Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Manganese-oxidizing

Process Chemistry. Manganese is combined with oxygen in its ores (see Table 3) and carbon is the most economical reducing agent for oxides. Therefore, the essential characteristics of manganese metallurgy is evident from examination of the interactions between manganese oxides and... [Pg.489]

In the presence of moist air, MnCl2 vapor decomposes into hydrochloric acid and manganese oxides. [Pg.505]

The mixed valent oxide Mn.O occurs in nature as the mineral hasumannite. The stmcture of this ferromagnetic material has been the subject of much dispute. Mn.O is the most stable of the manganese oxides, and is formed when any of the other oxides or hydroxides are heated in air above 940—1000°C. The oxidation of aqueous solutions of Mn (OH)2 can also lead to the formation of Mn O. ... [Pg.507]

Fig. 2. Hydration of the surface stmcture of manganese dioxide (2) and subsequent reactions of hydrous manganese oxide (3) showing proton transfer (4)... Fig. 2. Hydration of the surface stmcture of manganese dioxide (2) and subsequent reactions of hydrous manganese oxide (3) showing proton transfer (4)...
Manganese Oxides. Manganese(IV) dioxide rarely corresponds to the expected stoichiometric composition of Mn02, but is more reahsticaHy represented by the formula MnO y 2 q, because invariably contains varying percentages of lower valent manganese. It also exists in a number of different crystal forms, in various states of hydration, and with a variety of contents of foreign ions. [Pg.508]

A thermally stable, pure todorokite has been synthesized by autoclaving a layered stmctured manganese oxide, initially generated from the reaction of MnO and Mn " under alkaline conditions. The synthetic manganese oxide molecular sieve (11) was shown to have a tunnel size, ie, diameter of 690 pm. This material was thermally stable to 500°C just as natural todorokite is (68). [Pg.511]

The dissolution of carbon in molten iron in the lower part of the furnace, leads to the reduction of manganese oxide (eq. 15) and some sihea (eq. 14), both in the slag, whereby the subsequent dissolution of these metals occurs in the molten iron. [Pg.166]

Water Dispersions. Polysulftde products are offered as aqueous dispersions (Thiokol WD-6). These are useful for applyiag protective coatings to line fuel tanks, and for concrete, wood, and ia some cases fabrics, felt, leather (qv), and paper (qv). It has been found that a stable emulsion can be made that contains both LP and manganese oxide curing agent. The emulsion can be thinned and appHed as a spray coating. After it is appHed, water evaporates and the LP cures to form a soHd mbber (13). [Pg.459]

In kaolin (clay) processing, sulfur dioxide reduces colored impurities, eg, iron compounds. In the bromine industry, sulfur dioxide is used as an antioxidant in spent brine to be reinjected underground. In agriculture, especially in California, sulfur dioxide is used to increase water penetration and the avadabiHty of soil nutrients by virtue of its abiHty to acidulate saline—alkaH soils (327). It is also usefiil for cleaning ferric and manganese oxide deposits from tile drains (328). [Pg.148]

The thermistor material is usually a metal oxide, eg, manganese oxide. Dopants, eg, nickel oxide or copper oxide, may be added to obtain a variety of resistance and slope characteristics. The material is usually skitered kito a disk or bead with kitegral or attached connecting wkes. Figure 4 shows a typical series of steps ki the production of a disk thermistor. [Pg.401]

Variety and source Si02 (siHca ) FeO (ferrou s oxide) 3 (ferri c oxide ) AI2O3 (alumina) MgO (magnesia) CaO (lime ) MnO (manganese oxide) Na20 (sodiu m oxide) icp (potassiu m oxide) up, adsoibe d up+, combine d... [Pg.346]

The manganous ion [16397-91 -4] in solution then reacts with higher valent manganese oxide and zinc ions in solution to form a new phase called... [Pg.521]

Other Types of Portland Cements. White Portland cementis standard Type I or III Pordand cement with raw materials selected and controUed to have negligible amounts of Hon and manganese oxides, which impart the gray color. The white Pordand cement is used in decorative and architectural appHcations like precast curtain waUs, terra22o surfaces, stucco, tile grout, and decorative concrete. [Pg.323]

Analysis. Butenes are best characterized by their property of decolorizing both a solution of bromine in carbon tetrachloride and a cold, dilute, neutral permanganate solution (the Baeyer test). A solution of bromine in carbon tetrachloride is red the dihaUde, like the butenes, are colorless. Decoloration of the bromine solution is rapid. In the Baeyer test, a purple color is replaced by brown manganese oxide (a precipitate) and a colorless diol. These tests apply to all alkenes. [Pg.369]

