MX166895B - Procedimiento para purificar organofosfitos terciarios - Google Patents

Procedimiento para purificar organofosfitos terciarios

Info

Publication number
MX166895B
MX166895B MX010970A MX1097088A MX166895B MX 166895 B MX166895 B MX 166895B MX 010970 A MX010970 A MX 010970A MX 1097088 A MX1097088 A MX 1097088A MX 166895 B MX166895 B MX 166895B
Authority
MX
Mexico
Prior art keywords
organophosphite
tertiary
purify
procedure
organophosphites
Prior art date
Application number
MX010970A
Other languages
English (en)
Inventor
John Michael Maher
Ernst Billig
David Robert Bryant
Original Assignee
Union Carbide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21867504&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX166895(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of MX166895B publication Critical patent/MX166895B/es

Links

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
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
    • C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
    • 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
    • C07F9/141—Esters of phosphorous acids
    • 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
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574—Esters of oxyacids of phosphorus
    • C07F9/65744—Esters of oxyacids of phosphorus condensed with carbocyclic or heterocyclic rings or ring systems
    • 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
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574—Esters of oxyacids of phosphorus
    • C07F9/65746—Esters of oxyacids of phosphorus the molecule containing more than one cyclic phosphorus atom
    • 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
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6578—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and sulfur atoms with or without oxygen atoms, as ring hetero atoms

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)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

La presente invención se refiere a un procedimiento para separar organofosfito secundario a partir de organofosfito terciario, que comprende: (1) tratar una composición que consiste esencialmente de organofosfitos terciario y secundario disueltos en un solvente orgánico, con agua añadida y base de Lewis, para convertir selectivamente el organofosfito secundario en una sal de organofosfito primario; y (2) separar y recuperar el organofosfito terciario de la sal.
MX010970A 1987-03-31 1988-03-30 Procedimiento para purificar organofosfitos terciarios MX166895B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/032,906 US4835299A (en) 1987-03-31 1987-03-31 Process for purifying tertiary organophosphites

Publications (1)

Publication Number Publication Date
MX166895B true MX166895B (es) 1993-02-11

Family

ID=21867504

Family Applications (1)

Application Number Title Priority Date Filing Date
MX010970A MX166895B (es) 1987-03-31 1988-03-30 Procedimiento para purificar organofosfitos terciarios

Country Status (11)

