Results 21 to 30 of about 37,028 (342)

Pd/MCM-41 catalyst for acetylene hydrogenation to ethylene [PDF]

Royal Society Open Science, 2019
This study aims to produce ethylene using the calcium carbide route, acetylene from calcium carbide and then selective hydrogenation of the high-concentration acetylene to ethylene.
Lihua Kang, Bozhen Cheng, Mingyuan Zhu   +2 more
doaj   +1 more source

Decay on Cyclic CO₂ Capture Performance of Calcium-Based Sorbents Derived from Wasted Precursors in Multicycles

Energies, 2022
In order to obtain the cheap waste calcium-based sorbent, three wasted CaCO3 precursors, namely carbide slag, chicken eggshells, and analytical reagent-grade calcium carbonate, were selected and prepared at 700 °C to form calcium-based sorbents for CO2 ...
Dehong Gong, Zhongxiao Zhang, Ting Zhao
doaj   +1 more source

THE DANGERS OF CALCIUM CARBIDE. [PDF]

The Lancet, 1903
n ...
openaire   +2 more sources

Use of 2,4-D in Mixture with Ethephon and Calcium Carbide in Pineapple Crop [PDF]

Planta Daninha, 2019
: The 2-Chloroethylphosphonic acid (ethephon) and calcium carbide are used to induce and synchronize the flowering of pineapple crop. Some farmers have used the 2,4-D herbicide in combination with these flowering inducers.
R. RAPOSO JR., G.A.M. PEREIRA, C.C. MATOS, L.H. BARCELLOS JR., D.F. PAULA, A.A. SILVA   +5 more
doaj   +1 more source

Lead and Cadmium Ions Mitigation in Soil using Calcium Carbide Waste-Carbonised Lophira Alata Sawdust Composite (CCW-CLAS) as Immobilizing Agent

Aceh International Journal of Science and Technology, 2022
Soil contamination with heavy metals is a global environmental matter of interest due to its thinkable dangers to humans, environmental health, and the ecosystem preceding shortfalls in agricultural produce and dangerous health outcomes as they penetrate
Okponmwense Moses*, Queen Omone Asekhame
doaj   +1 more source

Spent carbide waste retains toxicity long term after disposal in caves and mines

Acta Carsologica, 2012
We studied the environmental impact of wastes derived from calcium carbide, which is widely used for generating acetylene in industry and speleology. It was shown that spent carbide is toxic for biota and harmful to cave ecosystems and the surrounding ...
Andrew A. Semikolennykh, Anna A. Rahleeva, Tatjana B. Poputnikova   +2 more
doaj   +1 more source

The experience of using calcium carbide for the deoxidation of steel to replace aluminum in the conditions of OJSC «BSW – Management company of the holding «BMC»

Литьë и металлургия, 2020
The article deals with issues related to the use of calcium carbide in steelmaking, instead of secondary aluminum and other deoxidizing materials, in order to reduce the cost of deoxidizing steel and slag.It was assumed that reducing the content of ...
О. M. Grudnitsky
doaj   +1 more source

Sequelae of carbide-related thermo-chemical injury: A retrospective analysis

Indian Journal of Ophthalmology, 2023
Purpose: To describe the outcomes of eyes with calcium carbide (CaC2)-related thermo-chemical injury. Methods: This study included 28 eyes of 23 patients who presented with calcium carbide-related ocular burns.
Anchal Arora, Swapna S Shanbhag, Dilip K Mishra, Nikhila Malepati, Sujata Das, Smruti R Priyadarshini, Amrita Mohanty, Srikant K Sahu   +7 more
doaj   +1 more source

ESTIMATION OF SULPHIDES IN CALCIUM CARBIDE. [PDF]

Journal of the American Chemical Society, 1896
n ...
openaire   +1 more source

Removal of Residual Element Antimony from Molten Steel by CaC₂-Containing Refining Slag

Metals, 2023
Increasing the use of steel scrap and enhancing its recycling utilization are important strategies for fostering the low-carbon and environmental-friendly growth of the iron and steel industry in China.
Zihong Chen, Mengke Liu, Guojun Ma, Xiang Zhang, Tianyu Du, Zhengliang Xue   +5 more
doaj   +1 more source