CN106145078A - Method for synthesizing neodymium phosphate solution and synthesized neodymium phosphate solution - Google Patents

Method for synthesizing neodymium phosphate solution and synthesized neodymium phosphate solution Download PDF

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CN106145078A
CN106145078A CN201510142593.XA CN201510142593A CN106145078A CN 106145078 A CN106145078 A CN 106145078A CN 201510142593 A CN201510142593 A CN 201510142593A CN 106145078 A CN106145078 A CN 106145078A
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solution
phosphate
metal halide
neodymium
phosphoric acid
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CN106145078B (en
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齐晓梅
张志强
梁英超
李传光
李潇
郭中台
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Petrochina Co Ltd
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Abstract

A method for synthesizing a neodymium phosphate solution and the synthesized neodymium phosphate solution, the method comprises the following steps: preparing a metal halide salt into a saturated metal halide salt aqueous solution; mixing acidic phosphate with an organic solvent to obtain a phosphate solution, wherein the volume ratio of the acidic phosphate to the organic solvent is 1: 2-1: 20; adding neodymium oxide solid powder into a phosphate solution, stirring to obtain a turbid solution, and heating to 20-50 ℃; adding the saturated metal halide salt aqueous solution into the turbid solution, heating and stirring, adding a molecular sieve, reacting for 20-90 minutes at 20-70 ℃, standing and layering after the reaction is finished, separating to obtain an oil phase which is a neodymium phosphate solution, wherein the molar ratio of the metal halide salt to the acidic phosphate ester is controlled to be 1: 5-1: 50. the neodymium phosphate solution contains a small amount of phosphoric acid non-rare earth metal salt, so that the viscosity of the glue solution can be reduced in the polymerization catalysis process of the synthetic rubber, and the production loss is reduced; the molecular weight distribution of the synthetic rubber is widened, and the processability of the rubber is improved.

Description

A kind of method synthesizing neodymium phosphate solution and synthesized neodymium phosphate solution
Technical field
The present invention relates to the synthetic method of a kind of neodymium phosphate solution, particularly relate to a kind of with saturated metal halide Solution is the method for the synthesis neodymium phosphate solution of catalyst, belongs to compou nd synthesis technical field.
Background technology
Neodymium phosphate catalyst combines differently with other components, is aged, can be as olefin polymerization catalysis. Neodymium phosphate for the research work of olefin polymerization catalysis at eighties of last century the seventies it has been reported that phosphorus used Acid neodymium catalyst is solid phosphoric acid neodymium catalyst.
In " rare earth catalyst synthetic rubber collected works " " different coordinating group rare earth compounds gather at isoprene Catalysis activity in conjunction " (Science Press, 1980, ground by Changchun applied chemistry institute of the Chinese Academy of Sciences the 4th Study carefully room) in sketched the preparation method of neodymium phosphate catalyst, its product is solid phosphoric acid neodymium catalyst.This is solid Body catalyst is insoluble in alkane, aromatic solvent, and its preparation method is: make neodymia and hydrochloric acid reaction, preparation The neodymium chloride aqueous solution;Phosphate is mixed with ethanol, adds ammoniacal liquor saponification;Add in sodium phosphate saponification liquor Entering the neodymium chloride aqueous solution, reaction afterproduct is neodymium phosphate (powder or floccule), sedimentation, separation, filtration Obtain solid phosphoric acid neodymium;Solid phosphoric acid neodymium with ethanol wash, sedimentation, separate, filter, in triplicate or with On;Gained solid phosphoric acid neodymium is dried, and makes ethanol volatilize completely.Neodymium phosphate catalyst prepared by the method is Solid, neodymium phosphate dry run is loaded down with trivial details, and production process produces substantial amounts of ethanol aqueous waste solution, it is impossible to be repeated several times Utilizing, product is insoluble in alkane solvent, aromatic hydrocarbons, dissolves in alkane solvent after adding alkyl aluminum, but many groups Divided catalyst ageing process can be subject to bigger restriction.
