BR9000641A - Processo para a producao de anidrido polimaleico,mistura de anidridos,processo para a producao de acido policarboxilico,mistura de acidos policarboxilicos ou de seus sais e processo para inibir a deposicao de compostos que forman incrustacao com agua ou um sistema aquoso - Google Patents
Processo para a producao de anidrido polimaleico,mistura de anidridos,processo para a producao de acido policarboxilico,mistura de acidos policarboxilicos ou de seus sais e processo para inibir a deposicao de compostos que forman incrustacao com agua ou um sistema aquosoInfo
- Publication number
- BR9000641A BR9000641A BR909000641A BR9000641A BR9000641A BR 9000641 A BR9000641 A BR 9000641A BR 909000641 A BR909000641 A BR 909000641A BR 9000641 A BR9000641 A BR 9000641A BR 9000641 A BR9000641 A BR 9000641A
- Authority
- BR
- Brazil
- Prior art keywords
- mixture
- production
- polymalanic
- anhydrids
- anhydride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/30—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing six-membered aromatic rings
- C07C57/38—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing six-membered aromatic rings polycyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F22/04—Anhydrides, e.g. cyclic anhydrides
- C08F22/06—Maleic anhydride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Furan Compounds (AREA)
- Polymerisation Methods In General (AREA)
- Polyethers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Polymerization Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898903330A GB8903330D0 (en) | 1989-02-14 | 1989-02-14 | Polymerisation of maleic anhydride |
GB898926586A GB8926586D0 (en) | 1989-11-24 | 1989-11-24 | Polymerisation of maleic anhydride |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9000641A true BR9000641A (pt) | 1991-01-15 |
Family
ID=26294954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR909000641A BR9000641A (pt) | 1989-02-14 | 1990-02-13 | Processo para a producao de anidrido polimaleico,mistura de anidridos,processo para a producao de acido policarboxilico,mistura de acidos policarboxilicos ou de seus sais e processo para inibir a deposicao de compostos que forman incrustacao com agua ou um sistema aquoso |
Country Status (11)
Country | Link |
---|---|
US (1) | US5077364A (pt) |
EP (1) | EP0383724B2 (pt) |
JP (1) | JP2964154B2 (pt) |
AU (1) | AU629898B2 (pt) |
BR (1) | BR9000641A (pt) |
CA (1) | CA2009850C (pt) |
DE (1) | DE59005850D1 (pt) |
ES (1) | ES2055395T3 (pt) |
IL (1) | IL93348A0 (pt) |
RU (1) | RU1836389C (pt) |
SA (1) | SA90100222B1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7110959B2 (en) * | 1996-11-12 | 2006-09-19 | Hahn-Carlson Dean W | Processing and management of transaction timing characteristics |
US6001940A (en) * | 1997-03-18 | 1999-12-14 | Rohm And Haas Company | Process for preparing anhydride polymers |
JP5686581B2 (ja) * | 2010-11-18 | 2015-03-18 | 伯東株式会社 | 水処理剤及び水処理方法 |
RU2486139C2 (ru) * | 2011-06-22 | 2013-06-27 | Государственное образовательное учреждение высшего профессионального образования Уральский государственный лесотехнический университет | Способ предотвращения солеотложений и коррозии в системах водоснабжения |
CN106809963B (zh) * | 2017-03-06 | 2020-09-22 | 王仲贤 | 无磷无钠锅炉水处理药剂 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3320216A (en) * | 1959-04-03 | 1967-05-16 | Peninsular Chem Res Inc | Saturated linear copolymers |
DE1227889B (de) * | 1963-05-09 | 1966-11-03 | Hoechst Ag | Verfahren zur Herstellung von Telomeren des Maleinsaeureanhydrids |
GB1193146A (en) * | 1966-08-22 | 1970-05-28 | Kao Corp | Method of producing Polymaleic Anhydride |
GB1369429A (en) * | 1970-11-30 | 1974-10-09 | Ciba Geigy Ag | Treatment of water or aqueous systems |
GB1411063A (en) * | 1973-02-14 | 1975-10-22 | Ciba Geigy Uk Ltd | Polymerisation process |
US4374733A (en) * | 1981-04-01 | 1983-02-22 | Betz Laboratories, Inc. | Method for treating aqueous mediums |
DE3631815A1 (de) * | 1986-09-19 | 1988-03-31 | Basf Ag | Verfahren zur herstellung von polymaleinsaeure |
DE3634956A1 (de) * | 1986-10-14 | 1988-04-21 | Huels Chemische Werke Ag | Verfahren zur herstellung von polymaleinsaeureanhydridpulver |
-
1990
- 1990-01-31 AU AU48935/90A patent/AU629898B2/en not_active Ceased
- 1990-02-06 DE DE59005850T patent/DE59005850D1/de not_active Expired - Fee Related
- 1990-02-06 ES ES90810081T patent/ES2055395T3/es not_active Expired - Lifetime
- 1990-02-06 EP EP90810081A patent/EP0383724B2/de not_active Expired - Lifetime
- 1990-02-07 US US07/476,208 patent/US5077364A/en not_active Expired - Lifetime
- 1990-02-12 IL IL93348A patent/IL93348A0/xx not_active IP Right Cessation
- 1990-02-12 CA CA002009850A patent/CA2009850C/en not_active Expired - Fee Related