Country Link
US (1) US4835299A (es)
EP (1) EP0285136B2 (es)
JP (1) JPH064660B2 (es)
KR (1) KR930005259B1 (es)
CN (1) CN1019396B (es)
CA (1) CA1314053C (es)
DE (1) DE3886577T3 (es)
ES (1) ES2046996T3 (es)
IN (1) IN171049B (es)
MX (1) MX166895B (es)
PL (1) PL152658B1 (es)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW213465B (es) * 1991-06-11 1993-09-21 Mitsubishi Chemicals Co Ltd
US5292785A (en) * 1992-05-05 1994-03-08 Ciba-Geigy Corporation Bis-phosphite stabilized compositions
US5391799A (en) * 1992-05-05 1995-02-21 Ciba-Geigy Corporation Process for the preparation 6-chloro-2,4,8,10-tetra-butyldibenzo[d,f][1,3,2]dioxaphoshepin
US5310889A (en) * 1992-07-22 1994-05-10 Ciba-Geigy Corporation Carbohydrate substituted dibenzo(d,f)(1,3,2)dioxaphosphepin stabilizers
US5310890A (en) * 1992-07-22 1994-05-10 Ciba-Geigy Corporation Carbohydrate substituted dibenzoi(d,g)(1,3,2)dioxaphosphocin stabilizers
US5744650A (en) * 1995-12-06 1998-04-28 Union Carbide Chemicals & Plastics Technology Corporation Metal-Ligand complex catalyzed processes
US5789625A (en) * 1995-12-06 1998-08-04 Union Carbide Chemicals & Plastics Technology Corporation Metal-ligand complex catalyzed processes
US5892127A (en) * 1996-04-24 1999-04-06 Union Carbide Chemicals & Plastics Technology Corporation Processes for producing 1,6-hexanedials and derivatives
TW482765B (en) * 1996-08-05 2002-04-11 Sumitomo Chemical Co Phosphites, process for producing the same and their use
US5917095A (en) * 1996-11-26 1999-06-29 Union Carbide Chemicals & Plastics Technology Corporation Metal-ligand complex catalyzed processes
US5892119A (en) * 1996-11-26 1999-04-06 Union Carbide Chemicals & Plastics Technology Corporation Metal-ligand complex catalyzed processes
US6291717B1 (en) 1998-12-10 2001-09-18 Mitsubishi Chemical Corporation Process for producing aldehyde
DE10148551A1 (de) * 2001-10-01 2003-04-10 Bayer Ag Chirale Monophosphorverbindungen
DE10220801A1 (de) * 2002-05-10 2003-11-20 Oxeno Olefinchemie Gmbh Verfahren zur Rhodium-katalysierten Hydroformylierung von Olefinen unter Reduzierung der Rhodiumverluste
WO2004020380A1 (de) * 2002-08-31 2004-03-11 Oxeno Olefinchemie Gmbh Verfahren zur hydroformylierung von olefinisch ungesättigten verbindungen, insbesondere olefinen in gegenwart cyclischer kohlensäureester
KR101035146B1 (ko) 2006-11-06 2011-05-17 주식회사 엘지화학 옥소 공정에서 재결정화 과정에 의한 촉매 리간드 산화물의 분리 방법
MY146608A (en) * 2007-03-20 2012-09-14 Dow Technology Investments Llc Hydroformylation process with improved control over product isomers
US8304583B2 (en) 2007-09-07 2012-11-06 Dow Global Technologies Llc Hydrogenation of aliphatic dialdehydes to aliphatic diols
US7872157B2 (en) * 2007-12-26 2011-01-18 Eastman Chemical Company Phosphonite containing catalysts for hydroformylation processes
US7872156B2 (en) * 2007-12-26 2011-01-18 Eastman Chemical Company Fluorophosphite containing catalysts for hydroformylation processes
CN102143933B (zh) 2008-07-03 2014-09-17 陶氏技术投资有限公司 控制再循环催化剂料流中重物质的方法
JP5670909B2 (ja) 2008-11-14 2015-02-18 ユニバーシティ・オブ・カンザス ポリマーに担持された遷移金属触媒錯体、及びその使用方法
US7928267B1 (en) * 2009-06-22 2011-04-19 Eastman Chemical Company Phosphite containing catalysts for hydroformylation processes
CN102574878A (zh) 2009-10-16 2012-07-11 陶氏技术投资有限责任公司 气相加氢甲酰化方法
CA2784943C (en) 2009-12-22 2016-09-06 Dow Technology Investments Llc Controlling the normal:iso aldehyde ratio in a mixed ligand hydroformylation process by controlling the syngas partial pressure
EP2516373B2 (en) 2009-12-22 2020-08-12 Dow Technology Investments LLC Controlling the normal : iso aldehyde ratio in a mixed ligand hydroformylation process
US8664451B2 (en) 2009-12-22 2014-03-04 Dow Technology Investments Llc Controlling the normal:ISO aldehyde ratio in a mixed ligand hydroformylation process by controlling the olefin partial pressure