United States Patent (USP) US6838534, US7157533, US7056998 each provide a kind of neodymium phosphate Preparation method, it is essentially identical with above-mentioned method, is all to use neodymia and hydrochloric acid reaction to prepare neodymium chloride Solution, is then respectively adopted di-(2-ethylhexyl)phosphoric acid ester and acetone, di-(2-ethylhexyl)phosphoric acid Ester and acetone, di-(2-ethylhexyl)phosphoric acid ester and acetone react, and prepare neodymium phosphate solid and urge Agent.
The experimental technique of prior art (publication number CN101778853A) is the invention of Rhodia of France Disclosed technology, but in CN101778853A, mention rare-earth organophosphate solution in organic solvent Preparation method, accelerator used i.e. catalyst is selected from water, nitric acid, hydrochloric acid, acetic acid, formic acid and propionic acid And the rare-earth salts of these acid.In patent CN101778853A, the catalyst used in embodiment 5 is chlorination The neodymium aqueous solution, is rare earth metal halide salt.
Patent CN101778853A discloses the concrete inventory of its method and reaction temperature and time. And patent CN101778853A is not all mentioned the impact on reaction system for the water content.This method prepares Neodymium phosphate solution viscosity is higher, and residual solid content and residual acid comparision contents are high, the neodymium phosphate solution of gained Also need to filter, washing repeatedly, the step such as distillation can be only used for rubber polymerization and uses.
Content of the invention
The preparation method and the obtained neodymium phosphate that it is an object of the invention to provide a kind of neodymium phosphate solution are molten Liquid, single with the neodymium phosphate solution composition solving prepared by art methods, gathering as elastomeric Close the defect that can not effectively reduce gelatin viscosity in catalytic process.
For achieving the above object, the present invention proposes a kind of method synthesizing neodymium phosphate solution, comprises the following steps:
Step 1: metal halide salt is made saturated metal halide saline solution, with described saturated metal halide Saline solution is catalyst;
Step 2: acid phosphoric acid ester and organic solvent are mixed to get phosphate ester solution, described acid phosphoric acid ester Volume ratio with organic solvent is 1:2-1:20, and described organic solvent is linear paraffin or cycloalkane or aromatic hydrocarbons;
Step 3: neodymia pressed powder is joined stirring in phosphate ester solution and obtains turbid solution, and heat To 20-50 DEG C, described neodymia is 1:6 with the mol ratio of described acid phosphoric acid ester;
Step 4: described saturated metal halide saline solution is joined in described turbid solution, heating stirring, Adding molecular sieve, reacting 20-90 minute at 20-70 DEG C, reaction terminates rear static layering, isolated Oil phase, described oil phase is neodymium phosphate solution, the mol ratio control of described metal halide salt and described acid phosphoric acid ester It is made as 1:5-1:50.
Wherein, described metal halide salt is non-rare earth metal halide salt, and described non-rare earth metal halide salt is selected from Nickel chloride, iron chloride, cobalt chloride or titanium chloride, this metallic element has catalytic action to alkene or alkadienes.
Wherein, a small amount of nickel, iron, cobalt, titanium can generate organic phosphate and be present in neodymium phosphate solution, should Nickel, iron, cobalt, the organic phosphate of titanium play the effect in activated centre in the course of the polymerization process, improve product Processed and applied performance.
Wherein, in step 3, described be heated to 20-50 DEG C for turbid solution catalyst addition before preheating temperature Degree, can make reaction accelerate and make reaction more complete.
Wherein, step 4 adds described molecular sieve to remove the water that reaction generates, make catalyst system and catalyzing meet reaction Demanding kinetics.
Wherein, described acid phosphoric acid ester is acid organo phosphates, it is preferred that described acid organo phosphates For (RO)2POOH, R (RO) POOH or R2POOH, described R are alkyl or its isomers of 2-13 carbon, more Goodly, described acid organo phosphates is di-(2-ethylhexyl)phosphoric acid ester, 2-ethylhexyl phosphoric acid 2-second One or more in base hexyl ester and methyl acid phosphate diformazan fat in heptan.
Wherein, described organic solvent is hexane, heptane, one or more in carbon six oil.
Wherein, in described step 1, it is will to carry 0-6 that metal halide salt is made saturated metal halide saline solution Saturated nickel chloride aqueous solution made by the nickel chloride of the individual crystallization water, and described saturated nickel chloride aqueous solution is 20-50 DEG C Saturated nickel chloride aqueous solution.
