DE2527262A1 - Verfahren zum reinigen von triarylphosphaten - Google Patents
Verfahren zum reinigen von triarylphosphatenInfo
- Publication number
- DE2527262A1 DE2527262A1 DE19752527262 DE2527262A DE2527262A1 DE 2527262 A1 DE2527262 A1 DE 2527262A1 DE 19752527262 DE19752527262 DE 19752527262 DE 2527262 A DE2527262 A DE 2527262A DE 2527262 A1 DE2527262 A1 DE 2527262A1
- Authority
- DE
- Germany
- Prior art keywords
- phosphate
- torr
- column
- triaryl
- phenols
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 24
- 229910019142 PO4 Inorganic materials 0.000 claims description 42
- 235000021317 phosphate Nutrition 0.000 claims description 42
- 150000002989 phenols Chemical class 0.000 claims description 31
- 238000005194 fractionation Methods 0.000 claims description 23
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 19
- 239000010452 phosphate Substances 0.000 claims description 19
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000007701 flash-distillation Methods 0.000 claims description 14
- 238000004821 distillation Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 230000026731 phosphorylation Effects 0.000 claims description 9
- 238000006366 phosphorylation reaction Methods 0.000 claims description 9
- 239000000203 mixture Chemical class 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- -1 sec-butylphenyl-phenyl Chemical group 0.000 claims description 6
- OAGSJMRKTNUIFI-UHFFFAOYSA-N (2-tert-butylphenyl) phenyl hydrogen phosphate Chemical compound CC(C)(C)C1=CC=CC=C1OP(O)(=O)OC1=CC=CC=C1 OAGSJMRKTNUIFI-UHFFFAOYSA-N 0.000 claims description 4
- LIAWCKFOFPPVGF-UHFFFAOYSA-N 2-ethyladamantane Chemical compound C1C(C2)CC3CC1C(CC)C2C3 LIAWCKFOFPPVGF-UHFFFAOYSA-N 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 4
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 3
- LPLPPIFARDQDDL-UHFFFAOYSA-N phenyl (2-propan-2-ylphenyl) hydrogen phosphate Chemical compound CC(C)C1=CC=CC=C1OP(O)(=O)OC1=CC=CC=C1 LPLPPIFARDQDDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 19
- 238000010992 reflux Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 241001550224 Apha Species 0.000 description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 235000013824 polyphenols Nutrition 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 3
- 238000005804 alkylation reaction Methods 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-methyl-PhOH Natural products CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- CMPQUABWPXYYSH-UHFFFAOYSA-N phenyl phosphate Chemical class OP(O)(=O)OC1=CC=CC=C1 CMPQUABWPXYYSH-UHFFFAOYSA-N 0.000 description 2
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- UIYDTXYIPKRDPD-UHFFFAOYSA-N (2-phenyl-3-propan-2-ylphenyl) dihydrogen phosphate Chemical compound CC(C)C1=CC=CC(OP(O)(O)=O)=C1C1=CC=CC=C1 UIYDTXYIPKRDPD-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- HNIRQZQXIMWREQ-UHFFFAOYSA-N 2,3,4,5-tetraethylphenol Chemical class CCC1=CC(O)=C(CC)C(CC)=C1CC HNIRQZQXIMWREQ-UHFFFAOYSA-N 0.000 description 1
- IXQGCWUGDFDQMF-UHFFFAOYSA-N 2-Ethylphenol Chemical class CCC1=CC=CC=C1O IXQGCWUGDFDQMF-UHFFFAOYSA-N 0.000 description 1
- CRBJBYGJVIBWIY-UHFFFAOYSA-N 2-isopropylphenol Chemical class CC(C)C1=CC=CC=C1O CRBJBYGJVIBWIY-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical class CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002152 alkylating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- YDICVVYPXSZSFA-UHFFFAOYSA-N diphenyl propan-2-yl phosphate Chemical class C=1C=CC=CC=1OP(=O)(OC(C)C)OC1=CC=CC=C1 YDICVVYPXSZSFA-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002672 m-cresols Chemical class 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002883 o-cresols Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002931 p-cresols Chemical class 0.000 description 1
- CDTSKWPVNCJNNT-UHFFFAOYSA-N phenol;2-propan-2-ylphenol Chemical compound OC1=CC=CC=C1.CC(C)C1=CC=CC=C1O CDTSKWPVNCJNNT-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 150000003739 xylenols Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/025—Purification; Separation; Stabilisation; Desodorisation of organo-phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/09—Esters of phosphoric acids
