EP2326614A1 - Verfahren zur isolierung von di-trimethylolpropan - Google Patents
Verfahren zur isolierung von di-trimethylolpropanInfo
- Publication number
- EP2326614A1 EP2326614A1 EP09781689A EP09781689A EP2326614A1 EP 2326614 A1 EP2326614 A1 EP 2326614A1 EP 09781689 A EP09781689 A EP 09781689A EP 09781689 A EP09781689 A EP 09781689A EP 2326614 A1 EP2326614 A1 EP 2326614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tmp
- distillation
- phase
- water
- organic solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 title abstract description 10
- 238000004821 distillation Methods 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000012071 phase Substances 0.000 claims description 32
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- 238000002425 crystallisation Methods 0.000 claims description 17
- 230000008025 crystallization Effects 0.000 claims description 17
- 239000003960 organic solvent Substances 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 14
- 239000008346 aqueous phase Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 150000004675 formic acid derivatives Chemical class 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000012043 crude product Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 7
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 150000007529 inorganic bases Chemical class 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012736 aqueous medium Substances 0.000 claims description 3
- 238000005191 phase separation Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical group CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 abstract description 39
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 7
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical class OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000012074 organic phase Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- YYKMQUOJKCKTSD-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butanal Chemical compound CCC(CO)(CO)C=O YYKMQUOJKCKTSD-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- XIKVGYYSAJEFFR-UHFFFAOYSA-N 2-(hydroxymethyl)butanal Chemical compound CCC(CO)C=O XIKVGYYSAJEFFR-UHFFFAOYSA-N 0.000 description 1
- GMLDCZYTIPCVMO-UHFFFAOYSA-N 2-methylidenebutanal Chemical compound CCC(=C)C=O GMLDCZYTIPCVMO-UHFFFAOYSA-N 0.000 description 1
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000004281 calcium formate Substances 0.000 description 1
- 229940044172 calcium formate Drugs 0.000 description 1
- 235000019255 calcium formate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000011549 crystallization solution Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940044170 formate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/38—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Definitions
- the present invention relates to a process for the isolation of ditrimethylolpropane from side streams of trimethylolpropane preparation.
- Ditrimethylolpropane (Di-TMP) is a starting material for the production of alkyd resins, high quality paints and coatings, plasticizers and lubricants.
- TMP trimethylolpropane
- Trimethylolpropane is industrially produced by the reaction of formaldehyde and n-butyraldehyde in an aqueous medium in the presence of bases. Intermediate stages are included
- Formaldehyde and stoichiometric amounts of a base to TMP and the corresponding formic acid salt are Formaldehyde and stoichiometric amounts of a base to TMP and the corresponding formic acid salt.
- the hydrogenation process requires expensive technologies such as catalytic hydrogenation under pressure, while the C annizarro processes are easy to carry out with, for example, sodium hydroxide, sodium carbonate or calcium hydroxide as the base. It is particularly advantageous that when using calcium hydroxide as the base calcium formate is formed as by-product, which brings an additional value for the process.
- JP 57011934 and JP 61021538 that this can be achieved by a formaldehyde content of less than 20% based on the total amount of water and formaldehyde.
- JP 0815740 describes the preparation of TMP and Di-TMP in a two-phase reaction system.
- Reaction mixture remaining base steps for concentrating the crude aqueous solution such as distilling off Leichsiedern and water, followed by steps for the separation of inorganic coupling products, in particular formates and steps for the purification of the reaction product TMP.
- the separation of the inorganic formates is generally carried out after a concentration by filtration of the precipitated formates or by an extraction step in which TMP and organic by-products are separated from the aqueous formate solution.
- An extraction step for the separation of TMP and Di-TMP from the inorganic formates has the disadvantage that an additional stream of material adapted to the total amount of TMP product has to be circulated, evaporated and condensed, which is energetically unfavorable.
- the target product TMP is generally distilled one or more times after the separation of formates for further purification. In these distillations, the di-TMP typically remains at the bottom of the TMP distillation. Due to its high boiling point, Di- TMP can only be recovered by distillation without undue decomposition.
