公开(公告)号：EP0823949A1

公开(公告)日：1998-02-18

申请号：EP96913817.0

申请日：1996-04-19

申请人： BetzDearborn Inc

发明人： SUTMAN, Frank, J.

IPC分类号： D21C5

CPC分类号： D21C5/027 ,  Y02W30/648

摘要： A process and composition for deinking waste paper is disclosed. The process comprises administering an alcohol, randomly alkoxylated with a mixture of alkylene oxides to form a surfactant, to a sample of waste paper for which treatment is desired. The surfactant enhances the aggregation and densification of electrostatic toner particles, while promoting foaming in the aqueous slurry.

公开(公告)号：EP0820544A1

公开(公告)日：1998-01-28

申请号：EP96910525.0

申请日：1996-03-25

申请人： BetzDearborn Inc

发明人： NGUYEN, Duy, T.

IPC分类号： B01F17 ,  D21C5 ,  D21C9 ,  D21F1 ,  D21H17 ,  D21H21

CPC分类号： D21H21/02 ,  D21C5/022 ,  D21C9/008 ,  D21C9/086 ,  D21F1/30 ,  D21H17/36 ,  D21H17/375 ,  D21H17/455 ,  D21H17/54 ,  D21H17/72 ,  Y02W30/648 ,  Y10S162/04

摘要： Compositions and methods for inhibiting the deposition of organic contaminants from pulp on the surfaces of pulp and papermaking systems are disclosed. The composition is a combination of a polyvinyl alcohol having 50 to 100 % hydrolysis and a high molecular weight gelatin having a molecular weight of about 100,000 or higher and is added to the pulp or sprayed onto the surfaces of the pulp and papermaking system. In a preferred embodiment, synergism is demonstrated by an 8 to 1 weight ratio of polyvinyl alcohol to high molecular weight gelatin.

公开(公告)号：EP0815288A1

公开(公告)日：1998-01-07

申请号：EP96908852.0

申请日：1996-03-18

申请人： BetzDearborn Inc

发明人： REICHGOTT, David, M. ,  ANDERSON, Sydia, B. ,  CADY, Michael, A. ,  MAY, Roger, C. ,  MONINO, Anita, G.

IPC分类号： C07D249 ,  C23F11

CPC分类号： C23F11/10 ,  C07D249/18 ,  C23F11/08 ,  C23F11/149

摘要： The use of N-halo-azoles as corrosion inhibitors in aqueous systems is disclosed. N-halo-azoles such as 1-chlorotolyltriazole and 1-bromotolyetriazole prepared ex situ the aqueous system being treated were found to be more effective corrosion inhibitors than tolyltriazole.

公开(公告)号：EP1093527B1

公开(公告)日：2006-02-08

申请号：EP99916522.8

申请日：1999-04-08

申请人： BetzDearborn Inc

发明人： MARGAN, Muthukumaraswamy Karanai ,  GHOSH, Santau ,  SENGUPTA, Indronil ,  MCNEILL, James, S.

IPC分类号： C21B5/02 ,  C21B5/00

CPC分类号： C21B5/007

摘要： In the manufacture of iron in which coke and coal are added to a blast furnace during iron manufacture, an improvement for enhancing the operation of the furnace is disclosed. A metallic element in the form of a compound thereof, the metallic element selected from zirconium, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, copper, zinc, aluminum, tin and lead is added to the coal, allowing for a reduction in the amount of coke added to the furnace.

公开(公告)号：EP1307534A4

公开(公告)日：2004-08-11

申请号：EP01954630

申请日：2001-07-10

申请人： BETZDEARBORN INC

发明人： MESKERS DONALD A ,  TIPPETT ROGER J A

IPC分类号： C11D1/00 ,  C11D3/00 ,  C11D3/28 ,  C11D3/34 ,  C11D3/36 ,  C11D11/00 ,  C23G1/06 ,  C23G1/08 ,  C23C22/50 ,  C23F11/167

CPC分类号： C11D3/0073 ,  C11D1/002 ,  C11D3/28 ,  C11D3/3427 ,  C11D3/361 ,  C11D11/0029 ,  C23G1/063 ,  C23G1/088

摘要： Methods and compositions for controlling corrosion of high strength steels in the presence of a cleaning solution for removing iron oxide scale from metal surfaces. A benzotriazole or benzimidazole compound is added to a combination of ethoxylated mercaptan and/or oxidized ethoxylated mercaptan and 1-hydroxyethylidene-1,1-diphosphonic acid. The composition is added to an aqueous system, such as a steam generating system, to remove scale from the metal surfaces.

