• Dolomite Waste Recovery- RG Recycling Group

    2021-5-21  Dolomite Waste Recovery - RG Recycling Group a global leader in recycling equipment supply and waste processing management.

  • Get Price
  • Recycling the waste dolomite powder with excellent ...

    DP was collected from a quarry located in Shiyan, Hubei Province, China, where a large amount of waste powder was produced in the process of processing dolomite building stone, including blasting, cutting, crushing, handling.

  • Get Price
  • Dolomite application for the removal of nutrients from ...

    2018-3-1  This suspended dolomite played a dual role in the electrolytic process, namely, as a hydrogen ion neutralizer and phosphate precipitator. The hydrogen ion neutralization by the dolomite could have gradually reduced the solution pH, which was most likely responsible for the rise in the TAN removal, as the dolomite dosage was increased.

  • Get Price
  • Process for producing fuel from plastic waste material

    A process for producing fuel from a plastic waste material by using a dolomite catalyst comprising: (a) performing pyrolysis of the plastic waste material to produce a liquid material for cracking, and (b) mixing said liquid material for cracking with a dolomite catalyst prepared by calcining natural ore dolomite at a temperature of 900° C. or above, and cracking said liquid material at a temperature from about 300°

  • Get Price
  • Comparative study of natural dolomitic rock and

    2015-2-1  The XRD patterns of the dolomite and waste mixed seashells before and after the calcination at 600 or 800 °C are shown in Fig. 2. A majority of the CaCO 3 in the as-received dolomite was in the dolomitic form that co-existed with trigonal MgCO 3 (Fig. 2A). Calcination at 600 °C converted the MgCO 3 into MgO that grew on the CaMg(CO 3) 2 phase . The low peak intensity of the MgO phase

  • Get Price
  • Waste dolomite powder as an adsorbent of Cd, Pb(II), and ...

    2017-8-28  was waste dolomite powder generated in large quantities in the process of mechanical dedusting of dolomite aggre-gates, used for building and road construction purposes in southern Poland. Our chemical composition analyses (Gruszecka-Kosowska et al. 2015) showed that CaO, MgO, and SiO 2 were dominant in the chemical composition of raw dolomite.

  • Get Price
  • Waste dolomite powder as an adsorbent of Cd, Pb(II),

    2017-8-1  Waste dolomite powder is inconvenient during storage due to fine particle size; therefore, its practical application is needed. The sorption experiments were conducted with variables: initial metal concentration (500, 1000, and 2000 mg/dm3) in single- and multi-element solutions, adsorbent dose (0.5, 1, and 2 g), and contact time (45, 90, and 180 min). Results showed that dolomite powder removed all

  • Get Price
  • TRANSESTERIFICATION OF WASTE FRYING OIL (WFO)

    2016-2-16  dolomite respectively (Ngamcharussrivichai et al, 2007). Therefore, the calcination process is considered as a respective method for thermally modification of the dolomite which led to the changing of its morphological properties. Figure-2. SEM images at 500x magnification power of raw (left) and calcined dolomite (right). Figure-3.

  • Get Price
  • Production of gasoline from municipal solid waste via ...

    2020-12-4  A techno-economic analysis of the process of producing gasoline via steam gasification of municipal solid waste (MSW) using dolomite catalysts, followed by a methanol synthesis and a methanol-to-gasoline process (SGMG) was conducted using an Aspen Plus model and an economic assessment. The process includes six steps: MSW pretreatment, steam gasification of MSW to produce syngas,

  • Get Price
  • An Alternative Process Design For Production of Mg(OH)2 ...

    2019-1-10  2 was investigated by using waste dolomite (-10 mm particle size) samples, supplied from ESAN Magnesium Co. in Turkey. The proposed process was composed three metallurgical steps: Calcination of [CaMg(CO 3) 2], leaching of calcine in H 2SO 4 medium and Mg(OH) 2 precipitation by using NH 4OH. Firstly, dolomite was calcined at 1150 C for CO

  • Get Price
  • Waste dolomite powder as an adsorbent of Cd, Pb(II), and ...

