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US5783166A Process for producing antimony trioxide

A process for the production of antimony trioxide comprising the steps of: (i) reacting antimony trisulfide with iron (III) chloride to produce antimony trichloride; and (ii) hydrolyzing antimony trichloride to produce antimony trioxide. In a preferred embodiment, the process is substantially closed or near-closed loop. Antimony trioxide is a known flame retardant for use in plastics, ceramics

WO1998011021A1 Process for producing antimony

A process for the production of antimony trioxyde comprising the steps of: (i) reacting antimony trisulfide with iron (III) chloride to produce antimony trichloride; and (ii) hydrolyzing antimony trichloride to produce antimony trioxide. In a preferred embodiment, the process is substantially closed or near-closed loop. Antimony trioxide is a known flame retardant for use in plastics, ceramics

ESEBE Manufacturer of Antimony trioxide Sb2O3

Antimony trioxide (Sb 2 O 3) Antimony trioxide Sb 2 O 3 is made with a chemical that comes from the oxidation of antimony metal.. It is white when cold and yellow when hot. Among other properties should be noted that is a flame retardant, that is, costs that burn when flame is applied.

Features of Antimony Trioxide as Catalysts Nihon Seiko

Antimony compounds are excellent catalysts to accelerate the polymerization in polyester manufacturing. Antimony trioxide is the most widely used polymerization catalyst in both domestic and overseas markets in the manufacture of polyethylene terephthalate(PET)from ethylene glycol(EG)and high purity terephthalic acid(TPA), or dimethyl terephthalete(DMT).

Antimony Trioxide Applications and Specifications

2012-5-12  Antimony trioxide dissolves in aqueous solutions only with hydrolysis. Antimony trioxide is an amphoteric oxide and it exhibits redox nature, it can be readily oxidized to antimony pentoxide and related antimony (V) compounds, but it is also easily reduced to antimony, sometimes with production of stibine.

Process for Preparing the Draft RoC Monograph on

2021-9-5  Process for Preparing the Draft RoC Monograph on Antimony Trioxide Ruth M. Lunn, DrPH properties, uses, production, exposure, and regulations to limit exposure • Each edition of the report is cumulative • Antimony trioxide is converted in vitro and in vivo to other

The Facts about PET Petcore Europe

2018-9-21  Antimony Antimony trioxide is the major catalyst used to polymerise PET. In principle, the catalyst will remain in the PET after polymerisation. Typically, concentrations of antimony in PET bottles are below of 300 mg per kg PET (Welle and Franz 2011). Alternative catalysts for the polymerisation of PET have also been

#ChemicalCallout: Polyethylene Terephthalate (PET or PETE)

2019-7-30  Antimony trioxide is commonly used as a catalyst in the production process. Antimony trioxide is classified as possibly carcinogenic, and some forms are

(PDF) Antimony Production and Commodites

Antimony is a silvery, white, brittle, crystalline solid classi fied as a metalloid that exhibits poor. conductivity of electricity and heat. In the Western world, it was first isolated by

Antimony and PET bottles: Checking facts ScienceDirect

2020-12-1  The manufacturing process of bottles includes two steps. In the first step, the PET bottle preforms are injection moulded and cooled to room temperature so that the preform is virtually amorphous. In the second step, the preforms are re-heated to a temperature above T g and stretch blow moulded into bottles.

Process for producing antimony trioxide Roycefield

1996-9-12  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.

A novel production method of antimony trioxide from

2021-9-1  Tang and Jin (2007) have studied the production of antimony trioxide from antimony concentrate bearing high copper by pyrochemical process (1150–1350 °C) in a blast furnace, wherein the formation of antimony trioxide was facilitated through volatilization. Inevitably, the pyrochemical process is a severe source of environmental pollution and

ESEBE Manufacturer of Antimony trioxide Sb2O3

Antimony trioxide (Sb 2 O 3) Antimony trioxide Sb 2 O 3 is made with a chemical that comes from the oxidation of antimony metal.. It is white when cold and yellow when hot. Among other properties should be noted that is a flame retardant, that is, costs that burn when flame is applied.

Features of Antimony Trioxide as Catalysts Nihon Seiko

Antimony compounds are excellent catalysts to accelerate the polymerization in polyester manufacturing. Antimony trioxide is the most widely used polymerization catalyst in both domestic and overseas markets in the manufacture of polyethylene terephthalate(PET)from ethylene glycol(EG)and high purity terephthalic acid(TPA), or dimethyl terephthalete(DMT).

Report on Carcinogens Monograph on Antimony Trioxide

Antimony trioxide (Sb2O3) is a synergist in flame retardants, a catalyst in polyethylene terephthalate (PET) production, and a material used in various industrial process and consumer goods. Antimony trioxide is a potential public health concern because of occupational exposure and a suggested association with cancer based on animal studies.

