CN1038799A - A kind of method of producing schoenite by solid state reaction - Google Patents

A kind of method of producing schoenite by solid state reaction Download PDF

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Publication number
CN1038799A
CN1038799A CN88101878A CN88101878A CN1038799A CN 1038799 A CN1038799 A CN 1038799A CN 88101878 A CN88101878 A CN 88101878A CN 88101878 A CN88101878 A CN 88101878A CN 1038799 A CN1038799 A CN 1038799A
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China
Prior art keywords
schoenite
solid state
state reaction
carnallitite
saltcake
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CN88101878A
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Chinese (zh)
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CN1010674B (en
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韩蔚田
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Individual
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Individual
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Priority to CN88101878A priority Critical patent/CN1010674B/en
Publication of CN1038799A publication Critical patent/CN1038799A/en
Publication of CN1010674B publication Critical patent/CN1010674B/en
Expired legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/12Preparation of double sulfates of magnesium with sodium or potassium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention belongs to the schoenite producing and manufacturing technique.Schoenite is a raw material of producing high-quality chlorideless potassic fertilizer vitriolate of tartar.The present invention after Repone K and saltcake are pressed the mixed in molar ratio of phasor, by solid state reaction, produces schoenite with carnallitite.Reaction equation is: 2Na 2SO 410H 2O+KClMgCL 26H 2O+KCl=K 2SO 4MgSO 46H 2O+4NaCl+20H 2O.The present invention simplifies production technique, and energy consumption is low, and cost is low, the efficient height.

Description

A kind of method of producing schoenite by solid state reaction
The invention belongs to the schoenite producing and manufacturing technique.
Schoenite is a raw material of producing high-quality chlorideless potassic fertilizer vitriolate of tartar.At present external produce vitriolate of tartar the operational path of industrialization comparative maturity have: one, be with Japan representative be the method for fusing, be about to Repone K and sulfuric acid according to a certain ratio, heating fuses.Data is seen CIM BULL, 1971, v64, No705, p66.Two, all adopt the solution conversion method with the Soviet Union, East Germany and West Germany, Repone K and sal epsom are changed into schoenite in solution, decompose schoenite then and produce vitriolate of tartar.Data is seen Kali und Steinsalz, 1970, Bd, S289.Three, U.S.'s Great Salt lake's mineral and chemical company obtain containing sodium-chlor with the evaporation of crude salt lake water, kainite, the mixture of epsom salt and carnallitite, factory evolve then by (1) flotation sodium-chlor, (2) sylvite is converted into schoenite, (3) add the water decomposition schoenite, crystallisation by cooling is produced vitriolate of tartar.Data is seen PHOSPH POTAS, 1971, and No52, p36 and PHOSPH POTAS, 1972, No56, p39.Domesticly just be the conversion method that carries out at solution in the method for laboratory study.Data is published in " section's journal " on March 4th, 1988 " salt lake, Qinghai institute releases the novel process of extracting vitriolate of tartar from the salt lake, Qinghai ".
Above method complex process, so the energy consumption height is the production cost height.
The objective of the invention is to: produce schoenite by solid state reaction, production technique is simplified, energy consumption is low, reduces cost, and raises the efficiency.
The present invention uses the phasor principle with carnallitite, after Repone K and saltcake (mirabilite hydrate or thenardite) are mixed in proportion, by solid state reaction, produces schoenite.According to the phasor principle, at K, Na, Mg/CL, SO 4-H 2On the Ye Naike phasor of O penton system (seeing accompanying drawing),, carnallitite (Car)+sylvite (Sy)+saltcake (M or T) is mixed, total composition of mixture is dropped on the solidus (Pi) of schoenite by shouldering bar and center-of-gravity rule.Mixture is by solid state reaction, and dehydration is transformed into new thing mutually to carnallitite with saltcake, i.e. schoenite+halite.Reaction equation is:
。At penton is in the phasor, and temperature range and phase region that schoenite exists are very big, and therefore under the natural condition of low temperature (as 0 ℃) and high temperature (as 40 ℃), the above-mentioned solid phase reaction can both very fast realization.
The present invention can realize like this, raw material is mixed in proportion stirring after, as doing coal briquette, make bead or little cake, and make its seasoning, after waiting to do bath, reaction is promptly finished.The mixture of the schoenite that obtains and sodium-chlor is carried out flotation just can obtain schoenite.(flotation has sophisticated processing method)
Characteristics of the present invention are: the reaction of producing schoenite is not to carry out in solution, therefore compared with prior art has following advantage:
1, do not need to deposit the salt pond or the container of bittern, thereby, facility investment can be saved greatly.
2, saved technological processs such as crystallization, solid-liquid separation, production technique is simple.
3, there is not tailing (solution method is analysed the mother liquor behind the schoenite) to handle problems in the production process.
4, in the reaction process, except that utilizing sun power, do not need other energy.
5, speed of response is fast, and is with short production cycle, the efficient height.
Accompanying drawing is: K, Na, Mg/CL, SO 4-H 2The Ye Naike phasor of O penton system
Solid phase becomes branch
The M saltcake
The T thenardite
The Car carnallitite
The Sy sylvite
The embodiment I: testing sequence and effect are carried out in test at room temperature (15-18 ℃):
1. take by weighing 200 gram carnallitites, 53.2 gram Repone K, 136 gram thenardites (powdery) and 154.3 gram mirabilite hydrates.
2. with above mixing of materials, grind, be pressed into the pellet of coal briquette size.
3. after 3-4 hour, pellet is wetting, but flowing liquid not.
4. dry naturally, product is through being accredited as the thin crystalline substance of schoenite+salt two days later, original phase (carnallitite, saltcake, sylvite) completely dissolve, and product weighs 457 grams.
[notes]: the weight ratio of schoenite and salt is 1.722: 1 in the product.
The embodiment II: test is carried out under 0-5 ℃ of condition: 1. take by weighing carnallitite 200 grams, Repone K 53.2 grams, ten moisture saltcake, 463 grams.
2. above mixing of materials is ground, become the cake shape less than 10 minutes materials, identify solid phase after 45 minutes, having seen has a large amount of salt (NaCl) and schoenite fine crystals to form.
3. material is dried naturally at indoor stand cake, dry two days later, product is the tiny salt of the bigger schoenite+crystal of crystal, saltcake, carnallitite and sylvite completely dissolve, and product weighs 460 grams.
The embodiment III: test at room temperature (16-18 ℃) is carried out:
1. take by weighing carnallitite 200 grams, Repone K 53.2 grams, thenardite (powder) 204.2 grams
2. above mixing of materials is ground and spray 150 ml waters, material can be bondd, and make pellet.
3. pellet is in indoor seasoning, and product is schoenite+salt two days later, and product weighs 459 grams.

