Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 13525609655

zhengzhou rsd gas field oily cuttings treatment equipments ltd

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

CONTACT US

Fill in the following information, we will contact you in the shortest possible time.

zhengzhou rsd gas field oily cuttings treatment equipments ltd
EXTRACTION OF GARLIC WITH SUPERCRITICAL CO AND ...
EXTRACTION OF GARLIC WITH SUPERCRITICAL CO AND ...

and “premium” garlic extracts in terms of yield and quality, with the latter being obtained using ,supercritical, carbon dioxide (SC-CO2) as the solvent. Yield ranged between 0.65 and 1.0% and increased with ,extraction, pressure (150-400 bar) at a constant temperature of 50°C. ,Extraction, temperature (35-60°C), on the other

SUPERCRITICAL EXTRACTION OF USED AUTOMOTIVE TIRE …
SUPERCRITICAL EXTRACTION OF USED AUTOMOTIVE TIRE …

Supercritical extraction,, which has been popular in the food processing industry, is recently gaining atten- ... magnesiumperchlorate ,anhydride,. Average molecular weights of the oil extracted were measured by a vapor pressure osmometer, Hitachi model 115, using benzene solvent and benzil as a

Ternary Copolymerization of Supercritical CO2 Propylene ...
Ternary Copolymerization of Supercritical CO2 Propylene ...

Huaan Supercritical Extraction Co. Ltd created the primary devices for supercritical fluid reaction, as shown in Fig. undesired reactions at higher temperature (loss of 1. A certain amount of loaded molecular sieve catalyst, activated epoxy propane and maleic anhydride, were put …

"Supercritical Fluid Extraction of Valuable Chemicals" by ...

The SFE ,extraction, results showed that a maximum of 90 % of caffeine was extracted from this pyrolysis oil using 10% EtOH/90% CO2 at 35.2 MPa, 333 K and 1 mL/min at ,extraction, time of 20 min. Later, purification of 99.9 % of caffeine was attainable from the extract stream by ,supercritical, fluid chromatography at 14.5 MPa, 333 K and 2 mL/min, using 10-30% ethanol gradient as a co-solvent in CO2.

Ternary Copolymerization of Supercritical CO2 Propylene ...
Ternary Copolymerization of Supercritical CO2 Propylene ...

Huaan Supercritical Extraction Co. Ltd created the primary devices for supercritical fluid reaction, as shown in Fig. undesired reactions at higher temperature (loss of 1. A certain amount of loaded molecular sieve catalyst, activated epoxy propane and maleic anhydride, were put …

Ternary Copolymerization of Supercritical CO2 Propylene ...
Ternary Copolymerization of Supercritical CO2 Propylene ...

Huaan ,Supercritical Extraction, Co. Ltd created the primary devices for ,supercritical, fluid reaction, as shown in Fig. undesired reactions at higher temperature (loss of 1. A certain amount of loaded molecular sieve catalyst, activated epoxy propane and maleic ,anhydride,, were put …

SUPERCRITICAL EXTRACTION OF USED AUTOMOTIVE TIRE …
SUPERCRITICAL EXTRACTION OF USED AUTOMOTIVE TIRE …

Supercritical extraction,, which has been popular in the food processing industry, is recently gaining atten- ... magnesiumperchlorate ,anhydride,. Average molecular weights of the oil extracted were measured by a vapor pressure osmometer, Hitachi model 115, using benzene solvent and benzil as a

Supercritical Fluid Extraction
Supercritical Fluid Extraction

There has been growing interest in ,supercritical, Suid ,extraction, (SFE) in the past few years due to its numerous advantages over liquid ,extraction, (rapid- ... acetic ,anhydride,, in the presence of organic bases such as pyridine) and silylation (with hexamethyl-

Behavior of an Organic Solvent Drop During the ...
Behavior of an Organic Solvent Drop During the ...

This process, denominated supercritical fluid extraction of emulsions (SFEE),9 consists in extracting the organic solvent from the droplets of an oil-in-water emulsion by using super-critical carbon dioxide. If a solute is dissolved in the organic solvent, the extraction causes the precipitation of the solute.

