CN102766546A - Application of methylal (by-product produced in process of producing glyphosate by using glycine method) as detergent - Google Patents
Application of methylal (by-product produced in process of producing glyphosate by using glycine method) as detergent Download PDFInfo
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- CN102766546A CN102766546A CN2012102437428A CN201210243742A CN102766546A CN 102766546 A CN102766546 A CN 102766546A CN 2012102437428 A CN2012102437428 A CN 2012102437428A CN 201210243742 A CN201210243742 A CN 201210243742A CN 102766546 A CN102766546 A CN 102766546A
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Abstract
The invention relates to an application of methylal (a by-product produced in the process of producing glyphosate by using a glycine method) as a detergent, which concretely includes the application of methylal used as a chemical cleaning agent for equipment, engines and internal-combustion engines in the petroleum industry, the ethylene industry, the aromatic industry and the organic material industry. The cleaning effect and cleaning mode of methylal are superior to those of conventional cleaning solvents, and the methylal is economic and environmental-friendly.
Description
Technical field
The present invention relates to glycine method and produce the purposes that the by product methylal of Glyphosate 62 IPA Salt is used as clean-out system.
Background technology
Glyphosate 62 IPA Salt is a kind of broad spectrum organic phosphorus weedicide, is the interior living nonselective herbicide of inhaling, conduct, go out behind a kind of bud, has good biological nature, is that other kind weedicide can't be substituted at present.At present China to produce the main flow technology of Glyphosate 62 IPA Salt be glycine method (dialkyl phosphite method), be to be starting raw material with the glycocoll, with Paraformaldehyde 96, dimethylphosphite through addition, condensation, hydrolysis and Glyphosate 62 IPA Salt.Solvent methanol is separated in the collecting process at Paraformaldehyde 96, can generate methylal, and the mother liquor concentration technology reclaims in the process of methyl alcohol, and Glyphosate 62 IPA Salt per ton is recyclable about 0.45 ton of methylal simultaneously.Methylal is as the glyphosate production by-product, and its amount is very considerable, and at present, manufacturer sells this by-product as general merchandise.Methylal content only is used for paint and makes occasions few in number such as solvent about 85%, like the industry that will be used to have relatively high expectations, rectification process will be arranged then, further improves content.
Methylal is colourless transparent liquid, and the smell of similar chloroform is arranged, and boiling point is low, has good solvability, good with the water dissolubility.It is the novel solvent that use is recommended by State Environmental Protection Administration.Concrete physical and chemical parameter is following: molecular formula CH
2(OCH
3)
2, 42.3 ℃ of molecular weight 76.09 boiling points, flash-point-17.8 ℃, density d 15/15.0.866:d20/20.0.861,237 ℃ naturally, fusing point-104.8 ℃, more stable to alkali, when heating, resolve into formaldehyde and methyl alcohol easily with Hydrogen chloride.Miscible with ether, propyl alcohol, ketone etc.; Ability dissolving resin and oils, dissolving power is stronger than ether, acetone; Can dissolve the high soluble cotton of nitrogen content with the azeotropic mixture of methyl alcohol; In water, dissolve 32.3% (WT) in the time of 16 ℃; Water dissolves 4.3% (WT) in methylal.
At present; More than 300 ten thousand tons of Glyphosate 62 IPA Salt by-product methylal whole nation production capacities; And actual output is at more than 100 ten thousand tons, and seriously drug on the market, and each manufacturer sells and the methylal that comes into the market (does not contain Glyphosate 62 IPA Salt by-product methylal; Because of by-product content is low, only is fit to general paint and makes solvent and use) only be confined to the following aspects at present:
In the insecticidal aerosol preparation, as tetramethrin, permethrin, efficient chlorine hydrogen chrysanthemum fat, decamethrin comparison 4-Chloro-etc. deodorized kerosine and water base in the solubility promoter of indissoluble composition;
⑵ the application in leather polish, automobile polish formulation, general a spot of solid wax, little article paraffin, beeswax, the POLISHING WAX-103s etc. of adopting of the prescription of leather polish are behind the use methylal; Can improve solvent nature; Improve the quality, and volatilization is fast, easy to use.The water soluble characteristic that in the automobile polish formulation, also has kindred circumstances, particularly methylal cuts much ice to the stability that improves emulsifying wax.
