Calcium Carbide

Calcium carbide is one of the basic raw materials in the organic synthetic chemical industry. It is an important raw material for acetylene chemical industry,widely used in metal welding and cutting. eets with water, it reacts violently immediately, generating acetylene and releasing heat, and its content varies with the melting point. It is an important basic chemical raw material, mainly used to produce acetylene gas.

Composition: Premium materials such as high alumina oxide, magnesium oxide, and silicon carbide, with customizable composition based on client requirements.

Form: Available in powder, brick, board, and castable forms to suit various application needs.

Refractoriness: Standard range from 1200°C to 1800°C, with options for higher temperature customization.

Application Fields: Widely used in industries such as steel, cement, glass, and petrochemicals for furnace lining and insulation.

Packaging: Options include 25 kg bags, bulk bags, and custom packaging solutions compliant with global transportation standards.

Message

Introduction

Welcome to China Loong Refractory Co., Ltd.! We are dedicated to providing high-quality refractory materials suitable for various demanding high-temperature industrial environments. As a professional manufacturer of refractory products, we not only offer standard specifications but also provide OEM customization services tailored to meet specific customer requirements. Whether it's high alumina bricks, silicon carbide bricks, castables, refractory fiber boards, or special refractory materials for high-temperature kilns, we offer a wide range of options.

Our experienced R&D team can customize the material, form, and size according to your specific application needs while ensuring compliance with international quality standards. With rigorous quality control and advanced production facilities, we guarantee products with high refractoriness, excellent compressive strength, and long-lasting durability. Whether you are in the steel, cement, glass, or petrochemical industry, we are your trusted partner, supporting the success of your projects.

For customization inquiries, please feel free to contact us. We will provide tailor-made solutions based on your requirements.

Calcium Carbide Details

Calcium carbide should be stored in a cool, dry and well-ventilated warehouse. Keep away from fire and heat sources. The relative humidity is kept below 75%. The packaging must be sealed and protected from moisture. It should be stored separately from acids and alcohols, and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.

Production methods are aerobic heating method and electric heating method. Generally, electrothermal method is used for production, that is, quicklime and carbon-containing raw materials (coke, anthracite or petroleum coke) are generated in the calcium carbide furnace by the high-temperature melting reaction of the electric arc.

The main production process is: raw material processing; batching; adding the mixture into the electric furnace through the entrance or pipeline at the upper end of the electric furnace, and heat it to about 2000 ℃ in an open or closed electric furnace, and generate by the following reaction: GaO+3C→CaC2+CO . After its melting is taken out from the bottom of the furnace, it is cooled and crushed as a finished product package. The carbon monoxide produced in the reaction is discharged in different ways depending on the type of calcium carbide furnace: in an open furnace, carbon monoxide is burned on the material surface, and the flame generated is scattered outwards along with the dust; in a semi-closed furnace, part of the carbon monoxide is placed The suction hood on the furnace is extracted, and the remaining part is still burning on the material surface; in a closed furnace, all the carbon monoxide is extracted.

Application

1. Acetylene generated by reaction with water can synthesize many organic compounds, such as synthetic rubber, synthetic resin, acetone, ketene, carbon black, etc.; at the same time, acetylene-oxygen flame is widely used for welding and cutting of metals.

2. When it is heated with nitrogen, it reacts to form calcium cyanamide, that is, lime nitrogen. The cyanide melt produced by the reaction of lime nitrogen with table salt is used for gold mining and non-ferrous metal industry.

3. It can be used as a desulfurizer in the steel industry.

Physical And Chemical Indicators

ITEM			INDEX
ITEM			Special Grade	A grade	Accept Grade
Gas yield 20°C 101.3kPa L/kg≥	Size mm	80-200	300	280	255
		50-80	300	280	255
		25-50	300	280	250
		4-25	300	280	250
PH3 %(v/v)≤			0.06	0.08	0.08
H2S%(v/v)≤			0.10	0.10	0.10