CN107337689A - A kind of synthetic method of alkyl phosphate monoester - Google Patents

A kind of synthetic method of alkyl phosphate monoester Download PDF

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Publication number
CN107337689A
CN107337689A CN201710568277.8A CN201710568277A CN107337689A CN 107337689 A CN107337689 A CN 107337689A CN 201710568277 A CN201710568277 A CN 201710568277A CN 107337689 A CN107337689 A CN 107337689A
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alkyl phosphate
synthetic method
phosphoric acid
phosphate monoester
monoester
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CN107337689B (en
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张广良
赵永红
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China Daily Chemical Industry Research Institute
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China Daily Chemical Industry Research Institute
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/06Phosphorus compounds without P—C bonds
    • C07F9/08Esters of oxyacids of phosphorus
    • C07F9/09Esters of phosphoric acids
    • C07F9/11Esters of phosphoric acids with hydroxyalkyl compounds without further substituents on alkyl

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A kind of synthetic method of alkyl phosphate monoester is with phosphoric acid and P2O5Mixture is phosphorylation agent, using fatty alcohol or aliphatic ether as raw material, uniformly after mixing, reacts 1 15h under the conditions of the 0.08MPa of vacuum 0.02,70 120 DEG C of reaction temperature, the 700r/min of speed of agitator 200, obtains product.The present invention has the advantages of monoesters selectivity is high, monoester content is high, environment-friendly.

