removing phosphorus from steel

Phosphorous Removal - Dresseltech

2011-4-27  double effect of lowering the steel temperature and increasing the oxygen content. Sufficient weight of CaO in the slag must be available to bind the P 2 O 5 as it comes out of the liquid steel. Phosphorous removal efficiency by an oxidizing slag is characterized by a partition ratio, that is the weight of phosphorous in the slag divided by

Removal of Phosphorus from Steelmaking Slags: A

2018-6-9  steel products require extremely low phosphorus contents. Since North American iron ores and pellets are, in general, low in phosphorus (0.02-0.07%), much of the phosphorus comes from recycled steelmaking slag. It is reduced in the blast furnace and virtually all of the phosphorus reports to the hot metal. In steelmaking,

Mechanisms for the Removal of Calcium Phosphate

2016-2-22  This work investigates the mechanisms for the removal of calcium phosphate deposits from stainless steel tubing in turbulent flows. Two types of deposits were analyzed: brushite (dicalcium phosphate dihydrate, DCPD) and a mixture of DCPD/hydroxyapatite (HAP). Cleaning studies were carried out at pHs ranging from 2.85 to 10. The data were analyzed by means of a mathematical

Removal of phosphorus from induction melted

2017-2-2  Dephosphorisation of Induction Melted steel The manufacture of coal based DRI began in India in 1984 in the units set up by SIIL and OSIL. ... Removal of phosphorus

PHOSPHORUS AND SULFUR IN STEELMAKING: III.

2018-8-18  Download Citation on ResearchGate PHOSPHORUS AND SULFUR IN STEELMAKING: III. REMOVING PHOSPHORUS FROM CARBON STEELS. In U. S. shops which face phosphorus problems, three pragmatic approaches ...

Desulfurization of steel [SubsTech]

Desulfurization may be effectively conducted in the reducing slag stage of the steel making process in Electric-arc furnace. At this stage the oxidizing slag is removed and then lime flux is added to form basic slag with high CaO content. Deep desulfurization by slags may be achieved in ladle:

Phosphorus Wholesale, Chemicals Suppliers - Alibaba

Phosphorus in the steel industry as an alloying agent, iron alloy additives for use in the metallurgical and deoxidizer. Mainly used for alloy agent and deoxidizer in the metallurgical industry special steel. Used for the production of phosph ate products in the stone products.

Steel Slag Filters to Upgrade Phosphorus Removal in ...

2018-8-13  Electric arc furnace steel slag (EAF-slag) and basic oxygen furnace steel slag (BOF-slag) were used as filter substrates in two horizontal subsurface flow filters (6 m3 each) designed to remove phosphorus (P) from the effluent of a constructed wetland. The influences of slag composition, void hydraulic retention time (HRTv), temperature, and wastewater quality on treatment performances were ...

CAS IR GRID: Phosphorus removal by laboratory-scale ...

This research aimed to investigate the phosphorus (P) removal of a series of laboratory-scale unvegetated vertical-flow constructed wetland systems using anthracite, steel ...

Removing phosphorus from iron - National Research ...

1984-9-4  A method of removing phosphorus from iron to a desired level, consisting essentially of: ... For a charge containing, for example, up to 0.05% phosphorus where the specification for the resulting steel is maximum 0.015% phosphorus, or for a charge containing up to 0.08% phosphorus--steel specification maximum 0.025% phosphorus, ...

removing aluminium and phosphorus fro iron ore

removing aluminium and phosphorus fro iron ore. The removal of phosphorus from iron ore by leaching with ... A hydrometallurgical method for the removal of phosphorus from iron ore is presented. The apatite content (∼ 1%) of a Swedish ore is removed (> 95%) by leaching the ore with nitric acid.

removing aluminium and phosphorus fro iron ore

The method of purification of iron ore concentrate from ... Limited phosphorus removal is achieved by grinding and magnetic separation, partly technically possible, so this technology is the removal of phosphorus from iron ore as a result, Therefore, the mechanical methods cannot remove it until the contents, satisfying the

Phosphorus Removal - AZU Water

Phosphorus removal from wastewater can be achieved either through stone removal, involving the addition of calcium (lime), iron (ferric chloride) and aluminium salts (aluminium polychloride), advanced biological treatment, involving heterotrophic bacteria, called polyphosphate accumulating organisms (PAO) or a combination of both.

Desulfurization of steel [SubsTech]

Desulfurization may be effectively conducted in the reducing slag stage of the steel making process in Electric-arc furnace. At this stage the oxidizing slag is removed and then lime flux is added to form basic slag with high CaO content. Deep desulfurization by slags may be achieved in ladle:

Basic oxygen steelmaking - Wikipedia

2019-3-1  Basic oxygen steelmaking (BOS, BOP, BOF, or OSM), also known as Linz–Donawitz-steelmaking or the oxygen converter process[1] is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel. The ...