⑶ the application in agent prescription with fresh air, the essence in the air freshener of selling in the market uses ethanol as solvent usually, reaches with the equally matched of third butane and dissolves each other, and use more ethanol, influences the smell of freshener.After adopting methylal, the solubility property of essence is improved greatly, reduce consumption of ethanol, improve the fragrance of freshener, reduce the discharging of VOCS.
⑷ macromolecule polyacrylic acid lipid solid material is adopted in the application in the colored ribbon prescription in the colored ribbon prescription, F11 makes solvent in the original formulation.Along with the forbidding in fluorine Lyons, adopt methylal to make solvent, can reach the purpose that solubility property is good, volatility is fast.
⑸ the application in electronics sanitising agent prescription.Adopt F11 and F13 to make main function in producing at present mostly and want raw material,, also will be substituted by methylal along with the forbidding in fluorine Lyons.
⑹ methylal can be used for fat, wax, nitrocellulose, natural resin, rosin, Yatall MA, most of synthetic resins, PS, vinyl acetate polymer and multipolymer, polyester, propenoate, propenoate, versamid 900, epoxy resin, chlorinated rubber etc. are made quantitatively dissolving usefulness partially.
⑺ mix a small amount of methylal with acetate, ester or ketone can make solvent obtain synergism; These characteristics of methylal are particularly suitable for as paint and lacquer formulation it; Additive in glue and cakingagent, printing ink and the various aerosol products makes product obtain good homogeneity.
Summary of the invention
Can not judge a kind of quality of clean-out system merely according to cleaning performance, for example clean-out system such as CFC-113 though cleaning performance is pretty good, has destruction to atmospheric ozone layer, and is disabled.Glyphosate 62 IPA Salt by-product methylal is recommended as feature of environmental protection solvent by NEPA, and still nobody studies its cleaning effect.
The object of the present invention is to provide glycine method to produce the new purposes that is used as chemical of Glyphosate 62 IPA Salt by-product methylal, cleaning effect is good, low toxicity, environmental protection.
Cleaning applications is following:
Can be used for petroleum chemical industry, ethylene industry, the matting of aromatic hydrocarbons industry and organic raw material industry equipment.
Burnt dirt in the ethylene unit mainly concentrates on pyrolyzer, separation column, steam generator, depropenizer, debutenizer and the device that boils.Because the coking fouling causes wall resistance to increase, thermo-efficiency reduces, and power consumption raises, and simultaneously, the dirt layer diminishes the equipment internal diameter, and Flow of Goods and Materials pressure raises, have a strong impact on to produce and safety, thereby, must regularly carry out matting.As clean-out system, can get gratifying cleaning performance with Glyphosate 62 IPA Salt by-product methylal.
Ethylene unit dilution steam generation producer stops up easily, and its cleaning technique perplexs a great problem of domestic ethylene always.The artificial Cleaning Technology by High Pressure of general at present employing, not only annual cleaning cost is high, and construction risk property is big, and environmental pollution is arranged again.Therefore, substitute high pressure cleaning with Glyphosate 62 IPA Salt by-product methylal, cleaning effect is good.
Or be used for motor car engine, oil engine and clean, use oil engine as the automobile of mover, locomotive etc., in use, because oil fuel, lubricating oil receives thermooxidizing at high-temperature area, and polymerization often forms the glued membrane that picture coats with lacquer, and is tightly adhered to the metallic surface.Can seriously reduce the mover heat transfer efficiency.Therefore, must carry out matting.Methylal can be brought into play synergy separately or as using with nonionogenic tenside, and the snaking ability is improved more.
The applicant adopts methanol carbonyl base metallization processes to produce acetic acid, and there is coking phenomenon in electro detarrer one group equipment that use in its workshop, gas making workshop, and its tar dirt is brown, thickness.Conventional cleaning, often effect is undesirable, and inner pipe wall, plate washer, wire spiral and suspension ring etc. are difficult to clean up.Use Glyphosate 62 IPA Salt by-product methylal to be clean-out system, reached and cleaned goodish effect.Electro detarrer after the cleaning, tar disappears, and exposes the metal true qualities fully, and is very clean, bright.
