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Register a new userCharacterization of a Vulcanized Waste Rubber Treated with Sulphuric Acid as Ions - Exchanger for Cu٢+ and Ni٢+ Ions
دراسة خصائص نفايات المطاط المفلكن المعالجة بحمض الكبريت كمبادلات أيونية للأيونين +٢Cu٢+Ni
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Added by
Damascus University ورقة بحثية
Publication date
1999
fields
Chemistry
and research's language is
العربية
Created by
Shamra Editor
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درسنا في هذا البحث بعض خواص المبادل الأيوني المحضر من تفاعل النفاية المطاطية مع حمض الكبريت، في تبادله مع الأيونين (Cu٢+, Ni+ ٢) فوجدنا أن سعة المبادل المحسوبة وفق نقصان تركيز الأيون في المحلول الحر تختلف باختلاف الأيون فكانت«٤» ملي مكافىء/غرام من أجل الأيون Ni + ٢ و ٢,٧ ميلي مكافئ/غرام للأيون 2+Cu.
This work investigated some characters of the ion-exchanger. The prepared ion exchanger was carried out from the reaction of a waste rubber with concentrated sulphuric acid, through the interchange of its counter ion with the metal - ions of “Cu٢+ and Ni٢+“. Many observation were seen: First, the capacity of the exchanger has greater value (٤ meq/g) in the case of “Ni٢+” ion.
References used
B.FALAZI, M.R. BAZZET, A.M.SUBAHI, Chlorination of Vulcanized Waste Rubber The ٣٦ th Science Week. Aleppo1996
B.FALAZI, M.R. BAZZET, A.M. SUBAHI, Halogenation of the Vulcanized Rubber Residues The Second Syrian-Egyptian Conference of Chemical Engineering1997
rate research
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Mixtures of ammonium acetate and ammonium tartrate in the presence of
benzyl alkyl dimethyl ammonium chloride (benzalkonium chloride) were used
for sealing sulphuric acid anodized aluminium.
Mixtures of ammonium acetate and ammonium tartrate exhib
ited
synergistic sealing effect, which offered excellent durable corrosion protection
to the surface coating formed by anodizing the aluminium alloy. Moreover the
synergistic effect of benzalkonium chloride with tartrate offered boehmite free
sealed surface coating.
Quality and durability of the sealed aluminium oxide films have been
assessed using standard control sealing quality tests and well-known
salt- spray (fog) test (ASTM B 117-97).
Five derivatives of Formazn (FM1–FM5) were prepared through reaction between
benzaldehydphenylhydrazone with five diazonium salts by a reaction ratio of 1:1 in
alkaline medium. The hydrazone was prepared through the reaction between
phenylhydrazin
e and benzaldehydeby a reaction ratio of 1:1 in a slight acidic medium.
Crystals of formazans resulting from recrystalization were formed by using different
solvents and show variation of solubility among these formazans according to the kind of
the solvent and the kind of diazonium salt used. Their purity was studied by using thin
layer chromatography. The melting point of the prepared hydrazone and the resulting
Formazan complexes were complexes with lead (II), copper(II) and cadmium were
successfully prepared and studied by using UV and IR spectroscopy. These complexes
were used as ionophors and applied as electrically active materials in the preparation of
ion-selective membranes for the mentioned metal ions.
Some samples of alumina supporting with sulfate ions and molybdenium were
prepared by impregnation method. Supported samples were calcinated at 550°C for 6h.
Presence of sulfate ions and molybdenium lead to decreasing of the specific surface area o
f
alumina, and in the ease of molybdenium the decreasing value was higher. The total pore
volume was decreased with the pore size was increased. XRD patterns showed that the
incorporation of sulfate ions and molybdenium did not affect crystalin structure of
alumina. FTIR spectra showed the bonding between sulfate ionsmolybdenium
and
alumina. The TG-DTA studies showed that the losses mass was decreased when the sulfate
ions and molybdenium were incorporated, sulfate ions and molybdenium oxide
decomposed at ~700°C and ~800°C respectively .
A new ion exchanger has been prepared from syrian petroleum coke (S. P.
C) of high sulphur content. Preparation of this ion exchanger was carried out
by simple treatment of S. P. C with oleum at room temperature followed with
statical ion exchange
in aqueous sodium chloride solutions.
The First, SPC ion exchanger with granular structure resulted from
reacting 20 gr of the SPC granules with 20 ml of oleum. Where as a friable ion
exchanger was produced when 40 ml of oleum were used in the process.
The adsorption capacity of the two SPC ion exchangers was found out to be
100 mgeq and 170 mgeq respectively.
استخدام مياه الصرف الصحي المعالجة في نمو وانتاج البندورة المحمية
التحاليل الكيميائية والقياسات الفيزيائية.
التحليل الاحصائي
العناصر الغذائية
تصميم الترجمة.
مياه الصرف الصحي المعالجة.
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