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pyrrhotite

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Published: 01 January 2003
Fig. 5 Flotation of pyrrhotite as a function of contact time with glass, mild steel (MS) and austenitic stainless steel in air-exposed distilled water at natural pH unless indicated otherwise. Comparison of MS in bubbled environment given. Source: Ref 14 More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003629
EISBN: 978-1-62708-182-5
... Abstract This article describes the methods of wear measurements and a model of corrosive wear in mill atmospheres. It explains the polarization curves of pyrrhotite and high-carbon low-alloy steel in a quartzite slurry with examples. The surfaces of pyrrhotite in contact with mild steel...
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Published: 01 January 2003
Fig. 6 Combination potentials and galvanic currents of a short-circuited pyrite-pyrrhotite-mild steel (MS) electrode under abrasion in a quartzite slurry in a 0.05 M sodium sulfate solution at neutral pH under oxygen atmosphere. Pyrrhotite, Po. Pyrite, Py. Source: Ref 20 More
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Published: 01 January 2003
Fig. 4 Polarization curves. Estimation of corrosion current ( i corr ) for the pyrrhotite (Po)-high-carbon low-alloy (HCLA) steel electrodes under abrasion in a quartzite slurry by adjusting to the surface area ratio of ground pyrrhotite and HCLA steel balls. SCE, saturated calomel electrode More
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Published: 01 January 2003
Fig. 3 Wear of mild steel (MS), high-carbon low-alloy steel (HCLA), and austenitic stainless steel (SS-A) balls as a function of pyrrhotite addition under different aeration conditions. Source: Ref 10 More
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Published: 01 January 2003
Fig. 10 The effect of chromium contents on the wear of ball materials in wet grinding of quartzite (Qz), quartzite with either 5% pyrrhotite (Po) or 5% chalcopyrite (Cp) slurries in the presence and absence of oxygen. Source: Ref 24 More
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Published: 01 January 2003
Fig. 11 Batch flotation results using potassium ethyl xanthate (KEX) on a quartzite with 5% pyrrhotite mixture ground with various cast iron ball materials under (a) nitrogen or (b) oxygen atmosphere. Source: Ref 24 More
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Published: 01 January 2003
Fig. 7 Polarization curves. Estimation of corrosion currents ( i corr ) for pyrite (Py)-mild steel (MS), pyrrhotite (Po)-MS, and Py-Po-MS systems under abrasion in a quartzite slurry by adjusting to the surface area ratios of ground minerals and steel balls. Numbered points are discussed More
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006415
EISBN: 978-1-62708-192-4
... currents of pyrite, pyrrhotite, and mild-steel electrodes were determined in short-circuit connections under abrasive and nonabrasive conditions ( Ref 63 , 64 , 65 ). Figure 16 shows a device developed for tests performed under abrasive conditions, consisting of a porcelain ball rotating against three...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003567
EISBN: 978-1-62708-180-1
.... , and Newman R.C. , The Corrosive Wear of Cast Iron Under Potentiostatically-Controlled Conditions in Sulfuric Acid Solutions , Corros. Sci. , Vol 30 , 1990 , p 813 – 830 4. Pozzo R.L. and Iwasaki I. , Pyrite-Pyrrhotite Grinding Media Interactions and Their Effects on Media Wear...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004142
EISBN: 978-1-62708-184-9
... chloride … FeCl 3 Green Phosphates  Iron phosphate octahydrate Vivianite Fe 3 (PO 4 ) 2 ·8H 2 O Dark blue (or white)  Iron phosphate dihydrate Strengite FePO 4 ·2H 2 O Pink Sulfides  Iron sulfide Pyrrhotite Fe 1− x S ( x =0–0.2) Yellow-brown  Iron sulfide Mackinawite...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004210
EISBN: 978-1-62708-184-9
... be sustained beneath thick but porous iron sulfide deposits (primarily pyrrhotite, FeS 1.15 ) because the FeS surface is an effective cathode. The anodic reaction beneath the FeS deposit is dependent on the presence of a thin layer of concentrated iron chloride (FeCl 2 ) at the Fe/FeS interface...