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Current status of fracturing flowback fluid treatment technology

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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Current status of fracturing flowback fluid treatment technology
Synthesis of MnO2 Hollow Nanospheres through Selective ...
Synthesis of MnO2 Hollow Nanospheres through Selective ...

The discharge of dye ,wastewater, has become an unavoidable problem for human health and the environment. Developing an economical and rapid method to prepare effective adsorbents for selective removal of dyes is extremely urgent. In this work, ,MnO 2, hollow nanospheres (MHNSs) were prepared through the selective etching method with the MnCO3 as the sacrificial template.

MONITORING AND REMOVAL OF ACRYLAMIDE FROM AQUEOUS …
MONITORING AND REMOVAL OF ACRYLAMIDE FROM AQUEOUS …

It is known that ,potassium permanganate, as strongest oxidizing agent, undergoing a three possible ,oxidation, mechanism at different mediums as follows: In ,acidic, medium: MnO 4-+8H+ + 5e-Mn2+ + 4H 2 O Eº=1.507 V In neutral or alkaline solution, the product is the brown solid, ,MnO2,: MnO 4-+ 4H+ + 3e-,MnO 2, (s) + 2H 2 O Eº=1.692 V

potassium permanganate oxidation: Topics by Science.gov
potassium permanganate oxidation: Topics by Science.gov

Potassium Permanganate, as an Alternative for Gold Mining ,Wastewater, Treatment. NASA Astrophysics Data System (ADS) Ordiales, M.; Fernández, D.; Verdeja, L. F.; Sancho, J. 2015-09-01. The feasibility of using ,potassium permanganate, as a reagent for cyanide ,oxidation in wastewater, was experimentally studied. Both artificial and production ,wastewater, from two different gold mines were tested.

A bio-electrochemical membrane system for more sustainable ...
A bio-electrochemical membrane system for more sustainable ...

Under 4 V voltage (current is 0.93 A), after 180 s galvanization, the SS was lifted out, then dried at 60 °C. Then, in 10.5 g L −1 ,acidic potassium permanganate, solution of 60 °C water bath, the plated SS was soaked for 12 h to complete ,MnO 2, in situ chemical vapor deposition.

A bio-electrochemical membrane system for more sustainable ...
A bio-electrochemical membrane system for more sustainable ...

Under 4 V voltage (current is 0.93 A), after 180 s galvanization, the SS was lifted out, then dried at 60 °C. Then, in 10.5 g L −1 ,acidic potassium permanganate, solution of 60 °C water bath, the plated SS was soaked for 12 h to complete ,MnO 2, in situ chemical vapor deposition.

Subject:
Subject: "manganese dioxide" - PubAg Search Results

The oxidative coupling of secondary aldehydes and sulfinate salts is achieved using copper catalysis to form α-sulfonyl aldehydes. The use of an ,acidic, co-solvent is important to adjust the ,oxidation, potential of MnO₂ as an oxidant. A broad range of sulfonylated aldehydes is prepared, and their further functionalisation is demonstrated.

MONITORING AND REMOVAL OF ACRYLAMIDE FROM AQUEOUS …
MONITORING AND REMOVAL OF ACRYLAMIDE FROM AQUEOUS …

It is known that ,potassium permanganate, as strongest oxidizing agent, undergoing a three possible ,oxidation, mechanism at different mediums as follows: In ,acidic, medium: MnO 4-+8H+ + 5e-Mn2+ + 4H 2 O Eº=1.507 V In neutral or alkaline solution, the product is the brown solid, ,MnO2,: MnO 4-+ 4H+ + 3e-,MnO 2, (s) + 2H 2 O Eº=1.692 V

BJNANO - Synthesis of a MnO2/Fe3O4/diatomite nanocomposite ...
BJNANO - Synthesis of a MnO2/Fe3O4/diatomite nanocomposite ...

Synthesis of a ,MnO2,/Fe3O4/diatomite nanocomposite as an efficient heterogeneous Fenton-like catalyst for methylene blue degradation Heterogeneous Fenton-like catalysts with the activation of peroxymonosulfate (PMS), which offer the advantages of fast reaction rate, wide functional pH range and cost efficiency, have attracted great interest ,in wastewater, treatment.

got potassium permanganate - Pigeonbasics Forum - Page 2
got potassium permanganate - Pigeonbasics Forum - Page 2

In neutral solution, ,permanganate, is only reduced by 3e- to give ,MnO2,, wherein Mn is in a +4 ,oxidation, state. This is the material that stains one's skin when handling KMnO4. KMnO4 spontaneously reduced in an alkaline solution to green-coloured K2MnO4, wherein manganese is in the +6 ,oxidation, state.

