A kind of concrete pump lubricating agent and its usage method and process
Concrete is a commonly used building material. During on-site construction, it is mainly poured by pumping technology. Before pumping concrete, the pump truck and pipes must be moistened and lubricate…
What to do if concrete segregates? Use this emergency treatment method
Polycarboxylate superplasticizer has been widely used in concrete production, but it is also accompanied by many problems. For example, the dosage is sensitive and can easily cause bleeding and harden…
A kind of raw material or pump lubricating agent production method for sky pump and ground pump and its preparation method and process
1. This technology belongs to the field of lubrication technology, specifically involving a pipe lubricant or pump lubricant for sky pumps and ground pumps and a preparation method thereof. Background…
Laboratory separation method of toluene, aniline, phenol and benzoic acid_Kain Industrial Additive
Methods for separating toluene, aniline, phenol and benzoic acid First pass the mixture into NaHCO3 solution to separate benzoic acid. Then pass the NaOH solution to separate the phenol. By adding hyd…
Laboratory method for reacting sodium with phenol_Kain Industrial Additives
Phenol is an important benzene intermediate, also known as carbolic acid. It is a white crystal with a low melting point (40.91℃). It turns red when placed in the air and exposed to light. It has a sm…
Preparation method of (R)-2-(9-(pyridin-2-yl)-6-dioxaspiro[4.5]decan-9-yl)acetonitrile_Kain Industrial Additive
Background and overview[1] (R)-2-(9-(pyridin-2-yl)-6-dioxaspiro[4.5]decan-9-yl)acetonitrile is a pharmaceutical intermediate that can be synthesized from but-3-ene -l-alcohol and cyclopentanone are us…
Preparation method of copper hydroxide_Kain Industrial Additive
Overview【1】 Copper hydroxide is an important industrial material that can be used in medicine, mordants, pigments, feed additives, pesticides, paper dyes and catalysts. In recent years, it has also be…
Preparation method of cyanopinnazone_Kain Industrial Additive
Background and overview[1] Cyanopinalone appears as white crystalline powder with a melting point of 66-72°C. Cyanopinalone is a ketone compound and an important intermediate for medicines and pestici…
Preparation method of 3-acetonitrilecyclobutylamine hydrochloride_Kain Industrial Additive
Background and overview[1] 3-Acetonitrilecyclobutylamine hydrochloride can be used as a pharmaceutical synthesis intermediate. Preparation[1-2] Method 1: 3-acetonitrilecyclobutylamine hydrochloride is…
Extraction and synthesis method of star anise extract (shikimic acid)_Kain Industrial Additive
Background and overview[1-2] Shikimic acid is a cyclic organic acid found in natural plants such as star anise and some gymnosperms. It is the main active ingredient in the traditional Chinese medicin…
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