CN1145910A - Concurrent - Google Patents
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- CN1145910A CN1145910A CN 95112137 CN95112137A CN1145910A CN 1145910 A CN1145910 A CN 1145910A CN 95112137 CN95112137 CN 95112137 CN 95112137 A CN95112137 A CN 95112137A CN 1145910 A CN1145910 A CN 1145910A
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- corn
- steep liquor
- corn steep
- steeping water
- acid
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Abstract
The prodn process includes five steps of neutralization, filteration, stoving, acid regulation and concentration. After the corn soaking water is extracted to obtain corn extract, the filtrate is acid regulated to pH value of 3.8-3.9 and concentrated to obtain corn pulp. The said process results in high economic effect and less environment pollution.
Description
The invention belongs to starch industry tankage comprehensive utilization technique field, specifically relate to utilize corn steeping water to produce Fei Ting and corn steep liquor production technique.
During W-Gum is produced, produce a large amount of corn steeping water (rare corn steep liquor), wherein contain the calcium magnesium salts of soluble proteins and degradation product thereof, soluble saccharide, phytic acid etc., very high utility value is arranged, for developing these materials and reducing environmental pollution, present starch factory normally is used to extract luxuriant and rich with fragrance spit of fland or directly is condensed into corn steep liquor; In " production of starch and glucose (chapter 9 comprehensive utilization) " that Jiangxi science tech publishing house published in 1986, provide the production method of utilizing aquatic product corn steep liquor of corn steeping or luxuriant and rich with fragrance spit of fland; " the starch industry tankage product development technology " that 1991 the 1st periodicals of " starch and Dian Fentang " magazine are stepped on provides a kind of method of utilizing the luxuriant and rich with fragrance spit of fland system inositol of corn steeping water extraction, handle corn steeping water with these methods, make that benefit materials has obtained recycling in the corn steeping water, but also exist obvious deficiency: the one, only be used to extract luxuriant and rich with fragrance spit of fland merely or produce corn steep liquor, steep water can not get abundant development and use, both wasted seriously, easily caused environmental pollution again; The 2nd, owing to contain a large amount of phytins in the steep water, in the production process of corn steep liquor, easily form hard incrustation in the vaporizer, inefficiency is wasted time and energy in often scale removal, phytin not only is not used, economic benefit is low, but also owing to the calcium-magnesium content height, has reduced the quality of corn steep liquor.
The purpose of this invention is to provide the production technique that a kind of technology is simple, can extract luxuriant and rich with fragrance spit of fland and corn steep liquor simultaneously from corn steeping water, corn steeping water can be fully effectively used, and reduce environmental pollution.
The object of the present invention is achieved like this: corn steeping water neutralizes with saturated milk of lime, after leaving standstill, filtering separation, will leach thing dry slightly luxuriant and rich with fragrance spit of fland, filtrate collection, to 3.7-4.0, vacuum concentration obtains corn steep liquor with acid readjustment pH value.
During acid readjustment PH, be the hydrochloric acid of 30%-36% with concentration, pH value is adjusted to 3.8-3.9, and the vacuum tightness of vacuum concentration is 0.4-0.6MPa, and temperature is controlled at 60-70 ℃.
The present invention is before producing corn steep liquor, extracted Fei Ting earlier, adopted simple process, not only made phytin in the steep water (account in the steep water dry-matter about 7%) obtain utilization, improved economic benefit, and after phytin is extracted, less scaling in the vaporizer, reduced the scale removal number of times during corn steep liquor is produced, improved the quality of working efficiency and corn steep liquor, corn steeping water no longer includes discarded liquid after having extracted luxuriant and rich with fragrance spit of fland and corn steep liquor, reduced environmental pollution.
Accompanying drawing is a process flow diagram of the present invention.
The invention will be further described below in conjunction with drawings and Examples:
The present invention can be divided into neutralization, filtration, oven dry, acid readjustment and concentrate for five steps.
Embodiment 1:
1, neutralization: corn steeping water is crossed 60 mesh sieves and is placed neutralization tank, adds the fresh saturated milk of lime of 80 mesh sieves while stirring, constantly measures steep water PH, when PH is 6.4, stops to add milk of lime, continues to stir after 15-20 minute, leaves standstill 40-60 minute.
