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.

Hydrogenation of residual monomers in partially polymerized acrylamide copolymers in latex form

Abstract: A method of reducing the monomer content of water-in-oil emulsions of partially polymerized acrylamide polymers which comprises catalytically hydrogenating the monomer at a temperature not greater than 100° C. and at a pressure below 500 psi.

Skin care composition containing an anionic polymer

Abstract: A cosmetically acceptable composition for treating skin comprising about 0.1 to about 20 weight percent, based on polymer solids, of an anionic polymer composed of from about 10 to about 80 mole percent of 2-acrylamido-2-methyl-l-propanesulfonic acid or a base addition salt thereof and from about 90 to about 20 mole percent of one or more anionic or nonionic monomers.

Use of control matrix for cooling water systems control

Abstract: Described and claimed is a method of controlling a cooling water system in which control is based on information from a control Matrix applicable to the specific operating parameters of said cooling water system comprising: (i) providing a suitable fluorometer, sufficient analytical devices and a suitable controller; (ii) programming said suitable fluorometer and controller using planning information from a control Matrix for cooling water systems being treated with treatment programs selected from the group consisting of: (a) stabilized phosphate, (b) zinc, and (c) all organic; (iii) using said fluorometer and sufficient analytical devices to determine the status of system factors; (iv) determining the pattern of changes in the readings from step (iii) over time; (v) comparing the changes in readings in steps (iii) and (iv), with the information listed in the control Matrix to determine what corrective action(s) is recommended; and (vi) using said controller to automatically implement said corrective action(s).

Thin film process for polymerization of water soluble monomers

Abstract: A CONTINUOUS POLYMERIZATION PROCESS, IN WHICH A AQUEOUS SOLUTION OF A WATER SOLUBLE UNSATURATED MONOMER IS POLYMERIZED ON A HEATED CONTINUOUSLY MOVING BELT, GIVES POLYMERIC PRODUCTS IN A DRY THIN FILM FORM.

Disinfection of domestic water systems for Legionella pneumophila

Abstract: A literature review was conducted to assess existing information on supplemental treatment of domestic water distribution systems to prevent the proliferation of Legionella pneumophila . This review explores some of the critical issues regarding discrepancies frequently observed between the efficacy of various domestic water disinfectants as evaluated in laboratory in vitro tests as compared with results observed in full-scale system applications. Secondly, the review summarizes domestic water disinfection technologies currently authorized or with the potential of being authorized in Europe and the United States. These technologies include inorganic oxidants (chlorine, chlorine dioxide, monochloramine, ozone, hydrogen peroxide), ionization (copper and/or silver), thermal procedures and ultraviolet radiation. For each technology, the principle of microbial inactivation, survival curves for various organisms, the method of application, the cost and advantages/disadvantages are reviewed.