- C07F9/12—Esters of phosphoric acids with hydroxyaryl compounds
Landscapes
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/481,161 US3945891A (en) | 1974-06-20 | 1974-06-20 | Distillation process for purification of triaryl phosphate esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2527262A1 true DE2527262A1 (de) | 1976-01-08 |
Family
ID=23910866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752527262 Ceased DE2527262A1 (de) | 1974-06-20 | 1975-06-19 | Verfahren zum reinigen von triarylphosphaten |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3945891A (enExample) |
| JP (1) | JPS5826759B2 (enExample) |
| BE (1) | BE830497A (enExample) |
| CA (1) | CA1049443A (enExample) |
| CH (1) | CH612942A5 (enExample) |
| DE (1) | DE2527262A1 (enExample) |
| FR (1) | FR2275481A1 (enExample) |
| GB (1) | GB1472834A (enExample) |
| IT (1) | IT1039139B (enExample) |
| NL (1) | NL183459C (enExample) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227972A (en) * | 1978-05-01 | 1980-10-14 | Outboard Marine Corporation | Process for recovering phosphate ester type hydraulic fluids from industrial waste liquids |
| US4305789A (en) * | 1980-03-05 | 1981-12-15 | Prahl Walter H | Energy efficient process of preparing triaryl phosphates |
| US4419189A (en) * | 1982-01-11 | 1983-12-06 | E. I. Du Pont De Nemours & Co. | Distillation of 1,4-butanediol |
| US4620024A (en) * | 1983-05-05 | 1986-10-28 | Fmc Corporation | Process for producing and recovering tributyl phosphate esters |
| JPS6112643U (ja) * | 1984-06-26 | 1986-01-24 | 日東精工株式会社 | 産業用ロボツトのピン圧入ユニツト |
| US4981615A (en) * | 1989-08-21 | 1991-01-01 | Fmc Corporation | Process for forming a stable emulsion from a triaryl phosphate reaction mixture residue |
| US5128496A (en) * | 1991-05-28 | 1992-07-07 | Fmc Corporation | Process for preparing storage-stable tris(bromophenyl)phosphates |
| US5138085A (en) * | 1991-05-28 | 1992-08-11 | Fmc Corporation | Process for purifying polybrominated triaryl phosphate esters |
| US5206404A (en) * | 1992-04-27 | 1993-04-27 | Fmc Corporation | Triaryl phosphate ester composition and process for its preparation |
| DE19615886C1 (de) * | 1996-04-22 | 1997-07-31 | Huels Chemische Werke Ag | Verfahren zur Herstellung von rohem Dimethylterephthalat |
| US6242631B1 (en) | 1998-09-21 | 2001-06-05 | Akzo Nobel Nv | Triaryl phosphate ester composition |
| US10414839B2 (en) | 2010-10-20 | 2019-09-17 | Sirrus, Inc. | Polymers including a methylene beta-ketoester and products formed therefrom |
| US9249265B1 (en) | 2014-09-08 | 2016-02-02 | Sirrus, Inc. | Emulsion polymers including one or more 1,1-disubstituted alkene compounds, emulsion methods, and polymer compositions |
| US9828324B2 (en) | 2010-10-20 | 2017-11-28 | Sirrus, Inc. | Methylene beta-diketone monomers, methods for making methylene beta-diketone monomers, polymerizable compositions and products formed therefrom |
| US9279022B1 (en) | 2014-09-08 | 2016-03-08 | Sirrus, Inc. | Solution polymers including one or more 1,1-disubstituted alkene compounds, solution polymerization methods, and polymer compositions |
| KR20140020236A (ko) | 2010-10-20 | 2014-02-18 | 바이오포믹스, 인크. | 열 전달제 존재하에서의 빠른 회수를 사용하는 메틸렌 말로네이트의 합성 |
| CA2853068A1 (en) | 2011-10-19 | 2013-04-25 | Bioformix Inc. | Multifunctional monomers, methods for making multifunctional monomers, polymerizable compositions and products formed therefrom |
| US9181365B2 (en) | 2012-03-30 | 2015-11-10 | Sirrus, Inc. | Methods for activating polymerizable compositions, polymerizable systems, and products formed thereby |
| JP6553505B2 (ja) | 2012-03-30 | 2019-07-31 | シラス・インコーポレイテッド | 複合材およびラミネート物品ならびにこれらを作製するための重合系 |
| EP2831185B1 (en) | 2012-03-30 | 2019-09-25 | Sirrus, Inc. | Ink and coating formulations and polymerizable systems for producing the same |
| US10047192B2 (en) | 2012-06-01 | 2018-08-14 | Sirrus, Inc. | Optical material and articles formed therefrom |
