Calcium carbide
Swimming pool water treatment chemicals


What's the handling and storage methods of calcium carbide?

Precautions for Safe Handling:Avoid ingestion and inhalation of vapour dust. Avoid contact with eyes, skin, clothing and other combustible materials. Avoid prolonged or repeated exposure. Application of skin-protective barrier cream recommended. If ingested seek medical advice immediately and when possible show the container or label. Minimise dust generation and accumulation. Use adequate ventilation in workplace. Keep material away from sources of heat and ignition – no smoking. Keep container dry. Wash thoroughly after handling. Remove and wash contaminated clothing before reuse. Discard contaminated shoes. Inform laundry personnel of contaminants hazards.Precautions for Safe Storage:Keep container tightly closed when not in use, in a cool, dry, well-ventilated area away from incompatible materials. Keep the container sealed to prevent light and moisture contact. Store at room temperature (15-25°C). Store away from wooden, cardboard and paper surfaces/materials.

What is the production process of calcium carbide lump?

The production process of calcium carbide lump:Calcium Carbide (CaC2), commonly known as calcium carbide, is one of the basic materials of organic synthetic chemical industry. It is an important raw material for acetylene chemical industry. Acetylene made from calcium carbide is widely used in metal welding and cutting.Production methods are aerobic heating method and electrothermal method.Calcium carbide is usually produced by electrothermal method, that is, quicklime and carbon-containing raw materials (coke, anthracite or petroleum coke) are produced in the furnace by arc melting reaction at high temperature.The main production processes are: raw material processing; proportioning; adding the mixture into the electric furnace through the entrance or pipeline of the upper end of the furnace, heating it in an open or closed electric furnace to about 2000 C, and forming calcium carbide according to the following reaction: GaO+3C_CaC2+CO. The melted calcium carbide is taken out from the bottom of the furnace and packed as finished product after cooling and crushing. Carbon monoxide produced in the reaction is discharged in different ways according to the type of calcium carbide furnace: in the open furnace, carbon monoxide burns on the material surface, and the resulting flame spreads outward along with dust; in the semi-closed furnace, part of carbon monoxide is extracted by the suction hood placed on the furnace, and the remaining part is still burning on the material surface; In an airtight furnace, all carbon monoxide is extracted.(1) Calcium carbide production processAfter crushing and screening, the burned lime is sent to the lime warehouse for storage. The lime and coke which meet the demand of calcium carbide production are proportioned according to the prescribed proportion. The burden is sent to the top hopper of the electric furnace by a bucket elevator. The charge is fed into the electric furnace through the charge pipe. The charge is heated through the electric arc pad of the electrode and the resistance of the charge to form calcium carbide in the electric furnace. Calcium carbide is discharged regularly and put into the pot of calcium carbide. After cooling, it is crushed into a certain size specification, and the finished calcium carbide is obtained. In a calcium carbide furnace, the heat generated by arc and resistance heats the burden to 1900-2200 C. The total chemical reaction formula is: CaO+3C=CaC2+CO+10800 kcal.(2) Production process of calcium carbide furnace1. Ingredients, Feeding and Top DistributionQualified raw materials are metered and proportioned in the raw material processing workshop, then fed into the hopper of the electric furnace workshop by the bucket elevator, and fed into the annular hopper on the top of the furnace by the top distribution facilities, fixed belt conveyor and annular distributor. The burden distribution facilities on the top of the furnace distribute the burden into the bin as needed, and the charging pipe of the electric furnace is added into the furnace in batches.2. Electric FurnaceSemi-enclosed calcium carbide furnace is composed of furnace body, furnace cover, electrode holder, electrode discharge and electrode lifting device, and is the main equipment for producing calcium carbide. The electric furnace is powered by transformer. The charge reacts at high temperature in the furnace to produce calcium carbide, and releases carbon monoxide gas. The generated calcium carbide is discharged from the outlet of the furnace. The furnace is opened by a burner, and the molten calcium carbide flows into the calcium carbide pot of the cooling car.The pressure release of the electrode is controlled by oil pressure. A single-layer oil cylinder is used to hold the conical ring cylinder of the lifting electrode to press the conductive jaw plate. The normal elevation of the electrode is controlled by three Hoists on the fourth floor. The elevation, pressure release, holding and cutting control of the electrode are all controlled by buttons in the second floor operating room. The electric furnace is powered by a transformer. The charge reacts at high temperature in the furnace to produce calcium carbide and emits carbon monoxide gas. The resulting calcium carbide is discharged from the outlet of the furnace. The outlet is opened by a burner, and the molten calcium carbide flows into the calcium carbide pot of the cooling car.The outlet furnace is equipped with a shield and an arc drilling rack, and a smoke exhaust hood is arranged above the outlet. The smoke generated during the extraction of the furnace is extracted by a fan.3. Cooling, Crushing and Packaging of Electric FurnaceThe molten calcium carbide is cooled in the carbide pot by a crane to corridor or packing room. After the carbide ballast solidifies, the carbide ballast is lifted out by a bridge crane and a single clamp and cooled on the cast iron floor. After cooling to a moderate degree, the carbide is crushed to a qualified size, and then packaged by grading poles and sent to the finished product warehouse.

