Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

oil and gas equipment etf

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

oil and gas equipment etf
Hydrometallurgy - Academic Accelerator
Hydrometallurgy - Academic Accelerator

Treatment ,of acidic, mine drainage in an adsorption process using ,calcium, silicate modified with Fe(III) A. Nikiforova · O. Kozhura · O. Pasenko · O. Pasenko Dissolution rates of jarosite-type compounds in H2SO4 medium: A kinetic analysis and its importance on the recovery …

Fluoride removal from water by adsorption—A review ...
Fluoride removal from water by adsorption—A review ...

15/7/2011, · Owing to the stability at low pH and its magnetic properties, schwertmannite was used for the treatment of fluoride contaminated ,wastewater, . The Langmuir maximum adsorption capacity of schwertmannite for fluoride was 50.2–55.3 mg/g at different temperatures.

Technical Resource Document Treatment Technologies for ...
Technical Resource Document Treatment Technologies for ...

Previous 14 investigators have categorized corrosive waste ,treatment, options as follows: • Aqueous ,treatment, of inorganic acids and bases which do not contain toxic organics or heavy metals at levels which require ,treatment, (Waste C, Figure 4.1.3); • Aqueous ,treatment, of corrosive liquids with trace organics (Waste A, Figure 4.1.3); • Aqueous ,treatment, of dilute organic corrosive wastes (Waste 0, Figure 4.1.3); • ,Treatment, …

CN103159342B - Hydrofluoric acid wastewater treatment ...
CN103159342B - Hydrofluoric acid wastewater treatment ...

The invention relates to a, hydrofluoric acid wastewater, treatment method for, treating wastewater, after etching glass substrates. According to the invention, acid, calcium salt and calcium hydroxide...

SIPS2019 - FLOGEN
SIPS2019 - FLOGEN

- Chemical ,treatment, of ,wastewater, (adding reagents): рН = 11.3-11.6; residual hardness-less than 1.0 meq/l; heavy metals precipitation degree comprises 93-98.9%; - Ultrafiltration: transmembrane pressure - 0.6 bar, partition coefficient - 85%; filtration rate - 375 l/m 2 h; filtrate turbidity - 0,6 NTU;

How to Treat Wastewater from Fertiliser Industry? | Waste ...
How to Treat Wastewater from Fertiliser Industry? | Waste ...

Fluosilisic acid, reacts with lime and precipitates calcium fluoride in this step of the treatment. The waste-water is again treated with a second lime addition to raise the pH level from 8 to at least 9 (where phosphate removal rates of 95 per cent may be achieved), although two-stage dosing to …

Hydrometallurgy - Academic Accelerator
Hydrometallurgy - Academic Accelerator

Hydrometallurgy aims to compile studies on novel processes, process design, chemistry, modelling, control, economics and interfaces between unit operations, and to provide a forum for discussions on case histories and operational difficulties.Topics covered include: leaching of metal values by chemical reagents or bacterial action at ambient or elevated pressures and temperatures; separation of solids …

Removal of fluoride from industrial wastewater by using ...
Removal of fluoride from industrial wastewater by using ...

At present, the main methods of treating acidic wastewater containing wastewater fluoride include lime neutralization, chemical coagulation, adsorption, and ion-exchange resin. Among them, lime neutralization is widely used to treat fluoride in copper-smelting factories.

Strontium - Wikipedia
Strontium - Wikipedia

Strontium, is the chemical element with the symbol Sr and atomic number 38. An alkaline earth metal, ,strontium, is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to air. ,Strontium, has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, ,calcium, and barium. It occurs …

Removal of fluoride from industrial wastewater by using ...
Removal of fluoride from industrial wastewater by using ...

At present, the main methods of treating ,acidic wastewater containing wastewater, fluoride include lime neutralization, chemical coagulation, adsorption, and ion-exchange resin. Among them, lime neutralization is widely used to treat fluoride in copper-smelting factories.

Fluoride Removal by Calcite: Evidence for Fluorite ...
Fluoride Removal by Calcite: Evidence for Fluorite ...

