chemical compound 0.000 claims abstract description 10
- 238000005554 pickling Methods 0.000 claims abstract description 10
- 125000006308 propyl amino group Chemical group 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 28
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 20
- 229910017604 nitric acid Inorganic materials 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 19
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 11
- 230000001502 supplementing effect Effects 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- 229940061605 tetrasodium glutamate diacetate Drugs 0.000 claims description 7
- UZVUJVFQFNHRSY-OUTKXMMCSA-J tetrasodium;(2s)-2-[bis(carboxylatomethyl)amino]pentanedioate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CC[C@@H](C([O-])=O)N(CC([O-])=O)CC([O-])=O UZVUJVFQFNHRSY-OUTKXMMCSA-J 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 229920002197 Sodium polyaspartate Polymers 0.000 claims description 5
- SQKOOOSPGWXVRN-WJXVXWFNSA-N C(=O)(O)CN([C@@H](C)C(=O)O)CC(=O)O.[Na].[Na].[Na] Chemical compound C(=O)(O)CN([C@@H](C)C(=O)O)CC(=O)O.[Na].[Na].[Na] SQKOOOSPGWXVRN-WJXVXWFNSA-N 0.000 claims description 3
- DCCWEYXHEXDZQW-BYPYZUCNSA-N (2s)-2-[bis(carboxymethyl)amino]butanedioic acid Chemical compound OC(=O)C[C@@H](C(O)=O)N(CC(O)=O)CC(O)=O DCCWEYXHEXDZQW-BYPYZUCNSA-N 0.000 claims description 2
- PDIZYYQQWUOPPK-UHFFFAOYSA-N acetic acid;2-(methylamino)acetic acid Chemical compound CC(O)=O.CC(O)=O.CNCC(O)=O PDIZYYQQWUOPPK-UHFFFAOYSA-N 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 238000011010 flushing procedure Methods 0.000 abstract description 11
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 abstract description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000000645 desinfectant Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 239000002671 adjuvant Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000001954 sterilising effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000007865 diluting Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 2
- 235000004279 alanine Nutrition 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 235000018102 proteins Nutrition 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- CIEZZGWIJBXOTE-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]propanoic acid Chemical compound OC(=O)C(C)N(CC(O)=O)CC(O)=O CIEZZGWIJBXOTE-UHFFFAOYSA-N 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 229940120146 EDTMP Drugs 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 210000004666 bacterial spore Anatomy 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 210000004215 spore Anatomy 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3719—Polyamides or polyimides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides an acidic cleaning agent, which comprises the following preparation raw materials in percentage by mass: 15-20% of cleaning component, 22-30% of disinfecting component, 2-5% of adjuvant and 45-61% of water, the cleaning component is acidic, and the disinfecting component contains citric acid and at least one of alkyl propylamino glycine and dioctyl glycinate. The acid cleaning agent is used for pickling the pipeline, so that cleaning and disinfection can be realized, an independent peracetic acid disinfection process is not needed, a primary disinfection and flushing process is omitted, and the using amount of a disinfectant and the water consumption are saved; the realization process is simple, and the whole cleaning and disinfecting time is shortened. And the product is a phosphorus-free formula, so that the problem of phosphorus exceeding caused by wastewater discharge is avoided, and the problem of environmental protection pressure caused by phosphorus discharge of enterprises is solved. The invention also provides a preparation method and application of the acidic cleaning agent.
Description
Technical Field
The invention relates to the technical field of chemical cleaning agents, in particular to an acidic cleaning agent and a preparation method and application thereof.
Background
Food safety is a common concern, and pipeline cleaning and disinfection in the beverage processing industry are key points for controlling product microorganisms. At present, the beverage sterile processing equipment is mainly cleaned and disinfected independently by a CIP cleaning system, the used cleaning agent is mainly a composite acid-base cleaning agent, and the used disinfectant is peracetic acid. At present, most beverage processing plants adopt a seven-step method for cleaning and disinfection, namely water flushing (water flushing), alkali washing, water flushing, acid washing, water flushing, disinfection and water flushing. In the first step, water-soluble dirt and large dirt are taken away in the water flushing process; secondly, removing organic dirt such as fat, protein and the like in an alkali washing process, wherein the washing temperature is more than 80 ℃; thirdly, the alkaline cleaning agent in the pipeline is taken away by water flushing; fourthly, removing some inorganic dirt in the acid washing process, wherein the washing temperature is more than 80 ℃; fifthly, carrying out water flushing to take away the acidic cleaning agent in the pipeline; sixthly, sterilizing the pipeline by adopting peracetic acid; and the seventh step, adopting sterile water to flush the pipeline.
