CN106343515A - Method for producing natural high calcium salt by calcium type brine - Google Patents
Method for producing natural high calcium salt by calcium type brine Download PDFInfo
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- CN106343515A CN106343515A CN201610704455.0A CN201610704455A CN106343515A CN 106343515 A CN106343515 A CN 106343515A CN 201610704455 A CN201610704455 A CN 201610704455A CN 106343515 A CN106343515 A CN 106343515A
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Abstract
The invention belongs to the technical field of salt industry preparation, and particularly relates to a method for producing natural high calcium salt by calcium type brine. The method comprises the following steps that firstly, a certain amount of calcium type brine is purified; the purified calcium type brine is evaporated for salt preparation; salt pulp is obtained through salt preparation through evaporation; meanwhile, a certain quantity of calcium mother liquid can be obtained in the salt preparation process through evaporation; a part of calcium mother liquid is subjected to purification treatment; the calcium mother liquid subjected to the purification treatment is mixed with purification calcium type brine; then, rich-calcium cleaning liquid is used for elutriating the salt produced in the salt preparation through evaporation; the salt obtained after the elutriation is used for performing dewatering treatment on a product, i.e., the rich-calcium salt; wet salt is subjected to drying and packaging to finally obtain salt products. The calcium element contained in the calcium type brine per se is used for producing natural high-calcium salt; additional addition of agents is not needed; the requirements of relevant laws and regulations in industry in China can be met. The calcium is self carried calcium in the brine, so that the agent addition equipment is not needed in the production process; calcium cannot easily generate dust in the drying and packaging process, so that the production environment is improved.
Description
Technical field
The invention belongs to salt industry preparing technical field, specially a kind of method that natural high-calcium salt is produced with calcium type salt.
Background technology
Calcium is biological necessary element.For human body, no matter in muscle, nerve, body fluid and skeleton, all useful ca2+Knot
The protein closing.Calcium is the main inorganic composition of mankind's bone, tooth, is also that neurotransmission, muscle contraction, blood clotting, hormone are released
Put and the necessary elements such as galactopoiesiss.Calcium accounts for the 1.4% of body mass, participates in metabolism, must be supplemented with calcium daily；
In human body, calcium content is not enough or surplus all can affect growth promoter and health.
Sal, also known as dining table salt, is one of most important material to human survival, is also the most frequently used seasoning in culinary art
Material.The main chemical sodium chloride (chemical formula nacl) of salt content in Sal is 99%.
With social continuous progress, the requirement more and more higher to quality of the life for the people, the requirement to product salt is also more next
Higher, the market of therefore high calcium salt is also just increasing.But in the technical conditions and production process route of existing production,
Produce high calcium salt relatively difficult；If directly carrying out producing high calcium salt using calcium type salt, in process of production, salt making equipment meeting
Produce substantial amounts of scale formation, lead to production cannot be normally carried out；If carrying out producing high calcium salt in the form of additional calcium, raw
Produce cost can greatly improve, also do not meet salt manufacturing standard simultaneously.
Content of the invention
The present invention, according to above technical problem, provides a kind of method producing natural high-calcium salt with calcium type salt, the method
In the case that cost increases seldom, solve the problems, such as calcium type salt fouling in process of production, and reduce calcium type salt
Produce and outside salt-making process, arrange the pollution problem to environment for the mother solution.
The concrete technical scheme of the present invention is as follows:
A kind of method that natural high-calcium salt is produced with calcium type salt, the method comprises the following steps:
1) first a certain amount of calcium type salt is purified that (effect of purification mainly removes sulfide and suspension in salt
Thing), then the calcium having purified type salt is evaporated salt manufacturing, obtains salt slurry by evaporating salt manufacturing；Purification can adopt existing
Technology is processed.
2) mother liquor of calcium that will produce in evaporation salt-making process, point two parts are processed, and a part directly carries out filter pressing
Outer row, another part carries out purified treatment (purified treatment is mainly the mechanical admixture removing in mother liquor of calcium herein).This purification
Process can also be processed using prior art.
