ferrochromium sulphur content

Sulphur effect on the tensile strength of ASTM A101

a sulphur value half as much again as that of the initial burden The sulphur in the primary metal initially formed in the charge layer is as high as 0 080 per cent but with the higher carbon and silicon contents ofthe metal in the ferrochromium with a low carbon content by desiliconiz­

A Comprehensive Analysis of the Furnace Interior for High

Cost analysis of chrome ore reduction is one of the important issues facing ferrochrome producers in today s competitive environment Much of this depends on quality and various ratios in the actual ore The latter can have a direct bearing on electricity consumption and optimum efficiency of the furnaces While the industry has been successful in reducing costs by designing larger and more

Ferrochrome - an overview ScienceDirect Topics

Jul 07 2004· Does anyone know if the sulphur content of ASTM A101 would affect it s UTS in any way The S range is 0 05 to 0 001 RE Sulphur effect on the tensile strength of ASTM A101 ASTM A 101 is a Standard Specification for Ferrochromium used as steel stainless steel alloying additives There are high and low carbon grades RE Sulphur effect on

partial pressure of oxygen The effect of sulphur partial pressure was not clear Conclusions The experimental data on slag-metal equilibrium for ferrochromium smelting and on chromium distribution between slag and matte phases encountered in sulphide smelting of PGM Platinum Group Metals and chromium containing copper nickel

Reductant selection in ferro-alloy production The case

US3158464A US282607A US28260763A US3158464A US 3158464 A US3158464 A US 3158464A US 282607 A US282607 A US 282607A US 28260763 A US28260763 A US 28260763A US 3158464 A US3158464 A US 3158464A Authority US United States Prior art keywords alloy chromium silicon low slag Prior art date 1963-05-23 Legal status The legal status is an assumption and is not a legal …

Sulfur distribution between a slag and a metal in melting

CHROME OXIDE PRODUCT IDENTIFICATION CAS NO The principal uses of chromium are in the metallurgical processing of ferrochromium and other metallurgical products to impart corrosion resistance chiefly stainless steel or sodium dichromate by heating with sulfur C hromic oxide is a dark green amorphous powder forming hexagonal

Products Information Archives - Cheegoole

Apr 10 1984· A process for the production of ferrochromium by smelting chromite ore and in which ferrochromium fines may form a part of the feed materials or for the further treatment of ferrochromium fines alone in each case in the presence of a …

Document Center Inc Your Online Library of US and

A furnace in which pig iron is converted into steel by the bessemer process Abstract it probes into main factors affecting sulphur content in medium carbon ferrochromium in converter practice points out measures to decrease the sulphur content

Highly efficient utilization of hazardous vanadium

the coal sulphur content 3 This expression aims to account for the catalytic effect of some oxides notably iron oxide and CaO on the reaction with CO2 The strong effects of iron oxide and free lime to increase coke reactivity were also illustrated in work where various minerals containing these compounds were …

Carbothermic Reduction and Desulphurization of Chromite

In the production of many chromium-containing iron alloys it is highly desirable to employ ferrochromium having a low content of both carbon and sulfur In the present state of the art ferrochromium of low-carbon low-sulfur content is prepared by a silicon reduction process

ferrochromium ferrochromium …

Thermodynamic analysis of the sulfur distribution between a slag and a metal in melting of carbon ferrochromium is performed The maximum distribution coefficient of sulfur between the slag and the metal is shown to be reached at a CaO content of 4-6 in the slag

Sulfur distribution between a slag and a metal in melting

In order to promote public education and public safety equal justice for all a better informed citizenry the rule of law world trade and world peace this legal document is hereby made available on a noncommercial basis as it is the right of all humans to know and speak the laws that govern them

E Christodoulou s research works

Method for chemical analysis of ferrochromium -- Part 5 Determination of sulfur content Foreign Standard Our policy towards the use of cookies Techstreet a Clarivate Analytics brand uses cookies to improve your online experience They were placed on your computer when you launched this website