Chinese patent CN106479705A discloses a CIP acidic cleaning agent for food production line, according to the embodiment of which, the effective acid (calculated by nitric acid) is less than 40%, wherein the acid for cleaning comprises nitric acid and phosphoric acid, and is compounded with surfactant, corrosion inhibitor and the like. Patent CN110735144A discloses an acidic cleaning agent for pipelines of food factories, which mainly comprises organic acid, inorganic acid and corrosion inhibitor, wherein nitric acid is used as a main component for cleaning. Therefore, both patents only adopt acid washing and cleaning, and the disinfection part needs to be additionally processed, so that the process is complex, the water quantity of the disinfection part is wasted, the cleaning time is too long, and the phosphoric acid in the formula can cause the phosphorus emission of sewage to exceed the standard.
Therefore, it is very necessary to develop an acidic cleaning agent with disinfection function, which can perform cleaning and disinfection simultaneously, avoid separate disinfection process, realize simple process, save water consumption for cleaning and disinfection, and save time for cleaning pipelines.
Content of application
One of the purposes of the invention is to provide an acidic cleaning agent which has a disinfection function, can realize both cleaning and disinfection of pipelines in an acid washing process, does not need an independent peroxyacetic acid disinfection process, and has the advantages of simple realization process, water consumption for cleaning and disinfection and pipeline cleaning time saving.
In order to achieve the aim, the invention provides an acidic cleaning agent which comprises the following preparation raw materials in percentage by mass:
15% -20% of cleaning component;
22% -30% of a disinfecting component;
2% -5% of an auxiliary agent; and
45 to 61 percent of water.
Wherein the cleaning component is acidic, and the disinfecting component comprises citric acid and at least one of alkyl propyl amino glycine and dioctyl glycinate. Further, the content of the sterilizing component may be 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%.
Compared with the prior art, the acidic cleaning agent provided by the invention has the advantages that the cleaning component is acidic, and inorganic dirt and rust in the pipeline after alkaline cleaning are removed by the cleaning component. The citric acid has a cleaning effect at normal temperature, but the compound of the citric acid and the alkyl propylamino glycine, the citric acid and the dioctyl glycinate or the citric acid and the alkyl propylamino glycine and the dioctyl glycinate can effectively kill bacterial spores and achieve high-level disinfection at 80 ℃ in the acid pickling process. Therefore, in the pickling process, the pipeline can be cleaned and disinfected, an independent peracetic acid disinfection process is not needed, a primary disinfection and flushing process is omitted, and the using amount of a disinfectant and the using amount of water are greatly saved; the method has the advantages of simple process, shortened cleaning and sterilizing time, and reduced water consumption and energy consumption. In addition, the product is a phosphorus-free formula, so that the problem of phosphorus exceeding caused by wastewater discharge is avoided, and the problem of environmental protection pressure caused by phosphorus discharge of enterprises is solved.
Further, the content of the cleaning component may be 15%, 16%, 17%, 18%, 19%, 20%. The cleaning component is a compound of methanesulfonic acid and nitric acid. The methanesulfonic acid has strong dissolving and cleaning effects on calcium and magnesium insoluble substances; the nitric acid has strong cleaning and removing capacity to the rust. The compatibility proportion can effectively remove inorganic dirt and iron rust in the pipeline after alkaline cleaning.
Further, the mass percentage of the methanesulfonic acid to the nitric acid is not lower than 3:1, and if the concentration of the nitric acid in the system is too high, the nitric acid can react with the methanesulfonic acid and the citric acid due to strong oxidizing property.
Further, the amount of citric acid used in the pickling cleaning agent cannot be less than 20%, and if the content of citric acid is less than 20%, a high level of disinfection effect cannot be achieved.
Further, the mass percentage of the citric acid and the alkyl propyl amino glycine or the dioctyl glycinate is not lower than 10: 1.
Further, the content of water may be 45%, 50%, 55%, 61%. Pure water is used for water separation, so that impurity pollution is avoided.