We was in Canton Fair at 15-19,Apr in 2019

We was in Canton Fair from 15-19,Apr in 2019Main products:Calcium Carbide,Acetylene Gas Cylinders,Seamless steel Cylinders,Mango Ripener,Swimming pool water treatment chemicals,calcium hypochlorite,SDIC,TCCA,etc.Website:www.ngochem.comWechat/WhatsApp:0086 13682119955E-mail:jennifer@ngochem.com

What's other chemicals did you you supply except for calcium carbide?

What's other chemicals did you you supply except for calcium carbide? NGO Chemical Group Ltd was professional manufacturer of calcium carbide, With Great Efforts,we can supply below chemicals also.(1)ACETYLENE GAS CYLINDERS(2)SEAMLESS STEEL CYLINDERS(3)MANGO/BANANA RIPENER(4)CAUSTIC SODA/SODA ASH(5)SWIMMING POOL WATER TREATMENT CHEMICALS(6)CALCIUM HYPOCHLORITE(7)SDIC 60%(8)TCCA 90%Other details,pls visit us at www.ngochem.com

What's the main package for calcium carbide?

What's your main package of calcium carbide? Our main package of calcium carbide are 50kg New steel drums and 100kg New steel drums,on pallets or without pallets

What's offical Certificate of your NGO chemical Group Ltd?

CERTIFICATION OF QUALITY MANAGEMENT SYSTEM NGO CHEMICAL GROUP LTD.CALCIUM CARBIDECOMPLIES WITH THE REQUIREMENTS OF GB/T19001-2016/ISO 9001:2015The Scope of certification business covers:The Repacking of Calcium carbide and After-sales Service

How to Guarantee the quality of calcium carbide for each shipment?

QUALITY GUARANTEE OF CALCIUM CARBIDE 1.We will take samples from each lots of calcium carbide lump before carbide process,and make record,to ensure products with excellent gas yield.2.We often do air pressure testing to drums,ensures carbide drums seals tight and safety.and we fill in nitrogen in each drums also.3.Different sizes stored separately,to avoid size mixing.4.We will take samples test again before loading,ensure loaded goods with correct weight,sizes,gas yield and quantity.5.Our calcium carbide production is bases on Chinese National Standard:GB10665-2004 

What's the applications of calcium carbide

What's the applications of calcium carbide? (1) The main raw material for proudcing acetylene gas(2)Cutting and welding for metal materials(3)To synthesize polyvinyl chloride(PVC)(4)Fruit Catalyst(5)As desulphurization agent in steel plants


TESTING REPORT OF SETTING RATE FOR CALCIUM CARBIDE Sample size:25-50mm Testing process: (1)Take the calcium carbide sample,size:25-50mm,crushed to size 3-5mm(2)Put 137gram of them into 1000ml measuring cylinder,and put the water to 600ml slowly(3)Continue to put water to 1000ml and uniform mixing after reaction completely,and then static,wait for the result.it will take 4 hours for whole process. The result are as follows:(1) Drop to 405ml after 20 min(2) Drop to 360ml after 1 hour(3) Drop to 358ml after 2 hours(4) Drop to 358ml after 3 hours(5) Drop to 355ml after 4 hours

What's your calcium carbide production process?

Introduce our NGO company and NGOCHEM Brand

NGO Chemical Group Ltd,built in 2012,Our crushing plant was located in Tianjin Xiqing dist,We moved to Wulanchabu,Inner Mongolia since Tianjin port explosion since 2015.Now Let's me introduce our new plant,It was located in Fengzhen City, fluoride Industrial Park,covering an area of more than and 80 acres,We are the professional crushing plant of calcium carbide.We has more than 4 thousand flat carbide processing workshop, complete sets of processing equipment (crushing jaw crusher, PEX300*1300 PE500*750 two jaw type fine crushing machine two sets, two sets of SG1.4*14m inertial sieve) and experienced professional and technical workers 56, daily production capacity of 7000 tons / month or more.Moreove,we have good sellling for domestic steel plant as desulfurization agent,we supply them variety of small size,such as 0-2MM, 0.5-5MM, 2-4MM, 4-7MM...... Of course,We have more experience for export,we exported of  80-120MM, 50-80MM, 25-50MM, 15-25MM, 7MM-15MM.4-7MM,2-4MM,0-2MM,or customized.For more details about us,pls visit at www.ngochem.comBelow is some photos for production line.

What is the gas yield for your carbide?

The gas Yield of different sizes are as follows:0-2mm:220L/KG MIN2-4mm:240/KG MIN4-7mm:260L/KG MIN7-15mm:285L/KG MIN15-25mm:285L/KG MIN25-50mm:295L/KG-305L/KG MIN50-80mm:295L/KG-305L/KG MIN80-120mm:295L/KG-305L/KG MIN

When will delivery the goods?

We can delivery the goods around 15-20 days upon receipt your deposit or L/C copy.

What is your payment terms?

Usually,we can accept below payment:(1)30%deposit,70%against B/L copy within 5 working date(2)L/C at sight(3)Other payment terms of our products,we should discuss each other