Industrial Minerals

ANTIMONY MONTHLY REVIEW OCTOBER: Tightening metal, trioxide supply. Monday, 18 October 2021. The antimony metal and trioxide markets remained tight, with China’s environmental checks the main factor pushing the prices up; some market players hope that smelters in Hunan, China, could reopen at the end of October, easing supply.

#ChemicalCallout: Polyethylene Terephthalate (PET or PETE)

2019-7-30  Antimony trioxide is commonly used as a catalyst in the production process. Antimony trioxide is classified as possibly carcinogenic, and some forms are potentially endocrine disrupting. Researchers have found antimony at detectable levels in

The Facts about PET Petcore Europe

2018-9-21  Antimony Antimony trioxide is the major catalyst used to polymerise PET. In principle, the catalyst will remain in the PET after polymerisation. Typically, concentrations of antimony in PET bottles are below of 300 mg per kg PET (Welle and Franz 2011). Alternative catalysts for the polymerisation of PET have also been

A New Pyrometallurgical Process for Producing Antimony

2021-10-29  The oxygen bottom blown bath smelting process is a newly developed intensifying smelting process, which has been widely applied to copper [1,2], lead

Semiconductor Manufacturing Processes Haz-Map

Process Name. Semiconductor Manufacturing. Description. Chemical exposures in the fabrication of integrated circuits or "chips" occur in: 1.) wafer manufacturing with potential release of toxic gases such as arsine, diborane, and phosphine; 2.) fabrication of semiconductors including oxidation, photolithography, etching, and doping; and 3

Process for producing antimony trioxide Roycefield

1996-9-12  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.

A novel production method of antimony trioxide from

2021-9-1  Tang and Jin (2007) have studied the production of antimony trioxide from antimony concentrate bearing high copper by pyrochemical process (1150–1350 °C) in a blast furnace, wherein the formation of antimony trioxide was facilitated through volatilization. Inevitably, the pyrochemical process is a severe source of environmental pollution and

Antimony trioxide_Jiangyin Hanfeng Technology Co., Ltd.

2020-11-4  Antimony Trioxide Introduction: Antimony trioxide is one of our company's main products, all of which use the original mines in the Lengshuijiang area of Hunan Province, using advanced production techniques and scientific production processes, complete inspection methods, in strict accordance with national standards (GB/T 4062-2013) Production and sales of national standard quality products.

Industrial Minerals

ANTIMONY MONTHLY REVIEW OCTOBER: Tightening metal, trioxide supply. Monday, 18 October 2021. The antimony metal and trioxide markets remained tight, with China’s environmental checks the main factor pushing the prices up; some market players hope that smelters in Hunan, China, could reopen at the end of October, easing supply.

#ChemicalCallout: Polyethylene Terephthalate (PET or PETE)

2019-7-30  Antimony trioxide is commonly used as a catalyst in the production process. Antimony trioxide is classified as possibly carcinogenic, and some forms are potentially endocrine disrupting. Researchers have found antimony at detectable levels in

Antimony Trioxide (Properties, Uses) Assignment Point

2021-12-1  Antimony trioxide (Antimony(III) oxide) is an inorganic compound with the formula Sb 2 O 3, which, along with antimony tetroxide and antimony pentoxide, is the current trio of antimony-oxygen compounds with industrial applications.Antimony is present in nature as the minerals valentinite and senarmontite, and it is the most common industrial compound of antimony.

Glass Manufacturing Processes Haz-Map

[Kanerva, p. 956-7] Studies of batch mixers and oven chargers in the art glass industry found arsenic levels always higher than the current TLV-TWA. Arsenic trioxide and antimony trioxide are used as fining agents. [Multiple Exposure to Arsenic, Antimony, and Other Elements in Art Glass Manufacturing. PMID 9617389] See the Activity, "Glassblowing."

A New Pyrometallurgical Process for Producing Antimony

2021-10-29  The oxygen bottom blown bath smelting process is a newly developed intensifying smelting process, which has been widely applied to copper [1,2], lead

Antimony and PET bottles: Checking facts ScienceDirect

2020-12-1  The manufacturing process of bottles includes two steps. In the first step, the PET bottle preforms are injection moulded and cooled to room temperature so that the preform is virtually amorphous. In the second step, the preforms are re-heated to a temperature above T g and stretch blow moulded into bottles.

A New Procedure for the Preparation of Antimony of High

2019-11-6  Computation-assisted analyzing and forecasting on impurities removal behavior during zone refining of antimony. Journal of Materials Research and Technology 2020,9 (2),1221-1230.