EP2624953B1 (en) 2010-10-05 2018-10-24 Dow Technology Investments LLC Hydroformylation process
DE102011002639A1 (de) * 2011-01-13 2012-07-19 Evonik Oxeno Gmbh Verfahren zur Herstellung von Biphephos
SA112330271B1 (ar) 2011-04-18 2015-02-09 داو تكنولوجى انفستمنتس ال ال سى تخفيف التلوث في عمليات هيدروفورملة عن طريق إضافة الماء
CN104093729B (zh) * 2011-10-31 2016-09-07 陶氏技术投资有限责任公司 防止多亚磷酸酯配体生产中的溶剂结晶
US9108988B2 (en) 2011-12-30 2015-08-18 Basf Se Method of purifying organic diphosphite compounds
CN104159907B (zh) 2011-12-30 2016-05-25 巴斯夫欧洲公司 制备6-氯二苯并[d,f][1,3,2]二氧杂磷杂庚环的方法
US8796481B2 (en) 2011-12-30 2014-08-05 Basf Se Crystalline solvate and non-solvated forms of 6,6′-[[3,3′,5,5′-tetrakis(1,1-dimethylethyl)-[1,1′biphenyl]-2,2′-diyl]bis(oxy)]bis-dibenzo [d,f] [1,3,2]-dioxaphosphepine
WO2013098368A1 (de) 2011-12-30 2013-07-04 Basf Se Verfahren zur reinigung von organischen diphosphitverbindungen
MX361677B (es) 2011-12-30 2018-12-13 Basf Se Solvato cristalino y las formas no solvatadas de 6,6'-[[3,3',5,5'-tetraquis (1, 1-dimetiletil)-[1, 1'-bifenil] -2,2'-diil] bis (oxi)] bis-dibenzo [d, f] [1,3,2]- dioxafosfepina.
US8841474B2 (en) 2011-12-30 2014-09-23 Basf Se Process for preparing 6-chlorodibenzo[D,F][1,3,2]dioxaphosphepin
MY185096A (en) 2012-03-07 2021-04-30 Basf Se Method for thermal integration in the hydrogenation and distillation of c3-c20 aldehydes
US8889917B2 (en) 2012-04-12 2014-11-18 Basf Se Method of supplementing the catalyst in continuous hydroformylation
KR102104824B1 (ko) 2012-04-12 2020-04-28 바스프 에스이 연속적 히드로포르밀화에서 촉매를 보충하는 방법
MX358981B (es) 2012-06-04 2018-09-11 Dow Technology Investments Llc Proceso de hidroformilacion.
JP6339572B2 (ja) 2012-08-29 2018-06-06 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー 触媒製造方法
JP6068652B2 (ja) 2012-09-25 2017-01-25 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー 分解に対してホスフィット配位子を安定化するためのプロセス
EP2928855A1 (en) 2012-12-06 2015-10-14 Dow Technology Investments LLC Hydroformylation process
CN104725170B (zh) 2013-12-19 2019-08-23 陶氏技术投资有限责任公司 加氢甲酰化方法
BR112016013001B1 (pt) 2013-12-19 2020-12-29 Dow Technology Investments Llc processo de hidroformilação
DE102014201756A1 (de) 2014-01-31 2015-08-06 Evonik Degussa Gmbh Reinigung chlorverschmutzter Organophosphorverbindungen
DE102014202500A1 (de) 2014-02-12 2015-08-13 Evonik Degussa Gmbh Verfahren zur Reduzierung des Chlorgehalts von Organobisphosphiten
US20170015816A1 (en) * 2014-03-12 2017-01-19 Sumitomo Chemical Company, Limited Processing stabilizer
RU2674698C1 (ru) 2014-03-31 2018-12-12 Дау Текнолоджи Инвестментс Ллк Способ гидроформилирования
US10501486B2 (en) 2014-05-14 2019-12-10 Dow Technology Investments Llc Stabilized organophosphorous compounds
CN106414467A (zh) * 2014-05-20 2017-02-15 赢创德固赛有限公司 使用二甲基氨基丁烷、三乙胺或三乙醇胺降低有机单亚磷酸酯的氯含量的方法
MY184826A (en) 2014-12-04 2021-04-24 Dow Technology Investments Llc Hydroformylation process
US10487020B2 (en) 2015-07-28 2019-11-26 Dow Technology Investments Llc Method for the preparation of a stabilized organophosphorous compound solution
EP3147291A1 (de) 2015-09-28 2017-03-29 Evonik Degussa GmbH Verfahren zur reduzierung des chlorgehalts von organotetraphosphiten
TWI709568B (zh) 2015-09-30 2020-11-11 美商陶氏科技投資公司 用於製造有機磷化合物的方法
TWI709566B (zh) 2015-09-30 2020-11-11 美商陶氏科技投資公司 用於製造有機磷化合物的方法
JP6908602B2 (ja) 2015-11-10 2021-07-28 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー アルデヒドの生成プロセス
EP3176174A1 (de) 2015-12-03 2017-06-07 Evonik Degussa GmbH Verfahren zur reduzierung des chlorgehalts von organotetraphosphiten
BR112018016320B1 (pt) 2016-02-11 2022-07-12 Dow Technology Investments Llc Processo para converter olefinas em álcoois, éteres ou combinações dos mesmos
JP7356419B2 (ja) 2017-10-25 2023-10-04 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー ヒドロホルミル化プロセス中に形成されるアルデヒド化合物を含む溶液中の重質形成を低減する方法
EP3710161A1 (en) 2017-11-13 2020-09-23 Dow Technology Investments LLC Processes for recovery of rhodium from a hydroformylation process