- DE 2058518 describes a method of separating di-TMP by steam distillation in vacuo from the remaining bottom. This method has the disadvantage that large amounts of water vapor are required and only a very impure product is obtained, which must be further purified by multiple crystallization from an organic solvent.
- Di-TMP is enriched in the distillation bottoms of TMP distillation. Therefore, this sump typically serves as a convenient starting point for di-TMP recovery.
- the present invention is therefore based on the object to obtain di-TMP in high purity from side streams of TMP production.
- a multi-phase system preferably a two-phase system - - forms at least one organic solvent phase and a viscous residue phase
- step b) the organic solvent phase obtained according to step b) is extracted with water
- the di-TMP is isolated from the aqueous phase obtained according to step d).
- Suitable distillation bottoms of a TMP distillation are, in particular, those obtained by distillation of TMP-containing crude products having a TMP content of less than 98% by weight.
- the crude products containing TMP having been prepared by a process comprising at least the following steps:
- TMP-containing crude products typically accumulate in TMP production processes.
- the crude products containing TMP are prepared by a process which, in addition to steps i), ii) and iii), also comprises the following step:
- Step iii) the at least partial separation of inorganic formates can be carried out, for example, by extraction, filtration, sedimentation or centrifugation, preferably by filtration, sedimentation or centrifugation.
- Preferred distillation bottoms of the aforementioned type are those in which the inorganic base in step i) is sodium or calcium hydroxide, preferably calcium hydroxide.
- the distillation bottoms used in addition to di-TMP still contain amounts of trimethylolpropane and cyclic and linear formals of trimethylolpropane.
- the content of Di- TMP is typically between 5% and 60 wt .-% based on the mass of the distillation bottoms.
- the content of TMP is typically between 1% and 50% by weight, based on the mass of the distillation bottoms
- distillation bottoms may also contain inorganic salts.
- these salts are the formates.
- the pH of the bottoms typically depends on the method used to obtain the TMP-containing crude products. Typical values can be between pH 6 and 10 at standard conditions.
- step a) the distillation bottoms are taken up in a suitable solvent.
- the distillation bottoms at a temperature of 50 to 100 0 C, preferably between 70 to 95 ° C, preferably 75 ° C to 85 ° C was added to a suitable solvent.
- Suitable solvents for extraction are solvents or mixtures of solvents which are not completely miscible with water and have a boiling point between the softening point of the distillation bottoms and the temperature of significant sump decomposition commencing. Preference is given to solvents having boiling points between 40 and 200 ° C., more preferably between 70 and 160 ° C., particularly preferably between 80 ° C. and
- suitable solvents are aromatic and aliphatic hydrocarbons, esters, ethers, alcohols or ketones. Preference is given to ethers, esters or ketones. Especially preferred - are cyclohexanone, methyl isobutyl ketone, ethyl acetate and butyl acetate or mixtures of such solvents.
- the appropriate amount of solvent depends on the viscosity and the softening point of the distillation bottoms and is easily adapted by a person skilled in the art by a preliminary test to a specific distillation bottoms. Preferred are amounts of solvent corresponding to the amounts of bottoms up to ten times. Preference is given to amounts of from 1 to 8 times the volume of the distillation bottoms, particularly preferably amounts of between twice and five times the amount based on the bottoms.
- water and optionally but preferably an acid are added in an amount such that a multiphase system is formed from at least one organic solvent phase and one viscous residue phase.
- water and acid depend on the composition and the pH of the sump and are easily adapted by a person skilled in the art to a particular distillation bottoms.
- water is initially added in an amount of about 5 to 10% by weight, based on the distillation bottoms, and then in portions
- the amount of water to be added is typically in the range of 1 to 100 wt .-% based on the mass of the distillation bottoms used, preferably between 5 and 30 wt .-%.
- the amount of acid used is typically in the range from 0.5 to 10% by weight, based on the distillation bottoms used, preferably in the range from 0.5 to 5% by weight.