2, filter: neutralizer filters with BX-45 * 24 plate-and-frame filter press (using 747 filter clothes), gets moisture 60% thick luxuriant and rich with fragrance spit of fland.
3, oven dry: will thick luxuriant and rich with fragrance spit of fland under 75 degree temperature, dry finished product phenanthrene spit of fland.
4, acid readjustment: filtrate collection adds 30% hydrochloric acid while stirring in the readjustment pond, when treating that filtrate PH is 3.8-3.9, stop to add acid, and this step can be used the sulfuric acid of 30-40%.
5, concentrate: the filtrate after will adjusting back rises the continuous concentrating pan of symphysis with circulation and concentrates, and vacuum degree control is at 0.5MPa, and temperature is 65 degree, treats that corn steep liquor proportion (45 ℃) is 1.124-1.126g/cm
2The time, collect qualified corn steep liquor.
Embodiment 2:
1, neutralization: corn steeping water is crossed 60 mesh sieves and is put in the neutralization tank, adds the fresh saturated milk of lime of 80 mesh sieves while stirring, constantly measures PH, and water PH to be impregnated is 6.0 o'clock, stops to add milk of lime, continues to stir after 15-20 minute, leaves standstill 40-60 minute.
2, filter: the steep water after will neutralizing filters with plate-and-frame filter press, and (using 747 filter clothes) obtains moisture 60% thick luxuriant and rich with fragrance spit of fland.
3, oven dry: thick luxuriant and rich with fragrance spit of fland is dried under 75 ℃ of temperature, get the luxuriant and rich with fragrance spit of fland of finished product.
4, acid readjustment: with filtrate collection, in the readjustment pond, add 36% hydrochloric acid while stirring, when readjustment PH is 3.8-3.9, stop to add acid.
5, concentrate: concentrate with the circulating continuous concentrating pan of symphysis that rises, vacuum tightness is 0.4MPa, and temperature is controlled at 60 degree, treats that corn steep liquor proportion (45 ℃) is 1.124-1.126g/cm
2The time, begin to collect qualified corn steep liquor.
Claims (3)
1, a kind of production technique of utilizing corn steeping water to produce Fei Ting and corn steep liquor simultaneously, corn steeping water neutralizes with saturated milk of lime, after leaving standstill, filtering separation, to leach thing dry slightly luxuriant and rich with fragrance spit of fland, with filtrate collection, to 3.7-4.0, get corn steep liquor behind the vacuum concentration after it is characterized in that filtering with acid readjustment pH value.
2, the corn steeping water that utilizes according to claim 1 is produced Fei Ting and corn steep liquor production technique simultaneously, it is characterized in that adopting concentration in the acid readjustment technology is the hydrochloric acid of 30%-36%, and the readjustment pH value is 3.8-3.9.
3, the corn steeping water that utilizes according to claim 1 is produced Fei Ting and corn steep liquor production technique simultaneously, and the vacuum tightness that it is characterized in that vacuum concentration is 0.4-0.6MPa, and temperature is controlled at 60-70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95112137 CN1145910A (en) | 1995-09-18 | 1995-09-18 | Concurrent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95112137 CN1145910A (en) | 1995-09-18 | 1995-09-18 | Concurrent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1145910A true CN1145910A (en) | 1997-03-26 |
Family
ID=5079352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95112137 Pending CN1145910A (en) | 1995-09-18 | 1995-09-18 | Concurrent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1145910A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443658A (en) * | 2011-10-14 | 2012-05-09 | 广州双桥股份有限公司 | Preparation method of refined corn steep liquor and nitrogen-containing starch syrup for fermentation |
| CN110483240A (en) * | 2019-08-02 | 2019-11-22 | 潍坊盛泰药业有限公司 | A kind of soak water of maize method of comprehensive utilization |
-
1995
- 1995-09-18 CN CN 95112137 patent/CN1145910A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443658A (en) * | 2011-10-14 | 2012-05-09 | 广州双桥股份有限公司 | Preparation method of refined corn steep liquor and nitrogen-containing starch syrup for fermentation |
| CN110483240A (en) * | 2019-08-02 | 2019-11-22 | 潍坊盛泰药业有限公司 | A kind of soak water of maize method of comprehensive utilization |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |