Effects of destructive distillation on the uranium associated with selected naturally occurring carbonaceous substances.

نویسندگان

  • I A BREGER
  • R MEYROWITZ
  • M DEUL
چکیده

During the course of geochemical investigations on uraniferous coals and shales it became necessary to determine if dry distillation of these substances would result in the formation of volatile uranium compounds. Several selected substances have been retorted and material balances based on the uranium contents of the original substances and of the retort chars obtained from them indicate that, within the limits of accuracy of the analytical procedures employed, volatile uranium compounds are not formed.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY A Literature Review of Interaction of Oxidized Uranium Species and Uranium Complexes with Soluble Organic Matter by

Organic material is commonly found associated with uranium ores in sandstone-type deposits. This review of the literature summarizes the classes and separations of naturally occurring organic material but the emphasis is on soluble organic species. The main class of materials of interest is humic substances which ars high-molecularweight complex molecules that are soluble in alkaline solution. ...

متن کامل

Effects of Paclobutrazol and 24-Epibrassinolide on some morphological and biochemical characteristics of Salvia Officinalis under different irrigation regimes

Sage (Salvia officinalis L.) is cultivated worldwide especially in Mediterranean regions in which the leaves of this herb are widely used in pharmaceutical and food industries. Brassinolides and paclobutrazol are naturally occurring substances which modulate plant growth and development events and have been known to improve the crops tolerance to biotic and abiotic stresses. The effects of spra...

متن کامل

Naturally occurring ehrlichiosis in Egyptian dogs

Canine ehrlichiosis has emerged as one of the most clinically important tick-borne diseases affecting dogs. Eighty-five naturally infected dogs have been investigated, the most consistent clinical signs recorded were fever, emaciation and lymphoadenopathy, anemia, monocytosis, thrompocytopenia, hypoalbuminemia, elevation in liver enzymes and total bilirubin were the most remarkable changes asso...

متن کامل

Morphopathological study of naturally occurring ovine pulmonary adenocarcinoma in sheep in Fars province, Iran

Ovine pulmonary adenocarcinoma (OPA) is a contagious and transmissible lung cancer of sheepresembling human bronchiolo-alveolar carcinoma. In the present study, lungs of 9400 sheep slaughtered inFars province, Iran were examined morphopathologically. The OPA was diagnosed in the lungs of 21(0.22%) out of 9400 sheep. Frequency of involvement of different lobes in the affected lungs was includeda...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Science

دوره 120 3112  شماره 

صفحات  -

تاریخ انتشار 1954