Ding Xinda activated carbon use

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Asked at 2021-12-13 00:44:20

2.1.3 Determination of ash content. Put 150mL porcelain cyanosis pot in muffle furnace, burn it at (65020) "℃ to constant weight, put the cyanosis pot in dryer, cool and weigh; Weigh 5 grams of the crushed sample (approximately 0.1mg) and place it in 150mL porcelain coating that has been burned to constant weight; Put Zengtan into a muffle furnace whose temperature does not exceed 300℃, open the cyanosis cap, and gradually increase the temperature to a constant weight at 650 ℃ 20℃. It takes about three hours. Calculate ash value and get ash content.activated carbon for gold recovery 

2.1.4 Determination of methylene blue adsorption value. The crushed sample was weighed with 1.0 grams (approximately to 1mg) and placed in a 100mL grinding stopper conical flask. An appropriate amount of methylene blue test solution was added with an eyedrot. The filtrate was placed in a colorimetric dish with a light diameter of LCM, and the absorbance was measured with a spectrophotometer at a wavelength of 665nm. The absorbance was compared with the absorbance of the standard cupric sulfate filter. The number of ml of methylene blue test solution consumed was the methylene blue adsorption value of the sample. activated carbon wholesale  


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