- the amount of acid to be used is typically higher, the more alkaline the distillation bottoms used.
- Acids which do not form sparingly soluble salts with the cations optionally contained in the distillation bottoms are those which have a maximum solubility of less than 5 g / l in water at 20 ° C. Particular preference is given to organic acids, very particular preference to formic acid and acetic acid. - -
- the acid and the water can also be used together or as dilute aqueous solutions of the acids.
- the supply of mixing energy which can take place, for example, by mixing devices known per se, such as stirrers, is switched off and then for 5 minutes to 24 hours, preferably for 5 minutes to 8 hours, particularly preferably for 10
- the polyphase system is additionally admixed with about 0.05 to 5% by weight, preferably 0.1 to 1.0% by weight, of activated carbon, based on the distillation bottoms.
- step b the viscous residue phase by phase separation of the organic
- Solvent phase in a conventional manner, e.g. separated by deposition.
- the viscous residue phase is added again with 50 to 200% by weight of organic solvent, preferably heated, and left to settle again. As the lower phase is obtained in this way a much fluid oil than the original viscous residue phase.
- the resulting supernatant organic phase is preferably reused in the next batch for the same purpose.
- step c) the organic solvent phase obtained in step b) is extracted with water.
- the extraction is preferably carried out after filtration of the organic solvent phase.
- the amount of water used for the extraction is for example 2 to 100 wt .-%, preferably to
- the aqueous phase is separated off and the organic phase is optionally but preferably re-extracted at least once with water.
- step d) organic solvent which is present in the aqueous phase obtained in step c) or the optionally combined aqueous phases is removed.
- the removal can be carried out in a manner known per se, for example, and preferably by distillation.
- the distillation can for example be done at a pressure between 950 and 10 mbar. Preferably, it is distilled until the organic solvent from the sump is at least 90%, preferably at least 98%, removed from the aqueous phase.
- di-TMP is isolated from the aqueous phase, preferably by crystallization.
- the distillation residue from step d) is diluted with water such that the Di-TMP content is between 10 and 25% by weight, preferably between 10 and 20% by weight.
- the mixture is preferably heated until a clear solution is present and then slowly cooled with stirring at a cooling rate between 0.5 0 C and 6 ° C per hour until incipient crystallization.
- the precipitated crystals are, for example, by
- the crystallization mixture is seeded at a suitable temperature, for example between 25 and 15 ° C.
- seed crystals may be taken from a previous batch and triturated in water or obtained by flash cooling a small portion of the crystallization mixture.
- a suspension of di-TMP in water at a temperature close to 0 0 C is introduced and the warm crystallization solution in 0.25 to 24 hours, preferably in 0.5 to 12 hours added so that the proposed mixture remains at the originally set temperature. After dosing, the mixture is stirred for 0.5 hours to 8
- the moist, washed product is melted, residual solvent is removed by distillation and the melt is compounded, for example, on a flaking roll or a pastillizer.
- the process according to the invention or individual steps thereof are carried out partly continuously or continuously.
- Example 1 Extraction of the sump with water according to DE2358297
- Example 3 Extraction of a distillation bottoms 200 according to the invention into a distillation bottoms comprising 6.5% by weight of trimethylolpropane, 34% by weight of di-TMP, 24.3% by weight of linear TMP formal and 2.5% by weight.
- the viscous phase from the first extraction of the sump was again mixed with the same mass of butyl acetate and heated to 125 ° C. It was allowed to settle again and received as a lower phase, a fluid oil.
- the still hot organic phase from the first extraction was mixed with 60 g of water and cooled to 25 ° C.
- the phases are separated and the organic phase extracted again with 20 g of water at 25 ° C.
- aqueous phases were combined and distilled at a top temperature of 95 ° C.
- 92 g of a two-phase mixture of butyl acetate and water were distilled off at a pressure of 100 mbar on a rotary evaporator.