CA3120660A1 (en) 2018-11-29 2020-06-04 Dow Technology Investments Llc Hydroformylation process
JP2022539376A (ja) 2019-06-27 2022-09-08 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー 貴金属回収のためのヒドロホルミル化プロセスから溶液を調製するプロセス
TW202126385A (zh) 2019-11-05 2021-07-16 美商陶氏科技投資有限公司 自氫甲醯化製程回收銠之方法
WO2021126421A1 (en) 2019-12-19 2021-06-24 Dow Technology Investments Llc Processes for preparing isoprene and mono-olefins comprising at least six carbon atoms
CN114075244B (zh) * 2020-08-18 2024-06-04 中国石油化工股份有限公司 一种双齿亚磷酸酯及其纯化方法和应用
EP4011891A1 (de) 2020-12-09 2022-06-15 Covestro Deutschland AG Verfahren zur herstellung von flammgeschützten pur/pir-hartschaumstoffen
US20230406801A1 (en) 2020-12-14 2023-12-21 Dow Technology Investments Llc Processes to improve catalytic metal accountability in hydroformylation processes
WO2023086718A1 (en) 2021-11-11 2023-05-19 Dow Technology Investments Llc Processes for recovering rhodium from hydroformylation processes
CN115677757B (zh) * 2022-11-21 2023-07-25 江苏极易新材料有限公司 一种低氯离子含量的三(2,4-二叔丁基苯基)亚磷酸酯提纯方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA694472A (en) * 1964-09-15 E. Jones William Selective extraction process
US3356775A (en) * 1963-07-31 1967-12-05 Monsanto Co Purification of triaryl phosphates
US3415906A (en) * 1964-05-29 1968-12-10 Hooker Chemical Corp Phosphite phospholane and phosphorinane compounds
US3511880A (en) * 1966-09-16 1970-05-12 Union Oil Co Hydrocarbonylation process
US3527809A (en) * 1967-08-03 1970-09-08 Union Carbide Corp Hydroformylation process
SU389100A1 (ru) * 1971-05-24 1973-07-05 Способ разделения моно- и диалкиловых эфиров фосфорной кислоты
FR2259104B1 (es) * 1974-01-25 1976-11-26 Rhone Poulenc Ind
US3876395A (en) * 1974-03-07 1975-04-08 Union Carbide Corp Method for the adsorption of sulfur dioxide
US3917469A (en) * 1974-07-24 1975-11-04 Union Carbide Corp Method for the removal of sulfur dioxide from gas mixtures
US4351759A (en) * 1978-01-03 1982-09-28 Ciba-Geigy Corporation Alkylated 2,2'-biphenylene phosphites and stabilized compositions
DE2837027A1 (de) * 1978-08-24 1980-03-06 Bayer Ag Neue phosphorigsaeureester und ihre verwendung zur stabilisierung von polyamiden
US4258215A (en) * 1979-08-29 1981-03-24 Eastman Kodak Company Hydroformylation process
ATE28183T1 (de) * 1982-06-11 1987-07-15 Davy Mckee London Hydroformylierungsverfahren.
DE3371067D1 (en) * 1982-06-11 1987-05-27 Davy Mckee London Hydroformylation process
US4532085A (en) * 1983-07-05 1985-07-30 Stauffer Chemical Company Phosphate ester recovery
GB8334359D0 (en) * 1983-12-23 1984-02-01 Davy Mckee Ltd Process
SU1142476A1 (ru) * 1984-01-04 1985-02-28 Научно-Исследовательский Институт Физико-Химических Проблем Белорусского Ордена Трудового Красного Знамени Государственного Университета Им.В.И.Ленина Способ очистки тригексилфосфата от примесей дигексил- и моногексилфосфорных кислот
US4599206A (en) * 1984-02-17 1986-07-08 Union Carbide Corporation Transition metal complex catalyzed reactions
US4737588A (en) * 1984-12-28 1988-04-12 Union Carbide Corporation Transition metal complex catalyzed reactions
US4748261A (en) * 1985-09-05 1988-05-31 Union Carbide Corporation Bis-phosphite compounds
US4668651A (en) * 1985-09-05 1987-05-26 Union Carbide Corporation Transition metal complex catalyzed processes
SU1310401A1 (ru) * 1985-09-11 1987-05-15 Научно-исследовательский институт физико-химических проблем Белорусского государственного университета им.В.И.Ленина Способ очистки тригексилфосфата от примесей моно- и дигексилфосфорных кислот
SU1315455A1 (ru) * 1985-10-29 1987-06-07 Белорусский государственный университет им.В.И.Ленина Способ очистки тригексилфосфата от гексилового спирта и примесей моно- и дигексилфосфорных кислот
US4774361A (en) * 1986-05-20 1988-09-27 Union Carbide Corporation Transition metal complex catalyzed reactions