It is preferred that also include step 5: reaction terminates rear static layering, and lower floor is aqueous metal halogenation salt solution Solution, recycling.
And, for achieving the above object, the present invention also proposes a kind of neodymium phosphate solution, is closed by above-mentioned method Becoming, the chemical formula of described neodymium phosphate is NdD3, D represents acid phosphoric acid ester, and described acid phosphoric acid ester is acidity Organophosphorus ester.This neodymium phosphate solution contains a small amount of Metal organophosphates, described Metal organophosphates Chemical formula is MDn, M represents metal, and D represents acid phosphoric acid ester, and n represents the number of the organophosphorus ester containing Amount, described acid phosphoric acid ester is acid organo phosphates.
Invention effect:
The method of the present invention is during synthesis neodymium phosphate solution, and catalyst choice is non-rare earth metal halogen Changing the saturated solution of salt, a small amount of saturated non-rare earth metal halide salt can react with acid phosphoric acid ester, generation A small amount of non-rare earth metal salt of phosphoric acid, and the non-rare earth metal salt of phosphoric acid has polymerization activity equally, the side of the present invention The neodymium phosphate solution of method synthesis contains the non-rare earth metal salt of a small amount of phosphoric acid, is urging as elastomeric polymerization There is its specific effect during change, be in particular in: during polymerization, reduce gelatin viscosity, subtract Few energy loss;Elastomeric molecular weight distribution is made to broaden, at the premium properties possessing original rare-earth rubber Outside, improve the processing characteristics of rubber.
The especially present invention selects saturated nickel chloride aqueous solution, a small amount of saturated nickel chloride aqueous solution can and acid Phosphate reacts, and a small amount of nickel phosphate of generation has polymerization activity equally, the phosphoric acid of the method synthesis of the present invention In neodymium solution contain a small amount of nickel phosphate, as elastomeric polymerization catalyzed during, it is possible to decrease glue glue Degree, reduces energy loss;Make elastomeric molecular weight distribution broaden, possess the excellent of original rare-earth rubber Outside optimum energy, improve the processing characteristics of rubber.
Water content in reaction system directly affects the carrying out of this reaction, makes reaction slack-off or terminates, this While the saturated nickel chloride aqueous solution of bright middle use ensures catalytic action, the water content in control reaction system, A small amount of nickel chloride and phosphate additionally can be made to react, meet the requirement of its reaction power.Use saturated nickel chloride The aqueous solution, as catalyst, has its special role and meaning.
Use the method for the present invention, course of reaction adds dehydrating agent (such as molecular sieve, silica gel), removes The water that dereaction generates, its object is to water content in control course of reaction, makes catalyst system and catalyzing meet reaction dynamic Mechanical requirements, reaction generates the neodymium phosphate solution that product is containing a small amount of nickel phosphate, is new bimetallic catalyst, Can be used for rubber synthesis;In addition, reaction system water content is fewer, the reaction speed of this reaction is faster, reaction Carry out is more thorough;Finally, the water content controlling reaction system can make the viscous of product neodymium phosphate solution Degree reduces, and can directly utilize.
Neodymium phosphate solution prepared by the method for the present invention can be urged as causing alkene, the rare earth of diene polymerization Major catalyst in change system, as elastomeric polymerization catalyzed during can effectively reduce gelatin viscosity, Having, product polymerization activity is high, production technology is simple, production cost is low.And, in delaminating process The aqueous phase that arrives can be with safety dumping after processing, and Reusability.In this method course of reaction pollution-free Thing discharges, and does not results in environmental pollution.
The product of method provided by the present invention is neodymium phosphate solution, can be as initiation alkene, diene polymerization Rare-earth catalysis system in major catalyst;This product can dissolve each other with alkane, aromatic hydrocarbons equal solvent arbitrary proportion, Optional more and aging more freely in multicomponent catalyst ageing process.
Metal halide salt of the present invention is non-rare earth metal halide salt, and described non-rare earth metal halide salt is selected from Nickel chloride, iron chloride, cobalt chloride, titanium chloride, this metallic element has catalytic action to alkene or alkadienes, A small amount of nickel, iron, cobalt, titanium can generate organic phosphate and be present in neodymium phosphate solution, this nickel, iron, cobalt, The organic phosphate of titanium plays the effect in activated centre in the course of the polymerization process, improves the processed and applied performance of product.
