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The main purpose of the calcium carbide
sourcehttp://www.tjtywh.com
time2013/01/11
1.Production of acetylene
Reaction principle: the CaC2 +2 H2O → Ca (OH) 2 + CH ≡ CH ↑
CaC2 can conduct electricity, the higher the purity, the more easily conductive.
2.for other purposes
(1) acetylene calcium carbide reacts with water to the synthesis of many organic compounds such as: synthetic rubber, artificial resins, acetone, ketene, carbon black, etc.; acetylene-oxygen flame is widely used in metal welding and cutting.
(2) heating the powdered calcium carbide with nitrogen, the reaction of calcium cyanamide, namely, lime nitrogen, heating lime nitrogen and salt the reaction of cyanide melts for gold mining and non-ferrous metal industry.
(3) calcium carbide desulfurization agent can be used in the steel industry.
(4) the production of polyvinyl chloride (PVC), calcium carbide production of PVC use of calcium carbide (calcium carbide CaC2), with water to generate acetylene (C2H2), acetylene and hydrogen chloride (HCl) synthesis system for vinyl chloride monomer (CH2CHCl) polymerization to vinyl chloride generated PVC - [CH CHCI] n-chemical reaction. On behalf of manufacturers: the Tianye Xinjiang, Xinjiang in Thailand, Qingdao Hai Jing, Yibin Tianyuan, etc..
3.health hazards
Damage the skin and cause skin itching, inflammation, and the "bird's eye"-like ulcers, melanoma. Skin burns manifested as long-term wound healing and chronic ulcer-type. Workers exposed to sweat less damage to enamel caries increased incidence.
Explosion hazard: This product is flammable wetlands.
4.hazardous characteristics
Dry and flammable, water or moisture can rapidly produce highly flammable acetylene gas in the air to reach a certain concentration can occur when an explosive disaster. Can react violently with acids.
5.industrial system of law
Industry generally electric furnace melting method with oxygen calorimetry, furnace melting furnace coke and calcium oxide (formula CaO) at about 2200 ℃ melting to generate the calcium carbide (formula CaC2). Oxygen calorimetry: namely: the blast furnace oxygen-rich oxygen thermal melting CaC2 (calcium carbide), limestone extracted carbon, high-temperature low-pressure gas furnace. A furnace three technology CaC2 production and comprehensive utilization of waste heat in the gasification process and soot, ash plus ingredients melt generated CaC2 and ferrosilicon (purification CaC2); "high-temperature low-pressure gas furnace, so that gas production (hair) born naturalized. Smelting a ton of 80% CaC2 168kg or so of pure carbon extracted from limestone to produce gas (CO at 55% -95%) 6000-2600 m3, can produce about 4.5 tons of methanol. Oxygen-rich not only improve the furnace temperature and improved gas of CO quality, particularly in one fell swoop dual-use oxygen, gas, coal energy utilization for coal chemical or cleaning power. This process the CaC2 of production and gas production of the consumption of energy-and pollution-free type.
6.Handling
Closed operation, full exhaust. The operator must go through specialized training, and strictly abide by the rules. The recommended operating personnel wearing self-absorption filter respirators, wearing chemical protective safety glasses, wearing chemical protective clothing, wear rubber gloves. Avoid generating dust. Avoid contact with acids, alcohols. Particular attention to avoid contact with water. Handle gently, to prevent damage to packaging and containers. With spill contingency processing equipment. The empty containers may be harmful residues.
Reaction principle: the CaC2 +2 H2O → Ca (OH) 2 + CH ≡ CH ↑
CaC2 can conduct electricity, the higher the purity, the more easily conductive.
2.for other purposes
(1) acetylene calcium carbide reacts with water to the synthesis of many organic compounds such as: synthetic rubber, artificial resins, acetone, ketene, carbon black, etc.; acetylene-oxygen flame is widely used in metal welding and cutting.
(2) heating the powdered calcium carbide with nitrogen, the reaction of calcium cyanamide, namely, lime nitrogen, heating lime nitrogen and salt the reaction of cyanide melts for gold mining and non-ferrous metal industry.
(3) calcium carbide desulfurization agent can be used in the steel industry.
(4) the production of polyvinyl chloride (PVC), calcium carbide production of PVC use of calcium carbide (calcium carbide CaC2), with water to generate acetylene (C2H2), acetylene and hydrogen chloride (HCl) synthesis system for vinyl chloride monomer (CH2CHCl) polymerization to vinyl chloride generated PVC - [CH CHCI] n-chemical reaction. On behalf of manufacturers: the Tianye Xinjiang, Xinjiang in Thailand, Qingdao Hai Jing, Yibin Tianyuan, etc..
3.health hazards
Damage the skin and cause skin itching, inflammation, and the "bird's eye"-like ulcers, melanoma. Skin burns manifested as long-term wound healing and chronic ulcer-type. Workers exposed to sweat less damage to enamel caries increased incidence.
Explosion hazard: This product is flammable wetlands.
4.hazardous characteristics
Dry and flammable, water or moisture can rapidly produce highly flammable acetylene gas in the air to reach a certain concentration can occur when an explosive disaster. Can react violently with acids.
5.industrial system of law
Industry generally electric furnace melting method with oxygen calorimetry, furnace melting furnace coke and calcium oxide (formula CaO) at about 2200 ℃ melting to generate the calcium carbide (formula CaC2). Oxygen calorimetry: namely: the blast furnace oxygen-rich oxygen thermal melting CaC2 (calcium carbide), limestone extracted carbon, high-temperature low-pressure gas furnace. A furnace three technology CaC2 production and comprehensive utilization of waste heat in the gasification process and soot, ash plus ingredients melt generated CaC2 and ferrosilicon (purification CaC2); "high-temperature low-pressure gas furnace, so that gas production (hair) born naturalized. Smelting a ton of 80% CaC2 168kg or so of pure carbon extracted from limestone to produce gas (CO at 55% -95%) 6000-2600 m3, can produce about 4.5 tons of methanol. Oxygen-rich not only improve the furnace temperature and improved gas of CO quality, particularly in one fell swoop dual-use oxygen, gas, coal energy utilization for coal chemical or cleaning power. This process the CaC2 of production and gas production of the consumption of energy-and pollution-free type.
6.Handling
Closed operation, full exhaust. The operator must go through specialized training, and strictly abide by the rules. The recommended operating personnel wearing self-absorption filter respirators, wearing chemical protective safety glasses, wearing chemical protective clothing, wear rubber gloves. Avoid generating dust. Avoid contact with acids, alcohols. Particular attention to avoid contact with water. Handle gently, to prevent damage to packaging and containers. With spill contingency processing equipment. The empty containers may be harmful residues.