Nalco Holding Company

About: Nalco Holding Company is a based out in . It is known for research contribution in the topics: Corrosion & Aqueous solution. The organization has 2375 authors who have published 3056 publications receiving 51473 citations.

Mixing block for mixing polymers

Abstract: A device for mixing viscous fluids with water comprising a rectangular block containing a pre-mixing chamber, a center section fitted with a bevelled double acting valve capable of restricting fluid flow in two distinct directions, an outlet chamber and recycling means for thoroughly mixing the viscous fluids with the water. The mixing device is able to balance both low and high back pressures, eliminate cavitation and deliver a mixture of viscous fluid and water without serious degradation of the components of the viscous fluids.

Selective retention of filling components and improved control of sheet properties by enhancing additive pretreatment

Abstract: A method for increasing retention and drainage of filling components in a paper making furnish in a paper making process comprising the steps of: making a slurry of filling components, treating the slurry with from about 0.003% to about 2.0% by weight based on total solids of a phenolic enhancer to form a pretreated filling components slurry, adding to the furnish the pretreated slurry and adding to the furnish from about 0.003 to about 0.5% by weight based on total solids in the slurry of a polymeric flocculant, whereby retention and drainage of filling components in the paper making furnish is increased. A preferred enhancer is a condensate of phenol and formaldehyde and preferred flocculants contain acrylamide, methacrylamide, and/or N-vinylformamide. The methods provide important benefits in many papermaking applications, in which desirable filling components are retained in the final sheet, while undesirable filling components, such as ink and dye particles present in a recycled papermaking furnish, are not retained.

Refinery anti-foulant - asphaltene dispersant

Abstract: An asphalt or asphaltene refinery anti-foulant technique comprising the use in crude oil, or crude oil fraction, streams of alkyl-substituted phenol formaldehyde liquid resins in combination with hydrophilic-lipophilic vinylic polymers. The polymeric anti-foulant is added to asphalt or asphaltene containing crude oil streams to prevent fouling of metallic, or other, i.e. ceramic, surfaces, especially heat transfer surfaces.

Method and arrangement for feeding chemicals into a process stream

Abstract: An apparatus for feeding one or more chemicals into a process stream of a papermaking process is disclosed, as well as a method of utilizing the apparatus for feeding one or more chemicals into a process stream is disclosed.

Portable liquid container

Abstract: A portable liquid container has a four-sided shell enclosed by a bottom wall and a top wall. The bottom wall is formed by four triangular portions sloping downwardly to a delivery opening. The top wall has an upwardly sloping configuration with an enlarged opening in the middle thereof. The opening is normally covered by a lid. Two lifting channels and a delivery pipe and valve are located on the underside of the bottom wall. Four legs attached to the bottom wall support the container at a height sufficient to clear the delivery pipe and lifting channels. Leg positioners are located at the upper corners of the container and are arranged to receive the legs of a second like container stacked on top of a first container.