Ultrafine grinding is used to liberate gold finely disseminated in metallic sulfides. KCGM is the first gold mine using ultrafine grinding followed by cyanidation (Ellis and Gao, 2002 ). The gold sulfide concentrate is grind with an IsaMill to a P 80 of 10–12 μm.

During ultrafine grinding treatment, the ferrous chelating activity and reducing power remarkably increased compared to DFBG. The increase of TPC, ferrous chelating activity and reducing power after grinding are probably on account of the ultrafine grinding treatment which changed or damaged the fiber matrix, thus causing some phenolic ...

Furthermore, the ultrafine grinding treatment for 6 h did not change the α-helix and random coil compositions of SPI. Above the results, the ultrafine grinding time could alter the secondary structure of SPI. It suggested that the blended effect of intense shear and heat produced during ultrafine milling transformed the protein conformations.

For the blank test, the three measurement results of the product after 3 h of ultrafine grinding are shown in Table 2. Table 2 Three times parallel values of product indicators used in …

One proposed solution is an ultrafine grinding process of the ore, e.g., González-Anaya et al. [55] use a ground ore with 80% of particles (P80) …

The ultrafine grinding treatment partially reduced the size and the molecular weight of oat β-glucans, but enhanced the extraction of high M w oat β-glucans. SEM images of OPH-1 and OPH-2 revealed that they had fibrous structures and particulate fractions in common, and a higher magnification of oat hydrolyzate showed thread-like granule ...

With a reduced particle size, the solubility of ultrafine powders increased significantly (P < 0.05), whereas the water holding and swelling capacities decreased with a reduced particle size and then increased. Fourier transform infrared spectroscopy analysis showed that ultrafine grinding did not damage the main cellular structure of GS powder.

Zhu et al. (2014) evaluated the effect of ultrafine grinding on wine grape pomace and obtained powders with particle sizes ranging from 0.38 to 29.91 μm. In general, the soluble fraction of ...

Effect of ultrafine grinding on dissolving-out quantity of tanshinone IIA from Radix salvia miltiorrhiza. Yanli Su 1,2, Zhengyi Fu 2, Peiyan Ma 2, Weimin Wang 2 & Jinyong Zhang 2 Journal of Wuhan University of Technology-Mater. Sci. …

Abstract This paper shows that mechanical ultrafine grinding of poplar wood is an efficient pretreatment approach to enhance its reactivity during liquefaction. The microstructural features and chemical properties of biomass samples with different particle morphology were studied. In particular, we found that more cellulose and hemicellulose were exposed on the …

Ultrafine grinding is another method used to decrease grain flour particle size, while jet milling is an important alternative to the ultrafine grinding technique that is used to significantly reduce the flour particle size. Jet milling is a fluid energy impact-milling process that produces small particles (<10 μm) with a large surface area ...

Ultra-fine grinding of the concentrate (i.e. d80 from 80 µm to 4.2 µm) further improved leaching of gold and silver i.e. up to 83% Au and 70% Ag even at 1.5 g/L NaCN. Under suitable conditions i ...

The main objective of this research was to study the effects of ultrafine grinding and pulsed magnetic field (PMF) treatment on free gossypol (FG) content in cottonseed meal (CSM). The results revealed that FG content decreased from 831 to 584 mg kg−1 after CSM was ultrafine ground with an airflow crusher. A further decrease of FG content was achieved by processing …

Ultrafine grinding of wheat flour: Effect of flour/starch granule profiles and particle size distribution on falling number and pasting properties Food Sci Nutr. 2020 May 1;8(6):2581-2587. doi: 10.1002/fsn3.1431. eCollection 2020 Jun. Authors Erqi Guan 1 ...

Ultrafine grinding of traditional Chinese medicine is widely used, such as wolfberry, Shouwu, American ginseng, licorice, pollen, Ganoderma lucidum, hawthorn nucleus, animal bones, minerals and hundreds of traditional Chinese medicine products can be ultrafine grinding.

This modern ultrafine grinder has large output, low noise, convenient cleaning, sturdiness and durability. It is in line with the current trend of ultrafine grinding of materials and has become the new darling of current fashion. The ultra-fine grinder is especially suitable for ultra-fine grnding of dry materials and hard materials.

Effects of ultrafine grinding on physicochemical, functional and surface properties of ginger stem Journal of the Science of Food and Agriculture ( IF 3.638) Pub Date :, DOI: 10.1002 Xiaoyan Zhao, Ang Meng, Xiaowei Zhang, Hongkai Liu, Dongju Guo, Yunping Zhu

Ultrafine grinding use of mechanical force or fluid dynamics to overcome the internal cohesive force of the solid to break it. In the process of ultrafine grinding, the soybean by-products are modified by friction, extrusion, collision and other forces [9] (Xiang Z. N., 2006). Ultrafine grinding was based on the principle of micron technology.

Effect of ultrafine grinding on physicochemical and antioxidant properties of dietary fiber from wine grape pomace Feng-Mei Zhu, Bin Du, and Jun Li Food Science and Technology International 2013 20 : 1, 55-62

Effect of ultrafine grinding on physicochemical and antioxidant properties of dietary fiber from wine grape pomace Food Sci Technol Int. 2014 Jan;20(1):55-62. doi: 10.1177/10820. Epub 2013 Jun 3. Authors Feng-Mei Zhu 1, Bin Du, Jun Li. Affiliation 1 1College of Food ...

The ultrafine grinding technique is an emerging technology that can produce a narrow and relatively homogenous particle size distri - bution with good surface properties, decent dispersibility in foods, and excellent absorption in the body (Tkacova & Stevulova, 1998; Zhao et al., 2009). Therefore, ultrafine grinding is particularly desir-