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gas air separation plant

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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gas air separation plant
CN107512813B - Multi-way recycling method for acid-making ...
CN107512813B - Multi-way recycling method for acid-making ...

The invention discloses a multi-way recycling method of ,acid,-making ,wastewater from smelting, flue gas, belonging to the technical field of chemical ,industry,. According to the invention, firstly, the acidic ,wastewater, is subjected to primary emission reduction by using a method of internal cyclic concentration of a purification system, then the acidic ,wastewater, is treated by using processes of ...

Smelting and Refining Operations - ILO Encyclopaedia
Smelting and Refining Operations - ILO Encyclopaedia

In the hydrometallurgical process, the oxidized ores and waste materials are leached with, sulphuric acid, from the smelting process. Leaching is performed in situ, or in specially prepared piles by distributing acid across the top and allowing it to percolate down through the material where it is collected.

Mining Smelters Water Pollution and Environmental ...
Mining Smelters Water Pollution and Environmental ...

Acid, rain leads to a rise in acidity in surface water and soil wherein numerous vegetation, wildlife and fish population reside. ,Acid, rain also expedites land erosion and physically endangers plants and animals in the long run [3]. ,Wastewater,. Waste products ,from smelting, …

Smelting - Wikipedia
Smelting - Wikipedia

Smelting, is a process of applying heat to ore in order to extract a base metal. It is a form of extractive metallurgy.It is used to extract many metals from their ores, including silver, iron, copper, and other base metals.,Smelting, uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind.

Minimization and stabilization of smelting arsenic ...
Minimization and stabilization of smelting arsenic ...

6/1/2021, · Smelting industry is the main source of arsenic-containing wastewater and waste residue pollution. Typically, the high leachability of arsenic concentration and sulfuric acid was detected in the copper smelting wastewater (Qi et al. 2020).

Copper Smelting - IFC
Copper Smelting - IFC

recovered. Sources of wastewater include spent electrolytic baths, slimes recovery, spent acid from hydrometallurgy processes, cooling water, air scrubbers, washdowns, stormwater, and slud-ges from wastewater treatment processes that require reuse/recovery or appropriate disposal. The main portion of the solid waste is dis-carded slag from the smelter.

Knoevenagel Condensation Catalyzed by Novel Acidic Ionic ...
Knoevenagel Condensation Catalyzed by Novel Acidic Ionic ...

Abstract: A series of novel multiacidic ionic liquids([TEOA] [CF 3 COO]) based on triethanolamine were synthesized through the two-step method and introduced as catalysts for Knoevenagel condensation of complex active methylene compounds. [TEOA] [CF 3 COO] showed the best catalytic performance. The reactions were carried out at room temperature and the amount of catalyst was only 2%(molar ...

Environmental Guidelines for Copper Smelting
Environmental Guidelines for Copper Smelting

recovered. Sources of wastewater include spent electrolytic baths, slimes recovery, spent acid from hydrometallurgy processes, cooling water, air scrubbers, washdowns, stormwater and sludges from wastewater treatment processes that require reuse/recovery or appropriate disposal. The major portion of the solid waste is discarded slag from the smelter.

Recovery of sulfuric acid aqueous solution from copper ...
Recovery of sulfuric acid aqueous solution from copper ...

1/10/2018, · The use of NF membrane systems to recover sulfuric acid aqueous solutions from sulfuric, acid wastewater produced during copper smelting reduces, the amount of discharged pollutants. However, to the best of our knowledge, no research has been performed to determine which type of membrane is most suitable for sulfuric acid solution recovery from copper-refining wastewater.

ARCHIVED - Guidance Document for Management of Wastes from ...
ARCHIVED - Guidance Document for Management of Wastes from ...

Wastes destined for disposal from copper production are kept to a minimum and mainly consist of acid slimes/sludges from the sulphuric acid plants and furnace linings. Acid slimes/sludges are formed when the scrubbing liquid used in the wet scrubber of the off-gas treatment system is bled from the scrubber and treated in an effluent treatment plant.

Minimization and stabilization of smelting arsenic ...
Minimization and stabilization of smelting arsenic ...

6/1/2021, · Smelting industry is, the main source of arsenic-containing wastewater, and waste residue pollution. Typically, the high leachability of arsenic concentration and sulfuric acid was detected in the copper smelting wastewater (Qi et al. 2020).

CN107512813B - Multi-way recycling method for acid-making ...
CN107512813B - Multi-way recycling method for acid-making ...

The invention discloses a multi-way recycling method of ,acid,-making ,wastewater from smelting, flue gas, belonging to the technical field of chemical ,industry,. According to the invention, firstly, the acidic ,wastewater, is subjected to primary emission reduction by using a method of internal cyclic concentration of a purification system, then the acidic ,wastewater, is treated by using processes of ...

Smelting - Wikipedia
Smelting - Wikipedia

Smelting, is a process of applying heat to ore in order to extract a base metal. It is a form of extractive metallurgy.It is used to extract many metals from their ores, including silver, iron, copper, and other base metals.,Smelting, uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind.

Mining Smelters Water Pollution and Environmental ...
Mining Smelters Water Pollution and Environmental ...

Smelting processes release air emissions that are major factors for both air and water pollution. Acid rain may be produced as a result of sulfuric acid mist being formed from these smelting plants that permeates the atmosphere. Due to gravity and movements in the atmosphere, the acid may spread a few miles away, spreading its reach.

Efficient removal of arsenic from copper smelting ...
Efficient removal of arsenic from copper smelting ...

10/10/2020, · Copper smelting wastewater,, one of the typical high arsenic-containing acidic wastewater in the metallurgical extraction process of arsenic-associated minerals,, great,ly threatens human health and ecological, safety due to the possible leakage and diffusion from its secondary pollution.

Remanded Smelting Wastes Technical Background Document ...
Remanded Smelting Wastes Technical Background Document ...

19/5/1980, · K064 ,Acid, plant blowdown slurry/sludge resulting from the thickening of blowdown slurry from primary copper production. K065 Surface impoundment solids contained in and dredged from surface impoundments at primary lead ,smelting, facilities. K066 Sludge from treatment of process ,wastewater, and/or ,acid, plant blowdown from primary zinc production.

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