China Y&X Beijing Technology Co., Ltd. Company News

Recently, Shenzhen (Yantian port, Shekou port and Chiwan Port) and Guangzhou (Nansha port) have strengthened the inspection and prevention measures related to the epidemic situation.   The operation efficiency of ports and terminals in the region has slowed down, and the container detention time in ports has lengthened. Some people in the industry expect that the freight rate, which is already at an all-time high, will continue to break the record. Stricter emission regulations will eliminate a large number of heavily polluting ships, and large-scale government stimulus plans in major economies will promote a new round of inventory replenishment.   Port congestion, navigation delay, capacity imbalance, inland transport delay, coupled with the continuous strong demand for imports in the Americas and other multiple factors, may lead to further increase in container freight. Many shipping companies, such as Herbert, MSC, COSCO, Matson and Shenyuan steamship, have announced a new round of cost increases since mid June.

Technological difficulty: In the process of flotation of copper minerals, high entrainment mica which is easy floated, cann’t receive qualified copper concentrate products.   Solution: Fine screening operations are added to the processing of fine selection, use patented Depressant CD-1 as mica depressant, remove mica in time, get qualified copper concentrate products.

Technological difficulty: (1) Lead flotation need to put a large number of lime, the subsequent selection of zinc need to add a lot of Ammonium Bicarbonate to adjust the pH value, which cause high ammonia content, working environment bad; (2) High alkali environment lead to zinc oxide flotation bubble rich and large viscosity, high pH backwater, need to be treated before reuse; (3) The original desliming flotation process resulted in nearly 50% loss of zinc metal and low recovery of zinc oxide.   Result: (1) Low alkali and desliming process adopted. During lead flotation process, use combination of collector which has better effect for lead selection, improve the efficiency of lead flotation; (2) develop and use one kind of zinc oxide flotation miscible collector, zinc oxide mineral flotation recovery significantly improved. (3) When the original ore containing zinc 7%, lead 0.7%, the final zinc sulfate concentrate containing 54% lead, lead 1.2%, zinc recovery rate of 70%, zinc oxide concentrate 35% zinc, lead 4.3%, zinc recovery Rate of 14%, total zinc concentrate 50%, the total recovery rate 84%, to achieve the efficient comprehensive recovery of hard selection lead-zinc mine; (4) Industrial test to improve lead recovery rate of 4%, reduce the cost of flotation agent RMB 6 yuan / ton.

Scheelite is usually produced in contact metasomatic skarn, high-temperature hydrothermal veins, and frit. In a few cases, it can also develop in granite pegmatite. The formation temperature is between 200 and 500°C, and the pressure is between 200 and 1500 bar. Generally speaking, high-temperature scheelite is mostly found in skarn deposits, but this type of deposit also has a slightly higher formation temperature At 200 degrees scheelite, the former appears in the skarn formed in the dry skarn stage, and the latter corresponds to the later quartz sulfide stage. Typical mineral assemblages include cassiterite, wolframite, topaz, fluorite, apatite, tourmaline, quartz, mayonnaise-garnet, diopside, fushanite, and tremolite.   Scheelite is usually associated with tin, molybdenum, and bismuth in magmatic hydrothermal deposits such as porphyry, skarn, frit and quartz vein types.   Scheelite deposits are often accompanied by sulfide ore, of which molybdenite is particularly common. In the beneficiation method of scheelite, sulfide ore is generally floated first, followed by floatation of scheelite. The flotation of scheelite is carried out in alkaline medium, and the pH of the pulp is adjusted to 9-10.5 with sodium carbonate and sodium hydroxide. Commonly used inhibitors are water glass, white bird bark juice, tannins and various phosphates. . Commonly used collectors are oleic acid, sodium oleate, tall oil, oxidized paraffin soap, etc. These collectors all have foaming properties, and generally no foaming agent is added. Scheelite has good floatability. There are many calcium-containing gangue minerals with similar properties in the ore, such as calcite, fluorite, apatite, etc., which complicate the flotation process. In order to improve the selectivity of the flotation process, adding polyvalent metal salts (such as ferrous sulfate) to the water glass can significantly improve the flotation effect of scheelite.   Our SW01 can replace oleic acid, and it has been tested in Australian mines with good results.

YX821 is intended to be used as a collector for mineral flotation, preferably for flotation of silicates and quarts from iron ores.     YX821 consist of aliphatic ether diamine, partially neutralized by acetic acid.     Typical Data       Chemical and Physical Data Typical Values   Appearance liquid at 20°C   Density 918 kg/m3 at 20°C     Flash point > 100°C     Pour point < -15°C     Viscosity 420 mPa.s at 20°C     Viscosity 1000 mPa.s at 10°C Typical data are based on our own measurements or derived from the literature. They do not constitute part of the delivery specification.   YX821 is not soluble but readily dispersible in water and is compatible with cationic or nonionic flotation agents and commonly used modifying agents.   YX821 is chemically stable in normal beneficiation conditions.   Use of product In plant scale it is often preferred to add the product as such. Sometimes, and especially in laboratory testing, a 5% solution in water is recommended. Preparation: mix 95 parts (by weight) water with 5 parts YX821 at temperature min 10°C with good agitation. Agitation continues until a homogeneous solution is obtained. It is recommended to continue agitation to ensure homogeneity.   Handling and Storage YX821 should be stored in closed containers at temperature below 40°C. YX821 is not corrosive against iron and steel. Zinc, copper and their alloys as well as polyethylene, PVC and most types of rubber must not be used as they will either react with the product or will be dissolved.   Health and Safety For health and safety information, see separate leaflet.

