Cradle to Consumer
Identity ID
e3355da0-e08a-41c7-b21c-b7cd6b52e6f2
Materials
Associated ID
8b234631-2594-43cf-8f06-b849da053991
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Isooctyl thioglycolate is mainly used as a main raw material for the synthesis of PVC heat stabilisers, and is also applied in fields such as plastics processing aids, fine chemicals, rubber modification and metal surface treatment. Isooctyl thioglycolate is modelled as a pure substance; when modelling this substance the user needs to add a solvent of their choice in the model; the dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, in which the preliminary treatment of wastewater in the auxiliary units and the waste gas treatment process are included within the dataset boundary, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include acid-base neutralisation, mercaptidation, acidolysis, neutralisation and absorption, extraction, esterification, water washing and vacuum distillation.
Activity Description
The production activities of this product include acid-base neutralization, sulfhydration, acidolysis, neutralization absorption, extraction, esterification, water washing, vacuum distillation and other processes.
Process Description
The chemical formula of isooctyl thioglycolate (TGB for short) is C10H20O2S, CAS number 25103-09-7. It is a colorless to light yellow transparent oily liquid under normal temperature and pressure, with a slight characteristic mercaptan smell, low volatility, freezing point of about -70°C, boiling point of about 260°C, and excellent low-temperature fluidity. It is insoluble in water, easily soluble in organic solvents such as ethanol, ether, toluene, mineral oil, esters, etc., and has excellent compatibility with polymer materials such as polyvinyl chloride (PVC), synthetic rubber, acrylic resin, etc. It has stable chemical properties, has the typical characteristics of esters and sulfhydryl groups, has good hydrolysis and aging resistance, and is not easy to decompose at room temperature. It is the core organotin heat stabilizer intermediate in PVC processing. In industry, it is mainly used in the synthesis of PVC heat stabilizers (as a key raw material to prepare efficient organic tin heat stabilizers such as methyl tin mercaptide and butyl tin mercaptide); it is also used in plastic processing aids, fine chemical synthesis, rubber modification, and can also be used to prepare electroplating brighteners, metal surface treatment agents, etc.
Time period
2021
2026
Geography
China,Sichuan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Using monochloroacetic acid, sodium hydrosulfide, hydrochloric acid and isooctyl alcohol as raw materials, with solid acid (mainly composed of silicon and sulfuric acid) as catalyst, sodium thioglycolate is obtained through thiolation reaction, and thioglycolic acid is obtained through acidification process. After extraction, the mixture undergoes esterification reaction to obtain an esterification liquid, which is then washed with water to yield crude isooctyl thioglycolate. The crude product is further purified via distillation to obtain the finished isooctyl thioglycolate. The main chemical reactions involved in the production process are thiolation, acidification, and esterification.