3) by step 2) in the mother liquor of calcium that completes of purified process and step 1) in purify after calcium type salt mix, mix
(rich calcium washing liquid is to compare with the calcium type salt not mixed during mother liquor of calcium, does not have the calcium before mixing to be rich calcium washing liquid afterwards
In type salt, seldom, only percent zero point is several for calcium content, and after passing through mixing, in mixed liquor, calcium content is up to 8%, so that
Yu Genggao, therefore the rich calcium washing liquid of calcium type liquid higher for this calcium content) in weight/mass percentage composition shared by calcium be called 9%-
14%, then using rich calcium washing liquid, produced salt in evaporation salt manufacturing will be eluriated, this elutriation does not have particular/special requirement, and existing
Elutriation method in production is the same.
4) after eluriating, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；The salt of gained after eluriating,
I.e. rich calcium salt slurry carries out processed and obtains wet salt, and wet salt drying is packed, final high calcium product salt.
Weight/mass percentage composition 9% shared by calcium in described rich calcium washing liquid.
Described wet salt moisture content, that is, in wet salt, the weight/mass percentage composition shared by water is 2%-3.5%, preferably 2.5%.
In terms of weight/mass percentage composition, calcium content >=0.24% in described high calcium product salt.
The positive effect of the present invention is embodied in:
(1), this production method produces the not outer adding medicine of high calcium salt, meets country and industry relevant laws and regulations, natural nothing
Pollution.
(2), take full advantage of the beneficiating ingredient in raw material, save production cost.
(3), because using rich calcium brine washing, the mode of residue of mother makes calcium residue in product salt, calcium in its product
The mode that uniformity is relatively added-mixed is substantially improved.
(4), in the present invention, calcium except adhering to salt grain surface, also penetrate in salt grain crystal, therefore relatively by part
In interpolation-hybrid technique, less in the loss of drying stage calcium, and operating environment is more preferably.
Brief description
Fig. 1 is the heretofore described process chart producing natural high-calcium salt with calcium type salt.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to specific embodiment pair
The present invention is described in further detail, but this scope being interpreted as the above-mentioned theme of the present invention should not be only limitted to following enforcements
Example.
% in following examples, if no special instructions, is represented as wt%.
Embodiment 1:
A kind of method that natural high-calcium salt is produced with calcium type salt, this production process is as follows:
First a certain amount of calcium type salt is purified, the calcium type salt having purified is evaporated salt manufacturing, made by evaporation
Salt obtains salt slurry；A certain amount of mother liquor of calcium can be produced in evaporation salt-making process, mother liquor of calcium is carried out in two steps place by this research simultaneously
Reason, a part directly carries out outside filter pressing row, and a part carries out purified treatment, the mother liquor of calcium that purified treatment completes with purify calcium type halogen
Water mixes, and is that in the rich calcium washing liquid after mixing, the weight/mass percentage composition shared by calcium is 9%, then utilizes rich calcium washing liquid to evaporation
In salt manufacturing, produced salt will be eluriated, and after elutriation, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；Wash in a pan
After washing, product is that rich calcium salt slurry carries out processed by the salt of gained, and in the wet salt being dehydrated gained, water content is 3.5%,
Wet salt drying is packed, final product salt, and the index with regard to product salt is as follows:
Table 1
| Numbering | Consumption (%) | Calcium (%) | Whiteness | Sodium chloride (%) |
| 1 | 9 | 0.246 | 88 | 97.2 |
Embodiment 2:
A kind of method that natural high-calcium salt is produced with calcium type salt, this production process is as follows:
First a certain amount of calcium type salt is purified, the calcium type salt having purified is evaporated salt manufacturing, made by evaporation
Salt obtains salt slurry；A certain amount of mother liquor of calcium can be produced in evaporation salt-making process, mother liquor of calcium is carried out in two steps place by this research simultaneously
Reason, a step directly carries out outside filter pressing row, and a part carries out purified treatment, the mother liquor of calcium that purified treatment completes with purify calcium type salt
Mixing, is that in the rich calcium washing liquid after mixing, the weight/mass percentage composition shared by calcium is 11%, then utilizes rich calcium washing liquid to evaporation
In salt manufacturing, produced salt slurry is eluriated, and after elutriation, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；Wash in a pan
After washing, product is that rich calcium salt slurry carries out processed by the salt of gained, and in the wet salt being dehydrated gained, water content is 2.5%,
Wet salt drying is packed, final product salt, and the index with regard to product salt is as follows:
Table 2
| Numbering | Consumption (%) | Calcium (%) | Whiteness | Sodium chloride (%) |
| 1 | 11 | 0.302 | 87 | 96.5 |