MnO2-loaded activated carbon and its adsorption of ...
MnO2-loaded activated carbon and its adsorption of ...

However, most of previous studies have focused on the preparation of activated carbon based ,MnO 2, using ,potassium permanganate,. There has been a lack of research on the preparation of activated carbon loaded with ,MnO 2, by coprecipitation of manganese nitrate/sodium carbonate, as well as the influence of its preparation process on the its capacity of formaldehyde adsorption.

EP1204594A1 - Method for the evaporation of an aqueous ...
EP1204594A1 - Method for the evaporation of an aqueous ...

With a pH of 6 or above,, ammonia, is, evaporated, along with water and forms an inert gas layer, which impedes condensation on the evaporator surfaces. To solve this problem, acid (21) is added to the...

Potassium Permanganate | Water Purification | Manganese ...
Potassium Permanganate | Water Purification | Manganese ...

5.1.1 ,Oxidation, Potential ,Potassium permanganate, is highly reactive under conditions found in the water industry. It will oxidize a wide variety of inorganic and organic substances. ,Potassium permanganate, (Mn 7+) is reduced to manganese dioxide (,MnO2,) (Mn 4+) which precipitates out of solution (Hazen and Sawyer, 1992). All reactions are exothermic.

Synthesis of MnO2 Hollow Nanospheres through Selective ...
Synthesis of MnO2 Hollow Nanospheres through Selective ...

The discharge of dye ,wastewater, has become an unavoidable problem for human health and the environment. Developing an economical and rapid method to prepare effective adsorbents for selective removal of dyes is extremely urgent. In this work, ,MnO 2, hollow nanospheres (MHNSs) were prepared through the selective etching method with the MnCO3 as the sacrificial template.

JP6523321B2 - Liquid-phase oxidation of aromatic ...
JP6523321B2 - Liquid-phase oxidation of aromatic ...

JP6523321B2 JP2016559149A JP2016559149A JP6523321B2 JP 6523321 B2 JP6523321 B2 JP 6523321B2 JP 2016559149 A JP2016559149 A JP 2016559149A JP 2016559149 A JP2016559149 A JP 2016559149A JP 6523321 B2 JP6523321 B2 JP 6523321B2 Authority JP Japan Prior art keywords manganate xylene oxidizing aromatic compound ,oxidation, reactor Prior art date 2013-12-12 Legal …

Chapter 04 - Chemical Reactions
Chapter 04 - Chemical Reactions

Which of the following concerning ,oxidation,-reduction reactions is/are ... The concentration of sulfate in a sample of ,wastewater, is to be determined by using gravimetric ... 163. In a volumetric analysis experiment, a solution of sodium oxalate (Na2C2O4) in ,acidic, solution is titrated with a solution of ,potassium permanganate, ...

Telescopic synthesis of cellulose nanofibrils with a ...
Telescopic synthesis of cellulose nanofibrils with a ...

The recognition ,of cellulose nanofibrils, (CNF) in the past years as a high prospect material has been prominent, but the impractical cellulose extraction method from biomass remained as a ...

Removal efficiency and mechanism of bio-treated coking ...
Removal efficiency and mechanism of bio-treated coking ...

The high concentration of H + will greatly reduce the chance of K + occupying the active site of [2×2] tunnel, therefore, the highly ,acidic, conditions are conducive to the generation of [1×1] tunnel structure ,of MnO 2,, which might be the reason that the ,MnO 2,-SO 4 2−, ,MnO 2,-Cl − and ,MnO 2,-NO 3 − are β crystal forms and the constituent elements do not contain K ions.

Breakdown of PFOA PFOS and 6:2FTS Using Acidic Potassium ...
Breakdown of PFOA PFOS and 6:2FTS Using Acidic Potassium ...

Abstract. We found that inert fluoro-carbon skeletons of Perfluorooctanoic Acid (PFOA), Perfluorooctane Sulfonate (PFOS) and 1H, 1H, 2H, 2H-perfluorooctanesulfonic acid (6:2FTS) could be broken down by ,potassium permanganate, as oxidant in ,acidic, liquid phase at room temperature.

MnO2-loaded activated carbon and its adsorption of ...
MnO2-loaded activated carbon and its adsorption of ...

However, most of previous studies have focused on the preparation of activated carbon based ,MnO 2, using ,potassium permanganate,. There has been a lack of research on the preparation of activated carbon loaded with ,MnO 2, by coprecipitation of manganese nitrate/sodium carbonate, as well as the influence of its preparation process on the its capacity of formaldehyde adsorption.

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