Description

A kind of synthetic method of alkyl phosphate monoester
Technical field
The present invention relates to a kind of synthetic method of alkyl phosphate monoester.
Background technology
In recent years, phosphate ester surfactant is because it has less toxic, non-stimulated and significant biodegradable etc. Good performance and be widely used.Alkyl phosphate is as one of phosphate ester surfactant, its solubility, thermostabilization Property, resistance to hard water, acid and alkali-resistance, resistance to inorganic salts, high temperature resistant and the performance such as antistatic are superior to general surfactant, thus widely Applied to preparation medium, emulsifying agent, antistatic additive, lubricant etc..
Alkyl phosphate is including monoesters, dibasic acid esters and three esters, alkyl phosphate monoester and its salt with having performance temperature compared with other With, toxicity is low, excitant is small, biological degradability is good the advantages that, while also have wetting, clean, solubilising, emulsification, lubrication etc. it is more Kind function, thus it is widely used in the fields such as daily use chemicals, weaving, industry cleaning link.But the phosphorus of domestic production at present and sale Monoester content is not high in acid esters, and the high content alkyl phosphate monoester overwhelming majority needs import, and commercially available prod is monoesters and dibasic acid esters Mixture.Because the separating difficulty of alkyl phosphate monoester and dibasic acid esters is big, as product purity and monoester content raise, price Sharply increase, raised in addition with the purity of raw material, its cosmetics prepared and personal few washing product security are also higher.Cause This carries out the research of mono phosphoric acid ester esters surface active agent new varieties and new technology, and especially exploitation prepares high-purity alkyl phosphoric acid list Ester and alkyl phosphoric acid dibasic acid esters synthetic technology, to promoting the sound development of China's Surfactant Industry, and meet national economy The needs of all departments' Surfactant are very important.
Phosphate ester surfactant synthesizes in two stages, and the first stage is phosphate synthesis, second stage saponification. From the angle analysis of product quality, synthetic technology is crucial.The A of patent CN 103833785 use P2O5Synthesized for phosphorylation agent Alkyl phosphate, synthetic product are the mixture of single dibasic acid esters, and the content of monoesters is 48-52wt%.Industrially use traditional P2O5Work Monoester content is 35%-65% in skill synthetic phosphoric acid ester, by improving P2O5It is also left 75% that technique adds water to hydrolyze final monoester content The right side, due to containing dibasic acid esters, therefore monoesters poor selectivity in sintetics.The A of patent CN 104804038 use POCl3 as phosphorus Acidizing reagent synthesis of alkyl phosphate, the reactivity is high, and reaction speed is fast, but the low boiling point of raw material POCl3 is easily waved Hair, the accessory substance HCl meeting etching apparatuses of generation, and HCl easily reacts generation RCl accessory substances with ROH, is unfavorable for the generation of monoesters. The A of patent CN 103012469 use phosphoric acid as phosphorylation agent, add water entrainer synthesis of alkyl phosphate, and the technique synthesized Organic solvent toluene, dichloroethanes etc. are added in journey, does not meet the requirement of friendly process.Patent CN 104804038A are described A kind of preparation method of phosphate, it uses hypergravity rotatable reactor, and structure of reactor is complicated, and cost is high, while also to adopt With solvent diluent, wherein solvent diluent is mostly poisonous and hazardous organic solvent, is not suitable for industrialized production;The nineties day For light industry chemistry institute Wangqing County of Jinshi City into waiting using polyphosphoric acids method synthesis dodecylphosphoric acid monoesters, monoester content is high, but by In use polyphosphoric acid technique, waste water great difficulty is brought containing a large amount of phosphoric acid to post processing.Therefore, green syt height contains The alkyl phosphate monoester of amount has realistic meaning and economic value.
The content of the invention
To solve problems of the prior art, it is an object of the invention to provide a kind of monoesters selectivity height, monoesters to contain Amount is high, the synthetic method of environment-friendly alkyl phosphate monoester.
The present invention is with phosphoric acid(Commercially available 85wt%)And P2O5Mixture is phosphorylation agent, with fatty alcohol(Ether)For raw material, By Depressor response one-step synthesis of alkyl phosphate monoester, monoesters selectivity height, monoester content in the product synthesized by the present invention Height, added value is high, can be applied in the high-end skin-protection product such as cosmetics, while present invention process is simple, and reaction condition is gentle, instead Answer speed fast, be a kind of environment-friendly green synthesis method.
To reach above-mentioned purpose, what the present invention was realized in:
With phosphoric acid and P2O5Mixture is phosphorylation agent, using fatty alcohol or aliphatic ether as raw material, uniformly after mixing, in vacuum 1-15h is reacted under the conditions of 0.02-0.08MPa, 70-120 DEG C of reaction temperature, speed of agitator 200-700r/min, obtains product.
The mol ratio of fatty alcohol or aliphatic ether and phosphorylation agent is 1-1.5 in said process:1;
Phosphoric acid and P in said process2O5Mass ratio be 0.5-3:1;Phosphoric acid is commercially available 85wt% phosphoric acid.
The fatty alcohol being related in said process is single carbon chain alcohol and mixed carbon alcohol, and ether is AEO or alkyl One kind in phenol polyethenoxy ether etc..
This technology has advantages below compared with prior art:
1st, with phosphoric acid and P2O5Mixture is phosphorylation agent, is overcome when using phosphoric acid as phosphorylation agent, and phosphatase reaction is lived Property, the problem of conversion ratio is not high, improve monoester content in product.
2nd, with phosphoric acid and P2O5Mixture is phosphorylation agent, is overcome using P2O5For phosphorylation agent when, P2O5Reaction The higher selectivity for causing product to have the shortcomings that dibasic acid esters generation, improving monoesters in product of activity.
3rd, it is only water by the byproduct of reaction, economy is high, is a green synthesis route.
4th, in sintetics alkyl phosphate, monoester content is more than 67wt%, and monoesters can selectively reach 100%.
5th, the reaction condition is gentle, and technique is simple, is adapted to industrialized production.
Embodiment
Embodiment 1:
Weigh phosphoric acid, phosphorus pentoxide, lauryl alcohol be respectively 5.6,11.2,38.4g be well mixed in reactor, setting reaction 110 DEG C of temperature, while suitable speed of agitator, vacuum are controlled, wherein speed of agitator is 450r/min, vacuum 0.05M Pa, 4h is reacted under the above-described reaction conditions.After completion of the reaction, sampling analysis is stand-by.Wherein dodecylphosphoric acid monoester content is 77wt%, monoesters are selectively 100%.Dodecylphosphoric acid monoester content is 92wt% after isolating and purifying.
Embodiment 2:
Weigh phosphoric acid, phosphorus pentoxide, octadecyl alcolol be respectively 9.4,8.4,54.1g be well mixed in reactor, setting reaction 120 DEG C of temperature, while suitable speed of agitator, vacuum are controlled, wherein speed of agitator is 200r/min, vacuum 0.06M Pa, 1h is reacted under the above-described reaction conditions, after completion of the reaction, sampling analysis is stand-by.Wherein Inverse suspension content is 67wt%, monoesters are selectively 100%.Inverse suspension content is 88wt% after isolating and purifying.
Embodiment 3:
Weigh phosphoric acid, phosphorus pentoxide, lauryl alcohol be respectively 14.1,4.7,52.6g be well mixed in reactor, setting reaction 100 DEG C of temperature, while suitable speed of agitator, vacuum are controlled, wherein speed of agitator is 400r/min, vacuum 0.05M Pa, 6h is reacted under the above-described reaction conditions, after completion of the reaction, sampling analysis is stand-by.Wherein dodecylphosphoric acid monoester content is 83.6wt%, monoesters are selectively 100%.Dodecylphosphoric acid monoester content is 94wt% after isolating and purifying.
Embodiment 4:
Weigh phosphoric acid, phosphorus pentoxide, docosanol be respectively 12.2,11,101.9g be well mixed in reactor, setting is anti- 90 DEG C of temperature is answered, while controls suitable speed of agitator, vacuum, wherein speed of agitator is 700r/min, vacuum 0.05M Pa, 15h is reacted under the above-described reaction conditions, after completion of the reaction, sampling analysis is stand-by.Wherein monoester content is 74 wt%, monoesters Selectivity is 100%.Alkyl phosphate monoester content is 88wt% after isolating and purifying.
Embodiment 5:
Weigh phosphoric acid, phosphorus pentoxide, 12,14 mixed carbon alcohol(12, tetradecyl alchohol mass ratio is 3:1)Respectively 9.4,8.4, 45.7g is well mixed in reactor, sets 70 DEG C of reaction temperature, while controls suitable speed of agitator, vacuum, wherein stirring Mix rotating speed is 500r/min, vacuum 0.02MPa, reacts 15h, after completion of the reaction, sampling analysis under the above-described reaction conditions It is stand-by.Wherein alkyl phosphate monoester content is 72 wt%, and monoesters is selectively 100%.Monoester content is 90 after isolating and purifying wt%。
Embodiment 6:
Weigh phosphoric acid, phosphorus pentoxide, AEO9Respectively 22.2,8.4,123.2g in reactor be well mixed, setting reaction 120 DEG C of temperature, while suitable speed of agitator, vacuum are controlled, wherein speed of agitator is 400r/min, vacuum 0.08M Pa, 8h is reacted under the above-described reaction conditions, after completion of the reaction, sampling analysis is stand-by.Wherein AEO9Phosphate monoester content is 74 Wt%, monoesters are selectively 100%.Monoester content is 88wt% after isolating and purifying.