The applicant adopted sieve porcelain blower fan of gas making operation, and was inner because the factors such as impurity of CO raw material form burnt dirt; Outward appearance shady deal brown is gluey under the normal temperature, slightly hard; Heat to 120 ℃ flowability is arranged; Its staple is coal drop matter, carboids, and is mixed with ash and minor amount of oil, acidic group salt etc., and dirt appearance can be dissolved in part alcohol, ether, aromatic hydrocarbon, chlorocarbon kind solvent.Dissolved separate slow, under agitation heat to 80 ℃ quickly dissolving.But adopt Glyphosate 62 IPA Salt by-product methylal to stir, need not heat, can dissolve burnt dirt under the normal temperature, reach the expection cleaning performance.
Or; Be used for the cleaning of steamer, aircraft engine; Carbon deposit on the mover is that fuel oil and combustion products at high temperature decompose and stick above that; The resolvent of beginning fuel oil form lacquer shape film and with the metal mortise, when at high temperature continuing the long period, further decomposed form carbon black.Removing carbon deposit, generally speaking, is to be immersed in engine parts to utilize chemical and the interaction of lacquer shape thing to make it dissolving in the solvent; The auxiliary machinery mode is got solvent brushing as dipping in brush, or is cleaned with ejection of solvent; Lacquer shape thing is removed the result and is destroyed carbon black and melts combine, and carbon black will peel off, with Glyphosate 62 IPA Salt by-product methylal can instead of gasoline, chlorinated hydrocarbon solvents such as kerosene, toluene, zellon, trichloroethane; Cleaning performance is good, and economical and practical.
Airfield runway is used in cleaning.Aircraft when taking off or land, plane tyre and airfield runway because high temperature, at a high speed, part plane tyre rubber surface can remain on the runway, forms the tire vestige of a lot of male and fomale(M&F).Reduced aircraft and runway frictional force, can form hidden danger to aircraft safety, therefore the environmental beauty that influences the drome again, must clean with clean and tidy.
Domestic present clean-out system roughly has compositions such as propylene dichloride, methyl alcohol, YLENE, cyclohexanone; Cleaning performance no matter is still to environment, to the human body secure context; Methylal more can win to be raised, and therefore, has more application value.
Claims (4)
1. the by product methylal of glycine method production Glyphosate 62 IPA Salt is used as the purposes of chemical.
2. the by product methylal of glycine method production Glyphosate 62 IPA Salt is used as the purposes of the chemical of petroleum industry, ethylene industry, aromatic hydrocarbons industry and organic raw material industry equipment.
3. the by product methylal of glycine method production Glyphosate 62 IPA Salt is used as the purposes of the chemical of mover, oil engine.
4. the by product methylal of glycine method production Glyphosate 62 IPA Salt is used as the purposes of airfield runway chemical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102437428A CN102766546A (en) | 2012-07-16 | 2012-07-16 | Application of methylal (by-product produced in process of producing glyphosate by using glycine method) as detergent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102437428A CN102766546A (en) | 2012-07-16 | 2012-07-16 | Application of methylal (by-product produced in process of producing glyphosate by using glycine method) as detergent |
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| CN102766546A true CN102766546A (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102437428A Pending CN102766546A (en) | 2012-07-16 | 2012-07-16 | Application of methylal (by-product produced in process of producing glyphosate by using glycine method) as detergent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263546A (en) * | 2014-10-02 | 2015-01-07 | 济南瑞东实业有限公司 | Efficient pollution-free industrial water-based full cleaning agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061798A (en) * | 1990-11-24 | 1992-06-10 | 台湾塑胶工业股份有限公司 | Mixed solvent for cleansing |
| CN101082015A (en) * | 2006-05-29 | 2007-12-05 | 天津科林斯商贸有限公司 | Novel ultrasonic cleaning agent |
| CN102320940A (en) * | 2011-06-20 | 2012-01-18 | 印海平 | Method for purifying methylal |
-
2012
- 2012-07-16 CN CN2012102437428A patent/CN102766546A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061798A (en) * | 1990-11-24 | 1992-06-10 | 台湾塑胶工业股份有限公司 | Mixed solvent for cleansing |
| CN101082015A (en) * | 2006-05-29 | 2007-12-05 | 天津科林斯商贸有限公司 | Novel ultrasonic cleaning agent |
| CN102320940A (en) * | 2011-06-20 | 2012-01-18 | 印海平 | Method for purifying methylal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263546A (en) * | 2014-10-02 | 2015-01-07 | 济南瑞东实业有限公司 | Efficient pollution-free industrial water-based full cleaning agent and preparation method thereof |
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Application publication date: 20121107 |