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Koi Air Pump

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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Koi Air Pump
Radiation protection aspects of the use of zircon sand ...
Radiation protection aspects of the use of zircon sand ...

Zircon sand, contains high concentrations of natural radionuclides and is a typical example of an enhanced source. Using various techniques the characteristics of the original material were analysed and environmental ,radioactivity, was measured in the different significant points of the process.

Radioactivity in Zircon and Building Tiles : Health Physics
Radioactivity in Zircon and Building Tiles : Health Physics

In this study we found high concentrations of the radionuclides 226 Ra, 232 Th, 40 K in zircon sand. The average radium equivalent (A Ra + 1.26 A Th + 0.086 A K ) in zircon sand is 17,500 Bq kg −1 , which is 106 times as much as that in ordinary building materials.

Radioactivity in monazite zircon and
Radioactivity in monazite zircon and "radioactive black ...

Briefly discusses and tabulates observed values of ,radioactivity, in monazite, in several different types of ,zircon, grains, and in dark-colored or black metamict grains not previously recorded from the black ,sand, concentrates of the Nile delta at Rosetta.

Zircon & NORM information and guidance | Zircon Industry ...
Zircon & NORM information and guidance | Zircon Industry ...

Zircon, & NORM. Like many other rocks and minerals,, zircon, is a naturally-occurring, radioactive, material (NORM) that is used in many varied applications including ceramic tiles, sanitary ware, foundry and refractory materials, medical implants, consumer electronics and in the manufacture of jet engine parts., Radiation, from, zircon, is extremely low ...

Occupational exposure to natural radioactivity in a zircon ...
Occupational exposure to natural radioactivity in a zircon ...

1/10/2008, · The presence of uranium and thorium in the crystalline structure of, zircon, causes a sharp rise in its natural, radioactivity,, compared to other, sands, or soils. 2 . Materials and methods

Natural radioactivity in refractory manufacturing plants ...
Natural radioactivity in refractory manufacturing plants ...

1/7/2009, · In Italy, Bergamini et al. (1985) analysed zircon sands used in a refractory plant and related radiation protection aspects. They reported mean concentrations in zircon ,sand, of more than 700 Bq kg −1 and 3000 Bq kg −1 for 232 Th and 238 U, respectively.

Radionuclide Transfer in the Zirconium Oxychloride ...
Radionuclide Transfer in the Zirconium Oxychloride ...

concentrations of, radioactive, particles in the, zircon sand, from di erent batches and countries are obviously di erent. The activity concentration of radionuclides in the, zircon sand, are shown in Table1. It can be seen from the analysis results of the activity concentration of radionuclides in this table that the activity concentration of U-238, Th-232 and Ra-226 in di erent batches of, zircon sand, is di erent,

Assessment of the radiological impacts of a zircon sand ...
Assessment of the radiological impacts of a zircon sand ...

1/1/2005, · Zircon sands contain a significant concentration of natural radioactivity because thorium and uranium may substitute zirconium in the zircon crystal lattice. The concentration of radioactivity in zircon lies typically within the ranges 0.5–1 Bq g −1 and 1–5 Bq g −1 for 232 Th and 238 U, respectively ( …

Assessment of the radiological impacts of a zircon sand ...
Assessment of the radiological impacts of a zircon sand ...

The concentration of radioactivity in zircon lies typically within the ranges 0.5e1 Bq g ÿ1 and 1e5 Bq g ÿ1 for 232 Th and 238 U, respectively (NRPB, 1993).Some of the more common uses of zircon sands are in foundry, investment casting, ceramic, refractory brick and zirconium metal industries.

Is zircon or zircon sand radioactive? | Zircon Industry ...
Is zircon or zircon sand radioactive? | Zircon Industry ...

These are outlined in the recently published ZIA guidance 'Working safely with, zircon sand,'., Zirconia, and zirconium are not, radioactive Zirconia, (zirconium dioxide) and zirconium metal, which are made from, zircon,, are not, radioactive.

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