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Fracturing fluid flowback law

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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Fracturing fluid flowback law
Recovery of tantalum and/or niobium from metalfluoride ...
Recovery of tantalum and/or niobium from metalfluoride ...

Recovery of metal values and hydrofluoric ,acid, from tantalum and columbium waste sludge: 2950966: 1960-08-30: Recovery of tantalum values: GB1066016A: 1967-04-19: 3976475: 1976-08-24: Process for the recovery of tantalum and/or ,niobium, from ,acid, solutions thereof

Toxic and radioactive: The damage from mining rare ...
Toxic and radioactive: The damage from mining rare ...

13/4/2021, · ,Niobium, is named after the Greek goddess of tears, Niobe, daughter of mythological King Tantalus, whose name was later given to the metal ,tantalum,. ,Niobium, and ,tantalum, …

Toxic and radioactive: The damage from mining rare ...
Toxic and radioactive: The damage from mining rare ...

13/4/2021, · ,Niobium, and tantalum are always found together in nature. Critical raw materials: ... Yellow-brown ,acid, mine drainage flows into a ,wastewater, pond in efforts to reduce heavy metal and chemical ...

(PDF) Leaching of niobium and tantalum from a low-grade ...
(PDF) Leaching of niobium and tantalum from a low-grade ...

The niobium and, tantalum, was recovered as high purity (Nb,Ta)2O5 (99.3%) through evaporation, crystallization and phase transformation processes. Effect of KOH decomposition time on the water...

Separation of niobium and tantalum from Mozambican ...
Separation of niobium and tantalum from Mozambican ...

1/11/2012, · Tantalite ore was digested using molten ammonium bifluoride. ,Niobium, and tantalum were extracted using octanol as extractant. Addition of H 2 SO 4 improves the separation of ,niobium, and tantalum. Extraction with 2-octanol is almost similar to extraction with 1-octanol. Two and three stages were sufficient for the extraction of Ta and Nb respectively.

(PDF) Separation of niobium and tantalum from Mozambican ...
(PDF) Separation of niobium and tantalum from Mozambican ...

Separation of ,niobium, and ,tantalum, from Mozambican tantalite by ammonium bifluoride digestion and octanol solvent extraction

Green extraction of niobium and tantalum for Ethiopian ...
Green extraction of niobium and tantalum for Ethiopian ...

corrosion. As well, a large amount of ,wastewater, containing fluoride is generated which needs to be treated. 2 More importantly, this method is only appropriate for high-grade ,niobium,-tantalum ores, and it is difficult to decompose low-grade ores by hydrofluoric ,acid,.1,2 New process for the leaching of low-grade ores with KOH to eliminate

Waste Management and Comprehensive Utilization of Tantalum ...
Waste Management and Comprehensive Utilization of Tantalum ...

Using anti-clogging mobile sieve plate turbulent ball absorption tower to dispose the ,acid, waste gas,adopting tripping method to deal with the ammonia-containing ,wastewater, and classified recycling waste slag of smelting process can not only recover ,tantalum, and ,niobium, valuable metals,but also ensure that ,tantalum, and ,niobium, wet gas,,waste water,,waste residue meet the national emission …

Process for recovering tantalum and/or niobium compounds ...
Process for recovering tantalum and/or niobium compounds ...

Objects, features, and advantages of the invention include a significantly simplified process for the recovery of substantial amounts of concentrated, commercially usable forms of tantalum, niobium, scandium, uranium, and thorium from ore residues; such process which is energy efficient, provides highly concentrated products, recyclability for internal re-use of waste streams, and which readily …

Group VB - DuPont
Group VB - DuPont

Water/Wastewater: Vanadium, niobium, and, tantalum, are present as cations in acid, so a strong acid cation exchanger like AmberSep™ G26 H Resin is the separation media of choice. In dilute hydrochloric acid, V4+ has a high affinity for a strong acid cation resin. The affinity diminishes as the concentration increases from 4M to 8M HCl, but then the ...

1 L.D. Cunningham Columbium (Niobium) and Tantalum ...
1 L.D. Cunningham Columbium (Niobium) and Tantalum ...

Tantalum, is used in the electronics industry, as well as in aerospace and transportation applications. Columbium (the commonly used synonym for the element ,niobium,) is used as an alloying element in steels and in superalloys. ,Tantalum, and columbium are oft en found together in pyrochlore and baripyrochlore, the main columbium

Group VB - DuPont
Group VB - DuPont

Water/Wastewater: Vanadium, niobium, and tantalum are present as cations in acid, so a strong acid cation exchanger like AmberSep™ G26 H Resin is the separation media of choice. In dilute hydrochloric acid, V 4+ has a high affinity for a strong acid cation resin.

tantalum separation process
tantalum separation process

Tantalum, WikipediaSeparation of the ,tantalum, from ,niobium, is then achieved by lowering the ionic strength of the ,acid, mixture, ... called the Marignac process, the mixture of H 2 ... Separation of Group VB from Liquid Media Water/,Wastewater,: Vanadium, ,niobium,, and ,tantalum, are present as cations in ,acid,, so a strong ,acid, cation exchanger like ...

Waste Management and Comprehensive Utilization of Tantalum ...
Waste Management and Comprehensive Utilization of Tantalum ...

Using anti-clogging mobile sieve plate turbulent ball absorption tower to dispose the ,acid, waste gas,adopting tripping method to deal with the ammonia-containing ,wastewater, and classified recycling waste slag of smelting process can not only recover tantalum and ,niobium, valuable metals,but also ensure that tantalum and ,niobium, wet gas,,waste water,,waste residue meet the national emission …

tantalum separation process
tantalum separation process

Tantalum WikipediaSeparation of the tantalum from ,niobium, is then achieved by lowering the ionic strength of the ,acid, mixture, ... called the Marignac process, the mixture of H 2 ... Separation of Group VB from Liquid Media Water/,Wastewater,: Vanadium, ,niobium,, and tantalum are present as cations in ,acid,, so a strong ,acid, cation exchanger like ...

TANTALUM COLUMBIUM AND FERROCOLUMBIUM
TANTALUM COLUMBIUM AND FERROCOLUMBIUM

devices, which generate, wastewater,.12 The water and, tantalum, solution from the extractor contains a fluotantalic, acid, solution, from which potassium fluotantalate (K-salt, K2TaF7) or, tantalum, pentoxide (Ta2O5) can be precipitated through the addition of either potassium fluoride, or ammonia. Potassium chloride (not shown) is used sometimes in

Recovery of tantalum and/or niobium from metalfluoride ...
Recovery of tantalum and/or niobium from metalfluoride ...

Recovery of metal values and hydrofluoric ,acid, from ,tantalum, and columbium waste sludge: 2950966: 1960-08-30: Recovery of ,tantalum, values: GB1066016A: 1967-04-19: 3976475: 1976-08-24: Process for the recovery of ,tantalum, and/or ,niobium, from ,acid, solutions thereof

- MedCrave online
- MedCrave online

As well, a large amount of, wastewater containing fluoride, is generated which needs to be treated. 2 More importantly, this method is only appropriate for high-grade niobium-tantalum ores, and it is difficult to decompose low-grade ores by hydrofluoric acid. 1,2 New process for the leaching of low-grade ores with KOH to eliminate fluorine pollution at the decomposition, 1,2 was proposed.

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