- Example 4 Crystallization by Crystallization 147 g of a solution prepared analogously to Example 3 and containing 13.9% by weight of di-TMP were inoculated at 22 ° C. with a suspension of di-TMP in water, in 24 hours Cooled to -2 ° C, stirred for three hours at -2 ° C and filtered. The filter cake was washed twice with 50 ml of ice water, sucked dry and the crystals dried in a vacuum oven to 60 0 C. This gave 16.2 g of di-TMP with a purity of
- Example 5 Crystallization by Crystallization The procedure was as described in Example 4, but with the difference that the mixture was cooled in 8 hours. This gave 16.4 g of dried di-TMP with a purity of 98.9%, corresponding to 80% of the use in the crystallization.
- Example 6 Extraction of the distillation bottoms with recycling of the butyl acetate phase The procedure was as described in Example 4, but with the difference that instead of fresh butyl acetate, the azeotropically dewatered butyl acetate phase from Example 3, which additionally contained 11.8 g of di-TMP has been. 480 g of an aqueous solution containing 78.3 g of di-TMP were obtained.
- Example 7 Semibatch crystallization with recycling of the wash water
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008038021A DE102008038021A1 (de) | 2008-08-16 | 2008-08-16 | Verfahren zur Isolierung von Di-Trimethylolpropan |
| PCT/EP2009/060363 WO2010020561A1 (de) | 2008-08-16 | 2009-08-11 | Verfahren zur isolierung von di-trimethylolpropan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2326614A1 true EP2326614A1 (de) | 2011-06-01 |
Family
ID=41165507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09781689A Withdrawn EP2326614A1 (de) | 2008-08-16 | 2009-08-11 | Verfahren zur isolierung von di-trimethylolpropan |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8642816B2 (de) |
| EP (1) | EP2326614A1 (de) |
| JP (1) | JP5312591B2 (de) |
| CN (1) | CN102143931B (de) |
| DE (1) | DE102008038021A1 (de) |
| WO (1) | WO2010020561A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010033844B4 (de) | 2010-08-11 | 2013-01-03 | Oxea Gmbh | Verfahren zur Gewinnung von Di-Trimethylolpropan und mit Trimethylolpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung |
| DE102011118956A1 (de) | 2011-11-19 | 2013-05-23 | Oxea Gmbh | Verfahren zur Gewinnung von Di-Trimethylolpropan und mit Trimethylolpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung |
| DE102011118953B4 (de) * | 2011-11-19 | 2014-06-05 | Oxea Gmbh | Destillatives Verfahren zur Gewinnung von Di-Trimethylolpropan |
| DE102011118993A1 (de) | 2011-11-19 | 2013-05-23 | Oxea Gmbh | Verfahren zur Gewinnung von Di-Trimethylpropan und mit Trimethylpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung |
| SG10201709161SA (en) * | 2013-05-17 | 2017-12-28 | Fujifilm Electronic Mat Usa Inc | Novel polymer and thermosetting composition containing same |
| CN103467252B (zh) * | 2013-09-05 | 2014-12-24 | 百川化工(如皋)有限公司 | 一种提高双三羟甲基丙烷纯度的方法 |
| US9108911B1 (en) | 2014-03-26 | 2015-08-18 | Oxea Bishop Llc | Process for the manufacture of di-TMP |