The laterites can be divided into three general classifications (/) iron nickeliferrous limonite which contains approximately 0.8—1.5 wt % nickel. The nickel to cobalt ratios for these ores are typically 10 1 (2) high siUcon serpentinous ores that contain more than 1.5 wt % nickel and (J) a transition ore between type 1 and type 2 containing about 0.7—0.2 wt % nickel and a nickel to cobalt ratio of approximately 50 1. Laterites found in the United States (8) contain 0.5—1.2 wt % nickel and the nickel occurs as the mineral goethite. Cobalt occurs in the lateritic ore with manganese oxide at an estimated wt % of 0.06 to 0.25 (9). [Pg.370]

EDA reacts readily with two moles of CS2 in aqueous sodium hydroxide to form the bis sodium dithiocarbamate. When aqueous ammonia and 2inc oxide (or manganese oxide or its hydrate) is used with a basic catalyst, the 2inc (or manganese) dithiocarbamate salt is isolated. Alternatively, the disodium salt can react with ZnSO or MnSO followed by dehydration in an organic solvent to yield the same salts (48—50). [Pg.43]

Figure 4.6 A thin, glassy layer of predominantly manganese oxide on the internal surface of a brass condenser tube. The many white spots are pits at fractures in the manganese layer. Figure 4.6 A thin, glassy layer of predominantly manganese oxide on the internal surface of a brass condenser tube. The many white spots are pits at fractures in the manganese layer.

See other pages where Manganese-oxidizing is mentioned: [Pg.250]    [Pg.574]    [Pg.164]    [Pg.227]    [Pg.494]    [Pg.503]    [Pg.505]    [Pg.505]    [Pg.505]    [Pg.506]    [Pg.508]    [Pg.510]    [Pg.510]    [Pg.511]    [Pg.512]    [Pg.527]    [Pg.166]    [Pg.170]    [Pg.36]    [Pg.423]    [Pg.521]    [Pg.583]    [Pg.425]    [Pg.425]    [Pg.428]    [Pg.77]    [Pg.41]    [Pg.50]    [Pg.328]    [Pg.112]    [Pg.343]   


SEARCH



1.3- Dicarbonyl compounds oxidations, manganese acetate

Acetylene manganese oxides

Adsorption hydrous manganese oxide

Adsorption, activated carbon manganese oxides

Alcohols benzylic, oxidation by manganese dioxide

Alcohols oxidation by manganese dioxide

Alcohols propargylic, oxidations, manganese dioxide

Alcohols saturated, oxidations, manganese dioxide

Alcohols, secondary, oxidation with manganese dioxide

Aldehydes amine oxidations, manganese dioxide

Allylic alcohols oxidation by manganese dioxide

Allylic oxidation with manganese dioxide

Allylic oxidations alkenes, manganese acetate

Amides amine oxidations, manganese dioxide

Amines oxidation with manganese

Autocatalytic oxidation of manganese

Bacteria iron/manganese oxidizing

Bacteria, manganese-oxidizing species

Barium, manganese oxides

Biomimetic Manganese Oxidation Catalysis

Biomimetic manganese oxide

Black manganese oxide

CDMOs manganese oxides

Calcium manganese oxide

Carbon monoxide oxidation manganese dioxide catalyst

Chromium manganese oxide electrodes

Cobalt manganese oxide films

Cobalt-intercalated layered manganese oxide

Cobalt-manganese oxide-copper catalyst

Colloidal hydrous ferric and manganese oxides

Colloidal hydrous manganese oxide

Composite dimensional manganese oxide

Composite dimensional manganese oxide CDMO)

Composite dimensional manganese oxides CDMOs)

