united states patent 3944653 antimony trioxide

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The metallurgy of antimony - ScienceDirect

Antimony trioxide, Sb 2 O 3, is the most important antimony compound produced. Today, antimony trioxide is produced by volatilizing antimony metal in an oxidizing furnace. It is used in halogen compound flame retarding formulations for plastics, paints, textiles and rubber.

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DEVELOPMENT OF SECONDARY ANTIMONY OXIDES FROM ...

antimony trioxide from high grade antimony metal is considered state of the art. Antimony is melted to around 1000 °C in a suitable furnace whilst air is blown above the surface. Oxidized ... in their United States Patent. The authors used drosses containing approximately 70 Wt.% PbO and 30 Wt.% Sb 2O

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Process for producing antimony trioxide - Roycefield ...

 · The present invention relates to a process for the production of antimony trioxide. 2. Description of the Prior Art . Antimony trioxide, also known as antimonous oxide and/or Sb 2 O 3, is a known compound useful in the manufacture of paints, plastics, ceramics, and the like. The principal utility of antimony trioxide is as a flame retardant.

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Draft Report on Carcinogens Monograph on Antimony Trioxide ...

Antimony trioxide is the most commercially significant form of antimony and is a high-production-volume chemical with a production volume exceeding one million pounds per year. Its major industrial use is as a synergist with halogenated flame-retardants in textiles, plastics, and rubber.

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Ited States Patent Antimony Trioxide - gijmelbergwijk

Antimony Trioxide News, Pricing News and Features ... The latest Antimony Trioxide news, ... in China has softened week on week on fears of a possible trade war between China and the United States.

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Patent US2777773 | Titanium Dioxide | Titanium

United States Patent ()? ice' 2,777,773 Patented Jan. 15, 1957 ... One of these of added antimony trioxide at a temperature of about known equations is 1150° C.777. it is to be understood that the same are intended primarily by way of illustration and not in limitation method of the prior art. 000 . ...

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Barium oxide - Wikipedia

Barium oxide, BaO, is a white hygroscopic non-flammable compound. It has a cubic structure and is used in cathode ray tubes, crown glass, and catalysts. It is harmful to human skin and if swallowed in large quantity causes irritation. Excessive quantities of barium oxide may lead to death.

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Glossary - web.lemoyne.edu

In modern units, the pied is equivalent to 0.325 meters or about 1.07 feet in the "English" system still commonly used in the United States. pinte: volume unit in late 18 th-century France, equal to 2.01508 English pints, 58.145 cubic inches, or 0.953 liters. Plimmer's salt: sodium antimony tartrate, Na(SbO)C 4 .

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LIMITED-ANTIMONY-CONTENT AND ANTIMONY-FREE .

A yarn, fabric, and garment suitable for use in arc and flame protection comprising aramid fiber and modacrylic fiber wherein the modacrylic fiber has less than 1.5 percent antimony and is preferably antimony .

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Patent US3274134 - Very soft urethane vulcanizates which ...

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Process for producing antimony trioxide - Roycefield ...

 · United States Patent 5783166 ... Process for producing antimony trioxide having a low alpha-ray strength: 1985-07-30: Nakahira et al. 423/87: ... The base should be one which is capable of converting the antimony trichloride to antimony trioxide--see, for example, Canadian patent 1,014,332 (Shafer), the contents of which are hereby ...

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United States Patent (19)

polymeric systems employing antimony trioxide as a fire retardant additive has been outstanding. Antimony trioxide has been found especially effective for use in 35 systems based on halogen containing polymers. The effectiveness of antimony trioxide, as well as other anti mony compounds as a fire retardant additive to halogen

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Marketing Strategy of Nokia Essay Example for Free

All of Nokia's mobile phones are free of toxic polyvinyl chloride (PVC) since the end of 2005 and all new models of mobile phones and accessories launched in 2010 are on track to be free of brominated compounds, chlorinated flame retardants and antimony trioxide.

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Producing Antimony Trisulfide (Nihon Seiko Ltd)

A method for producing antimony trisulfide can inexpensively produce antimony trisulfide that has a relatively low content of lead, arsenic, and crystalline silica (i.e., impurities). The method includes charging a reaction vessel with an antimony trioxide powder and sulfur, and heating the inside of the reaction vessel to react antimony

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Latilization Roasting Techniques For Antimony - rcci

Antimony trioxide is produced in the US by roasting antimony . A later study in 1967 with improved radiologic techniques found 44 of 262 men with simple . ... United States Patent (19) 11 Patent Number: 5,783,166.

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Satoshi KITAZONO Inventions, Patents and Patent ...

Patents by Inventor Satoshi KITAZONO ... This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). ... arsenic, and crystalline silica (i.e., impurities). The method includes charging a reaction vessel with an antimony trioxide powder ...

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United States Patent 4,543,442 - NASA

United States Patent [I91 Alcorn et al. [11] Patent Number: 4,543,442 ... ployee of the United States Government as well as in adhesion between metal and semiconducting layers of a ... antimony trioxide, or to the nearest finger of the interdigitated ohmic contact.

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This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). ... antimony trioxide, silane condensation catalyst and magnesium hydroxide are provided. Additionally, antioxidant(s), other mineral fillers and other conventional compounding ...

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