Claims (3)

1, a kind ofly produces the method for schoenite, after it is characterized in that carnallitite, Repone K and saltcake (mirabilite hydrate or thenardite) be mixed in proportion,, produce schoenite by solid state reaction by solid state reaction.
2, such as claim 1 the request solid state reaction produce the method for schoenite, it is characterized in that at K Na, Mg/CL, SO 4-H 2On the Ye Naike phasor of O penton system (seeing accompanying drawing),, carnallitite (Car)+sylvite (Sy)+saltcake (M or T) is mixed, total composition of mixture is dropped on the solidus (Pi) of schoenite by shouldering bar and center-of-gravity rule.
3, such as claim 1 the request solid state reaction produce the method for schoenite, after it is characterized in that powder raw material is mixed in proportion, make bead or little cake, and make it do bath naturally.
CN88101878A 1988-04-12 1988-04-12 Method of preparation of soft potassium-magnesium alum by solid phase reaction Expired CN1010674B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN88101878A CN1010674B (en) 1988-04-12 1988-04-12 Method of preparation of soft potassium-magnesium alum by solid phase reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN88101878A CN1010674B (en) 1988-04-12 1988-04-12 Method of preparation of soft potassium-magnesium alum by solid phase reaction

Publications (2)

Publication Number Publication Date
CN1038799A true CN1038799A (en) 1990-01-17
CN1010674B CN1010674B (en) 1990-12-05

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CN88101878A Expired CN1010674B (en) 1988-04-12 1988-04-12 Method of preparation of soft potassium-magnesium alum by solid phase reaction

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065213C (en) * 1998-05-21 2001-05-02 中国科学院青海盐湖研究所 Process for preparing soft leonite
CN104261940A (en) * 2014-09-24 2015-01-07 中国科学院青海盐湖研究所 Method for preparing potassic-magnesian fertilizer
CN109354042A (en) * 2018-11-22 2019-02-19 青海蓝湖善成生物技术有限公司 The preparation method and picromerite feed of picromerite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065213C (en) * 1998-05-21 2001-05-02 中国科学院青海盐湖研究所 Process for preparing soft leonite
CN104261940A (en) * 2014-09-24 2015-01-07 中国科学院青海盐湖研究所 Method for preparing potassic-magnesian fertilizer
CN109354042A (en) * 2018-11-22 2019-02-19 青海蓝湖善成生物技术有限公司 The preparation method and picromerite feed of picromerite

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Publication number Publication date
CN1010674B (en) 1990-12-05

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