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Magnesium hydroxide for neutralizing acid waste containing metals

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Advantage of Mg(OH)2 for acid neutralization of metal containing effluent are discussed. It is claimed to produce sludge of low volume which can be dewatered easily. Slight modification on operations and/or equipment are required.

Magnesium hydroxide for wastewater treatment

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Use of Mg(OH)2 Technical-50 S (MHT-50 S) for neutralisation of acid metal finishing effluents is described. Advantages are little water entrapment in heavy metal pptn. and reduced sludge formation. Product is available from Dow Chemical USA, Midland, MI.

Magnesium Hydroxide Slurry for Acid Waste Stream Neutralisation

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Benefits of magnesium hydroxide rather than NaOH or slaked lime are extolled. Histogram shows how less weight of solid is used and heavy metals ppt to form denser sludges (1.6 to 1.75 rather than 1.28 with NaOH) with faster filtration times ( 1.5 to 2 hrs, NaOH = 7 to 8 hrs. Filtration volume is less than 50% of NaOH. Mg hydroxide is less hazardous. Graph shows pH vs time (during neutralisation). Mg gives smoother curve - NaOH & Ca hydroxide give step-function.

Magnesium Hydroxide, magnesium Hydroxide/Silica Composite Particle, Processes for producing these, Method of Surface Treatment of these, and Resin Composition and Electric Wire Containing or produced with these.

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Magnesium hydroxide and composite magnesium hydroxide-silica particles which can make a resin composite and good in wear resistance and other aspects of strength, elastic modulus, etc., method for the manufacture thereof, method for the surface treatment thereof, and resin composition and electric wire or cable made by using the same. They are obtained by, for example, reacting a magnesium salt and a metal hydroxide or reacting a magnesium salt and a metal hydroxide in the presence of silica particles and can be incorporated with a resin to form a resin composition. A resin composition characterized by containing magnesium hydroxide particles, silica particles and a resin preferably contains fumed silica particles having their surfaces treated with a methyl group.

Magnesium Hydroxide, Magnesium Hydroxide/Silica Composite Particle, Processes for Producing these, Method or Surface Treatment of these, and Resin Composition and Electric Wire Containing or Produced with these.

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Title particle form 2nd phase in resin-based composite for cable coating which is fire retardant and wear resistant.

Magnesium metals reference source

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Commercially sponsored website aims to cover anything from history of Mg to its coating & corrosion protection, machining, casting, thixomoulding etc, as well as products made of Mg (or alloys) & other applications.

Magnesium or Magnesium Alloy Article having Electroconductive Anodic Oxidation on the Surface thereof and Method for Production thereof

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An article of magnesium or a magnesium alloy which has, on the surface thereof, an electroconductive anodic oxidation coating exhibited resistance value of the surface of the coating, as measured between two terminals being 10 mm apart from each other, of 100 ohm or method for producing the article which comprises immersing a magnesium or magnesium alloy product in an electrolyte which contains phosphate and 0.2 to 5 mol/L of ammonia or an ammonium ion and has a pH of 8 to 14, and subjecting the surface of to an anodic oxidation treatment. The article of magnesium or a magnesium alloy has, on the surface thereof, an anodic oxidation coat combines good electroconductivity and excellent corrosion resistance.

Magnesium oxide by injection CVD

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Epitaxial YB2Cu3O7 layers with 45° in-plane orientation were grown by Injection CVD on MgO substrates polished off-axis to within 1.4- 1.9° of [100] direction. New single-source CVD process is based on computer-controlled injection of precise microdoses of metal-organic precursor soln. into CVD reactor. Wide range of soln. compositions was tested to investigate compositional effects on phase purity, surface morphology, texturing and superconducting properties of prepared films.Highest quality films with pure 45° texture had a smooth surface, zero resistance T(c) (R = 0) of 88-89 K, and critical current density J(c) (77°K) > 10E6 A/sq. cm,

Magnesium oxide coating

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Process comprises contacting vapour of alkyl-Mg alkoxide (R-Mg-OR') with substrate heated to >20°C (R = C1-4 alkyl group and R' = C2-8 alkyl group).

Magnesium oxide layer

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Coating soln for producing MgO layer on glass by curing, comprises solvent and Mg compound obtained by partially acetylating and partially hydrolyzing Mg-dialkoxide compound.

Magnesium Oxide Vapor Deposition Materials and Method for Preparation thereof.

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Magnesium Plasma Immersion Ion Implantation on Silicon Wafers

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Magnesium repair and build up.

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Methods and materials for use in applying a coating on a surface of a magnesium component, including the steps of: accelerating a coating powder to a velocity of between about 500 to about 1200 meters/second, wherein the coating powder comprises a material selected from the group consisting of aluminum, aluminum alloys, titanium, titanium alloys, and composites; directing the coating powder through a convergent-divergent nozzle onto the surface of the magnesium component; and forming a coating on the surface of the magnesium component so as to substantially cover the surface of the magnesium component. The coating thickness may be between approximately 0.1 to approximately 1.0 mm.

Magnesium repair and build up.

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Methods and materials for use in applying a coating on a surface of a magnesium component. The method includes the steps of: accelerating a coating powder to a velocity of between about 500 to about 1200 meters/second, wherein the coating powder comprises a material selected from the group consisting of aluminum, aluminum alloys, titanium, titanium alloys, and composites; directing the coating powder through a convergent-divergent nozzle onto the surface of the magnesium component; and forming a coating on the surface of the magnesium component so as to substantially cover the surface of the magnesium component. The coating thickness may be between approximately 0.1 to approximately 1.0 mm.

Magnesium repair by cold spray

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Focus on repair of mechanical components of Mg alloy, e.g aircraft gearboxes. Equipment used, selection of gases and powders, effect of powder morphology, process costs & details - graph plots particle and gas velocities. Tables show selected process conditions, and coatings are characterised in terms of adhesion bond strength (bond bar test method is described) and coating hardness. Numerous metallographic sections & cross-sections are shown. Details of corrosion testing, mainly salt spray. Techniques & results of oxygen (oxide) analysis of coatings is given. Use of title method in place of thermal sprayed coatings is noted. 17 refs