The high content of gold, platinum and palladium precious metals is quickly dissolved with aqua regia and salt thinner. After filtration with anhydrous ethanol, the metal content is adjusted to 100G/L with water, adjusted to 1.5MOL with hydrochloric acid, and the solution is oxidized with oxidant. extraction, not at this time a total of DBC crafts platinum palladium iridium, S201 not co-extraction of platinum iridium, N235 is not a total extraction of iridium, the extraction process is smooth, the experiment in two ways at the factory in Shenzhen Jiang (but also in experiments at home, with DDO , brilliant green, to detect trace platinum iridium, palladium iodine method, telephone reported data) extraction.
First, after dissolving anhydrous ethanol in Wangshui, the nitrate is filtered, the content is adjusted, and the acid is directly extracted. The result is that S201 extracts palladium slowly (10 minutes), some palladium is difficult to extract, and a small amount of platinum is co-extracted.
The second is the rapid dissolution of Wangshui and salt thinner. After filtering with sodium hydroxide, the content is adjusted, the acid is adjusted, and the oxidant is added for 10 minutes. The machine is extracted. After repeated experiments, the extraction of gold, platinum, palladium and rhodium is very Thoroughly, especially S201 extracts palladium quickly (3.5 minutes), palladium has no residue in the night of extraction, and platinum is not co-extracted. This has become the principle of extracting and refining gold, platinum and palladium.
Xinxiang Lifeierte Filter Co., Ltd is specialized in manufacturing filter elements, filter housing, filter equipment, testing equipment and hydraulic parts.She is located in Xinxiang that is the center of filtration in China.Xinxiang Lifeierte Filter Co., Ltd integrates with oil filtration, water treatment and air purification to provide the society with more professional service and meet customers` demands. What`s more, Lifeierte has top-notch R&D team, professional technical team, effective production network and perfect after-sales service system. The corporate philosophy of Lifeierte is [to purify environment, to serve society, to manage faithfully,and to pursue excellence". The company also established the comprehensive cooperative relations with some famous design & research institutions and colleges. The quality of the product has reached the international advanced level and makes us achieve remarkable economic benefits.
Products
Mainly including:
National standard filters and filter elements, replacement of abroad filters and filter elements, the hydraulic equipment like oil filter machines and filter series, the filter detective equipment;
Compressed air filters and filter elements, air cleaning filter drums and filter-bag series, various kinds of air cleaning facilities in different patterns;
Kinds of water treating equipment like stainless steel water filters and filter elements, full automatic backwashing filters.
We carry out ISO, DIN, IDF and 3A industry standard strictly during the manufacturing process and all the products can conform to the standards of GMP.
The endeavor makes us more professional. The performance and the effect of our replace products are comparable with imports; in addition the performance and the quality of domestically-made filters or filter elements are also stable and reliable. All those have been selected and recognized by customers and research institutions.
testing standards are satisfied by the products
ISO2941- filter elements- the testing for the cracking resistance
ISO2942- filter elements-the identifying for the structural integrity
ISO2943- filter elements-the identifying for the compatibility between material and the liquid
ISO3723- filter elements-the testing method for the end load of filter elements
ISO3724- filter elements-the identifying for the fatigue properties of the filter elements
ISO3968- filter elements-the testing for determination of pressure differential/flow characteristics
ISO4572- filter elements-the testing for the multi-pass method for evaluating filtration performance.
Velcon Filters,Velcon Parker,Velcon Coalescer,Parker Velcon Filters
Xinxiang Lifeierte Filter Corp.,Ltd , https://www.chinafiltrations.com