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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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Decolorant Polymer Color Remover for Effluent Water ...
Decolorant Polymer Color Remover for Effluent Water ...

Buy the high quality and highly effective ,decolorant polymer color remover for effluent water treatment, with reasonable price from Cleanwater Chemicals. Our factory has advanced technology and equipment at your service. Should you are interested in it, welcome to get the free sample from us.

Dicyandiamide (DCDA) Companies suppliers manufacturers ...
Dicyandiamide (DCDA) Companies suppliers manufacturers ...

Dicyandiamide (DCDA,) Directory or List of ,Dicyandiamide (DCDA,) companies like ,Dicyandiamide (DCDA,) suppliers, manufacturers, exporters, importers, wholesalers, distributors, traders, dealers etc. Find details like Phone Numbers, major chemical items, business activities, certifications, business regions, year of establishment of respective chemical companies.

Diversity Physiology and Niche Differentiation of ...
Diversity Physiology and Niche Differentiation of ...

DIVERSITY OF AMMONIA-OXIDIZING ARCHAEA. Shortly after these insights from metagenomics, the isolation of the first ammonia-oxidizing archaeon (AOA), Nitrosopumilus maritimus SMC1 of the until then enigmatic group I.1a archaea, was reported ().Members of this lineage are ubiquitously distributed in open ocean and coastal waters and have been demonstrated to represent 20% to 30% of marine ...

Process for cleaning wastewater and recirculating water in ...
Process for cleaning wastewater and recirculating water in ...

In ,acidic, to weakly ,alkaline, waters, as encountered in the paper industry, the amino groups on the large surface of the polymers are for the most part protonated and thus carry a positive charge. Owing to the high charge density, all anionic substances which come into contact with the cationic surface are immediately adsorbed, regardless of their chemical composition in other respects.

Chemicals from A to Z
Chemicals from A to Z

Due to the excellent stability over a wide pH range, eco-friendly profile and compatibility with a wide range of cosmetic ingredients, ACNIBIO series are used in skin care lotions and creams, body moisturizers, suncare and hair styling products.

Mini Review on the Structure and Properties ...
Mini Review on the Structure and Properties ...

29/11/2018, · In addition, g-C 3 N 4 has the ability to resist attacks from heat, strong acid, and strong ,alkaline, solution . g-C 3 N 4 has a unique ability to be simply prepared by thermally polycondensing the cheap N-rich precursors, such as dicyanamide, cyanamide, melamine, melamine cyanurate, and urea, and this is unlike the other metal-containing photocatalysts that require costly metal salts for ...

Mini Review on the Structure and Properties ...
Mini Review on the Structure and Properties ...

29/11/2018, · In addition, g-C 3 N 4 has the ability to resist attacks from heat, strong acid, and strong ,alkaline, solution . g-C 3 N 4 has a unique ability to be simply prepared by thermally polycondensing the cheap N-rich precursors, such as dicyanamide, cyanamide, melamine, melamine cyanurate, and urea, and this is unlike the other metal-containing photocatalysts that require costly metal salts for ...

Room-temperature synthesis of nanoporous 1D microrods of ...
Room-temperature synthesis of nanoporous 1D microrods of ...

8/8/2016, · A one-dimensional (1D) nanostructure having a porous network is an exceptional photocatalytic material to generate hydrogen (H2) and decontaminate ,wastewater, …

Dicyandiamide (DCDA) Companies suppliers manufacturers ...
Dicyandiamide (DCDA) Companies suppliers manufacturers ...

Dicyandiamide (DCDA,) Directory or List of ,Dicyandiamide (DCDA,) companies like ,Dicyandiamide (DCDA,) suppliers, manufacturers, exporters, importers, wholesalers, distributors, traders, dealers etc. Find details like Phone Numbers, major chemical items, business activities, certifications, business regions, year of establishment of respective chemical companies.

Mini Review on the Structure and Properties ...
Mini Review on the Structure and Properties ...

29/11/2018, · In addition, g-C 3 N 4 has the ability to resist attacks from heat, strong acid, and strong ,alkaline, solution . g-C 3 N 4 has a unique ability to be simply prepared by thermally polycondensing the cheap N-rich precursors, such as dicyanamide, cyanamide, melamine, melamine cyanurate, and urea, and this is unlike the other metal-containing photocatalysts that require costly metal salts for ...

Study of the modification mechanism of heavy metal ions ...
Study of the modification mechanism of heavy metal ions ...

This is due to the following reasons: first, the surface of the activated carbon is oxidized by nitric acid, resulting in the formation of a large number of weak ,acidic, carboxyl groups 33 and some –NO 2 groups. These ,acidic, groups are capable of the acid–base neutralization of ,dicyandiamide, during …

Decolorant Polymer Color Remover for Effluent Water ...
Decolorant Polymer Color Remover for Effluent Water ...

Buy the high quality and highly effective ,decolorant polymer color remover for effluent water treatment, with reasonable price from Cleanwater Chemicals. Our factory has advanced technology and equipment at your service. Should you are interested in it, welcome to get the free sample from us.

Updated draft screening assessment - Certain organic flame ...
Updated draft screening assessment - Certain organic flame ...

Discharges to the environment can be direct or via municipal ,wastewater, treatment systems. ... ,dicyandiamide, or hydrogen cyanide. ... melamine hydrolyzes under conditions catalyzed by strong ,alkaline, and ,acidic, solutions such as mineral acid and inorganic alkali (Crews et al. 2005). This process proceeds stepwise, with the loss of first, ...

118037re - MDPI
118037re - MDPI

Melamine is produced by the thermal condensation of ,dicyandiamide, at ... and cyanuric acid by hydrolysis under ,acidic, conditions [5,6]. The dissociation constants pKa are 5.0 for melamine, 4.5 and 9.4 for ammeline, 1.8, 6.9, and 13.5 for ammelide, and 6.9 for cyanuric acid. ,Alkaline, hydrolysis of melamine produces ammeline and ...

Electrochemical Flocculation Integrated Hydrogen Evolution ...
Electrochemical Flocculation Integrated Hydrogen Evolution ...

ants in neutral ,wastewater,, which was widely used in the field of environmental governance.[5] ... of-the-art Pt-based materials in ,acidic, or ,alkaline, electrolyte.[7] Recently, ... The ,dicyandiamide, was acted as the carbon and nitrogen sources for nitrogen-doped carbon nano-

Diversity Physiology and Niche Differentiation of ...
Diversity Physiology and Niche Differentiation of ...

DIVERSITY OF AMMONIA-OXIDIZING ARCHAEA. Shortly after these insights from metagenomics, the isolation of the first ammonia-oxidizing archaeon (AOA), Nitrosopumilus maritimus SMC1 of the until then enigmatic group I.1a archaea, was reported ().Members of this lineage are ubiquitously distributed in open ocean and coastal waters and have been demonstrated to represent 20% to 30% of marine ...

apam anionic polyacrylamide as thickening agent mc ...
apam anionic polyacrylamide as thickening agent mc ...

The Anionic Polyacrylamide (APAM) is suitable in the treatment of the weakly ,acidic, to ,alkaline waste water, in the industries such as the chemical industry, the foodstuff industry, the dyeing processing, the fiber production and the metal processing etc. Free Inquiry

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