After pyrite roasting acid residue remaining dust and collectively referred to as pyrite cinder. The slag mainly contains iron (content is 40-55%), and the gold content in the slag is generally below 2 to 0.5 g/ton, and some may be as high as 3 to 10 g/ton. This part of the gold recycling mainly uses cyanidation. In addition to the preparation of cooling, grinding, etc. of the slag, strong rinsing and chemical treatment are required. Rinse off purpose is copper sulfate, excess acid, a metal chloride, iron salts. These materials increase the consumption of cyanide and lime and the dissolution of passivated gold during cyanidation. The purpose of the chemical treatment is to treat the slurry with alkali, so that the cyanidation effect of the slag is improved and improved, and the leaching rate of gold is increased.
IHF Series are single-stage, single suction and fluoroplastic Alloy centrifugal pumps. The Chemical Pump has a corrosion-resistant, wear-resistant, high temperature resistant, non-aging, high mechanical strength, non-toxic decomposition. The pump body is made by metal housing and FEP (F46) lining, pump cover, impeller and shaft sleeve are made by integrated sintering and pressure molding of metal insert and Fluoro plastic housing, shaft seal is sealed by external bellow mechanical seal.
Petrochemical Process Pump,Stainless Steel Chemical Pump,Horizontal Multistage Chemical Pump Shijiazhuang Boda Industrial Pump Co., Ltd. , https://www.mineralslurrypump.com
The gold extraction material of a gold cyanide plant in Shandong Province is derived from the gold-bearing sulfur concentrate of six gold mines, and the gold-containing sulfur concentrate is calcined in a boiling furnace to produce acid. The main metal minerals of the slag are hematite and magnetite, followed by a small amount of pyrite and chalcopyrite. The natural gold particle size ranges from 0.009 to 0.0009 mm and the gold content ranges from 3 to 4 g/ton. Among them, monomeric gold accounted for 3.5%, continuous organisms accounted for 76.71%, cracked gold accounted for 1.62%, and packaged gold accounted for 18.17%. The slag by water quenching, grinding, dehydrating thick and a base, using conventional cyanide - gold extraction of zinc powder substitution. The main material consumption of production is: sodium cyanide 1.08 kg / ton, zinc powder consumption 60 g / ton, liquid chlorine consumption 6 kg / ton, lime 15 kg / ton, lead acetate 40 g / ton, steel ball dosage 1.15 kg /Ton. Production indicators are: original ore grade: 3.98 ~ 4.26 g / ton, leaching rate 67.71 ~ 68.50%, washing rate 95.5 ~ 95.71%, replacement rate 98.03 ~ 98.48%, total recovery of gold is 64.28 ~ 63.73%, iron recovery 36.99 to 33.88%. In 1987, a total of 30,103 tons of slag was processed, and a net profit of 940,000 yuan was obtained. The process flow is shown in the figure below. 
IHF series are widely used with the chemical, pharmaceutical, petroleum, metallurgy, electricity, electroplating, pickling, pesticide, paper and other industries in the liquid delivery, wastewater treatment and processing acids, etc. process.
IH chemical pump is high Popularization, stable capability, stainless steel material. medium temperature:-20 -+180, system work pressure ≤1.6MPa, flow:6.3-400m3/h. Outlet pressure:5-125m.
IH chemical pump is mainly used in chemical, oil, petrochemical industry, metallurgy, light industry, printing dyeing, pharmaceutics, environment protect, seawater desalt, paper making, food and etc .industrial departments to transport corrosive medium without suspended grain or medium.
For API610 chemical pump, Horizontal Multistage Chemical Pump application and features:
For pumping cold or hot, chemically neutral or aggressive. clean liquids or liquid containing solid particles, especially used in:
â– Chemical and petrochemical industries
â– Refineries
â– Pharmacy and sugar industries
â– Steel plant and power station
The API 610 chemical pump can transfer sulphic acid, nitric acid, hydrochloric acid and phosphoric acid at various temperature and concentration. Sodium hydroxide and alkine liquid at various temperature and concentration.
CQB stainless steel Magnetic Pump
The wet parts of this pump are made of full stainless steel material to perform outstanding corrosion resistance to organic acid, organic compound, alkali, neutral solution and a great many of gases, double helix carbon graphite bearing and hard alloy bearing are provided with good abrasion-resistant property to ensure the service life of product, it is an optimal pump for handling corrosive mediums without leakage.