Steaming and frying technique of castor oil

Abstract

The invention belongs to the technical field of grease and chemical industry, and in particular relates to a cooking process for castor oil. The technical proposal of the cooking process is that the cooking process for the castor oil comprises the steps of: (1) moistening, in which clear water which accounts for 8 to 12 percent of weight of a blank is added into the castor blank; and (2) steamingand stir-frying, in which after the blank is moistened, heat conduction oil with a temperature of between 210 and 250 DEG C is taken as a heat exchange medium in a steaming and stir-frying cauldron, the blank is heated, steamed and stir-fried, the steaming and stir-frying temperature is between 110 and 120 DEG C, the steaming and stir-frying time is between 40 and 60 minutes, the discharge temperature is between 115 and 135 DEG C or so, and the discharge water content is between 6 and 8 percent. The steaming and stir-frying degree of the blank produced by a high-temperature high-water cookingtechnology is consistent inside and outside the blank, no half-cooked phenomenon exists, the moisture of materials is easy to adjust, a pre-pressed cake pressed by the blank has strong plasticity andno whitening, the leaching working procedure has good permeability, and final meal residual oil is remarkably reduced to less than 1 percent.

Description

Steaming and frying process of castor oil technical field The invention belongs to the technical fields of oil and chemical industry, and in particular relates to a steaming and frying process of castor oil. Background technique Castor oil is a non-drying oil containing hydroxy acids. The content of ricinoleic acid accounts for about 87.1%-90.4% of the fatty acid composition. Castor oil can be used as a medical laxative, textile, chemical and light industry and other departments to use castor oil as a dyeing aid Agents, lubricants, plasticizers, emulsifiers and raw materials for the manufacture of coatings, paints, soaps and inks. It is widely used in industries such as aviation, precision instruments, medicine, coatings, plasticizers, emulsifiers, insulating oil, textiles, and leather. It occupies an important position in the national economy, and its industrial prospects are very broad. There are two main types of existing castor oil processing technologies: mechanical...

AI Technical Summary

Problems solved by technology

Due to the low temperature of this process, which is only 95-110°C, the raw embryos are not easy to be steamed and fried, and the phenomenon of externally cooked and endogenously occurs easily. The incompletely destroyed raw material makes the subsequent leaching process difficult to operate, resulting in high residual oil in the final castor meal, which increases the production cost of castor oil