Further, the content of the auxiliary agent can be 2%, 3%, 4% and 5%; the auxiliary agent is at least one of tetrasodium glutamate diacetate, trisodium N, N-dicarboxymethylalanine, sodium polyaspartate, methylglycine diacetate and tetrasodium aspartate diacetate. The carboxylic acid branched chain in the assistant is in negative charge in water, so that dirt ions accumulate equivalent charge, the dispersion process is facilitated, the function of dispersion and scale inhibition is realized while the chelating effect is realized, and the dirt is prevented from being redeposited. The assistant contains hydrophilic and hydrophobic groups to reduce surface tension, and through its hydrophilicity, the water-colloid complex is adsorbed onto the particle to form shell to shield the particle from flocculation caused by electrolyte. Because calcium and other metal ions play a very important role in stabilizing cell walls of a plurality of microorganisms, the addition of the auxiliary agent in the system can chelate and remove the metal ions, so that the cell walls become more permeable, and the activity of the bactericide is greatly improved.
The second object of the present invention is to provide a method for preparing the acidic cleaning agent.
In order to realize the aim, the invention provides a preparation method of an acidic cleaning agent, which comprises the following steps:
and sequentially adding the disinfection component, the cleaning component and the auxiliary agent into water, stirring and dissolving uniformly, and supplementing the residual water to obtain the acid cleaning agent.
The invention also aims to provide an application of the acidic cleaning agent in cleaning and disinfecting of an object to be cleaned, which comprises the following steps:
(1) and (3) pickling the to-be-cleaned piece by adopting the acidic cleaning agent, wherein the pickling temperature is over 80 ℃.
Further, the specific steps may include:
(1) washing the piece to be cleaned with water;
(2) alkali washing, wherein the alkali washing temperature is more than 80 ℃;
(3) washing with water;
(4) acid cleaning is carried out by adopting an acid cleaning agent, and the acid cleaning temperature is more than 80 ℃;
(5) and (5) washing with water.
Wherein, the piece to be cleaned can be, but is not limited to, a pipeline.
Firstly, water-soluble dirt and large dirt are taken away in a water washing process; secondly, an alkaline cleaning agent is adopted to carry out an alkaline cleaning process to remove organic dirt such as fat, protein and the like, wherein the temperature of the alkaline cleaning is more than 80 ℃; thirdly, adopting water to flush the alkaline cleaning agent in the pipeline; and the fourth step of pickling with the acidic cleaning agent at the temperature of over 80 ℃ can clean and disinfect the pipeline, and the fifth step of flushing with water takes away the acidic cleaning agent in the pipeline. The method has the advantages of simple process, water consumption for cleaning and disinfection and pipeline cleaning time saving.
Detailed Description
The acidic cleaning agent of the present invention, its preparation method and the method for cleaning and disinfecting a pipe will be described in detail with reference to the following examples, all of which are commercially available.
Example 1
Adding 20g of citric acid, 2g of alkyl propylamino glycine, 15g of methanesulfonic acid, 5g of nitric acid and 3g of tetrasodium glutamate diacetate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to prepare the acidic cleaning agent.
Example 2
Adding 20g of citric acid, 2g of alkyl alanine glycine, 15g of methanesulfonic acid, 5g of nitric acid, 3g of tetrasodium glutamate diacetate and 2g of sodium polyaspartate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to prepare the acidic cleaning agent.
Example 3
Adding 25g of citric acid, 2g of dioctyl glycinate, 12g of methanesulfonic acid, 3g of nitric acid, 2g of N, N-dicarboxymethylalanine trisodium and 2g of sodium polyaspartate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to obtain the acidic cleaning agent.
Example 4
Adding 28g of citric acid, 1g of dioctyl glycinate, 1g of alkyl alanine glycine, 15g of methanesulfonic acid, 4g of nitric acid, 2g of methyl glycine diacetic acid and 2g of sodium polyaspartate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to prepare the acidic cleaning agent.
Comparative example 1
Adding 3g of ethylenediamine tetramethylene phosphonic acid, nitric acid and phosphoric acid into water, stirring and dissolving uniformly, and supplementing the rest water. The effective acid (calculated by nitric acid) is more than or equal to 45 percent, and the acidic cleaning agent is prepared.
Comparative example 2
Adding 20g of citric acid, 15g of methanesulfonic acid, 5g of nitric acid and 3g of tetrasodium glutamate diacetate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to prepare the acidic cleaning agent.
Comparative example 3
Adding 2g of alkyl propylamine glycine, 15g of methanesulfonic acid, 5g of nitric acid and 3g of tetrasodium glutamate diacetate into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to prepare the acidic cleaning agent.
Comparative example 4
Adding 20g of citric acid, 2g of alkyl propylamino glycine, 15g of methanesulfonic acid and 5g of nitric acid into water in sequence, stirring and dissolving uniformly, and supplementing the rest of water to obtain the acid cleaning agent.
