SU1766245A3 - Method of potassium nitrate preparation - Google Patents

Description

First, good: soirsto-nn d spoooo inc-ae zza zozbg.0; VIZ sp.-d-D / n and with ka. /, C npucyrcvpi-v / i mzgot-iO o uf- tasog: -: ../ 1. Ogdegyk / e sediment sul; -yyyy. / i .. ohpuhdenue reactionary raster

 Odetenke to oo / graze half- -:, -. :: n / 1st potash fertilizer B particular n. cal /;:. praying for night / pr- / change in sagsko: -. host

Ns-iyo its 5l from to. The opioid image nj techical: o / 1 and the achieved result is th-uh and -: esius peiusHne. described in the unaccepted application for the German patent Nh 3434590 А 1, including the difference between the gnya SINGYNUTZ and sulcate kalig- and calcium fate. t to .. stand by /;-let.- with the possibility of a ROUTE mutual /; mddeysgvirin ongenit with calcium nitrate, however, the basics of w ith and s, this is, /, with the question of complex and require high rub; energy.

Example 12 of the laid out I3 description of a non-accepted application of a patent. 3434593 A 1. About with about about, about in about and. t

service / m, ca1-estg, e cr-osso:

MNI H,; VCC; a S ../ :,. Ti.V / 5TOM SchOD: FROM

Bpovv1 j .. o .-::::::; 2 h m-rsaki: -01 wash-1 :: erat -,:; e 37. s. and to mehod.-loe at sg. Sivakg: reactionary raster

schini kssh. : zkog long-term BONN S reaction - requires unprofitable large volumes of atpaoat; ry. Besides . lehe ;.: d (1 tnp-telg -: -: o K -oiL .ie 35r-octions ;, e .ireosTvoa on call-in: gf.t. C Sda sya l-; -. :: - a -sol; ;; 5Г -.:- 5Сэ50.- doK - - gif-dg-u stz nos genesnb: ne: burn potassium with calcium.

On / cas; e; .о5ре з: -:; - -. r ea: cl OUY: - ns / proc n. pstsg.t OPr 1.: I flow out -; and / - from the experience of impurities -7 sloss / half-calycet; -. (D

higher crystallization temperatures, up to 318-K, but the difference when cooled to 55 K is still relatively large, which results in significant energy losses. First of all, however, the untested practical method has significant drawbacks, while precisely all the excess water introduced into the process, which is introduced with calcium nitrate, respectively, originating from the washing of calcium sulfate, is removed by concentration of the combined wash water and mother liquor from crystallization of potassium nitrate before returning to the so-called decomposition of syngenite, the level of water in potassium nitrate when introduced into the interaction of syngenite with calcium nitrate becomes unnecessarily elevated, without POSSIBILITY sufficient separation of transmitted with the basic salts of impurity substances. This has the effect, along with damage to the interaction, increasing with the number of cycles of potassium nitrate contamination.

This could have been avoided only through the use of high-purity basic substances (syngenite and calcium nitrate), the production of which meant unreasonable costs. For this reason. due to deficiencies in the cost-effective use of energy and due to the lack of evaluation by the response of the nosomal / p /: syngenite, the method of the laid out description of the invention to the unclassified ng application of the German Federal Patent No. 3434590 A 1 cannot be done in one stage.

The aim of the invention is to reduce energy consumption and reduce the chloride content in the product.

A method has been found for producing potassium nitrate by reacting a compound containing a ca-lium, for example, diigenate, with calcium nitrate in an aqueous medium, which is distinguished as follows.

Syngenite and heterogydrate or calcium nitrate solution are introduced in a saturated at a temperature of from about 270 K to about 310 K potassium nitrate and calcium nitrate-containing mother liquor, which are heated from about 10-40 Kd to about 280-380 K, in a ratio of so that by the end of the reaction the molar ratio of CaOiKaO is 1: (2-13). A reaction solution is then formed, which is unsaturated with potassium nitrate at the reaction temperature, and calcium sulfate hydrate, which is separated from the solution and is taken out after displacing washing. The reaction solution is also separated from part of the udakag. .R/

but. -i a.:. t

razstorg za f-. (:.: og. :: from.

became l: /: z about b; , .j, .-. ;; c :: r. about: s o s n:

PRIMEYIEKKG:: her. 0:; H;,; ./

tvorz -.- with measures.;. . D / solution -AJIJV L-el “temperature; ri; chermo 27.-5: 0,. Vacr /

contact captur / g: division w.

from uterine pacTjuni and in .o, .-. in ..: from r: Se

duct. Uterine fouling e to-; the beginning of the process, the method of the invention was, or hM sen

hidann mustache: a-iCP / GH; d: l; s:. year

syngenite nasche; -; O ;, N / PH / G, eg, l, -e /,

At 298 К НО 4ЛГрС: СМ ДО, 3.1. ry: VRS

mutual 1: one with I; HI osrc .-:.,.: ...;.; / i / ./ also for 5;. -.:, / -.,; about: Model Call. .is. -, drg.- p .: -.i -.-:.;:.;::,}, f.-g; h (.tats And::, .lb; ..- a g ,, :; j;.. .I. Vj that kali z.gi SCIBO ;; ь к: -; ц -; j and с;,: ...- and still holds the tag with jzoy Oh -., shchi: -. that molar co; y nochon - and condemns g him L.;: Hoi,; -. &-;, i - ,,::,; - ;, - / -. - .-. .-. fon:

Huiije; - ;; / ;; - iCX,. ;. .: I.;, - ..: „:.;,;

and / V-, ivi temgeg. y ,,;. ; tsp :: i:.: -. i -.-, ... / ,.: with 2G-. ;;) -. to -: :: l; - / i-g; -J i R, ;;:;. /ax.:;::l

-1EP: 0-: g-::. ; : ..:. g V:.,,:, l -,: - g,,.

Bt-HHO DoG / Ki-t,

: 0; learn to h.:;.:, h. -... .. m / - many of k {u-op; .. Predgyuch: yoke: L.n- cvc; crushed loJ - VO: .HV;:.. FIPN) 2:.: And SSO GS--il / ii, - SUCKERS /.

ngdigms; -: s :: "..c. .j..,;; .-. :. “. :, -. :::; chi: - ri tal;: 0 bre: -:.,: Tn. c / iv-ae ir- ;. , a. ::: - for the account ;; g of speech. /: .- and thanks to more lightweight. but also. g-gogidg - .o installed a further increase in the reaction rate. Preferably, the seed is taken .h the preceding gm cycle is npcu, eccs and is doisle preferably in the form of a vodka suspension together with g: syngenite into the reaction mixture. With ON-, the weight ratio of the seed: the syngens :: is automatically determined to be equal; approximately 1: 1 per dry weight.

The method of the invention will be complemented by the PS:

lizovzztszhes impurity salts i. r;, /.; i -,. v

Seke -KIK; Ol iHDe; : -; ir: ,,. 1 ts ;; :, OINZTIONS: 2 I ate. J ;: / ltiUS FROM

kocentriposy - nor -, sg river; city of Ktsi-no; with

 K VY04G, TG.;. C. ;; ::., C -; -: T1.-i -, pOL-, 3 - Q: C. C. U l -HOBhbirv. KO / lii - SCTBOi- ..: M 6.il- O- i:

8, the reactor 1, which is preferably made in the form of an l-c. Boiler type with agitators, is introduced into the pipeline and the nagoevy in the heater 3 ds temperatures;,. 280-350 K AND O i p b i p 5 C T o O r i lomi (.1.1, 6 h h. U v

Previously common slurry and flow-through slurry

hydrated from the sulphate of Cagl. Kaom.zpodye. WITH; : in the device for o / lzhden; likewise, zvodmts with ngenit and calcium nitrate and 10 ristalliztsts and I. Vmkistoaloizov ;; -: interacting with the process of passing here n.-gtsag kgl-. L oo "chnyk; sooooo through peaKiCD. Pos posg; a and reciprocal-r; co. .ln,; c; i. ss with g. with inhabitant; ;

K -ij-. Reidstazlmg; c-b o; / Residy hydrate; /: /; b rC3 1 G separating the ICT from the Scr. o about:; g ;;

s- l -., (. n: -1grzt ktooz: / 18to -..n, th ra-: dawn by rrvf: G. 2

, , /: ,, -. j.u .. ::, - TSU / --h. ;..,.. Yes; : -g .- / s, - / gs s ;;. re. C nd s C to - Wed h -r-pai: c p; yr; -a oaakd i. vo; -: ..; - g-,.;.: -:, h -,; - .. HJ -: - P 3, g f - - o ,. - mustache: - dl- pei.h,