Also Published As

Publication number Publication date
EP0285136A3 (en) 1989-11-23
EP0285136A2 (en) 1988-10-05
JPH064660B2 (ja) 1994-01-19
ES2046996T3 (es) 1994-02-16
US4835299A (en) 1989-05-30
PL152658B1 (en) 1991-01-31
CN1019396B (zh) 1992-12-09
DE3886577T2 (de) 1994-04-28
JPH02231497A (ja) 1990-09-13
EP0285136B2 (en) 1999-10-20
DE3886577T3 (de) 2000-01-13
IN171049B (es) 1992-07-04
EP0285136B1 (en) 1993-12-29
KR930005259B1 (ko) 1993-06-17
KR880011179A (ko) 1988-10-27
CN88102776A (zh) 1988-11-23
DE3886577D1 (de) 1994-02-10
CA1314053C (en) 1993-03-02
PL271548A1 (en) 1989-01-23

Similar Documents

Publication Publication Date Title
MX166895B (es) Procedimiento para purificar organofosfitos terciarios
CU22939A3 (es) Proceso para la síntesis de 1,3 dioles
ATE99656T1 (de) Ferritinanaloge.
EA199900301A2 (ru) Замещенные трициклические соединения
YU187683A (en) Process for the renewal of a hydroformylation ctalyst comprising radium dssolved in water
AR247403A1 (es) Procedimiento para la preparacion de nuevos acetilen, ciano y alenil derivados de adenosina, utiles como agentes antivirales y antineoplasicos
ES2109570T3 (es) Proceso mejorado para el tratamiento de aguas residuales mediante la retirada de sulfato sodico.
PE103799A1 (es) Procedimiento de purificacion de mesilato de alatrofloxacino
ES2128554T3 (es) Nuevos derivados del acido glutamico, procedimiento para su preparacion y su utilizacion como medicamentos para el aumento de la memoria y aprendizaje.
JPS51146758A (en) Process for treating a drain water containing polyvinyl alcohol
BR8803402A (pt) Poliisocianatos aromaticos,processo para a sua preparacao e utilizacao
BR8802018A (pt) Processo de eliminacao de radioatividade de uma solucao aquosa que inclui um nitrato de radio
MX9303640A (es) Proceso mejorado para la produccion de anhidrido ftalico.
ES2085923T3 (es) Procedimiento para la preparacion de poliamidas aromaticas con elevada estabilidad frente a la hidrolisis.
JPS5412307A (en) Purification of 3-methyl-3-methoxybutanol
ES2034252T3 (es) Procedimiento para la preparacion de compuestos macrolidos.
ES2164879T3 (es) Proceso para separacion de iones cinc a partir de composiciones de autodeposicion.
JPS51117196A (en) Method for regeneration of the waste solution of the caustic soda cont aining aluminum
JPS5212125A (en) Process for preparation of oligoester (meth)acrylate emulsion
DK123089D0 (da) Fremgangsmaade til adskillese af alpha-l-asparagyl-l-phenylalaninmethylester fra en oploesning
JPS5253786A (en) Al-cont. adsorbent
ES2009460A6 (es) Procedimiento para la purificacion de 1,1-bis (clorofenil)-2,2,2-tricloroetanol tecnico.
ES2052253T3 (es) Proceso para recuperar el germanio.
JPS5252466A (en) Method for biological denitrification of wastewater
SU715497A1 (ru) Способ очистки сточных вод от фенолов