| KR101302555B1 (ko) * | 2012-09-26 | 2013-09-02 | 곽승민 | 방향족 인산에스테르계 화합물을 포함한 방염제 및 그의 제조방법 |
| CN105008438B (zh) | 2012-11-16 | 2019-10-22 | 拜奥福米克斯公司 | 塑料粘结体系及方法 |
| WO2014085570A1 (en) | 2012-11-30 | 2014-06-05 | Bioformix, Inc. | Composite compositions for electronics applications |
| WO2014110388A1 (en) | 2013-01-11 | 2014-07-17 | Bioformix Inc. | Method to obtain methylene malonate via bis(hydroxymethyl) malonate pathway |
| US20140271381A1 (en) * | 2013-03-18 | 2014-09-18 | Mitsubishi Heavy Industries, Ltd. | Apparatus for producing mono-lower-alkyl monoalkanolamine |
| US9315597B2 (en) | 2014-09-08 | 2016-04-19 | Sirrus, Inc. | Compositions containing 1,1-disubstituted alkene compounds for preparing polymers having enhanced glass transition temperatures |
| US9416091B1 (en) | 2015-02-04 | 2016-08-16 | Sirrus, Inc. | Catalytic transesterification of ester compounds with groups reactive under transesterification conditions |
| US10501400B2 (en) | 2015-02-04 | 2019-12-10 | Sirrus, Inc. | Heterogeneous catalytic transesterification of ester compounds with groups reactive under transesterification conditions |
| US9334430B1 (en) | 2015-05-29 | 2016-05-10 | Sirrus, Inc. | Encapsulated polymerization initiators, polymerization systems and methods using the same |
| US9217098B1 (en) | 2015-06-01 | 2015-12-22 | Sirrus, Inc. | Electroinitiated polymerization of compositions having a 1,1-disubstituted alkene compound |
| US9518001B1 (en) | 2016-05-13 | 2016-12-13 | Sirrus, Inc. | High purity 1,1-dicarbonyl substituted-1-alkenes and methods for their preparation |
| US10428177B2 (en) | 2016-06-03 | 2019-10-01 | Sirrus, Inc. | Water absorbing or water soluble polymers, intermediate compounds, and methods thereof |
| US10196481B2 (en) | 2016-06-03 | 2019-02-05 | Sirrus, Inc. | Polymer and other compounds functionalized with terminal 1,1-disubstituted alkene monomer(s) and methods thereof |
| US9617377B1 (en) | 2016-06-03 | 2017-04-11 | Sirrus, Inc. | Polyester macromers containing 1,1-dicarbonyl-substituted 1 alkenes |
| US9567475B1 (en) | 2016-06-03 | 2017-02-14 | Sirrus, Inc. | Coatings containing polyester macromers containing 1,1-dicarbonyl-substituted 1 alkenes |
| CN112827204A (zh) * | 2021-02-07 | 2021-05-25 | 吉林凯莱英医药化学有限公司 | 真空提纯装置及提纯系统 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219547A (en) * | 1963-03-13 | 1965-11-23 | Celanese Corp | Fractional distillation process for purifying triaryl phosphates |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2272193A (en) * | 1937-12-01 | 1942-02-10 | Eastman Kodak Co | Method of reclaiming plasticizers |
| US2805240A (en) * | 1953-10-29 | 1957-09-03 | Walter H Prahl | Manufacture of aryl phosphates |
-
1974
- 1974-06-20 US US05/481,161 patent/US3945891A/en not_active Expired - Lifetime
-
1975
- 1975-05-26 CA CA227,802A patent/CA1049443A/en not_active Expired
- 1975-06-11 JP JP50069793A patent/JPS5826759B2/ja not_active Expired
- 1975-06-17 CH CH785975A patent/CH612942A5/xx not_active IP Right Cessation
- 1975-06-17 GB GB2580875A patent/GB1472834A/en not_active Expired
- 1975-06-18 FR FR7519119A patent/FR2275481A1/fr active Granted
- 1975-06-19 DE DE19752527262 patent/DE2527262A1/de not_active Ceased
- 1975-06-19 NL NLAANVRAGE7507289,A patent/NL183459C/xx active Search and Examination
- 1975-06-19 IT IT24565/75A patent/IT1039139B/it active
- 1975-06-20 BE BE157559A patent/BE830497A/xx not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219547A (en) * | 1963-03-13 | 1965-11-23 | Celanese Corp | Fractional distillation process for purifying triaryl phosphates |
Also Published As
| Publication number | Publication date |
|---|---|
| CH612942A5 (enExample) | 1979-08-31 |
| NL7507289A (nl) | 1975-12-23 |
| NL183459C (nl) | 1988-11-01 |
| JPS5111746A (en) | 1976-01-30 |
| CA1049443A (en) | 1979-02-27 |
| FR2275481A1 (fr) | 1976-01-16 |
| FR2275481B1 (enExample) | 1979-03-30 |
| US3945891A (en) | 1976-03-23 |
| BE830497A (fr) | 1975-12-22 |
| JPS5826759B2 (ja) | 1983-06-04 |
| IT1039139B (it) | 1979-12-10 |
| GB1472834A (en) | 1977-05-11 |
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