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

oil gas field fracturing flow-back fluids treatment chart

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 gas field fracturing flow-back fluids treatment chart
Weak Nucleophile/Base (and strong acid) Conditions (H2O ...
Weak Nucleophile/Base (and strong acid) Conditions (H2O ...

Also, methyl and primary alcohols react ,under, strong HX acid conditions via SN2, while secondary, and tertiary alcohols react ,under, strong HX acid conditions via SN1 (HX = HCl, HBr, HI). All alcohols react via E1 reactions with H2SO4/ . Rearrangements are always a possibility in carbocation chemistry.

Highly Stabilized α‑Helical Coiled Coils Kill Gram ...
Highly Stabilized α‑Helical Coiled Coils Kill Gram ...

Here, we show that a series of novel peptides, designed by combining an α-helical coiled coil model, knowledge of the specificity of proteolysis and major parameters of AMPs, exhibited efficient activity against all tested Gram-negative bacteria ,under acidic condition, and demonstrate low toxicity.

The C-Terminal O-S Acyl Shift Pathway under Acidic ...
The C-Terminal O-S Acyl Shift Pathway under Acidic ...

Peptide-thioester is a pivotal intermediate for peptide ligation and N-, C-terminal cyclization. In this study, desired pathway and the side products of two C-terminal handles, hydroxyethylthiol (HET) and hydroxypropylthiol (HPT) are described in different conditions as well as kinetic studies. In addition, a new mechanism of C-terminal residue racemization is proposed on the basis of ...

acid | Dangerous Water
acid | Dangerous Water

When the ,acid, levels are too high in our bodies, it tries to excrete the toxic ,waste,. Some, however, is saved in fat cells and worse, absorbed into the blood and carried through the bloodstream to all parts of the body. A combination of an alkaline diet and Kangen alakaline ,water, greatly reduces the toxic ,acid, inside of our bodies.

Why Are Acids Dangerous? An Overview | MLi Environmental
Why Are Acids Dangerous? An Overview | MLi Environmental

Pour water into water, and there is, no, reaction. However, pour one part acid (pH2) into one part of water (pH7) and you will see a reaction, resulting in ~pH3. A reaction can be as simple as slight fuming, or as violent as an explosion. The reaction occurs due to oxygen and …

Passion Fruit Quality under Acidic Soil Conditions
Passion Fruit Quality under Acidic Soil Conditions

Deficiencies in these minerals may have led to a low photosynthetic rate and SPAD index ,under, the higher pH ,condition,. With excessive ,acidic, soil (pH 3.5), vegetative growth, photosynthetic rate, and the number of flowers were as high as those at pH 4.5, although the fruit-set percentage and fruit quality were lower.

Heterogeneous Ni- and Cd-Bearing Ferrihydrite ...
Heterogeneous Ni- and Cd-Bearing Ferrihydrite ...

Under acidic condition,, the limited hydrolysis of metal ions resulted in their small amounts of incorporation in ferrihydrite lattices (<0.1%), several orders of magnitude lower than those reported at neutral and alkaline pH conditions. The presence of Ni 2+ or Cd 2+

Is it dangerous to drink slightly acidic water? - Quora
Is it dangerous to drink slightly acidic water? - Quora

There is little evidence which suggests consumption of acidic water is dangerous from a health point of view, however many public water supplies (in the UK), do not produce water that has pH level of much less than 6.0–6.5.

SAMPLE PAPER CHEMISTRY THEORY (043) MM:70 Time: 3 Hours
SAMPLE PAPER CHEMISTRY THEORY (043) MM:70 Time: 3 Hours

(I)When Propene reacts with water ,under acidic condition, then the product is a)Propan-1-ol b) Propan-2-ol c)Propane D)Propanone (II)Propyne on hydration in the presence of HgSO 4 and Sulphuric acid will produced a) Propan-1-ol b)Propan-2-ol c)Propane d)Propanone OR

CN103980280A - Method for synthesizing quinazolino ...
CN103980280A - Method for synthesizing quinazolino ...

The invention relates to a method for synthesizing quinazolino indazole derivatives ,under acidic condition,, which comprises the following steps: ,under, existence of a catalyst and an oxidizing agent, an intramolecular dehydrogenation coupling reaction of 2-aryl-3-aryl amino quinazolinone derivatives is produced in an ,acidic, organic solvent so as to obtain the quinazolino indazole derivatives ...

Dangerous Exposures: Visualizing Work and Waste in the ...
Dangerous Exposures: Visualizing Work and Waste in the ...

5/7/2019, · [Today, the list of potentially polluting emissions, wastes, and residues that have been identified as associated with historical manufacturing in the region includes an unusually large number of compounds: acids, alum, arsenic, barium, copper, hydrogen cyanide, muriatic ,acid, (hydrochloric ,acid,), alkalis, asbestos, chlorinated organic wastes, galligu (sulphurous ,waste,), lead, mercurcy, and nitric ,acid,…

oxidation of alcohols
oxidation of alcohols

This page looks at the ,oxidation of alcohols, using acidified sodium or potassium dichromate(VI) solution. This reaction is used to make aldehydes, ketones and carboxylic acids, and as a way of distinguishing between primary, secondary and tertiary alcohols.

The C-Terminal O-S Acyl Shift Pathway under Acidic ...
The C-Terminal O-S Acyl Shift Pathway under Acidic ...

Hydroxypropylthiol(TIGGIR-HPT) ,under acidic, conditions. However, a systematic approach for O-S acyl shift has not been fully established because the core structures for O-S acyl shift were susceptible to side reactions such as hydrolysis and C-terminal racemization [31,32,37,40], which have been found in both intermolecular [31,32,37]

How to manage dangerous good wastes | Environment ...
How to manage dangerous good wastes | Environment ...

24/8/2020, · water-reactive. There may be other unlisted hazardous properties. DGs can cause explosions or fires, serious injury, death, and large-scale damage. The Dangerous Goods Act 1985 (DG Act) defines which substances are DGs. Examples of DGs: flammable liquids (petrol, kerosene, turpentine, flammable paints etc.), corrosives, (hydrochloric acid)

Dangerous Acids in the Workplace Scale Removal
Dangerous Acids in the Workplace Scale Removal

Dangerous, to aquatic life., Sulphamic acid, is very toxic to, aquatic, organisms such as fish. Because it can cause long term adverse effects in, aquatic, environments,, sulphamic acid, should not be released into waterways. This creates significant, waste, management issues., Waste, disposal costs

hazardous-and-liquid-wastes
hazardous-and-liquid-wastes

A levy on liquid ,waste, creates a strong financial incentive for companies to reduce the generation of potentially ,dangerous, liquid wastes, explore cleaner production technologies and increase the recovery of reusable components from liquid ,waste,, such as oil or ,water,. ,Dangerous, goods - In addition to complying with relevant ,waste, legislation, a person undertaking activities with ,waste, that is also classified as a ‘,dangerous, …

Is Flouride in drinking water dangerous? | Yahoo Answers
Is Flouride in drinking water dangerous? | Yahoo Answers

2/12/2006, · However, the substance added to the ,water, supply is actually something called fluorosilicic ,acid,, which is purchased in bulk from chemical companies. Fluorosilicic ,acid, is very different from flouride; as a matter of fact, it is an EPA-regulated toxic ,waste,.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City