Embodiment 3:
A kind of method that natural high-calcium salt is produced with calcium type salt, this production process is as follows:
First a certain amount of calcium type salt is purified, the calcium type salt having purified is evaporated salt manufacturing, made by evaporation
Salt obtains salt slurry；A certain amount of mother liquor of calcium can be produced in evaporation salt-making process, mother liquor of calcium is carried out in two steps place by this research simultaneously
Reason, a step directly carries out outside filter pressing row, and a part carries out purified treatment, the mother liquor of calcium that purified treatment completes with purify calcium type salt
Mixing, is that in the rich calcium washing liquid after mixing, calcium content is 14%, then using rich calcium washing liquid to produced in evaporation salt manufacturing
Salt slurry is eluriated, and after elutriation, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；The salt of gained after elutriation
Product is that rich calcium salt slurry carries out processed, in the wet salt being dehydrated gained, water content is 2%, wet salt drying bag
Dress, final product salt, the index with regard to product salt is as follows:
Table 3
| Numbering | Consumption (%) | Calcium (%) | Whiteness | Sodium chloride (%) |
| 1 | 14 | 0.452 | 87 | 96.8 |
Comparative example 1:
First a certain amount of calcium type salt is purified, the calcium type salt having purified is evaporated salt manufacturing, made by evaporation
Salt obtains salt slurry；A certain amount of mother liquor of calcium can be produced in evaporation salt-making process, mother liquor of calcium is carried out in two steps place by this research simultaneously
Reason, a step directly carries out outside filter pressing row, and a part carries out purified treatment, the mother liquor of calcium that purified treatment completes with purify calcium type salt
Mixing, is that in the rich calcium washing liquid after mixing, calcium content is 8%, then using rich calcium washing liquid to produced salt in evaporation salt manufacturing
Slurry is eluriated, and after elutriation, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；After elutriation, the salt of gained will
Product is that rich calcium salt slurry carries out processed, and in the wet salt being dehydrated gained, water content is 3%, wet salt drying bag
Dress, final product salt, the index with regard to product salt is as follows:
Table 4
| Numbering | Consumption (%) | Calcium (%) | Whiteness | Sodium chloride (%) |
| 1 | 8 | 0.186 | 87 | 97.0 |
By above comparative example 4, when in rich calcium washing liquid, the content of calcium does not reach the present invention applicable and requires, even if
In wet salt, water content is 3%, reaches requirement, in the product salt being drawn, calcium content does not reach the requirement of natural high-calcium salt yet, no
Natural high-calcium product salt can be referred to as.
Comparative example 2:
First a certain amount of calcium type salt is purified, the calcium type salt having purified is evaporated salt manufacturing, made by evaporation
Salt obtains salt slurry；A certain amount of mother liquor of calcium can be produced in evaporation salt-making process, mother liquor of calcium is directly carried out filter pressing by this research simultaneously
Outer row；Then directly eluriated using purification calcium type salt, after elutriation, the elutriation mother solution of gained returns the evaporation salt manufacturing stage
Recycling；After elutriation, the salt slurry product of gained carries out processed, and in the wet salt being dehydrated gained, water content is 3%,
Wet salt drying is packed, final product salt, and the index with regard to product salt is as follows:
Table 5
| Numbering | Calcium (%) | Whiteness | Sodium chloride (%) |
| 1 | 0.05 | 88 | 97.5 |
By above comparative example 5, in producing high calcium product salt, if do not carried out using the production technology of the present invention
Produce, even if water content is 3% in wet salt, reach requirement, in the product salt being drawn, calcium content does not reach natural high-calcium salt yet
Requirement it is impossible to be referred to as natural high-calcium product salt.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (4)
1. a kind of method with calcium type salt production natural high-calcium salt is it is characterised in that the method comprises the following steps:
1) first a certain amount of calcium type salt is purified, removed the sulfide in salt and float, then will have been purified
Calcium type salt is evaporated salt manufacturing, obtains salt slurry by evaporating salt manufacturing；
2) mother liquor of calcium that will produce in evaporation salt-making process, point two parts are processed, and a part directly carries out row outside filter pressing,
Another part carries out purified treatment, and this purified treatment removes the mechanical admixture in mother liquor of calcium；
3) by step 2) in the mother liquor of calcium that completes of purified process with purify in step 1) after calcium type salt mix, after mixing
Obtain rich calcium washing liquid, then using rich calcium washing liquid, produced salt in evaporation salt manufacturing will be eluriated；
4) after eluriating, the elutriation mother solution of gained returns the recycling of evaporation salt manufacturing stage；After eluriating, the salt of gained, that is, rich
Calcium salt slurry carries out processed and obtains wet salt, and wet salt drying is packed, final high calcium product salt.
2. according to claim 1 with calcium type salt produce natural high-calcium salt method it is characterised in that: described richness calcium wash
Weight/mass percentage composition shared by calcium in liquid is 9%-14%.
3. according to claim 1 with calcium type salt produce natural high-calcium salt method it is characterised in that: described wet salt contains
Water rate, that is, in wet salt, the weight/mass percentage composition shared by water is 2%-3.5%.
4. according to claim 1 with calcium type salt produce natural high-calcium salt method it is characterised in that: with percent mass
Content meter, calcium content >=0.24% in described high calcium product salt.
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| CN201610704455.0A CN106343515A (en) | 2016-08-22 | 2016-08-22 | Method for producing natural high calcium salt by calcium type brine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892067A (en) * | 2020-08-14 | 2020-11-06 | 云南省盐业有限公司 | Preparation method and application of large-particle high-calcium salt in brine preparation |
| CN112939026A (en) * | 2021-04-06 | 2021-06-11 | 江苏苏盐井神股份有限公司 | Method for preparing natural calcium magnesium salt from calcium-containing brine |
| CN113951492A (en) * | 2021-11-19 | 2022-01-21 | 中盐工程技术研究院有限公司 | Natural solarized high calcium salt and preparation method thereof |
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| CN1093543A (en) * | 1993-04-11 | 1994-10-19 | 浙江省舟山盐业科学研究所 | Calcium-enriched salt and preparation method thereof |
| CN102390845A (en) * | 2011-08-09 | 2012-03-28 | 中盐皓龙盐化有限责任公司 | Method for producing salt special for sodium metal by using elutriation method |
| CN102503619A (en) * | 2011-09-02 | 2012-06-20 | 天津科技大学 | Method for preparing compound fertilizer from salt manufacturing mother liquor |
| CN102502711A (en) * | 2011-10-20 | 2012-06-20 | 中盐金坛盐化有限责任公司 | Preparation process and special device for salt with green food label |
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2016
- 2016-08-22 CN CN201610704455.0A patent/CN106343515A/en active Pending
Patent Citations (5)
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| CN1093543A (en) * | 1993-04-11 | 1994-10-19 | 浙江省舟山盐业科学研究所 | Calcium-enriched salt and preparation method thereof |
| CN102390845A (en) * | 2011-08-09 | 2012-03-28 | 中盐皓龙盐化有限责任公司 | Method for producing salt special for sodium metal by using elutriation method |
| CN102503619A (en) * | 2011-09-02 | 2012-06-20 | 天津科技大学 | Method for preparing compound fertilizer from salt manufacturing mother liquor |
| CN102502711A (en) * | 2011-10-20 | 2012-06-20 | 中盐金坛盐化有限责任公司 | Preparation process and special device for salt with green food label |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892067A (en) * | 2020-08-14 | 2020-11-06 | 云南省盐业有限公司 | Preparation method and application of large-particle high-calcium salt in brine preparation |
| CN112939026A (en) * | 2021-04-06 | 2021-06-11 | 江苏苏盐井神股份有限公司 | Method for preparing natural calcium magnesium salt from calcium-containing brine |
| CN113951492A (en) * | 2021-11-19 | 2022-01-21 | 中盐工程技术研究院有限公司 | Natural solarized high calcium salt and preparation method thereof |
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Effective date of registration: 20190328 Address after: 643000 Service Center Complex Building No. 15 Jinchuan Road, Yantan District, Zigong City, Sichuan Province, 4-2 Applicant after: Sichuan salt Salt Industry Technology Research Co Ltd Applicant after: Peng Chuanfeng Applicant after: Li Bo Applicant after: Fu Yuhang Applicant after: Liu Changhui Address before: Room 4-2 425, Service Center Complex Building No. 15 Jinchuan Road, Yantan District, Zigong City, Sichuan Province, 643000 Applicant before: Zigong Light Industry Design and Research Co., Ltd. |
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Application publication date: 20170125 |
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