| CN105152875B (zh) * | 2015-07-23 | 2017-03-08 | 百川化工(如皋)有限公司 | 一种从三羟甲基丙烷残液中回收双三羟甲基丙烷的方法 |
| CN109485554A (zh) * | 2018-11-27 | 2019-03-19 | 濮阳市永安化工有限公司 | 从三羟甲基丙烷重组分中分离出双三羟甲基丙烷的方法 |
| CN110563562B (zh) * | 2019-09-25 | 2022-08-02 | 南通百川新材料有限公司 | 一种三羟甲基丙烷重组分的萃取水洗方法 |
| CN114181044B (zh) * | 2021-12-03 | 2024-05-17 | 宁夏百川科技有限公司 | 高纯度双三羟甲基丙烷的制备方法 |
| CN118666641B (zh) * | 2024-06-24 | 2025-12-05 | 赤峰瑞阳化工有限公司 | 钙法三羟甲基丙烷高效缩合制备方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924043B1 (de) * | 1969-11-29 | 1974-06-20 | ||
| JPS4924044B1 (de) * | 1969-11-29 | 1974-06-20 | ||
| US3829507A (en) * | 1971-03-16 | 1974-08-13 | Celanese Corp | Di-trimethylolpropane |
| SE370388B (de) * | 1972-11-23 | 1974-10-14 | Perstorp Ab | |
| JPS5711934A (en) | 1980-06-26 | 1982-01-21 | Koei Chem Co Ltd | Production of ditrimethylolalkane or dipentaerythritol in high ratio as by-product |
| JPS6121538A (ja) | 1984-03-30 | 1986-01-30 | Sadao Ikeda | 商標登録更新記録デ−タの圧縮デ−タフアイル媒体 |
| JPH0815740A (ja) | 1994-06-30 | 1996-01-19 | Mitsubishi Chem Corp | 非線形光学材料用色素及びそれを含有する非線形光学材料 |
| JPH08157401A (ja) * | 1994-12-07 | 1996-06-18 | Koei Chem Co Ltd | トリメチロールプロパン及びジトリメチロールプロパンの製造方法 |
| JP3807514B2 (ja) | 1996-04-03 | 2006-08-09 | 三菱瓦斯化学株式会社 | ジトリメチロールプロパンの製造方法 |
| JP2002047232A (ja) * | 2000-08-03 | 2002-02-12 | Mitsubishi Gas Chem Co Inc | ジトリメチロールプロパンの回収法 |
| JP2002047233A (ja) * | 2000-08-03 | 2002-02-12 | Mitsubishi Gas Chem Co Inc | ジトリメチロールプロパンの分離方法 |
| JP2002047234A (ja) * | 2000-08-03 | 2002-02-12 | Mitsubishi Gas Chem Co Inc | ジトリメチロールプロパンの回収方法 |
| EP1178030A3 (de) | 2000-08-03 | 2002-03-27 | Mitsubishi Gas Chemical Company, Inc. | Verfahren zur Rückgewinnung von Ditrimethylolpropan |
| JP2002047231A (ja) | 2000-08-03 | 2002-02-12 | Mitsubishi Gas Chem Co Inc | ジトリメチロールプロパンの製造法 |
| DE10164264A1 (de) * | 2001-12-27 | 2003-07-17 | Bayer Ag | Verfahren zur Herstellung von Trimethylolpropan |
| JP2003267904A (ja) * | 2002-03-14 | 2003-09-25 | Mitsubishi Gas Chem Co Inc | ジトリメチロールプロパンの製造方法 |
| EP1491521A1 (de) * | 2003-06-13 | 2004-12-29 | Mitsubishi Gas Chemical Company, Inc. | Verfahren zur Herstellung von Ditrimethylolpropan |
| CN100548953C (zh) * | 2006-07-18 | 2009-10-14 | 中国石油天然气集团公司 | 一种提取双三羟甲基丙烷的方法 |
| CN100400489C (zh) * | 2006-08-24 | 2008-07-09 | 王强 | 双三羟甲基丙烷和三羟甲基丙烷甲缩醛生产工艺 |
-
2008
- 2008-08-16 DE DE102008038021A patent/DE102008038021A1/de not_active Withdrawn
-
2009
- 2009-08-11 US US13/058,618 patent/US8642816B2/en not_active Expired - Fee Related
- 2009-08-11 WO PCT/EP2009/060363 patent/WO2010020561A1/de not_active Ceased
- 2009-08-11 EP EP09781689A patent/EP2326614A1/de not_active Withdrawn
- 2009-08-11 CN CN200980134436.7A patent/CN102143931B/zh not_active Expired - Fee Related
- 2009-08-11 JP JP2011522498A patent/JP5312591B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010020561A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5312591B2 (ja) | 2013-10-09 |
| US8642816B2 (en) | 2014-02-04 |
| JP2011530567A (ja) | 2011-12-22 |
| US20120010435A1 (en) | 2012-01-12 |
| CN102143931A (zh) | 2011-08-03 |
| WO2010020561A1 (de) | 2010-02-25 |
| CN102143931B (zh) | 2014-06-18 |
