CYANIDE in WATER and SOIL: Chemistry, Risk, and Management - Chapter 2 pdf

... of Chapter 12. 2 Cyanide in Water and Soil contamination in water and soil. This book presents current scientific understanding and engineering approaches for managing water and soil contamination ... Compounds in Nature 5 1.4.1 Cyanide in Outer Space 5 1.4 .2 Hydrogen Cyanide in Earth’s Atmosphere 5 1.5 Cyanide in Industry 6 1.6 Cyanide Releases to Wa...

Ngày tải lên: 11/08/2014, 20:20

... Complexes 19 2. 2 .2. 2 Strong Metal Cyanide Complexes 19 2. 2.3 Cyanate and Thiocyanate 19 2. 2.4 Organocyanide Complexes 20 2. 3 Solid Forms of Cyanide 20 2. 3.1 Simple Metal Cyanide Solids 21 2. 3 .2 Metal–Metal ... Metal–Metal Cyanide Solids 21 2. 3 .2. 1 Alkali/Alkaline Earth Metal–Metal Solids 21 2. 3 .2. 2 Other Metal–Metal Cyanide Complex Salts 22 2. 4 Summar...

Ngày tải lên: 11/08/2014, 20:20

... Global and U.S. Production 49 4.1.4 .2 Production Methods 50 4 .2 Incidental Industrial Production of Cyanide 51 4 .2. 1 Coking and Gasification of Coal 52 4 .2. 2 Blast Furnace Operations 52 4 .2. 3 Aluminum ... 52 Cyanide in Water and Soil 4 .2. 1 COKING AND GASIFICATION OF COAL The coking operation involves distillation of coal by indirectly heating the coal in the ab...

Ngày tải lên: 11/08/2014, 20:20

... 2Cu(CN) 2 3 +2CNO − +2O 2 (5 .28 ) 2Cu(CN) 2 3 +O 3 +2H + → 2Cu(CN) − 3 +O 2 +H 2 O (5 .29 ) 2Cu(CN) − 3 → 2Cu(CN) − 2 +(CN) 2 (5.30) 2Cu(CN) − 2 +4CN − = 2Cu(CN) 3− 4 (5.31) (CN) 2 +2OH − → CN − +CNO − +H 2 O (5. 32) The reaction in Equation (5 .28 ) ... Fe(CN) 3− 6 52. 63 2Fe 2+ +6CN − = Fe 2 (CN) 0 6 56.98 2K + +Fe 2+ +2H + +6CN − = K 2 H 2 Fe(CN) 0 6 52....

Ngày tải lên: 11/08/2014, 20:20

... [2; and Chapter 25 ]. Chemical forms of cyanide in the envir- nitriles, and organic cyanides (Chapter 2) . and HCN [9; and Chapter 5]. cyanide analytical method [2; and Chapters 5 and 7]. 304 Cyanide ... C 4 H 7 N 69. 12 26. 02 37.64 Potassium cyanide KCN 65. 12 26. 02 39.96 Propionitrile C 3 H 5 N 56.10 26 . 02 46.38 Sodium cyanide NaCN 49.01 26 . 02 53...

Ngày tải lên: 11/08/2014, 20:20

... 92. 0 Virginia Freshwater 5 .2 Total cyanide Saltwater 1.0 Total cyanide Vermont Acute 22 .0 Chronic 5 .2 Wyoming Special A waters 5.0 Wisconsin Great Lakes 22 .4 Free cyanide Cold water 22 .4 Free cyanide Warm ... developed in most other industrial- ized countries for managing discharges of contaminants to water and land, for establishing acceptable concentrations of con...

Ngày tải lên: 11/08/2014, 20:20

... alkaline     Aluminum industry — SPL e chlorination treatment High pressure and temperature     Aluminum industry — SPL e alkaline hydrolysis treatment Incineration    Aluminum ... technology and overall compliance with requisite regulatory limits. The following two © 20 06 by Taylor & Francis Group, LLC are presented in Chapters 26 and 27 . In a given cya...

Ngày tải lên: 11/08/2014, 20:20

... would be pH controlled. Tables 20 .2 and 20 .3 present operating parameters and under thermal technologies in Chapter 22 . 4 02 Cyanide in Water and Soil TABLE 20 .4 Tailings Slurry Characteristics after ... weak metal cyanide complexes occurs according to the following reactions: M(CN) 2 4 +4H 2 O 2 +2OH − Cu catalyst −→ 4CNO − +4H 2 O + M(OH) 2 (s) (20 . 12)...

Ngày tải lên: 11/08/2014, 20:20

... 0.110 1999 0. 52 0.66 0.53 0.144 0.141 0.146 0.170 0.1 82 0.196 20 00 0.39 0.51 0.43 0 .21 0 0 .20 4 0 .20 3 0 .28 0 0.169 0 .20 9 20 01 0.63 0. 62 0.67 0.3 82 0. 322 0.356 0 .25 1 0 .23 6 0 .22 4 20 03 0.69 0.80 0. 72 0.559 ... 0.31 0 .27 0.33 1995 1.76 1.66 1.71 0.16 0.15 0 .20 0.35 0.38 0.37 1996 2. 03 1. 62 1. 62 0 .20 0.18 0.19 0.43 0.38 0.45 1999 2. 53 2. 15 2. 33 0 .20 0....

Ngày tải lên: 07/08/2014, 10:22

... is (N A +Ln)Rn Z 2 -4 000 -2 000 0 20 00 4000 -1 -0 .8 -0 .6 -0 .4 -0 .2 0 Rb= 120 000 oscil Z=0 (c) (N A +Ln)Rn Ra c -4 000 -2 000 0 20 00 4000 -4 000 -2 000 0 20 00 4000 6000 8000 Rb= 120 000 non-oscil Rb= 120 000 oscil (a) (N A +Ln)Rn m c -4 000 ... 5 2 2 41 525 52 2 2 2 22 ImiLe m i Lb m i Le    Le     (A2) FAmPr mi miLn ILeIAIm 31...

Ngày tải lên: 21/06/2014, 06:20