    2017-8-28  was waste dolomite powder generated in large quantities in the process of mechanical dedusting of dolomite aggre-gates, used for building and road construction purposes in southern Poland. Our chemical composition analyses (Gruszecka-Kosowska et al. 2015) showed that CaO, MgO, and SiO 2 were dominant in the chemical composition of raw dolomite.

  • Get Price
  • Dolomite used in phosphate water treatment:

    2019-5-1  Dolomite used in phosphate water treatment: Desorption processes, recovery, reuse and final disposition ... generating waste, a new environmental problem if it could not be properly disposed. In this work, the main objectives were to study the phosphate desorption process for the recovery and reuse of dolomite and to evaluate the possibilities ...

  • Get Price
  • An Alternative Process Design For Production of Mg(OH)2 ...

    2019-1-10  2 was investigated by using waste dolomite (-10 mm particle size) samples, supplied from ESAN Magnesium Co. in Turkey. The proposed process was composed three metallurgical steps: Calcination of [CaMg(CO 3) 2], leaching of calcine in H 2SO 4 medium and Mg(OH) 2 precipitation by using NH 4OH. Firstly, dolomite was calcined at 1150 C for CO

  • Get Price
  • Waste dolomite powder as an adsorbent of Cd, Pb(II),

    2017-8-1  Sorption experiments of the Cd, Zn, and Pb(II) ions from aqueous solutions on waste dolomite powder were investigated. Waste dolomite powder is inconvenient during storage due to fine particle size; therefore, its practical application is needed. The sorption experiments were conducted with variables: initial metal concentration (500, 1000, and 2000 mg/dm3) in single- and multi-element ...

  • Get Price
  • Utilizing the supernatant of waste sulfuric acid after dolomite ...

    2017-12-20  Additionally, in the dolomite neutralization process, nearly half of Mn 2+ in the waste sulphuric acid solution was removed. The experiments to investigate the effects of Mn 2+ and Ca 2+ on struvite crystallization revealed that the presence of Mn 2+

  • Get Price
  • TRANSESTERIFICATION OF WASTE FRYING OIL (WFO)

    2016-2-16  dolomite respectively (Ngamcharussrivichai et al, 2007). Therefore, the calcination process is considered as a respective method for thermally modification of the dolomite which led to the changing of its morphological properties. Figure-2. SEM images at 500x magnification power of raw (left) and calcined dolomite (right). Figure-3.

  • Get Price
  • Pyrolysis: A Sustainable Way to Generate Energy from

    2017-7-5  The process is aimed to produce biofuel. In the garret process, solid waste (Biomass) is allowed to mix with hot char and hot recycle gas in a specially designed chamber. This is then followed by pyrolysis at high temperature, usually above 800°C, and at a holding time of about 10 s. ... Waste olive husks: Dolomite

  • Get Price
  • A REVIEW OF THE TEXTILE INDUSTRIES WASTE WATER

    2016-9-9  process are separated using sedimentation; some of the sludge is returned to the tank as a source of microbes. A BOD removal efficiency of 90-95% can be achieved from this process, but is time consuming. Sludge formed as a result of primary and secondary treatment processes pose a major disposal problem.

  • Get Price
  • Process for producing fuel from plastic waste material

    Complete Patent Searching Database and Patent Data Analytics Services.

  • Get Price
  • 黄海明-东莞理工学院 - 生态环境与建筑工程学院 - dgut.edu.cn

    2019-4-28  Dolomite application for the removal of nutrients from synthetic swine wastewater by a novel combined electrochemical process, Chemical Engineering Journal 335 (2018) 665-675. 10) Tang, Shoufeng, Yuan, Deling*, Rao, Yandi,Li, Na, Qi, Jinbang, Cheng.