Brief description
The structural representation of the process units that Fig. 1 is used by embodiment 1.
Wherein, reference:
1-the first charging aperture
2-nickel chloride solution kettle
3-the second charging aperture
4-reactor
5-drain hole
6-the 3rd charging aperture
7-the 4th charging aperture
Detailed description of the invention
The present invention is by with neodymia as raw material, and with non-rare earth metal halide salt as catalyst, synthesis obtains phosphorus Acid neodymium solution.
Present invention firstly provides a kind of method synthesizing neodymium phosphate solution, it comprises the following steps:
Step 1: metal halide salt is made saturated metal halide saline solution, with described saturated metal halide Saline solution is catalyst;
Step 2: acid phosphoric acid ester and organic solvent are mixed to get phosphate ester solution, described acid phosphoric acid ester Volume ratio with organic solvent is 1:2-1:20, and described organic solvent is linear paraffin or cycloalkane or aromatic hydrocarbons;
Step 3: neodymia pressed powder is joined stirring in phosphate ester solution and obtains turbid solution, and heat To 20-50 DEG C, described neodymia is 1:6 with the mol ratio of described acid phosphoric acid ester;
Step 4: described saturated metal halide saline solution is joined in described turbid solution, heating stirring, Adding molecular sieve, reacting 20-90 minute at 20-70 DEG C, reaction terminates rear static layering, isolated Oil phase, described oil phase is neodymium phosphate solution, the mol ratio control of described metal halide salt and described acid phosphoric acid ester It is made as 1:5-1:50.
It is preferred that also include step 5: reaction terminates rear static layering, and lower floor is aqueous metal halogenation salt solution Solution, recycling.
Wherein, described metal halide salt is non-rare earth metal halide salt, and described non-rare earth metal halide salt is selected from Nickel chloride, iron chloride, cobalt chloride or titanium chloride, this metallic element has catalytic action to alkene or alkadienes.
Wherein, a small amount of nickel, iron, cobalt, titanium can generate organic phosphate and be present in neodymium phosphate solution, should Nickel, iron, cobalt, the organic phosphate of titanium play the effect in activated centre in the course of the polymerization process, improve product Processed and applied performance.
Wherein, in step 3, described be heated to 20-50 DEG C for turbid solution catalyst addition before preheating temperature Degree, can make reaction accelerate and make reaction more complete.
Wherein, step 4 adds described molecular sieve to remove the water that reaction generates, make catalyst system and catalyzing meet reaction Demanding kinetics.
Wherein, in described step 1, it is will to carry 0-6 that metal halide salt is made saturated metal halide saline solution Saturated nickel chloride aqueous solution made by the nickel chloride of the individual crystallization water, and described saturated nickel chloride aqueous solution is 20-50 DEG C Saturated nickel chloride aqueous solution.
In the above-mentioned methods, the acid phosphoric acid ester being used can be acid organo phosphates;Preferably, should Acid organo phosphates is (RO)2POOH, R (RO) POOH or R2POOH etc., wherein, R is 2-13 carbon Alkyl or its isomers.It is highly preferred that acid organo phosphates is di-(2-ethylhexyl)phosphoric acid ester, 2- One or more in ethylhexyl phosphoric acid 2-ethylhexyl and methyl acid phosphate diformazan fat in heptan etc..
In the above-mentioned methods, the organic solvent being used can be alkane or cycloalkane or aromatic hydrocarbons etc., is preferably Linear paraffin or cycloalkane etc.;It is highly preferred that above-mentioned organic solvent is in hexane, heptane, carbon six oil etc. One or more.
The neodymium phosphate solution being obtained by said method, can be mutual with arbitrary proportion with alkane, aromatic hydrocarbons equal solvent Molten, optional more, aging more freely in multicomponent catalyst ageing process.At isolated oil Aqueous phase obtained during phase is the aqueous solution of nickel chloride, can reuse, it is to avoid environmental pollution.