Copper-manganese oxide

Coprecipitation of Trace Elements with Iron and Manganese Oxides

Crystallographic manganese oxides

Diploicin manganese dioxide oxidation

Electrochemistry of Manganese Oxides

Electrochemistry, manganese oxides

Electrodeposition of Manganese Oxides

Electrolytic manganese oxides

Example Oxidation States of Manganese

F Malononitrile Manganese oxide

Green manganese oxide

Group 7 metal-promoted oxidations epoxidation by salen manganese complexes

Heterocyclic alcohols, oxidations, manganese dioxide

Heterocyclic, oxidations, manganese dioxide

Higher Oxidation State Manganese Biomolecules

Higher Oxidation States of Manganese

Hydrous oxides of iron and manganese

Hydroxylamines oxidations, manganese dioxide

Intermolecular reactions manganese oxidation

Iron and manganese oxidizing bacteria

Iron manganese oxide

Iron, aluminum, and manganese (oxy)(hydr)oxides

Lanthanum strontium manganese oxid

Layered Manganese Oxides Applications

Layered birnessite-type manganese oxide

Layered manganese oxides

Lithium manganese oxide

Lithium manganese oxide batteries

Lithium manganese oxide nanoparticles)

Lithium manganese oxide spinel

Lithium nickel manganese cobalt oxide

Lithium-manganese dioxide oxide electrodes

Low-grade Manganese Oxides

Manganese (Hydr)oxides

Manganese Complexes for Alkene Oxidation Based on Pyridyl Ligands

Manganese II) oxide

Manganese III) oxide

Manganese IV) oxide

Manganese Oxide Phases

Manganese Oxides as Promotors for Reforming Processes

Manganese VII) oxide

Manganese abiotic oxidation

Manganese acetate acetaldehyde oxidation

Manganese acetate oxidation with

Manganese active, oxidations with

Manganese alkene oxidation

Manganese biotic oxidation

Manganese catalysis oxidation

Manganese chromium-zinc oxid

Manganese complexes allylic oxidation

Manganese complexes amine oxides

Manganese complexes arsenic oxides

Manganese complexes bipyridyl oxides

Manganese complexes oxidation

Manganese complexes oxidation catalysts

Manganese complexes oxidation states

Manganese complexes oxide fluorides

Manganese complexes oxides

Manganese complexes pyridine oxides

Manganese complexes, oxidation-reduction

Manganese dioxide allylic oxidation

Manganese dioxide oxidation

Manganese dioxide oxidation mechanism

Manganese dioxide oxidation sensitivity

Manganese dioxide oxidation side reactions

Manganese dioxide oxidation solvent

Manganese dioxide oxidation temperature

Manganese dioxide, as oxidant

Manganese dioxide, oxidation of allylic

Manganese dioxide, oxidation of allylic alcohols

Manganese higher oxidation states

Manganese hydrous oxides

Manganese in oxidation

Manganese ions, oxidation

Manganese lower oxidation states

Manganese mixed oxidation state complexes

Manganese model oxidation

Manganese nitric oxide synthase

Manganese oxidation

Manganese oxidation

Manganese oxidation carbon-hydrogen bonds

Manganese oxidation cyclization reactions

Manganese oxidation epoxidation

Manganese oxidation in aqueous

Manganese oxidation levels

Manganese oxidation metal oxides

Manganese oxidation potentials

Manganese oxidation rate

Manganese oxidation site

Manganese oxidation states

Manganese oxidation states, aqueous solution

Manganese oxidation states/valences

Manganese oxidation studies

Manganese oxidation with

Manganese oxidation, free energy

Manganese oxide (MnO

Manganese oxide catalysts, oxygen production from water

Manganese oxide coagulation

Manganese oxide coatings

Manganese oxide colloidal

Manganese oxide coordination number

Manganese oxide crystal structure

Manganese oxide diffusion coefficient

Manganese oxide electrodes

Manganese oxide fluorides

Manganese oxide image

Manganese oxide minerals formed

Manganese oxide minerals formed environments

Manganese oxide presentations

Manganese oxide pressure

Manganese oxide properties

Manganese oxide scale

Manganese oxide spinel

Manganese oxide structure

Manganese oxide thermal conductivity

Manganese oxide, adsorption

Manganese oxide, estimation

Manganese oxide, naming

Manganese oxide, oxidizing phenolic

Manganese oxide, oxidizing phenolic acids

Manganese oxide, proton conduction

Manganese oxide, stereochemistry

Manganese oxide-asbesto

Manganese oxide-asbestos

Manganese oxide: oxidation with

Manganese oxides

Manganese oxides active

Manganese oxides and hydroxides

Manganese oxides covalency

