FIELD: chemistry.
SUBSTANCE: invention relates to improved method of obtaining calcium stearate by interaction of stearic acid and calcium hydroxide with heating and intensive mixing, further filtration and drying of sediment. Interaction of stearic acid and calcium hydroxide is performed in water medium, with emulsion being heated to 58-65°C, being brought into state of stable emulsion, kept at said temperature for 20-40 minutes until solution pH is 8.0-9.0, with further thermal processing for aggregation of particles with constant stirring and increase of temperature to 70-85°C, and exposure for 10-15 minutes to solution pH 7.5-9.0; after which water is poured in and mixing and filtration are carried out.
EFFECT: method makes it possible to simplify technological process, reduce calcium hydroxide consumption.
1 tbl,1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING ZINC STEARATE | 2012 |
|
RU2516663C1 |
| METHOD FOR PRODUCTION OF CALCIUM-ZINC STABILIZER | 2017 |
|
RU2672262C1 |
| METHOD OF OBTAINING LEAD STEARATE | 2013 |
|
RU2533556C2 |
| METHOD OF OBTAINING DIBASIC LEAD STEARATE, POLYVINYL CHLORIDE STABILISER | 2012 |
|
RU2506253C1 |
| METHOD OF PRODUCING CALCIUM-ZINC STEARATE | 2019 |
|
RU2705719C1 |
| METHOD OF OBTAINING THE LEAD STEARATE DIBASIC - POLYVINYLCHLORIDE STABILIZER | 2016 |
|
RU2656477C1 |
| METHOD FOR ZINC DIMETHACRYLATE PREPARATION | 2016 |
|
RU2614766C1 |
| METHOD FOR PRODUCING AND PURIFYING MAGNESIUM STEARATE | 2022 |
|
RU2790488C1 |
| METHOD FOR PRODUCING CARBOXYLATES OF METALS OF VARIABLE VALENCE | 2016 |
|
RU2618858C1 |
| METHOD OF PRODUCING ZINC STEARATE | 2019 |
|
RU2703549C1 |