Present invention also offers a kind of neodymium phosphate solution, it is by above-mentioned method synthesis, this neodymium phosphate Chemical formula is NdD3, wherein D represents acid phosphoric acid ester, for example acid organo phosphates, this neodymium phosphate solution Containing a small amount of Metal organophosphates, the chemical formula of described Metal organophosphates is MDn, M represents metal, D represents acid phosphoric acid ester, and n represents the quantity of the organophosphorus ester containing, and described acid phosphoric acid ester is that acidity has Machine phosphate.
In order to the technical characteristic of the present invention, purpose and beneficial effect are more clearly understood from, existing to this Bright technical scheme carries out described further below, but it is not intended that to the present invention can the restriction of practical range.
Embodiment 1
Present embodiments providing a kind of method synthesizing neodymium phosphate solution, it is to use the production dress shown in Fig. 1 Putting and carrying out, the method comprises the following steps:
1st, six water nickel chlorides are configured to saturated nickel chloride aqueous solution in nickel chloride solution kettle 2;
2nd, in reactor 4, add carbon six oil 840kg by the first charging aperture 1, be subsequently adding 2-ethyl hexyl Base phosphoric acid 2-ethylhexyl 150kg, molecular sieve 5kg, heating stirring 5min;
3rd, in reactor 4, add neodymia pressed powder 25kg by the 3rd charging aperture 6, stir 5min;
4th, the saturated nickel chloride aqueous solution in nickel chloride solution kettle 2 is joined reaction by the second charging aperture 3 Reacting in kettle 4, the addition of saturated nickel chloride aqueous solution is 5L, and reaction temperature control is 35-50 DEG C, Reaction time control is 90min;
5th, after reaction completes, stop the stirring in reactor 4, stand 30min, treat material layering in kettle, By drain hole 5 by lower floor's aqueous phase output, join in nickel chloride solution kettle 2 through the 4th charging aperture 7, stay In reactor 4 for oil phase, this oil phase is neodymium phosphate solution, can be exported by drain hole 5, should Neodymium phosphate solution can preserve under nitrogen protection in products pot for a long time.
Conclusion: saturated nickel chloride solution plays the effect of catalyst in the reaction of synthesis neodymium phosphate solution.
Embodiment 2
The saturated nickel chloride solution of the present embodiment checking synthesizes its catalysis in neodymium phosphate solution methods in embodiment 1 and makees With this checking test comprises the following steps:
1st, in reactor 4, add carbon six oil 840kg by the first charging aperture 1, be subsequently adding 2-ethyl hexyl Base phosphoric acid 2-ethylhexyl 150kg, adds molecular sieve 5kg, heating stirring 5min;
2nd, in reactor 4, add neodymia pressed powder 25kg by the 3rd charging aperture 6, stir 5min; Being 50-55 DEG C by the control of mixed solution temperature, stir 60min, there is not any reaction in neodymia;
3rd, six water nickel chlorides are configured to saturated nickel chloride aqueous solution in nickel chloride solution kettle 2;
4th, the saturated nickel chloride aqueous solution in nickel chloride solution kettle 2 is joined reaction by the second charging aperture 3 Reacting in kettle 4, the addition of saturated nickel chloride aqueous solution is 5L, and reaction temperature control is 50-55 DEG C, Reaction time control is 60min, and neodymia starts reaction, and reaction solution is light blue purple;
5th, after reaction completes, stop the stirring in reactor 4, stand 30min, treat material layering in kettle, By drain hole 5 by lower floor's aqueous phase output, join in nickel chloride solution kettle 2 through the 4th charging aperture 7, stay In reactor 4 for oil phase, this oil phase is neodymium phosphate solution, can be exported by drain hole 5.
Conclusion: saturated nickel chloride solution plays the effect of catalyst in the reaction of synthesis neodymium phosphate solution.
Embodiment 3
Present embodiments providing a kind of method synthesizing neodymium phosphate solution, it is to use the production dress shown in Fig. 1 Putting and carrying out, the method comprises the following steps:
1st, six water titanium chlorides are configured to saturated titanium chloride aqueous solution in titanium chloride solution kettle 2;
2nd, in reactor 4, add carbon six oil 840kg by the first charging aperture 1, be subsequently adding 2-ethyl hexyl Base phosphoric acid 2-ethylhexyl 150kg, molecular sieve 5kg, heating stirring 5min;
3rd, in reactor 4, add neodymia pressed powder 25kg by the 3rd charging aperture 6, stir 5min, Being 20-50 DEG C by the control of mixed solution temperature, stir 60min, there is not any reaction in neodymia;
4th, the saturated titanium chloride aqueous solution in titanium chloride solution kettle 2 is joined reaction by the second charging aperture 3 Reacting in kettle 4, the addition of saturated titanium chloride aqueous solution is 5L, and reaction temperature control is 20-70 DEG C, Reaction time control is 20min;
5th, after reaction completes, stop the stirring in reactor 4, stand 30min, treat material layering in kettle, By drain hole 5 by lower floor's aqueous phase output, join in titanium chloride solution kettle 2 through the 4th charging aperture 7, stay In reactor 4 for oil phase, this oil phase is neodymium phosphate solution, can be exported by drain hole 5, should Neodymium phosphate solution can preserve under nitrogen protection in products pot for a long time.
Conclusion: saturated titanium chloride solution plays the effect of catalyst in the reaction of synthesis neodymium phosphate solution.
In addition, iron chloride, cobalt chloride can be applied equally in above-described embodiment 1-3.
Embodiment 4
Carrying out activity rating to the neodymium phosphate solution of embodiment 1 preparation, wherein, catalyst is in embodiment 1 Rare earth catalyst.
Activity rating method: use batch solution polymerization technique synthesizing rare-earth butadiene rubber to evaluate, specifically Method is: adds 2100mL carbon six oil in polymeric kettle, then adds 5.74mol butadiene in polymeric kettle, Stir, and temperature of charge is maintained at 35-50 DEG C in making polymeric kettle, pressure≤0.4MPa in kettle, carbon six Oil, butadiene adition process require to use N2Protection, it is to avoid ingress of air, oxygen gas and water etc.;To catalyst 2.87 × 10 are added in charge pipe-4mol NdD3/5.74×10-3molDIBAL-H/1.0×10-3molEASC;Make It is pressed into the catalyst in catalyst addition tube in reactor with N2, by the N2 ftercompction of reactor pressure extremely 0.45-0.50MPa;Control jacket of polymerization coolant-temperature gage is 60-80 DEG C, discharges material after reacting 4 hours; In kettle, material boils 40 minutes in boiling water, takes out material mill (control of mill temperature is 120 DEG C) On press dry after, obtain rare earth polybutadiene rubber, weigh.Obtain dry glue 290g.
Catalyst: this catalyst system and catalyzing includes NdD3, DIBAL-H and EASC tri-kinds of components, wherein NdD3For reality Execute the catalyst that example 1 provides.
Polymerization technique uses batch solution polymerization, and reactor uses 5L polymerization reaction kettle, and agitating mode uses anchor Formula stirs, and agitation revolution is 100r/min, and fourth oil concentration is 12g/100mL, and polymerization reaction time is 3.5-4.5h, polymeric reaction temperature is 60-120 DEG C, and polymerization pressure is 0.3-0.8MPa.
Activity evaluation display polymerization reaction monomer conversion ratio reaches 94%, and product Mooney is 44.2.
Evaluation and test conclusion: use NdD3It for major catalyst, is catalyzed with DIBAL-H and EASC composition ternary RE System, can cause polymerizing butadiene, synthesizing rare-earth butadiene rubber, and result shows, uses the present invention to prepare Neodymium phosphate solution is major catalyst, and activity is good, and monomer conversion reaches more than 90%.
The effect of the present invention:
The method of the present invention is during synthesis neodymium phosphate solution, and catalyst choice is non-rare earth metal halogen Changing the saturated solution of salt, a small amount of saturated non-rare earth metal halide salt can react with acid phosphoric acid ester, generation A small amount of non-rare earth metal salt of phosphoric acid, and the non-rare earth metal salt of phosphoric acid has polymerization activity equally, the side of the present invention The neodymium phosphate solution of method synthesis contains the non-rare earth metal salt of a small amount of phosphoric acid, is urging as elastomeric polymerization There is its specific effect during change, be in particular in: during being polymerized again, reduce gelatin viscosity, subtract Few production is lost;Elastomeric molecular weight distribution is made to broaden, at the premium properties possessing original rare-earth rubber Outside, improve the processing characteristics of rubber.