Plenary Address Technical Trends in Ferrochromium

America National Resources Corporation is a world-class supplier of a wide range of raw materials and commodities to industrial enterprises With world scale industrial players as shareholders and business partners we are a preeminent distributor of iron ore chrome ore ferrochromium coal and

AOD

E Christodoulou s 4 research works with 82 citations and 249 reads including Lead sulphide leaching kinetics in nitric acid solutions

Ferrochrome - Wikipedia

Search Document Center s online database of US and international standards place orders for documents learn about the Ferrochromium and ferrosilicochromium - Determination of chromium content - Potentiometric method Determination of sulfur content - Infra-red absorption method after induction furnace combustion ISO-7527 - Nickel

Production of ferrochromium - UNION CARBIDE CARBON CORP

sis of ferrochromium is covered in a series of parts of this standard With the publication of these parts the analysis of relevant constituent prescribed for ferrochromium in IS 1559 1961 will be superseded This part covers the method for determination of sulphur in high and low carbon ferrochromium

PDF GB T 4699 6-2008 - English - Chinese Standard

ferrochromium is manufactured as lumps or pigs the amount of small material screened through screen openings 20 x 20 mm shall not exceed 10 of the batch mass for the high-carbon ferrochromium and 5 - for the low-carbon nitrogenized ferrochromium and medium-carbon ferrochromium 1 3 2 Ingredients

Ferrochrome - an overview ScienceDirect Topics

Feb 05 2012· The chromium content ranges from 34 to 42 that of silicon from 38 to 45 and that of carbon from 0 05 to 0 06 The mix order is similar to that of smelting high-carbon ferrochromium except that it requires a source for additional silicon It is produced by …

PDF EFFECT OF CHROME ORE QUALITY ON FERROCHROME

Ferrochromium is produced or treated with a limited amount of carbonaceous reductant by feeding the materials to the reaction zone of a furnace and heated therein in the substantial absence of oxygen by a transferred arc thermal plasma The feed materials are chosen to ensure that the slag liquidus temperature is not substantially higher than the metal liquidus temperature

Production and treatment of ferrochromium - Council for

Synchronism of the content change of these gases and voltage of the plasmatrons in the course of a melt should be noted In melting of the ferrochromium wastes the charge was used in the state in which it was supplied PF-1 or was subjected to calcination at the temperature 800 degrees C that caused reduction of its mass by 5

Investigation of plasma-slag processes in special and

Dec 01 2011· Thermodynamic analysis of the sulfur distribution between a slag and a metal in melting of carbon ferrochromium is performed The maximum distribution coefficient of sulfur between the slag and the metal is shown to be reached at a CaO content of 4-6 in the slag

WO1983001461A1 - Process for the production of

This part is GB T 5687 8-1988 Methods for chemical analysis of ferrochromium The infrared absorption method for the determination of sulfur content GB T 5687 9- 1988 Methods for chemical analysis of ferrochromium determination of sulfur content and combustion titration method GB T 4699 6-1988 silicon alloy chemical analysis method

medium and low carbon ferrochromium …

Abstract it probes into main factors affecting sulphur content in medium carbon ferrochromium in converter practice points out measures to decrease the sulphur content 。 9

JIS G 1313-5 2012

However the sulphur content entering the metal phase was still far beyond the requirements of the Chinese national standard Therefore in order to obtain high carbon ferrochromium product with low sulfur content the VETHC with high sulfur content need to be pretreated to remove part of sulfur

CHROME OXIDE CHROMIUM OXIDE GREEN PIGMENTS

Ferrochrome or Ferrochromium FeCr is a type of ferroalloy that is an alloy between chromium and iron generally containing 50 to 70 chromium by weight Ferrochrome is produced by electric arc carbothermic reduction of chromite Most of the world s ferrochrome is produced in South Africa Kazakhstan and India which have large domestic chromite resources