Acids exist universally in our life. There are both numerous kinds of natural acid compounds with biological functions and massive synthesized acids which are used in many ways.
In industry
Acids are fundamental reagents in treating almost all processes in today's industry. In the chemical industry, acids react in neutralization reactions to produce salts. For example, nitric acid reacts with ammonia to produce ammonium nitrate, a fertilizer. Additionally, carboxylic acids can be esterified with alcohols, to produce esters. Acids are often used to remove rust and other corrosion from metals in a process known as pickling. They may be used as an electrolyte in a wet cell battery, such as sulfuric acid in a car battery.
In food
Many acids can be found in various kinds of food as additives, as they alter their taste and serve as preservatives. Phosphoric acid, for example, is a component of cola drinks. Acetic acid is used in day-to-day life as vinegar. Citric Acid is used as a preservative in sauces and pickles. Certain acids are used as drugs. Acetylsalicylic acid (Aspirin) is used as a pain killer and for bringing down fevers.
Acid catalysis
Acids are used as catalysts in industrial and organic chemistry; for example, sulfuric acid is used in very large quantities in the alkylation process to produce gasoline. Some acids, such as sulfuric, phosphoric, and hydrochloric acids, also effect dehydration and condensation reactions. In biochemistry, many enzymes employ acid catalysis.
Ethanedioic Acid,Anhydrous Oxalic Acid,Acetic Acid 98.5%,Acid Industry Grade HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com
According to Ma Chunji, chairman of China National Heavy Duty Truck Group Co., Ltd., the company produced more than 15,500 remanufactured engines in 2009. By the end of the "Twelfth Five-Year Plan," China National Heavy Duty Truck is expected to form an annual production capacity of 50,000 engines (sets).
China National Heavy-duty Truck Group Co., Ltd. is China's first enterprise to produce heavy-duty vehicles, and is currently the largest domestic heavy-duty vehicle production base, and is hailed as the cradle of domestic heavy-duty vehicles. In 2009, in the face of the adverse impact of the international financial crisis, China National Heavy Duty Truck Group continued to improve the core competitiveness of enterprises, and each economic index hit a record high. In the year, 125,000 heavy-duty vehicles were produced and sold, representing a year-on-year increase of 11.59%.
In terms of developing a recycling economy, CNHTC Group has the first domestic company that is engaged in the remanufacturing of auto parts and components - Jinan Fuqiang Power Co., Ltd. At present, more than 20 varieties of specialized engine remanufacturing capacity based on re-manufactured Steyr engines have been formed. In 2009, it produced more than 15,500 remanufactured engines. Compared with the recycling of used machines, it saved 5,250 tons of materials, saved 682 tons of standard coal, and reduced carbon dioxide emissions by 397 tons.
Fuqiang Company is a member of the North American Engine Remanufacturing Association, the National Development and Reform Commission and other departments, the first batch of circular economy demonstration pilot units and the national auto parts remanufacturing pilot unit. The so-called engine remanufacturing is the process of remanufacturing an engine that completely achieves new quality by recovering used engines from maintenance outlets, through specialized dismantling, testing and cleaning, and high-tech repair and upgrading.