  • Get Price
  • TRANSESTERIFICATION OF WASTE FRYING OIL (WFO)

    2016-2-16  dolomite respectively (Ngamcharussrivichai et al, 2007). Therefore, the calcination process is considered as a respective method for thermally modification of the dolomite which led to the changing of its morphological properties. Figure-2. SEM images at 500x magnification power of raw (left) and calcined dolomite (right). Figure-3.

  • Get Price
  • Waste sludge from washing dolomite aggregates as a

    The amount of waste from washing dolomite aggregates increases continuously. Aggregates are washed to remove clayey pollutants.They consist of a large amount of clay minerals and carbonates. Their properties and amount depends on the type of raw material and type of washing technology.

  • Get Price
  • Production of gasoline from municipal solid waste via ...

    2020-12-4  A techno-economic analysis of the process of producing gasoline via steam gasification of municipal solid waste (MSW) using dolomite catalysts, followed by a methanol synthesis and a methanol-to-gasoline process (SGMG) was conducted using an Aspen Plus model and an economic assessment. The process includes six steps: MSW pretreatment, steam gasification of MSW to produce syngas,

  • Get Price
  • An analysis of the chemistry, mineralogy and texture of ...

    2019-10-26  waste. Slightly coarser fractions of the miner-al waste are then reused in other technological processes. Only a few percent of all generated waste dolomite powder is reused; i.e. as a filler in the production of bituminous road-surfaces. Mineral material is still relatively cheap and easy to obtain from deposits, whereas the waste ma-

  • Get Price
  • Dolomite sand not the solution to Manila Bay's solid

    2021-4-16  "Kung sasabihin ng government na mare-reduce ang solid waste because of the dumping of the dolomite, puwede ko pong sabihin na wala siyang [kinalaman] kasi it's not part of the whole process

  • Get Price
  • Utilizing the supernatant of waste sulfuric acid after dolomite ...

    2017-12-20  Additionally, in the dolomite neutralization process, nearly half of Mn 2+ in the waste sulphuric acid solution was removed. The experiments to investigate the effects of Mn 2+ and Ca 2+ on struvite crystallization revealed that the presence of Mn 2+

  • Get Price
  • 1 Deborah A. Kramer, Magnesite and Magnesia, from

    2016-3-27  The silicothermic process is based on the reaction of silica with carbon to give silicon metal which is subsequently used to produce magnesium by reaction with calcined dolomite. The Pidgeon and Magnetherm processes employ this procedure. The Pidgeon process is a batch process in which dolime and silicon are sized, briquetted, and cha rged into ...

  • Get Price
  • Dolomite – Its Processing and Application in Iron and ...

    2017-6-28  Dolomite is an anhydrous carbonate mineral. It is a double carbonate of calcium and magnesium (CaCO3.MgCO3). It is one of the important raw materials used in production of iron and steel. Dolomite contains theoretically 54.35 % of CaCO3 and 45.65 % of MgCO3 or 30.41 % of CaO, 21.86 % of MgO, and 47.73 % of CO2.

  • Get Price
  • CO2 capture by a novel CaO/MgO sorbent fabricated

    Herein, the novel CaO/MgO CO 2 sorbent was fabricated from carbide slag and dolomite by the combustion method during the calcium looping process. The carbide slag is a precursor of CaO, and dolomite is a precursor of both MgO and CaO. The effects of the mass ratio of the carbide slag to dolomite, calcination conditions and presence of steam during carbonation on the CO 2 capture

  • Get Price
  • ENERGY OPTIMISATION OF VERTICAL SHAFT KILN

    2018-10-10  dolomite as raw material is the process of dolomite calcination. The technology process usually takes place in shaft or rotary kilns, where the dolomite stone, CaMg(CO 3) 2, is subjected to a high temperature heat treatment. The calcination of the dolomite is highly endothermic reaction, requiring significant amount of thermal energy to produce ...

  • Get Price