Manganese oxides degradation

Manganese oxides dehydrated

Manganese oxides dissolution

Manganese oxides enrichments

Manganese oxides extraction

Manganese oxides formation

Manganese oxides high surface activity

Manganese oxides mesoporous

Manganese oxides microporous

Manganese oxides precipitates

Manganese oxides reactions with metals

Manganese oxides reduction

Manganese oxides sedimentation

Manganese oxides selective dissolution

Manganese oxides wastewater organic pollutants

Manganese oxides with layer structures

Manganese oxides with tunnel structures

Manganese oxides, composition

Manganese oxides, crystalline phases

Manganese oxides, decompositions

Manganese oxides, deposition

Manganese oxides, names

Manganese oxides, photochemical

Manganese oxides, photochemical production

Manganese oxides, reductive

Manganese oxides, reductive dissolution

Manganese oxides, supported

Manganese oxides/hydroxides

Manganese oxidized sediments

Manganese oxids

Manganese porphyrin, oxidation

Manganese porphyrins oxidation with

Manganese porphyrins oxidation with iodosylbenzene

Manganese pyrophosphate oxidation with

Manganese sulfide oxidant

Manganese titanium oxide

Manganese triacetate a-oxidation

Manganese triacetate allylic oxidation

Manganese, Black Oxide Binoxide

Manganese, Black Oxide Peroxide

Manganese, arenetricarbonyladdition-oxidation reactions

Manganese, arenetricarbonyladdition-oxidation reactions synthesis

Manganese, atmospheric oxidation catalyzed

Manganese, hydrated oxides

Manganese, hydrated oxides dehydrations

Manganese-Catalyzed Oxidation with Hydrogen Peroxide

Manganese-Catalyzed Oxidative Cross-Coupling Reactions

Manganese-based Oxidation with Hydrogen Peroxide

Manganese-catalysed oxidation of water to oxygen

Manganese-catalyzed oxidation

Manganese-catalyzed water oxidation

Manganese-catalyzed water oxidation formation

Manganese-catalyzed water oxidation structures

Manganese-cerium mixed oxides

Manganese-chromium oxide

Manganese-oxidizing bacteria

Manganese-phosphorus oxide catalyst

Manganese-uranium oxides

Metal Complexes and Manganese Oxides for Heterogeneous Water Oxidation

Metal oxides manganese

Microbes iron/manganese oxidizing

Microorganisms manganese oxidation

Nanomaterials manganese oxides

Nickel cobalt manganese oxide

Nickel-manganese oxide catalysts

Nomenclature manganese oxides

Oxidants manganese

Oxidants manganese

Oxidation activated manganese dioxide-silica

Oxidation allylic alcohol, manganese dioxide

Oxidation by manganese dioxide

Oxidation iron and manganese

Oxidation manganese acetate

Oxidation manganese catalysts

Oxidation manganese dioxide, active

Oxidation manganese dioxide, benzyl alcohol

Oxidation of Iron and Manganese

Oxidation of manganese

Oxidation reactions Lead tetraacetate-Manganese

Oxidation reactions activated manganese dioxide-silica

Oxidation reactions manganese

Oxidation state of manganese

Oxidation with manganese dioxide

Oxidation with manganese-containing compounds

Oxidation, aerobic manganese -catalyzed

Oxidation, basic conditions manganese dioxide

Oxidation-Wittig reactions, manganese dioxide

Oxidations by manganese(VII)

Oxidations of alcohols with manganese dioxide

Oxidations, free manganese ions

Oxidative DNA damage by manganese complexes

Oxidative cleavage manganese dioxide

Oxidative cyclization manganese®]) acetate

Oxidative using manganese porphyrin

Oxides manganese-based

Oxides of manganese

Oxidizing agents manganese compounds

Oximes oxidations, manganese dioxide

Performance lithium/manganese oxide batteries

Polymer manganese oxide

Polymorphism manganese oxide

Porous manganese oxide materials

Potassium chlorate reaction with manganese oxide

Red oxide of manganese

Reduced manganese oxides

Reductive dissolution of iron and manganese (oxy)(hydr)oxides

Relative oxidation rate manganese oxide

Rubidium manganese oxides

Sodium manganese oxides

Strontium manganese oxide

Study of manganese oxidation

Supported Oxides of Manganese

Surface area Layered manganese oxides

The hydrous oxides of iron and manganese

The oxides of manganese

Thermal manganese oxidation

Todorokite-like manganese oxide

Transition manganese oxide phases

Transition manganese oxide structures

Transmission electron microscopy manganese oxide

Water Oxidation and Related Reactions Catalysed by Manganese Compounds

Water manganese oxides

© 2024 chempedia.info