Institution
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.
Topics: Corrosion, Aqueous solution, Polymer, Alkyl, Monomer
Papers published on a yearly basis
Papers
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07 Nov 1990TL;DR: In this paper, the improved fluorescent pigment compositions comprising a fluorescent dye combined in a polyamide-polyester thermoplastic resins are described. But the resins were prepared from aromatic polycarboxlic acids and lower aliphatic amino alcohols.
Abstract: The invention provides improved fluorescent pigment compositions comprising a fluorescent dye combined in a polyamide-polyester thermoplastic resin. The resins are prepared from aromatic polycarboxlic acids and lower aliphatic amino alcohols.
22 citations
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TL;DR: The adverse impact of tobacco chewing on semen parameters was evident even with mild chewers, but with the intensive chewing practice, phenotypes of sperms, mainly defects in the head and cytoplasmic residue were severely affected.
Abstract: Aim : The aim of the following study is to find out the prevalence of abnormal spermatozoa and associated functional parameters in clinical semen samples of sub-fertile males with the tobacco chewing habit. Settings and Design : Retrospective study was conducted at infertility unit of a tertiary health care center, in a period of 3 years. Materials and Method : Semen of 642 males were analyzed; of them 194 men (30.2%) were tobacco chewers and they were grouped according to their intensity of chewing (<10 and ≥ 10 packets/day). Counts, motility, vitality, and morphology of sperms were analyzed. Results : In tobacco chewers, 66% of subjects were oligozoospermic, 85% asthenozoospermic and 28% teratozoospermic. Sperm counts (odds ratio [OR] =2.2; 95% confidence interval [CI]: 1.5-3.09), motility (OR = 3.2; 95% CI: 2.05-4.9), and normal morphology (OR = 8.4; 95% CI: 4.9-14.6) were significantly affected (P = 0.001) in tobacco chewers than the non-chewing group. Further, in comparison to the intensity of tobacco chewing, patients with the intensive practice of using ≥10 packets/day had a significant effect on sperm morphology (P = 0.003, OR = 2.7; 95% CI = 1.41-5.08) only. Structural defects in head (P = 0.001) and cytoplasmic residues (P = 0.001) were found to be positively correlated with the intensive chewing, but no significant changes were found in anomalies in mid-piece and tail. Conclusion : The adverse impact of tobacco chewing on semen parameters was evident even with mild chewers, but with the intensive chewing practice, phenotypes of sperms, mainly defects in the head and cytoplasmic residue were severely affected.
22 citations
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13 Feb 1995TL;DR: In this paper, aqueous acid solution was used to treat underground oil-bearing formations with an effective amount of an alkoxylated alkyl substituted phenol sulfonate which exhibits both antisludge and demulsification properties.
Abstract: Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an alkoxylated alkyl substituted phenol sulfonate which exhibits both antisludge and demulsification properties.
22 citations
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30 Sep 1996TL;DR: In this article, a derivatized polyamino acid polymers and gels are presented, which are derived from solid phase polymerization of aspartic acid or glutamic acid in the presence of a super phosphoric acid catalyst.
Abstract: New and improved polyamino acid polymers and derivatized polyamino acid polymers are provided. Relatively high molecular weight poly(succinimides) are prepared by solid phase polymerization of aspartic acid or glutamic acid in the presence of a super phosphoric acid catalyst. The poly(succinimides) may be hydrolyzed to provide biodegradable polyaspartic acid or polyglutamic acid homopolymer having weight average molecular weights ≧70,000. Higher molecular weight, water soluble, cross-liked polyamino acid polymers and gels are also provided. In a preferred embodiment, the poly(succinimides) are derivatized in aqueous media to provide storage stable, substantially linear, biodegradable polyamino acid polymers having pendant hydroxyl, ether, hydroxyalkylaminoalkyl, hydroxyalkoxyalkyl, carboxyl, sulfonoalkyl and/or phosphonoalkyl functionalities. The polymers are useful as chelants in various water treatment applications.
22 citations
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24 Jun 1993TL;DR: A secondary polishing process for Bayer Process liquors suspension is described in this paper, which uses a combination of bio-polymers, particularly such bio-carbohydrates as dextran, with an inert insoluble solid, such as a filter aid, to treat the primary red mud settler overflow, then clarifying these treated overflow liquors in a secondary clarifier.
Abstract: A secondary polishing process for Bayer Process liquors suspension is described. The polishing process uses a combination of bio-polymers, particularly such bio-carbohydrates as dextran, with an inert insoluble solid, such as a filter aid, to treat the primary red mud settler overflow, then clarifying these treated overflow liquors in a secondary clarifier. Results provide for from 0-20 milligrams per liter suspended solids, often from 0-5 ppm suspended solids, and may make sand filter or Kelly filter operation an option in the Bayer Process.
22 citations
Authors
Showing all 2375 results
Name | H-index | Papers | Citations |
---|---|---|---|
Omar M. Yaghi | 165 | 459 | 163918 |
Ashok Kumar | 151 | 5654 | 164086 |
Dipak Kumar Sahoo | 47 | 234 | 7293 |
Aditya P Dash | 46 | 232 | 13410 |
Sanjeeb K. Sahoo | 42 | 96 | 9267 |
Rupesh Dash | 37 | 86 | 4197 |
Jay C. Means | 30 | 84 | 3257 |
Sunil Kumar | 30 | 230 | 3194 |
Amol Suryawanshi | 29 | 74 | 2154 |
Daniel R. Dreyer | 28 | 44 | 18390 |
Tathagata Choudhuri | 27 | 47 | 2355 |
James E. Whitten | 26 | 116 | 1997 |
Balachandran Ravindran | 26 | 85 | 1973 |
Anshuman Dixit | 25 | 82 | 1522 |
Douglas E. Betts | 25 | 36 | 2690 |