- 1990-02-13 BR BR909000641A patent/BR9000641A/pt unknown
- 1990-02-13 RU SU904743077A patent/RU1836389C/ru active
- 1990-02-14 JP JP2033588A patent/JP2964154B2/ja not_active Expired - Lifetime
- 1990-05-14 SA SA90100222A patent/SA90100222B1/ar unknown
Also Published As
Publication number | Publication date |
---|---|
AU629898B2 (en) | 1992-10-15 |
SA90100222B1 (ar) | 2004-02-15 |
AU4893590A (en) | 1990-08-23 |
CA2009850C (en) | 2000-04-04 |
IL93348A0 (en) | 1990-11-29 |
EP0383724B2 (de) | 1999-03-17 |
JP2964154B2 (ja) | 1999-10-18 |
EP0383724A3 (en) | 1990-12-19 |
JPH02247206A (ja) | 1990-10-03 |
EP0383724A2 (de) | 1990-08-22 |
ES2055395T3 (es) | 1994-08-16 |
RU1836389C (ru) | 1993-08-23 |
EP0383724B1 (de) | 1994-06-01 |
US5077364A (en) | 1991-12-31 |
DE59005850D1 (de) | 1994-07-07 |
CA2009850A1 (en) | 1990-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR8406666A (pt) | Processo para a preparacao de esteres de acido hidroxifenilcarboxilico estericamente impedidos | |
BR9101691A (pt) | Emprego de dimetilamidas do acido alquilcarboxilico e processo para evitar a cristalizacao de substancias ativas | |
FI882747A0 (fi) | Menetelmä ioninvaihtohartsien valmistamiseksi joihin on sidottu kinolonikarboksyylihappojohdannaisia | |
BR8602110A (pt) | Processo para a preparacao de um sal de acido carboxilico,processo para a preparacao de um acido carboxilico e processo para a preparacao de acido azetidina-3-carboxilico ou sais do mesmo | |
BR9000641A (pt) | Processo para a producao de anidrido polimaleico,mistura de anidridos,processo para a producao de acido policarboxilico,mistura de acidos policarboxilicos ou de seus sais e processo para inibir a deposicao de compostos que forman incrustacao com agua ou um sistema aquoso | |
PT83122B (pt) | Processo para a preparacao de uma composicao detergente nao ionica liquida, nao aquosa, isenta de fosfato ou com baixo teor em fosfato, para lavagem de roupa, contendo um sal de metal alcalino de acido policarboxilico inferior | |
PT80837B (pt) | Processo para a preparacao de composicoes de combinacao de pirimido-pirimidina e acido o-acetilsalicilico ou dos seus sais farmacologicamente aceitaveis | |
BR8306645A (pt) | Processo para preparar produtos de adicao de monoeter e polieter poliol contendo acido caboxilico;produto de adicao de monoeter ou polieter poliol contendo acido carboxilico | |
BR8105606A (pt) | Processo para preparacao de sal de calcio do acido de mhba(alfa-hidroxi-gama-metilmercaptobutirico) | |
PT80621B (pt) | Processo para a preparacao de derivados ester de acido carboxilico de desglicoteicoplanina | |
PT83134B (pt) | Processo para a preparacao de sais de adicao de acido sulfurico | |
IT1139455B (it) | Processo per la preparazione di acidi alfa-arilpropionici e loro sali alcalini | |
BR8204575A (pt) | Processo para a co-producao de acido carboxilicos e esteres de acidos carboxilicos | |
PT84073B (pt) | Processo para a preparacao de lactamas aminoglicosidicas do acido nor-colanico | |
IT8049795A0 (it) | Processo per preparare anidridi di acido carbossilico | |
BR8501799A (pt) | Processo para a preparacao de esteres de pentaeritrita de derivados de acido fosforoso | |
BR8601385A (pt) | Processo para a preparacao de metil ester de alfa-l-aspartil-l-fenilalanina ou seu cloridrato | |
BR7902223A (pt) | Processo para a preparacao de anidridos de acido carboxilico | |
BR8602486A (pt) | Processo para a preparacao de sais do acido 4,4'-dinitroestilben-2,2'-dissulfonico | |
PT90561A (pt) | Processo para a preparacao de uma tinta de revestimento para exteriores, contendo um sal de um acido organico alifatico substituido ou de uma 1,3 dicetona ou um acido hidroxamico alifatico | |
BR8801311A (pt) | Processo para a preparacao de um acido aril-diazida-sulfonico ou seu sal bem como processo para a preparacao de uma aril-diazida | |
BR8403914A (pt) | Processo para producao de analogo de hidroximetionina ou de derivado do mesmo,processo para preparacao de ester de acido carboxilico e processo para preparacao de composto | |
BR8706572A (pt) | Processo para a preparacao de esteres de acido quinolono carboxilico | |
BR8800049A (pt) | Carbo-di-imida multifuncional ramificada mono-dispersada;emulsao aquosa;composicao que pode ter ligacoes cruzadas processo para a formacao de ligacoes cruzadas em uma resina de emulsao contendo carboxila ou em uma resina organica carboxilada neutralizada soluvel em agua;amina polifuncional,ureia polifuncional ou tio-ureia polifuncional,processo para a formacao de ligacoes cruzadas em uma resina de solucao carboxilida | |
BR8903905A (pt) | Acido piridino sulfinico substituido com aminocarbonila composto ou seus sais;processo para a preparacao de acido piridino sulfinico;e processo para a preparacao de um composto e seus sais |