RU96123748A - METHOD FOR REMOVING A POLLUTING SUBSTANCE FROM WATER OR A WET SOLID - Google Patents

METHOD FOR REMOVING A POLLUTING SUBSTANCE FROM WATER OR A WET SOLID

Info

Publication number
RU96123748A
RU96123748A RU96123748/25A RU96123748A RU96123748A RU 96123748 A RU96123748 A RU 96123748A RU 96123748/25 A RU96123748/25 A RU 96123748/25A RU 96123748 A RU96123748 A RU 96123748A RU 96123748 A RU96123748 A RU 96123748A
Authority
RU
Russia
Prior art keywords
prepolymer
substance
water
polyhydric alcohol
parts
Prior art date
Application number
RU96123748/25A
Other languages
Russian (ru)
Other versions
RU2107033C1 (en
Inventor
Франсис Кассиди Эдвард
Йозеф Блейс Герхард
Original Assignee
Империал Кемикал Индастриз ПЛС
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
Priority claimed from GB9409546A external-priority patent/GB9409546D0/en
Application filed by Империал Кемикал Индастриз ПЛС filed Critical Империал Кемикал Индастриз ПЛС
Application granted granted Critical
Publication of RU2107033C1 publication Critical patent/RU2107033C1/en
Publication of RU96123748A publication Critical patent/RU96123748A/en

Links

Claims (5)

1. Способ удаления нежелательного вещества из нужного вещества в присутствии воды путем приведения изоцианатсодержащего преполимера в контакт с этими веществами, давая возможность преполимеру прореагировать с по меньшей мере частью воды с целью образования гибкой пены и удаления полученной пены из нужного вещества, при этом преполимер содержит NCO 5 - 10 мас.% и является продуктом реакции, полученным реакцией избыточного количества полиметиленполифениленполиизоцианата или дифенилметандиизоцианата, включающего по меньшей мере 25 мас.% 4,4'-дифенилметандиизоцианата или жидкой формы этого соединения с полиэфирным многоатомным спиртом со средним номинальным значением гидроксильной функциональности 2 - 4, средним показателем эквивалентной массы гидроксильных групп 500 - 3000 и содержанием оксиэтилена по меньшей мере 50 мас.%, при этом количество используемого преполимера составляет 5 - 200 мас.ч. на 100 мас.ч. нежелательного вещества.1. A method for removing an undesired substance from a desired substance in the presence of water by contacting an isocyanate-containing prepolymer with these substances, allowing the prepolymer to react with at least a portion of the water to form a flexible foam and remove the resulting foam from the desired substance, wherein the prepolymer contains NCO 5 to 10 wt.% And is the reaction product obtained by the reaction of an excess of polymethylene polyphenylene polyisocyanate or diphenylmethanediisocyanate, comprising at least 25 wt.% 4,4'-d a phenylmethanediisocyanate or a liquid form of this compound with a polyester polyhydric alcohol with an average nominal value of hydroxyl functionality of 2 to 4, an average equivalent weight of hydroxyl groups of 500 to 3000 and an oxyethylene content of at least 50 wt.%, while the amount of prepolymer used is 5 to 200 wt. .h. per 100 parts by weight unwanted substance. 2. Способ по п.1, по которому количество преполимера составляет 10 - 100 мас.ч. на 100 мас.ч. нежелательного вещества. 2. The method according to claim 1, in which the amount of prepolymer is 10 to 100 parts by weight per 100 parts by weight unwanted substance. 3. Способ по пп.1 и 2, по которому полиизоцианат включает по меньшей мере 85 мас.% 4,4'-дифенилметандиизоцианата или жидкую форму этого соединения. 3. The method according to claims 1 and 2, in which the polyisocyanate comprises at least 85 wt.% 4,4'-diphenylmethanediisocyanate or a liquid form of this compound. 4. Способ по пп.1 - 2, по которому содержание оксиэтилена в многоатомном спирте составляет 50 - 85 мас.%. 4. The method according to claims 1 to 2, in which the content of hydroxyethylene in polyhydric alcohol is 50 to 85 wt.%. 5. Способ по пп.1 -4, по которому многоатомный спирт является статистическим полиоксиэтиленполиоксипропиленовым многоатомным спиртом. 5. The method according to claims 1 to 4, wherein the polyhydric alcohol is a random polyoxyethylene polyoxypropylene polyol.
RU96123748A 1994-05-12 1995-04-21 Method of removing polluting substances from water or wet solid RU2107033C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9409546A GB9409546D0 (en) 1994-05-12 1994-05-12 Process for removing unwanted material from wanted material
GB9409546.0 1994-05-12
PCT/EP1995/001517 WO1995031402A1 (en) 1994-05-12 1995-04-21 Process for removing polluting material from water or wet solid matter

Publications (2)

Publication Number Publication Date
RU2107033C1 RU2107033C1 (en) 1998-03-20
RU96123748A true RU96123748A (en) 1998-05-27