The especially present invention selects saturated nickel chloride aqueous solution, a small amount of saturated nickel chloride aqueous solution can and acid Phosphate reacts, and a small amount of nickel phosphate of generation has polymerization activity equally, the phosphoric acid of the method synthesis of the present invention In neodymium solution contain a small amount of nickel phosphate, as elastomeric polymerization catalyzed during, it is possible to decrease glue glue Degree, reduces and produces loss;Make elastomeric molecular weight distribution broaden, possess the excellent of original rare-earth rubber Outside optimum energy, improve the processing characteristics of rubber.
Water content in reaction system directly affects the carrying out of this reaction, makes reaction slack-off or terminates, this While the saturated nickel chloride aqueous solution of bright middle use ensures catalytic action, the water content in control reaction system, A small amount of nickel chloride and phosphate additionally can be made to react, meet the requirement of its reaction power.Use saturated nickel chloride The aqueous solution, as catalyst, has its special role and meaning.
Use the method for the present invention, course of reaction adds dehydrating agent (such as molecular sieve, silica gel), removes The water that dereaction generates, its object is to water content in control course of reaction, makes catalyst system and catalyzing meet reaction dynamic Mechanical requirements.
Neodymium phosphate solution prepared by the method for the present invention as elastomeric polymerization catalyzed during can have Effect reduces gelatin viscosity, and product polymerization activity is high, production technology is simple, production cost is low, environmental protection having The feature such as pollution-free.
Compared with prior art, the method for synthesis neodymium phosphate solution provided by the present invention has the advantage that Neodymium phosphate catalyst synthesized by preparation method of the prior art is solid, and reaction is to make at ethanol or acetone By lower generation neodymium phosphate precipitation, this precipitation is insoluble in alkane, aromatic solvent;And method provided by the present invention Product be neodymium phosphate solution, and the product obtained by the method for the present invention can be with alkane, aromatic hydrocarbons equal solvent Arbitrary proportion dissolves each other, optional more and aging more freely in multicomponent catalyst ageing process;
In addition, method provided by the present invention will not produce the acetone or alcohol aqueous solution in preparation process, no Relating to product repeatedly to wash, be dried, production technology is substantially simple, and production cost is low, and, it had been layered The nickel chloride aqueous solution obtaining in journey, can reuse, not result in environmental pollution.
Certainly, the present invention also can have other various embodiments, in the feelings without departing substantially from present invention spirit and essence thereof Under condition, those of ordinary skill in the art can make various corresponding change according to the present invention and deform, but this A little corresponding changes and deformation all should belong to the protection domain of the claims in the present invention.

Claims (14)

1. the method synthesizing neodymium phosphate solution, it is characterised in that comprise the following steps:
Step 1: metal halide salt is made saturated metal halide saline solution, with described saturated metal halide Saline solution is catalyst;
Step 2: acid phosphoric acid ester and organic solvent are mixed to get phosphate ester solution, described acid phosphoric acid ester Volume ratio with organic solvent is 1:2-1:20, and described organic solvent is linear paraffin or cycloalkane or aromatic hydrocarbons;
Step 3: by neodymia pressed powder, join stirring in phosphate ester solution and obtain turbid solution, and add Heat arrives 20-50 DEG C, and described neodymia is 1:6 with the mol ratio of described acid phosphoric acid ester;
Step 4: described saturated metal halide saline solution is joined in described turbid solution, heating stirring, Adding molecular sieve, reacting 20-90 minute at 20-70 DEG C, reaction terminates rear static layering, isolated Oil phase, described oil phase is neodymium phosphate solution, the mol ratio control of described metal halide salt and described acid phosphoric acid ester It is made as 1:5-1:50.
2. method according to claim 1, it is characterised in that described metal halide salt is non-rare earth gold Belong to halide salt.
3. method according to claim 2, it is characterised in that described non-rare earth metal halide salt is selected from Nickel chloride, iron chloride, cobalt chloride or titanium chloride.