Claims (6)

1. a kind of synthetic method of alkyl phosphate monoester, it is characterised in that comprise the following steps:
With phosphoric acid and P2O5Mixture is phosphorylation agent, using fatty alcohol or aliphatic ether as raw material, uniformly after mixing, in vacuum 1-15h is reacted under the conditions of 0.02-0.08MPa, 70-120 DEG C of reaction temperature, speed of agitator 200-700r/min, obtains product.
2. a kind of synthetic method of alkyl phosphate monoester as claimed in claim 1, it is characterised in that the fatty alcohol or fat The mol ratio of ether and phosphorylation agent is 1-1.5:1.
3. a kind of synthetic method of alkyl phosphate monoester as claimed in claim 1, it is characterised in that phosphoric acid and P2O5Mass ratio For 0.5-3:1.
4. a kind of synthetic method of alkyl phosphate monoester as claimed in claim 1, it is characterised in that phosphoric acid is commercially available 85wt% Phosphoric acid.
5. a kind of synthetic method of alkyl phosphate monoester as claimed in claim 1, it is characterised in that fatty alcohol is single carbon chain alcohol And mixed carbon alcohol.
6. a kind of synthetic method of alkyl phosphate monoester as claimed in claim 1, it is characterised in that aliphatic ether is poly alkyl alcohol Oxygen vinethene or APES.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111574555A (en) * 2020-05-15 2020-08-25 江苏九洲环保技术有限公司 Method for synthesizing fatty alcohol-polyoxyethylene ether phosphating product

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07316170A (en) * 1994-05-24 1995-12-05 Kao Corp Production of phosphoric monoester
CN1158132A (en) * 1994-09-20 1997-08-27 花王株式会社 Process for the preparation of phosphoric monoester
CN1174556A (en) * 1994-12-09 1998-02-25 花王株式会社 Process for prep. of phosophoric monoester
CN1389467A (en) * 2001-05-31 2003-01-08 花王株式会社 Method for preparing phosphate
JP2003128684A (en) * 2001-10-25 2003-05-08 Kao Corp Production method of monophosphate
JP2007326819A (en) * 2006-06-08 2007-12-20 Kao Corp Method for producing phosphoric monoester
CN102911203A (en) * 2012-10-25 2013-02-06 浙江合诚化学有限公司 Preparation method of alkyl phosphate
CN103483375A (en) * 2013-10-09 2014-01-01 广州潮徽化工科技有限公司 High-carbon fatty alcohol phosphate ester emulsifier, and preparation method and application thereof
CN104130284A (en) * 2014-07-03 2014-11-05 江苏理工学院 Preparation method of fluorine-containing phosphoric acid monoester salt

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07316170A (en) * 1994-05-24 1995-12-05 Kao Corp Production of phosphoric monoester
CN1158132A (en) * 1994-09-20 1997-08-27 花王株式会社 Process for the preparation of phosphoric monoester
CN1174556A (en) * 1994-12-09 1998-02-25 花王株式会社 Process for prep. of phosophoric monoester
CN1389467A (en) * 2001-05-31 2003-01-08 花王株式会社 Method for preparing phosphate
JP2003128684A (en) * 2001-10-25 2003-05-08 Kao Corp Production method of monophosphate
JP2007326819A (en) * 2006-06-08 2007-12-20 Kao Corp Method for producing phosphoric monoester
CN102911203A (en) * 2012-10-25 2013-02-06 浙江合诚化学有限公司 Preparation method of alkyl phosphate
CN103483375A (en) * 2013-10-09 2014-01-01 广州潮徽化工科技有限公司 High-carbon fatty alcohol phosphate ester emulsifier, and preparation method and application thereof
CN104130284A (en) * 2014-07-03 2014-11-05 江苏理工学院 Preparation method of fluorine-containing phosphoric acid monoester salt

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111574555A (en) * 2020-05-15 2020-08-25 江苏九洲环保技术有限公司 Method for synthesizing fatty alcohol-polyoxyethylene ether phosphating product

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