公开(公告)号：EP1068502A4

公开(公告)日：2003-04-02

申请号：EP99906902

申请日：1999-02-10

申请人： BETZDEARBORN INC

发明人： CHEN HAIWEN ,  HONG KE ,  GUNTHER JOHN C

IPC分类号： G01M3/20 ,  F22B37/38 ,  F22B37/42 ,  G01M3/22 ,  G01M3/04

CPC分类号： F22B37/421 ,  G01M3/228

摘要： Methods and apparatus are provided for detection of leaks in boilers (10) containing a temperature control liquid (12) which is supplemented with feedwater and removed as blowdown. The methods include measuring rates associated with the feedwater supplementation and blowdown (18), adding a tracer to the temperature control liquid, determining the change in rate of the feedwater supplementation, determining the mass of the temperature control liquid, deriving the change in concentration of the chemical tracer in the temperature control liquid, calculating the unaccounted for water rate and comparing this rate with zero to determine if a leak condition is present.

公开(公告)号：EP1017977A4

公开(公告)日：2003-04-02

申请号：EP98935826

申请日：1998-07-21

申请人： BETZDEARBORN INC

发明人： CHEN HAIWEN ,  BURGMAYER PAUL R ,  HONG KE

IPC分类号： G01M3/28 ,  F22B37/42 ,  G01M3/22 ,  G01M3/32 ,  G01M3/08

CPC分类号： G01M3/32 ,  F22B37/421 ,  G01M3/3227

摘要： Methods and apparatus are provided for detection of leaks in boilers (14) containing temperature control liquid which is supplemented with feedwater (36) and removed as blowdown (26), main steam and sootblower steam. In a preferred embodiment, the boiler has an automatic liquid level control mechanism. The methods include measuring rates associated with feedwater supplementation and removal rates, correcting the offsets between the supplementation and removal rates, determining the unaccounted for water rate, and comparing the unaccounted for water rate with zero to determine if a leak condition is present.

公开(公告)号：EP1259115A1

公开(公告)日：2002-11-27

申请号：EP01908938.2

申请日：2001-02-08

申请人： BetzDearborn Inc

发明人： CZECHOWSKI, Melvin, H. ,  WHITEKETTLE, Wilson, K.

IPC分类号： A01N59/00 ,  A01N43/80 ,  A01N25/30 ,  C02F1/50

CPC分类号： A01N43/80 ,  A01N59/00 ,  A01N37/02 ,  A01N25/30 ,  A01N33/20 ,  A01N2300/00

摘要： Treatment for enhancing activity of biocidal compounds to control growth of microbes in aqueous systems, which comprises adding to said compounds an effictive amount of a dispersant composed of alkyl substituted carboxylated acid or salt thereof and polyoxyethylene-polyoxypropylene block copolymer.

公开(公告)号：EP0900182B1

公开(公告)日：2002-10-16

申请号：EP97922300.5

申请日：1997-04-04

申请人： BetzDearborn Inc

发明人： ARHANCET, Graciela, B.

IPC分类号： C07C7/20 ,  C07C11/18 ,  C07C69/618 ,  C07C57/44

CPC分类号： C09K15/08 ,  C07C7/20 ,  C09K15/06 ,  C07C11/18 ,  C07C11/167

摘要： The polymerization of an ethylenically unsaturated monomer such as isoprene and butadiene is inhibited during storage or handling thereof by the addition of a dihydroxycinnamic acid or derivative thereof.

公开(公告)号：EP0871596B1

公开(公告)日：2002-08-28

申请号：EP96916095.1

申请日：1996-05-17

申请人： BetzDearborn Inc

发明人： VAN PEE, Kristine, Laura, Ignatius ,  VAN SPEYBROECK, Michel, M., P. ,  VAN POELE, Jozef

IPC分类号： C02F3/34 ,  C11D3/386

CPC分类号： C02F3/342 ,  C11D3/38636 ,  D21H21/04

摘要： The present invention relates to a composition for the prevention and/or removal of biofilm on surfaces comprising at least one mannanase, optionally in combination with at least one enzyme from the group consisting of carbohydrases, proteases, lipases, glycoproteases, and the use of the composition for the prevention and/or the removal of biofilm from surfaces.