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Chemical inhibitors

The most significant commercial use of o- IDA is in the manufacture of tolytria2oles. Tolytria2oles are used as corrosion inhibitors, chemical intermediates, photographic chemicals, and catalysts (16). Other uses for o- IDA include polyols (13,54) and antioxidants (54). [Pg.239]

S. P. Landels, M. M. Smart,. Bakker, and. Shimosato, "Controlled Release Fertilisers and Nitrification Inhibitors," Chemical Economics Handbook, SRI International, Menlo Park, Calif., 1989. [Pg.139]

Therapeutic Function Antidepressant monoamine oxidase inhibitor Chemical Name 4-Pyridinecarboxylic acid 2-(1-methylethyl)hydrazide Common Name —... [Pg.837]

Therapeutic Function Vasodilator and platelet aggregation inhibitor Chemical Name Papaverine adenosine 5-monophosphate Common Name Papaverine adenylate... [Pg.1160]

Therapeutic Function Hypolipidemic platelet aggregation inhibitor Chemical Name 2,6-Pyridinemethanol-bis(3,4,5-trimethoxybenzoate) Common Name —... [Pg.1257]

These chemicals are generally marketed as water solutions (20 to 30% active). Alcohols are usually added to lower the freezing point and keep the inhibitor chemical in solution. [Pg.1333]

Where inhibitor chemical treatments are employed, they may be added daily by hand (shot-dosed, shock dosed) without any regard to product compatibility, FW needs, or fluctuations in boiler loading during the working day. The effectiveness of the program is therefore compromised under these conditions. [Pg.110]

Conventional polymer and phosphonate scale inhibitors may not be appropriate for application in high-pressure and high-temperature reservoirs. Only a limited range of commercially available oil field scale inhibitor chemicals are sufficiently thermally stable at temperatures above 150° C. These chemicals are homopolymers of vinyl sulfonate and copolymers of acrylic acid... [Pg.105]

Inhibitors may be classified according to their solution properties as either oil-soluble inhibitors, water-soluble inhibitors, or dispersible inhibitors. Chemical inhibitors act as film formers to protect the surface of the pipeline. Corrosion inhibitors, used for the protection of oil pipelines, are often complex mixtures. The majority of inhibitors used in oil production systems are nitrogenous and have been classified into the broad groupings given in Table 11-4. Typical corrosion inhibitors are shown in Table 11-5. For details, see also Chapter 6. [Pg.157]

Uses. In the preparation of azo dyes corrosion inhibitor chemical intermediate... [Pg.52]

Src Kinase Inhibitor Chemical Diversity and Biological Properties. 391... [Pg.383]

Alpha-Glucosidase Inhibitor Chemical Structure Oral Dose... [Pg.944]

In order to more properly understand the role and benefits of modern inhibitor chemicals, it is useful to review some examples of the more important types of original chemical inhibitors and treatment programs, especially as many of these are still being used today, albeit in an amended form by the incorporation of phosphonates and polymers, which have enhanced their performance. [Pg.140]

Chemical 1. Zinc-phosphate-based corrosion inhibitor Chemical 2. Acrylic acid copolymer, stabilizer dispersant Chemical 3. 1.5% Isothiazoline-based biocide... [Pg.287]

To demonstrate this strategy, simply consider in Table 8.2 the effect of raising the COC from 2x to 3x, then to 4x, compared with the potential savings to be made in both volumes and costs, for inhibitor chemicals and makeup water. [Pg.294]

Underdosing of inhibitor chemical additions probably occurred. This problem was made worse by the high bleed rate. Phosphate rates were typically only half what they should be (O-PO4 = 5.0 to 6.5 ppm, T-PO4 = 5.0 to 7.3 ppm ). Zinc levels were also low at 1.5 ppm. [Pg.297]

The presence of polyphosphate detergent in the cleaning formulation (some of which will revert to orthophosphate) will, under most circumstances, lead to passivation of the clean metal surfaces. Additionally, as part of the water treatment program start-up procedure, it may prove useful to supplement this initial passivation with 2 to 3x the normal reserve of maintenance inhibitor chemical treatment for a period of 1 to 2 weeks. [Pg.341]

Where bromine feeders are employed, never install the bromine water discharge close to any acid, inhibitor chemical injection point, or area where corrosion can result. Bromine injection points should be at least 6 ft (2 m) away from any other inhibitor to prevent inhibitor oxidation. Despite what literature may say, if bromine water containing 80 to 200 ppm or more of Br is injected close to an inhibitor chemical, some breakdown of the inhibitor will occur ... [Pg.359]

The dosing of a multifunctional inhibitor chemical through an injection point into a return, recirculating cooling waterline, too close to a similar injection point for bromine, resulted in oxidation of the inhibitor and a... [Pg.402]

Examples of kinetic inhibitor chemicals are shown in Figure 8.10. In the figure, each inhibitor is shown with a polyethylene backbone, from which a pendant group (typically a ring compound with an amide [—N—C=0] linkage) is suspended. There are several types of kinetic inhibitors, and due to proprietary... [Pg.660]

Other approaches attempted to overcome the obstacle of poor GI absorption of macromolecules include the use of enzyme intestinal inhibitors, chemical derivatization, prodrugs,... [Pg.50]

Therapeutic Function Cardiotonic, Platelet aggregation inhibitor Chemical Name lH-Imidazole-4-carboxamide, 5-amino-l(5-D-ribofuranosyl-Common Name Acadesine AICA riboside Arasine Structural Formula ... [Pg.17]

Therapeutic Function Proteinase inhibitor Chemical Name Trypsin inhibitor, pancreatic basic Common Name Aprotinin Frey inhibitor Kallikrein-trypsin inhibitor Chemical Abstracts Registry No. 9087-70-1... [Pg.370]

Therapeutic Function Aromatase inhibitor Chemical Name Androsta-l,4-diene-3,17-dione, 1-methyl-Common Name Atamestane Structural Formula ... [Pg.421]

Therapeutic Function Tyrosine hydroxylase inhibitor Chemical Name a-Methyl-L-tyrosine... [Pg.2287]

Therapeutic Function Enzyme, Wound adhesion inhibitor Chemical Name Enzyme used to prevent wound adhesions Common Name -... [Pg.2611]

Therapeutic Function Acetylcholinesterase inhibitor Chemical Name Ethanone, 2,2,2-trifluoro-l-(3-(trimethylsilyl)phenyl)-Common Name Zifrosilone Structural Formula ... [Pg.3535]

See other pages where Chemical inhibitors is mentioned: [Pg.43]    [Pg.416]    [Pg.225]    [Pg.279]    [Pg.62]    [Pg.62]    [Pg.158]    [Pg.292]    [Pg.294]    [Pg.302]    [Pg.352]    [Pg.357]    [Pg.375]    [Pg.378]    [Pg.400]    [Pg.651]   
See also in sourсe #XX -- [ Pg.93 ]



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