Family

ID=10755035

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96123748A RU2107033C1 (en) 1994-05-12 1995-04-21 Method of removing polluting substances from water or wet solid

Country Status (26)

Country Link
US (1) US5504124A (en)
EP (1) EP0759012B1 (en)
JP (1) JP3335635B2 (en)
KR (2) KR100364653B1 (en)
CN (1) CN1098216C (en)
AT (1) ATE167167T1 (en)
AU (1) AU684636B2 (en)
BG (1) BG61761B1 (en)
BR (1) BR9507626A (en)
CZ (1) CZ287937B6 (en)
DE (1) DE69502951T2 (en)
DK (1) DK0759012T3 (en)
ES (1) ES2117419T3 (en)
FI (1) FI964521A7 (en)
GB (1) GB9409546D0 (en)
HK (1) HK1010455A1 (en)
HU (1) HU220545B1 (en)
MY (1) MY115954A (en)
NO (1) NO312093B1 (en)
NZ (1) NZ284810A (en)
PL (1) PL178567B1 (en)
RO (1) RO118283B1 (en)
RU (1) RU2107033C1 (en)
SI (1) SI9520056B (en)
UA (1) UA39900C2 (en)
WO (1) WO1995031402A1 (en)

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US6130264A (en) 1994-10-06 2000-10-10 Xomed Surgical Products, Inc. Synthetic sponge and surgical spear comprising synthetic sponge
US6080092A (en) 1994-10-06 2000-06-27 Xomed Surgical Products, Inc. Industrial cleaning sponge
US6004402A (en) * 1994-10-06 1999-12-21 Xomed Surgical Products, Inc. Method of cleaning silicon material with a sponge
UA43899C2 (en) * 1995-06-27 2002-01-15 Хантсмен Ай Сі Ай Кемікалз Ллс METHOD OF REMOVING POLLUTION FROM THE MATERIAL
RU2188072C1 (en) * 2001-07-04 2002-08-27 Закрытое акционерное общество "Блокформ" Polyurethane sorbent for hydrocarbons and a method for cleaning water and solid surfaces from hydrocarbon pollutants using this sorbent
US7459488B2 (en) 2005-03-03 2008-12-02 Polyfoam Products, Inc. Composition and process for recovery of spilled hydrocarbons from aqueous environments
KR100965801B1 (en) 2008-01-04 2010-06-24 유미시스템 주식회사 Detachable upper and insole comprising the same
WO2009088182A2 (en) * 2008-01-04 2009-07-16 Umi System Co. Attachable and detachable upper, and an insole comprising the same
KR100919137B1 (en) 2008-08-21 2009-09-25 주식회사 비엠시스 Shoe insole
DE102009000578A1 (en) 2009-02-03 2010-08-12 Alexander Noskow Polyurethane adsorbent, useful for purifying or removing hydrocarbons from aqueous environments or solid surfaces and an anti-scratch material, comprises a polyol compound, an aromatic isocyanate compound and water
CN102069037B (en) * 2011-01-20 2012-09-05 西安建筑科技大学 Composite hydrocarbon oil molybdenum flotation collecting agent and preparation method thereof
KR101475725B1 (en) 2012-06-26 2015-01-29 (주)비발 A soft polyurethan gel and A method manufacturing it

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US3490225A (en) * 1966-12-27 1970-01-20 Edwards Co System for setting secondary clocks
GB1170959A (en) * 1967-03-31 1969-11-19 Ici Ltd Separation Process.
DE1944679A1 (en) * 1969-09-03 1971-03-04 Collo Rheincollodium Koeln Gmb Clearing oil pollution with foam material - binding the oil
US3977969A (en) * 1971-10-26 1976-08-31 The United States Of America As Represented By The Secretary Of The Navy Containment and riddance of oil spills
DE3315596A1 (en) * 1983-04-29 1984-10-31 Basf Ag, 6700 Ludwigshafen Use of polyurethane prepolymers as flocculating agents
JPS63215789A (en) * 1987-03-03 1988-09-08 New Japan Chem Co Ltd Composition for recovery of organic material
DE3839570A1 (en) * 1988-11-24 1990-05-31 Bayer Ag METHOD FOR REMOVING AREA OF DISTRIBUTED HYDROCARBONS, ESPECIALLY OIL RESIDUES
DE3927317A1 (en) * 1989-08-18 1991-02-21 Bayer Ag METHOD FOR PROCESSING TRUE WASTEWATER
DE4040022A1 (en) * 1990-12-14 1992-06-17 Bayer Ag Splitting of water-in-oil emulsions
ES2102472T3 (en) * 1991-12-17 1997-08-01 Ici Plc POLYURETHANE FOAMS.
JPH05329951A (en) * 1992-06-01 1993-12-14 Toyo Tire & Rubber Co Ltd Urethane foam having excellent oil recovery property and manufacture thereof
KR100216494B1 (en) * 1993-03-01 1999-08-16 로날드 제이. 알레인, 지이 엠 브랜논, 더블유 이 패리 Recovery of oil from waste oil fluid

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