| DE102008038021A1 (de) | 2010-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2326614A1 (de) | Verfahren zur isolierung von di-trimethylolpropan | |
| EP1323698A2 (de) | Verfahren zur Herstellung von Trimethylolpropan | |
| EP3548473B1 (de) | Hmf-herstellungsverfahren | |
| EP2603482B1 (de) | Verfahren zur gewinnung von di-trimethylolpropan und mit trimethylolpropan angereicherten produktströmen aus den nebenströmen der trimethylolpropanherstellung | |
| EP1242346A1 (de) | Verfahren zur reinigung von durch hydrierung hergestelltem trimethylolpropan durch kontinuierliche destillation | |
| DE69923825T2 (de) | Verfahren zur Herstellung von hochreinem Trimethylolpropan | |
| EP2281794B1 (de) | Verfahren zur Farbzahlverbesserung von Trimethylolpropan | |
| EP1955994B1 (de) | Verfahren zur Herstellung von DMA | |
| DE3415141A1 (de) | Verfahren zur isolierung von milchsaeure aus feststoffhaltigen waessrigen loesungen | |
| DE19963437A1 (de) | Verfahren zur Zersetzung von bei der Synthese mehrwertiger Alkohole gebildeter hochsiedender Nebenprodukte | |
| WO2015000762A1 (de) | Verfahren zur herstellung von 3-heptanol aus einer mischung enthaltend 2-ehthylhexanala und 3-heptylformiat | |
| EP1313688B1 (de) | Tmp/dampfdruckfiltration | |
| DE1567590B1 (de) | Verfahren zur Reinigung und Konzentrierung von Phosphorsaeure | |
| EP2780309A1 (de) | Verfahren zur gewinnung von di-trimethylolpropan und mit trimethylolpropan angereicherten produktströmen aus den nebenströmen der trimethylolpropanherstellung | |
| EP0174624A1 (de) | Verfahren zur Herstellung von Milchsäureestern | |
| WO2013072006A1 (de) | Verfahren zur gewinnung von di-trimethylolpropan und mit trimethylolpropan angereicherten produktströmen aus den nebenströmen der trimethylolpropanherstellung | |
| EP2129645A1 (de) | Verfahren zur farbzahlverbesserung von trimethylolpropan | |
| DE875804C (de) | Verfahren zur Herstellung von Umwandlungsprodukten des Pentaerythrit-dichlorhydrin-monoschwefligsaeureesters | |
| AT247298B (de) | Verfahren zur Herstellung reiner mehrwertiger Alkohole | |
| WO2024000002A1 (de) | Verfahren zur herstellung von lävulinsäure aus fructose | |
| DD273434A1 (de) | Verfahren zur entfernung von formaldehyd aus reaktionsprodukten der synthese mehrwertiger alkohole | |
| DD288377A5 (de) | Verfahren zur gewinnung von reinem trimethylolpropan | |
| DE2713277A1 (de) | Verfahren zur gewinnung von reinem phosphorsaeure-tris-(dimethylamid) | |
| DE2214225A1 (de) | Trimellitsaeureanhydrid-gewinnung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20110316 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WAGNER, PAUL Inventor name: OPPENHEIMER-STIX, CHRISTIANE Inventor name: HUMMELT, CARSTEN Inventor name: GERRIETS, HANS-DIETER Inventor name: FRIEDERICH, MICHAEL Inventor name: NOTHEIS, ULRICH Inventor name: RAUCHSCHWALBE, GUNTER |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LANXESS DEUTSCHLAND GMBH |
|
| 17Q | First examination report despatched |
Effective date: 20150904 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20160115 |