Supercritical Fluid Extraction
Supercritical Fluid Extraction

There has been growing interest in ,supercritical, Suid ,extraction, (SFE) in the past few years due to its numerous advantages over liquid ,extraction, (rapid- ... acetic ,anhydride,, in the presence of organic bases such as pyridine) and silylation (with hexamethyl-

"Supercritical Fluid Extraction of Valuable Chemicals" by ...

The SFE ,extraction, results showed that a maximum of 90 % of caffeine was extracted from this pyrolysis oil using 10% EtOH/90% CO2 at 35.2 MPa, 333 K and 1 mL/min at ,extraction, time of 20 min. Later, purification of 99.9 % of caffeine was attainable from the extract stream by ,supercritical, fluid chromatography at 14.5 MPa, 333 K and 2 mL/min, using 10-30% ethanol gradient as a co-solvent in CO2.

"Extraction of algae oil in supercritical co2 using a ...

The use of a soybean surfactant in ,supercritical, fluid matrix has been examined for recovering oil from microalgae (Chlorella pyrenoidosa). Soybean lecithin was first purified with acetone and ethanol and later acetylated with acetic ,anhydride, to produce a mixture of acetylated products. Then, N-Acetylated phosphatidylethanolamine (PE) was separated with acetone and further purified by column ...

Supercritical carbonic anhydride wall-breaking method for ...
Supercritical carbonic anhydride wall-breaking method for ...

The invention discloses a method using ,supercritical, carbon dioxide to perform bee pollen broken-face. Bee pollen is put in an ,extraction, plant of ,supercritical, carbon dioxide, to react for a certain time in ,supercritical, carbon dioxide liquid at the proper pressure and temperature, a vent valve is opened to rapidly empty carbon dioxide, so that a pollen cell expands acutely due to larger ...

"Extraction of algae oil in supercritical co2 using a ...

The use of a soybean surfactant in ,supercritical, fluid matrix has been examined for recovering oil from microalgae (Chlorella pyrenoidosa). Soybean lecithin was first purified with acetone and ethanol and later acetylated with acetic ,anhydride, to produce a mixture of acetylated products. Then, N-Acetylated phosphatidylethanolamine (PE) was separated with acetone and further purified by column ...

Comparison of Supercritical Fluid Extraction with in situ ...
Comparison of Supercritical Fluid Extraction with in situ ...

Abstract. A rapid, efficient method for the ,extraction, of pentachlorophenol (PCP) from wood and leather based on ,supercritical, fluid ,extraction, (SFE) with in s

Materials | Free Full-Text | Preparation of Poly-(Methyl ...
Materials | Free Full-Text | Preparation of Poly-(Methyl ...

The supercritical CO 2 -based technologies have been widely used in the formation of drug and/or polymer particles for biomedical applications. In this study, nanoparticles of poly- (methyl vinyl ether-co-maleic anhydride) (PVM/MA) were successfully fabricated by a process of solution-enhanced dispersion by supercritical CO 2 (SEDS).

Extraction methods qualitative and quantitative ...
Extraction methods qualitative and quantitative ...

2.4 ,Supercritical, fluid ,extraction Supercritical, gases such as carbon dioxide, nitrogen, methane, ethane, ethylene, nitrous oxide, sulfur dioxide, propane, ... treated with few drops of acetic ,anhydride,. Then the solution is boiled and cooled and the formation of brown ring at the junction indicates the presence of phytosterols [14].

EXTRACTION OF GARLIC WITH SUPERCRITICAL CO AND ...
EXTRACTION OF GARLIC WITH SUPERCRITICAL CO AND ...

and “premium” garlic extracts in terms of yield and quality, with the latter being obtained using ,supercritical, carbon dioxide (SC-CO2) as the solvent. Yield ranged between 0.65 and 1.0% and increased with ,extraction, pressure (150-400 bar) at a constant temperature of 50°C. ,Extraction, temperature (35-60°C), on the other

Chat Online Inquiry Email

Business cooperation

+86 13525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City