4. method according to claim 3, it is characterised in that a small amount of nickel, iron, cobalt, titanium generate Organic phosphate is present in neodymium phosphate solution, and this nickel, iron, cobalt, the organic phosphate of titanium are in polymerization process In play the effect in activated centre, improve the processed and applied performance of product.
5. method according to claim 1, it is characterised in that in step 3, described is heated to 20-50 DEG C For preheating temperature before catalyst addition for the turbid solution.
6. method according to claim 1, it is characterised in that add described molecular sieve to remove in step 4 The water that dereaction generates.
7. method according to claim 1, it is characterised in that described acid phosphoric acid ester is acid organic Phosphate.
8. method according to claim 7, it is characterised in that described acid organo phosphates is (RO)2POOH, R (RO) POOH or R2POOH, described R are alkyl or its isomers of 2-13 carbon.
9. method according to claim 8, it is characterised in that described acid organo phosphates is two (2- Ethylhexyl) phosphate, in 2-ethylhexyl phosphoric acid 2-ethylhexyl and methyl acid phosphate diformazan fat in heptan one Plant or several.
10. method according to claim 1, it is characterised in that described organic solvent is hexane, heptan One or more in alkane, carbon six oil.
11. methods according to claim 1, it is characterised in that in described step 1, by metal halogen Change salt making saturated metal halide saline solution is that the nickel chloride with 0-6 the crystallization water is made saturated nickel chloride The aqueous solution.
12. methods according to claim 11, it is characterised in that described saturated nickel chloride aqueous solution is The saturated nickel chloride aqueous solution of 20-50 DEG C.
13. methods according to claim 1, it is characterised in that also include step 5: reaction terminates Rear static layering, lower floor is the aqueous metal halide salt aqueous solution, recycling.
14. 1 kinds of neodymium phosphate solution, it is characterised in that by the method according to any one of claim 1-13 Synthesis, the chemical formula of described neodymium phosphate is NdD3, D represents acid phosphoric acid ester, and described acid phosphoric acid ester is acid Property organophosphorus ester, this neodymium phosphate solution contains a small amount of Metal organophosphates, described Metal organophosphates Chemical formula be MDn, M represents metal, and D represents acid phosphoric acid ester, and n represents the organophosphorus ester containing Quantity, described acid phosphoric acid ester is acid organo phosphates.
CN201510142593.XA 2015-03-27 2015-03-27 Method for synthesizing neodymium phosphate solution and synthesized neodymium phosphate solution Active CN106145078B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111908439A (en) * 2020-07-17 2020-11-10 南昌航空大学 Method for preparing neodymium phosphate dihydrate rodlike nanocrystal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008090141A1 (en) * 2007-01-23 2008-07-31 Rhodia Operations Method for preparing a solution of a rare earth organophosphate
WO2010133608A1 (en) * 2009-05-19 2010-11-25 Societe De Technologie Michelin Method for synthesising a rare earth organophosphate and use thereof to prepare a "preformed" catalytic system
CN103224517A (en) * 2013-04-17 2013-07-31 中国石油天然气股份有限公司 Method for synthesizing solution type neodymium phosphate complex
CN103694386A (en) * 2013-12-19 2014-04-02 山东玉皇化工有限公司 Preparation method of organic neodymium phosphate catalyst system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008090141A1 (en) * 2007-01-23 2008-07-31 Rhodia Operations Method for preparing a solution of a rare earth organophosphate
WO2010133608A1 (en) * 2009-05-19 2010-11-25 Societe De Technologie Michelin Method for synthesising a rare earth organophosphate and use thereof to prepare a "preformed" catalytic system
CN103224517A (en) * 2013-04-17 2013-07-31 中国石油天然气股份有限公司 Method for synthesizing solution type neodymium phosphate complex
CN103694386A (en) * 2013-12-19 2014-04-02 山东玉皇化工有限公司 Preparation method of organic neodymium phosphate catalyst system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111908439A (en) * 2020-07-17 2020-11-10 南昌航空大学 Method for preparing neodymium phosphate dihydrate rodlike nanocrystal
CN111908439B (en) * 2020-07-17 2023-04-18 南昌航空大学 Method for preparing neodymium phosphate dihydrate rodlike nanocrystal

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