Algae iodate and method for extracting algae iodate from algae

A technology of seaweed iodine and alginate, applied in chemical instruments and methods, food science, inorganic chemistry, etc., can solve the problems of high price and iodine loss, save cost and energy consumption, improve productivity, and simplify desalination steps Effect

Inactive Publication Date: 2010-07-14
刘树军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since their stability is affected by various environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: the preparation of seaweed iodine

[0035] Select light dry kelp, add 8 to 10 times the weight of kelp to soak in tap water, soak for 30 to 45 minutes, put the soaking water into a water storage tank, and put the soaking water into a centrifuge covered with nylon filter cloth and 120 mesh silk filter The coarse impurities are removed by centrifugation for primary filtration, and the filtrate enters a centrifuge pre-coated with diatomaceous earth filter aid for secondary filtration. Run the material, control the temperature of the evaporation chamber at 80 ° C ~ 90 ° C, with the decrease of the amount of evaporated liquid, often observe the crystallization of the concentrate at the discharge port of the evaporator, discharge salts and mannitol in time, and take samples of the filtrate for testing Iodine content (ppm number), calculate the amount of water that needs to be evaporated to control the evaporation amount when concentrated to iodine content 5%, an...

Embodiment 2

[0036] Embodiment 2: the preparation of seaweed iodine

[0037] Take kelp with a water content of <20%, wash and remove sand; place it in 9 times the water and soak it for 4 times, each soaking time is 15 minutes, and collect the soaking solution A; filter it once, filter out the suspended matter and sediment, collect and clarify Liquid B; Evaporate and concentrate the clarified liquid B. (The concentration temperature is 80°C to 120°C. Different crystals or precipitates can be precipitated with different concentration temperatures.) At the same time, the crystalline substances and precipitates are discharged; concentrated to iodine When the content reaches 0.5-4.5%, the concentrated solution is centrifuged to remove the sediment to obtain a supernatant; high-temperature sterilization is obtained to obtain seaweed iodine, which is cooled and packaged.

Embodiment 3

[0038] Embodiment 3: the preparation of seaweed iodine

[0039] Take kelp with a water content of <20%, wash and remove sand; place it in 14 times the water and soak it once, each soaking time is 45 minutes, and collect the soaking solution A; filter it 4 times, filter out the suspended matter and sediment, collect and clarify Liquid B; the clarified liquid B is evaporated and concentrated in three effects, and the crystalline substances and sediment substances are discharged at the same time; concentrated until the iodine content reaches 10%, the concentrated solution is centrifuged to remove the precipitate to obtain a supernatant; high-temperature sterilization to obtain seaweed iodine, Cool the pack.

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PUM

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Abstract

The invention discloses an algae iodate and a method for extracting the algae iodate from algae. The method mainly comprises the following steps: adding water to soak the kelp; filtering to remove floater and sediments; carrying out evaporation on the obtained product; discharging the crystallized matter; carrying out concentration and high-temperature sterilizing on the crystallized matter to obtain the algae iodate; and cooling and packaging the algae iodate. The invention also discloses algae iodate salt prepared by the algae iodate.

Description

technical field [0001] The invention relates to an iodine-containing product and an extraction method thereof, in particular to a seaweed iodine, an extraction method thereof and seaweed iodine salt prepared from the seaweed iodine. Background technique [0002] At present, the iodine agents used in the production of iodized salt at home and abroad are inorganic iodine agents-potassium iodide and potassium iodate, which are standard iodine sources clearly stipulated by the World Health Organization and the Chinese government. Because their stability is affected by various environmental factors, resulting in the loss of iodine, and the price is higher. For this reason, it is very necessary to propose a new natural iodine agent to replace the inorganic iodine agent for the iodization of edible salt. [0003] The raw material for domestic iodine production is still mainly seaweed, and the extraction method is oxidation-ion exchange method. Due to the limited production of seaw...

Claims

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Application Information

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IPC IPC(8): C01B7/16A23L1/337A23L1/28A23L1/237A23L17/60A23L27/40
Inventor 刘树军宋爱然张俊华
Owner 刘树军
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