Calcium, and zirconium modified acid activated alumina for adsorptive removal of fluoride: Performance evaluation, kinetics, isotherm, characterization and industrial ,wastewater, treatment. Advanced Powder Technology 2020, 31 (5) , 2045-2060. https://doi.org/10.1016/j.apt.2020.02.035

The Korean Journal of Chemical Engineering
The Korean Journal of Chemical Engineering

The effect of ,calcium, peroxide originating from oyster shell powder on control of ,phosphorus, compounds in oceanic sediment Kim BG, Khirul MA, Cho DC, Kwon SH : No 1. 111-119: Recycling of gold from waste electronic components of devices Panda R, Dinkar OS, Jha MK, Pathak DD : No 1. 120-129

JP2751874B2 - Treatment method for wastewater containing ...
JP2751874B2 - Treatment method for wastewater containing ...

fluorine calcium, aluminum hydroxide ,wastewater, gelled aluminum Prior art date 1995-04-24 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number JP17057595A Other languages ...

dLib.si - Acta chimica slovenica
dLib.si - Acta chimica slovenica

The complexation equilibria of ,calcium, ion in all-,fluorine, environment with oxygen-donating ligands ... ASM1 limitations for modeling of ,wastewater treatment, processes (številka: 4, 2001) Basic data of tobacco stems ... Chemical reactions between BaTiO3 ceramic and ,fluorine,-,containing, atmosphere (številka: 2, 2002) Studies on ...

Application of Red Mud in Wastewater Treatment
Application of Red Mud in Wastewater Treatment

RM is widely used as an adsorbent in the effective removal of heavy metal and non-metal ions, organic pollutants, and dyes in ,wastewater, treatment as well as sulfides and carbides in waste gas treatment, in the adsorption of pollutants in soil, and in the restoration of contaminated soil. This approach achieved excellent results.

FLUORIDES (EHC 227 2002)
FLUORIDES (EHC 227 2002)

It is relatively insoluble in water — approximately 3000 times less soluble in water than sodium fluoride (McIvor, 1990) — as well as in dilute acids and bases (Neumüller, 1981). ,Calcium, fluoride is also known as fluorite. Fluorspar is a mineral ,containing, 60–97% ,calcium, fluoride, depending on the grade.

A Comparative Study on Removal of Hazardous Anions from ...
A Comparative Study on Removal of Hazardous Anions from ...

The presence of these anions in ground and surface waters has resulted in severe contamination and has caused adverse health effects. Among the toxic anions, arsenite (As(III)), arsenate (As(V)), and fluoride (F-) have shown concern in the ,treatment, of wastewaters and drinking

How to Treat Wastewater from Iron and Steel Industry ...
How to Treat Wastewater from Iron and Steel Industry ...

Rinse water and ,acid, bath dumps are discussed together because both contain the same noxious compounds—copper, zinc, ,chromium, and ,acid,—and are related in other ways. Of these two wastes, rinse waters contain the larger mass of contaminant—90 per cent of the total in one study.

SIPS2019 - FLOGEN
SIPS2019 - FLOGEN

[5] Choi C.Y., Lee Y.H. Treatment of Zinc Residues by Ausmelt Technology at Onsan Zinc Refinery. Proceedings of the REWAS’99 - Global Symposium on Recycling Waste Treatment and Clean Technology. - San Sebastian, Spain, 1999, 2: pp. 1613-1622. [6] Creedy S. et al. Sustainable Treatment of Zinc ,Containing, Secondary Materials Using

Calcium Carbonate Packed Electrochemical Precipitation ...
Calcium Carbonate Packed Electrochemical Precipitation ...

Electrochem. ,wastewater, treatment can induce ,calcium, phosphate pptn. on the cathode surface. This provides a simple yet efficient way for extg. ,phosphorus, from municipal ,wastewater, without dosing chems. However, the pptn. of amorphous ,calcium, phosphate (ACP) is accompanied by the pptn. of calcite (CaCO3) and brucite (Mg(OH)2).

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City