Tianjin electrolytic copper plant for which the anode slime containing lead and tin of high using smelt combined process, about 2% Au and 3.5% Ag into the flotation tailings, and later by test, the recovery of tin in form of tin-lead solder , then the recovery of gold and silver, wherein the solder from the electrolytic anode. The metal recovery rates were: PbZ>91%, Sn>88%, and both Au and Ag were 99%, which greatly improved the recovery rate of Au and Ag. The Zhongyuan Smelter uses a sulphation roasting-cyanide leaching process to perform acid leaching prior to cyanidation leaching, salt leaching to remove cyanide leaching of Cu, Pb, and Zn, followed by cyanidation and leaching of gold. Changsha Nonferrous Metallurgy Design and Research Institute, through the analysis of copper anode mud, it is known that copper anode mud usually contains 20% to 30% of copper, which is mainly caused by entrained copper sulfate electrolyte. Therefore, it is proposed to pretreat with warm water with sulfuric acid. Not only can you leach most of the copper, but you can also leach a part of the crucible to reduce the copper content of the anode mud to 3% to 6%. Fuchunjiang Smelter wants to cancel the gold and silver electrolysis, and tested the process of TBP-n-octanol extraction of gold-oxalic acid to reduce the stripping gold, so that the purity of gold is greatly improved.
Nickel Based Laser
Cladding Powder
Ni base alloy
powder is mainly made of NiCrBSi or NiBSi. Ni-based self-fluxing powder has
good wettability, corrosion resistance and high temperature self-lubricating
effect, and is used in components with heat resistance, corrosion resistance and
thermal fatigue resistance. In general Ni35,Ni45,Ni60 etc can be used for laser
cladding, the No means hardness of powder. Inconel 625 and 718 has good
corrosion property under higher temperature, also widely used for laser
cladding process.
Cobalt based Laser
Cladding Powder
Cobalt-based alloy
powder is the cemented carbide resistant to various types of wear and corrosion
as well as high temperature oxidation. That is, the so-called
cobalt-chromium-tungsten (molybdenum) alloy or Stellite alloy cobalt-based
alloy is mainly composed of cobalt, containing a considerable amount of nickel,
chromium, tungsten and a small amount of molybdenum, niobium, tantalum,
titanium, Alloying elements such as lanthanum, and occasionally a class of
alloys containing iron.
Co-based self-fluxing
alloys have good high temperature performance and wear resistance and corrosion
resistance, and are used in petrochemical power, metallurgy and other
industrial fields where they are wear-resistant, corrosion-resistant and
high-temperature resistant.
Iron based Laser
Cladding Powder
The work pieces
required for laser cladding and manufacturing in the actual industry are mainly
carbon steel and cast steel. The Fe-based alloy is close to the base material
in composition and has good wettability. The advantage of Fe base powder is
lower cost and good wear resistant of cladding layer. As a result, it`s the
most widely used for laser cladding process. It is suitable for parts that
require local wear resistance and are easily deformed.
WC blended Laser
Cladding Powder
Tungsten carbide blended with Ni alloy powder is the best
choice for wear resistant work piece. This unique process can bring excellent
wear, corrosion and high temperature resistant. Our blend powder can achieve
different portion of WC from 35% to 60% without crack under suitable cladding
parameter.
Iron Alloy Powder,Nickel Alloy Powder,Cobalt Alloy Powder,Laser Cladding Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcthermalspray.com