Pine Oil (Q25) is flotation frother, amber or dark brown oily liquid, small odor. It is suitable for the beneficiation process of oxide ore, nonferrous ore and precious metal ore with high mud content. The frother has uniform bubble bubbles, large bubbles and good mineralization effect, which is conducive to improving concentrate grade, and the dosage is generally 5-30g/t.   Application (1) suitable for flotation operations with high argillaceous gangue content in the raw ore. Effectively reduce the viscosity of the flotation foam, improve the separation efficiency of the target minerals, and achieve the purpose of improving the grade and recovery rate of the concentrate; (2) suitable for the flotation conditions with fine particle size and fine grinding particle size of the target mineral in the original ore. Improve the separation efficiency of target minerals, reduce or eliminate the interference of gangue minerals on the recovery of target minerals, and improve the beneficiation index.   Safety and Handling Frother Q25 is manufactured under carefully controlled conditions. However, to varying degrees they can be considered harmful and therefore before handling this product always carefully read and understand the MSDS for this product. This flotation frother causes irritation to eyes and skin. Safe handling includes the use of safety glasses, natural rubber gloves and protective clothing.   Storage Store in a dry and well-ventilated place away from heat and sunlight after the principle “first in/first out”. Store in plastic drums or coated steel drums.   Environmental Impact The majority of the frother is tied up with the concentrate and is destroyed in the subsequent processing operations. The remainder is transferred to the tailings. Release into the water systems should be avoided.

What are Dithiophosphates? Dithiophosphates are a type of collector which is used in the prcxzess of flotation of different earth materials. These chemicals have the ability to magnify the effect of hydrophobicity of a mineral surface so it can be easily be absorbed on the foam or froth produced. Its absorption to the foam is what improves the floatability of a certain mineral. Different types of collectors have varying levels of frothing abilities.   There are different types of dithiophosphates out in the market today and more are being developed. Each kind has different specifications and levels of effectiveness as a mineral collector. They also have different appearances in color and form. Some have yellow, brown, and green color while almost all are in an oily liquid form. Another characteristic of dithiophosphates is that they are sensitive to heat which is why proper storage should be observed. When they are exposed to fire or any extreme source of heat they have the tendency to decompose. DihydrocarbylDithiophosphates is its chemical name. There are two major classifications are dial^lmonothiophosphate and diall^ldithiophosphate. It was discovered in the year 1925 where it started to be used in the mining industry. It is popularly used in the flotation process of varicxjs sulfide minerals.   This type of collector can be stated as chemically stable and is very hard to decompose unless suggested to high intensity head. It has a good selectivity and a poor collecting power of f^rites. This is what makes it great for the flotation process of pyrite-containing sulfide ores. A great example of its effectiveness is using it as a collector in the flotation prcxzess of lead - zinc and copper sulfide ores which contains high levels of iron sulfides.   Types of Dithiophosphates There are various types of Dithiophosphates being offered. Each one has its own specifications and level of effectiveness as a collector in the mining industry. These types include the following： Dithiophosphate 25. Dithiophosphate 25S. Dithiophosphate IBS. Dithiophosphate BS. Dithiophosphate BA. and Amino - Dithiophosphate.   Dithiophosphate 25 This type of Dithiophosphateis a great collector which also has frothing characteristics and is not selective towards sulfide minerals. It has a high level of effectivity in the flotation prcxzess of copper, silver, zinc sulfide minerals (activated), and lead. Floatation of pyrite and various iron sulfkie minerals don't float in alkaline solutions but do in an acid or neutral medium.   Dithiophosphate 25S This kind has a great collection power for lead and copper sulfide minerals but is weak in the collection process of zinc sulfide. Because of its selective characteristics. 25S is usually used in the separation flotation prcxzess of lead and copper sulfides from zinc sulfide minerals. Dithiophosphate 25S is one of the most commonly used. It is an aqueous with a dark brown and almost black appearance which is odorless.   Dithiophosphate IBS This type has a dark brown appearance which is also odorless. It is a very good collector when used on copper, silver, zinc sulfide, and gold ores. However when in an alkaline circuit it exhibits very weak collecting power on writes. Also, it has minimal frothing ability which is why additional frothers are used along with it.   Dithiophosphate BA It exhibits strong frothing abilities and a great collector for non-ferrous metallic minerals. Its major component is Ammonium Dibutyldithiophosphate and is very soluble in water while having no strong odor. It is very efficient in the flotation process of antimony and nickel sulfide minerals, as well as with nickel sulfide minerals which have low flotation characteristics. Many mining companies use this in the recovery process of precious minerals like silver, platinum, and gold.   Amino - Dithiophosphate It has a white powder color which is soluble in alcohol and alkali liquor rather than water. It is effectively used in the flotation process of various non-ferrous metallic sulfide minerals. It exhibits strong collection power and great selectivity in the flotation process. It is used primarily in the flotation process of copper and lead minerals which are contained in iron and sphalerite sulfide. Also, this type of dithiophosphate is used in raising the ratio of recovery in the flotation process of silver and gold.

PRODUCT DESCRIPTION: Product name: Leaching reagent YX500 Appearance: Off-white powder; Using method: It can be used after being fully dissolved in water at room temperature; Dosage: The dosage can refer to the dosage of sodium cyanide, and it is recommended to conduct a beneficiation test and refer to its optimal conditions; Corresponding to the ore, PH 10-12, the dosage is 0.5-7 kg/ton,the concentration is 0.3-0.8‰; Use/Application: YX500 is a new type of leaching reagent, which is a series of high-tech products that can completely replace cyanide and achieve efficient leaching.   YX500 is suitable for a variety of gold-containing ore and materials and related leaching processes, mainly including: gold, silver oxide ore, primary ore, cyanide tailings, gold concentrate, roasting slag, anode mud, etc. Leaching, pool leaching, charcoal pulp, stirring leaching and other leaching processes.