Comparative example 5
And sequentially adding 20g of citric acid, 15g of methanesulfonic acid and 5g of nitric acid into water, stirring and dissolving uniformly, and supplementing the balance of water to obtain the acidic cleaning agent.
The acid cleaning agents prepared in examples 1 to 4 and comparative example 1 were subjected to detergency tests, and the test results are shown in table 1.
The detergency test was carried out according to the method of acidic cleaners for food tools and industrial equipment (QB/T4313-2012). The product was diluted 20-fold for assay.
TABLE 1 detergency test results
| Sample (I) | Concentration of use | Decontamination rate% |
| Example 1 | Diluting by 20 times | 99.01 |
| Example 2 | Diluting by 20 times | 99.23 |
| Example 3 | Diluting by 20 times | 99.31 |
| Example 4 | Diluting by 20 times | 99.47 |
| Comparative example 1 | Diluting by 20 times | 99.17 |
As can be seen from the experimental data in Table 1, the examples and the conventional CIP acidic cleaning agent have strong decontamination efficiency on inorganic dirt.
The acidic cleaning agents prepared in examples 1 to 4 and comparative examples 2 to 5 were subjected to the sterilization effect test, and the test results are shown in table 2.
The sterilization effect experiment is carried out according to the method of the technical Specification for disinfection (2002 edition). The product was diluted 20-fold for assay.
TABLE 2 results of the bactericidal effect experiment
As can be seen from the experimental data in Table 2, the acid cleaning agents of examples 1-4 exhibited > 99.999% kill of Bacillus subtilis var niger spores, achieving high levels of disinfection. The disinfection effect of the acidic cleaning agent in the comparative examples 2 to 5 is poorer than that of the examples 1 to 4, which shows that the tetrasodium glutamate diacetate has a synergistic effect on the cleaning and disinfection of the acidic cleaning agent. The citric acid and at least one of the alkyl propylamino glycine and the dioctyl glycinate are compounded to have a synergistic effect, so that the high-efficiency sterilization effect is realized, the cleaning and the disinfection are simultaneously carried out, and the water consumption and the energy consumption are saved.
Finally, it should be noted that the above embodiments are only for technical solution of the present invention and not for limitation of the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, the present invention is not limited to the above disclosed embodiments, but should cover various modifications, equivalent combinations, made according to the essence of the present invention.
Claims (10)
1. The acidic cleaning agent is characterized by comprising the following preparation raw materials in percentage by mass:
15% -20% of cleaning component;
22% -30% of a disinfecting component;
2% -5% of an auxiliary agent; and
45 to 61 percent of water,
wherein the cleaning component is acidic, and the disinfecting component comprises citric acid and at least one of alkyl propyl amino glycine and dioctyl glycinate.
2. An acidic cleaning formulation according to claim 1 wherein the cleaning component is a combination of methanesulfonic acid and nitric acid.
3. The acidic cleaning agent according to claim 2, wherein the mass percentage of the methanesulfonic acid to the nitric acid is not less than 3: 1.
4. An acidic cleaning formulation according to claim 1, wherein the amount of citric acid used in the pickling formulation is not less than 20%.
5. The acidic cleaning agent according to claim 1, wherein the mass percentage of the citric acid to the alkyl propylamino glycine or the dioctyl glycinate is not less than 10: 1.
6. An acidic cleaning agent according to claim 1 wherein said water is pure water.
7. An acidic cleaning agent according to claim 1, wherein the builder is at least one selected from tetrasodium glutamate diacetate, trisodium N, N-dicarboxymethylalanine, sodium polyaspartate, methylglycine diacetate and tetrasodium aspartate diacetate.
8. A method for preparing an acidic cleaning agent according to any one of claims 1 to 7, wherein the preparation step comprises:
and sequentially adding the disinfection component, the cleaning component and the auxiliary agent into water, stirring and dissolving uniformly, and supplementing the residual water to obtain the acid cleaning agent.
9. Use of an acidic cleaning agent according to any of claims 1 to 7 for cleaning and disinfecting items to be cleaned, comprising the steps of:
(1) and (3) pickling the to-be-cleaned piece by adopting the acidic cleaning agent, wherein the pickling temperature is over 80 ℃.
10. Use of an acidic cleaning agent according to claim 9 for cleaning and disinfecting items to be cleaned, comprising the steps of:
(1) washing the piece to be cleaned with water;
(2) alkali washing, wherein the alkali washing temperature is more than 80 ℃;
(3) washing with water;
(4) acid cleaning is carried out by adopting an acid cleaning agent, and the acid cleaning temperature is more than 80 ℃;
(5) and (5) washing with water.
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