Effect of Aluminum Oxide on the Thermal Dissociation Kinetics of Calcium Sulfate in a Vacuum.

被引：0
|
作者：
Mamontev, V.A.
Aziev, R.G.
Shipovskov, V.S.
Men'shikov, V.V.
机构：
来源：
Neorganiceskie materialy | 1986年 / 22卷 / 09期
关键词：
CATALYSTS - Alumina - CHEMICAL REACTIONS - Reaction Kinetics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study was made of the effect of the quantity of aluminum oxide on the rate of thermal decomposition of calcium sulfate in a vacuum. It was established that a vacuum of 2. 6 Pa and the addition of aluminum oxide in a CaSO//4/Al//2O//3 molar ratio of 1 to 1 make it possible to greatly reduce the reaction temperature and to intensify the process of thermal decomposition of calcium sulfate. It is shown that at 1320 K the rate of dissociation of CaSO//4 is determined by the rate of diffusion of the reagents through the layer of reaction product formed, while at 1420K it is determined by the rate of the chemical reaction at the phase boundary.
引用
收藏
页码：1520 / 1524
相关论文
共 50 条
  • [21] Kinetics of calcium sulfoaluminate formation from tricalcium aluminate, calcium sulfate and calcium oxide
    Li, Xuerun
    Zhang, Yu
    Shen, Xiaodong
    Wang, Qianqian
    Pan, Zhigang
    CEMENT AND CONCRETE RESEARCH, 2014, 55 : 79 - 87
  • [22] EFFECT OF TITANIA ON THE DEHYDRATION KINETICS OF 12-(CALCIUM OXIDE)-7-(ALUMINUM OXIDE) HYDRATES
    NANDI, DK
    RAY, P
    DASPODDAR, PK
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 1993, 70 (06) : 503 - 506
  • [23] INVESTIGATION OF THERMAL-DISSOCIATION KINETICS AND RESTORATION OF CALCIUM ULTRAPHOSPHATE
    AZIEV, RG
    GOLUBCHENKO, SV
    LAZORIAK, BI
    DOKLADY AKADEMII NAUK SSSR, 1986, 289 (05): : 1126 - 1129
  • [24] DERIVATOGRAPHIC STUDY OF KINETICS OF DEHYDRATATION AND THERMAL DISSOCIATION OF ALUMINUM NITRATE NONAHYDRATE
    YANAKIEV, NI
    TRENDAFE.D
    DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1972, 25 (12): : 1641 - 1643
  • [25] GROWTH KINETICS OF DISCONTINUOUS THERMAL OXIDE FILMS - ALUMINUM
    BARTLETT, RW
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1964, 111 (08) : C187 - C188
  • [26] EFFECT OF ATMOSPHERE, LOAD AND TEMPERATURE ON THE BONDING OF PURE COPPER AND ALUMINUM ALLOY IN AN ULTRA-HIGH VACUUM.
    Maeda, Ryutaro
    Yamamoto, Hideo
    Kikai Gijutsu Kenkyusho Shoho/Journal of Mechanical Engineering Laboratory, 1988, 42 (02): : 75 - 81
  • [27] Kinetics of Gas Desorption during the Thermal Dissociation of Iron(III) Oxide
    Tanutrov, I. N.
    Sviridova, M. N.
    RUSSIAN METALLURGY, 2010, 2010 (05): : 375 - 378
  • [28] The retarding effect of citric acid on calcium sulfate nucleation kinetics
    Prisciandaro, M
    Lancia, A
    Musmarra, D
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (25) : 6647 - 6652
  • [29] KINETICS OF CALCIUM-SULFATE REDUCTION .1. INTERACTION OF CALCIUM-SULFATE WITH CARBON OXIDE RESULTING SULFIDE FORMATION
    BEREZKINA, LG
    BORISOVA, SI
    RAZHEV, VM
    TARATORKIN, VV
    FLISSKAYA, YM
    ZHURNAL FIZICHESKOI KHIMII, 1992, 66 (09): : 2567 - 2570
  • [30] Growth kinetics and mechanisms of aluminum-oxide films formed by thermal oxidation of aluminum
    Jeurgens, LPH
    Sloof, WG
    Tichelaar, FD
    Mittemeijer, EJ
    JOURNAL OF APPLIED PHYSICS, 2002, 92 (03) : 1649 - 1656
12345