Desc：The pretreatment of pure cotton or polyester-cotton fabric is mainly to remove impurities on the cotton fiber, so that the fabric has good printing and dyeing processing performance. The conventional desizing, scouring and bleaching processes are set up for different impurities. Which of the commonly used additives in printing and dyeing, sodium hexametaphosphate or soda ash, has a better softening effect?

Desc：In the eyes of laymen, oil extraction is similar to water wells. In fact, oil extraction needs to go through a series of processes such as exploration, determining the position, number and depth of wells. In the drilling process, technical equipment (including drilling rigs, derricks) and a set of lifting system and drill rods, drilling tools and drill bits are also required. Drilling fluid is related to the environment, reservoir and petroleum quality. Oil extraction is not easy. How to use potassium formate to "extract" oil from deep wells?

Desc：One price per day refers to yellow phosphorus, and its price will usher in the third wave of surge in 2021. Affected by the epidemic and environmental protection, the price of yellow phosphorus has soared almost to cut the existing yellow phosphorus production capacity. At present, some enterprises in Guizhou, Yunnan, Sichuan and other places have shut down their furnaces, and the recovery time is uncertain. Many companies accept new orders for yellow phosphorus at 29,000 yuan/ton. Sodium hexametaphosphate is a basic raw material commonly used in downstream industries, food and other basic raw materials, and the supply is also greatly affected. At present, who has the sodium hexametaphosphate in stock?

Desc：Regarding the impact of modern drilling fluids on the environment, it is recommended that everyone must pay attention to these, these are directly related to the human living environment. The drilling fluid penetrates into the formation with potassium formate, and the flow resistance is large, which not only inhibits the hydration, dispersion and expansion of the clay, prevents the formation from shrinking, but also does not interfere with the electrical measurement. It has light corrosion and avoids pollution to the oil layer. How to distinguish genuine and fake drilling fluid potassium formate?

Desc：According to the different breeding environment, the improvement of sow reproductive ability and the speeding up of fat pigs in scientific large-scale breeding, various feed additives have contributed a lot to the rapid development of animal husbandry. Under the general trend of banning resistance and reducing the nutrient concentration of feed, various additives will still play an important role in maintaining the breeding level. The growth-promoting agent that potassium diformate feed additive can replace antibiotics is particularly important for realizing healthy and green breeding.

Desc：Although antibiotics have promoted the rapid development of aquaculture production since they were used in aquaculture, the long-term use of antibiotics will often lead to the production of drug-resistant strains in animals and lead to drug residues. Therefore, the use of antibiotic growth promoters is gradually restricted or even banned, and potassium diformate is the first feed additive approved by the European Union to replace antibiotic growth promoters.