STUDY OF THE PROCESS OF DECOMPOSITION OF ZINC CONCENTRATE WITH HYDROCHLORIC ACID

2021 ◽  
pp. 28-30
Author(s):  
Mansur Sirgievich Rosilov
Keyword(s):  
Hydrochloric Acid ◽  
Zinc Concentrate

scholarly journals RESEARCH OF KINETIC CHARACTERISTICS OF THE PROCESS OF DECOMPOSITION OF ZINC CONCENTRATE WITH HYDROCHLORIC ACID

2020 ◽  
pp. 48-51
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Zinc Chloride ◽  
Effect Of Temperature ◽  
Kinetic Characteristics ◽  
Optimal Parameters ◽  
Zinc Extraction ◽  
Theoretical Justification ◽  
Variable Parameters ◽  
Zinc Concentrate

The aim of the study was the theoretical justification of the kinetic characteristics of the process of producing zincchloride from zinc concentrate of the Khandiza deposit. For this, the effect of temperature and dura tion of the process of autoclave zinc extraction in a 28% hydrochloric acid solution was studied at a ratio of Zn: HCI = 1:1.1. Variable parameters were the temperature of 70, 80 and 90 °C and the duration of the leaching process of 6, 8 and 10 hours. The optimal parameters for the production of zinc chloride were determined.

Fine Structure of Platelet Interaction with a New Microcrystalline Collagen Preparation

1974 ◽  
Vol 32 ◽  
pp. 58-59
Author(s):  
W. H. Zucker ◽  
R. G. Mason
Keyword(s):  
Fine Structure ◽  
Platelet Aggregation ◽  
Hydrochloric Acid ◽  
Whole Blood ◽  
Platelet Adhesion ◽  
Hemostatic Agent ◽  
Native Collagen ◽  
Fibrillar Morphology ◽  
Clinical Interest ◽  
New Form

Platelet adhesion initiates platelet aggregation and is an important component of the hemostatic process. Since the development of a new form of collagen as a topical hemostatic agent is of both basic and clinical interest, an ultrastructural and hematologic study of the interaction of platelets with the microcrystalline collagen preparation was undertaken.In this study, whole blood anticoagulated with EDTA was used in order to inhibit aggregation and permit study of platelet adhesion to collagen as an isolated event. The microcrystalline collagen was prepared from bovine dermal corium; milling was with sharp blades. The preparation consists of partial hydrochloric acid amine collagen salts and retains much of the fibrillar morphology of native collagen.

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