 -:.,:,,;;.:; - :: aoo-. ., -:.;. -, -:. : .-; , pso .. and--: ..;,: .... :::: - ,; ..-,,. :.; with h;.:, / .g SECURITY OF SECURITY (n-PO; ILIP,; e, Ј.; I; -. 5CS L ..--.: .. L i - .. i--, T

parrot, bassani. JHV, .ic-y zy: gave: to be 25 .- ..:. CL-: ;, the name of the group;

 g Civ.r.-Ch.: Cf: srz soda;: - ::.; ing ;; ;; horn; r - L: jcLL cr ..

i-- -, - Vf-; 1: t r.- rv :::; -. -t, -, --.-- r-; . .--,. - .- --v ;; - i:

; C: C: i - 1l- / gI; LIT-E / O - .. TOZ G. PPS 6

kn priogsb i .. / -1 / lep cis: -: nd p;, tvop -:. /with . JV C;: l; .1 l- .. ::.

 In pR.5D9L I WITH POST Zv 9 033 S OS, and 1-. , S .-.; .- V - .g -; 0 L

HbiX flow, from co- usables of the endgames With zMsGgs: klgo.: .-:. l

CSS: viewer 10. It v-zsti gaeki .-; KMSI FC in. Vop e sds RS. L cr-iec1.-; , 9ts ;; :.: yo sc.u --o; n-; r

. : | p / L l / i, ../ / i .T: .v: P:; L: .i I O K L -: J-CH-LL gvsr; flesh to (, -set; -1 og; JQ: -: / -: - o-i

Dy ua I. TS: DL CTOi O B with: 15 p / 8y: i And

lizovzztszhes impurity salts i. r;, /.; i -,. v

Seke -KIK; Ol iHDe; : -; ir: ,,. 1 ts ;; :, OINZTIONS: 2 I ate. J ;: / ltiUS FROM

kocentriposy - nor -, sg river; city of Ktsi-no; with

 K VY04G, TG.;. C. ;; ::., C -; -: T1.-i -, pOL-, 3 - Q: C. C. U l -HOBhbirv. KO / lii - SCTBOi- ..: M 6.il- O- i:

Since instead of calcium nitrate tetrahydrate, obtained, for example, by deep cooling a concentrated nitrate solution translated into a soluble form of phosphate, the calcium nitrate solution containing calcium nitrate of about 40 can be used to determine the CA / P fertilizer required. % high flexibility with respect to nitrate also becomes possible.

The process of the invention discloses syngenite as a source of potassium for the production of potassium nitrate. Maintaining the CaO: K20 molar ratio from about 1: 6 to 1: 2.5 in the reaction solution and offering a large surface of the seed in the reaction suspension ensures a sufficiently high reaction rate, maintained, preferably at 323-333 K, the reaction temperature so that the syngenite reacts with nitrate calcium for about half an hour passed almost completely. For a continuous mode of operation, therefore, the volume of the reactor. - which consists of a cascade of connected boilers with stirring, in spite of bol1 --.- the flow of circulating solutions of the boundary between the supply of the initial substance is maintained in reasonable rammes. D /; of example 2, for example, the required size of the reactor is about 10 m.

Recycling, parts of formed and syngenite calcium sulphate hydrate with a degree of hydration of 1 / 2-2 has a beneficial effect not only on the reaction rate, but also on the particle size of the newly formed calcium sulphate hydrate. Thus, the output amount of hydrated calcium sulphate is precipitated in a mechanically better dehydrated form, and therefore, the amount of filtration and washing decreases.

Typical for the method of separating the reaction solution before cooling provides for the separation of the possibly added and enriched impurity salts at the moment of boiling from the partial amount of the solution and by mixing the concentrated partial flow to the remaining main amount of the reaction solution also ensures the crystallization of potassium nitrate from the mixed solution, which contains all the constituents in relatively low concentration. This has two advantages: potassium nitrate crystallizes coarse, and adherent solution contains a small amount of impurity substances. Ta0

stepjH / i -: -. С: OT &RDU;: its :: :: -:;,. j, .j; .v: ...,

at tap /: SP .. :) Yayu: L -:, 1 -: -: l /. :::

about G SL; -; RS .YU TO ... G: - G5 - P t .s ..: U-V and .- OtV-. Gp .; ; - g, about:.):.: ;; . . ; ..:

her stage ISG: -; lo ;:: p. Her-- -: -.-, | -, .- exactly down to the sat. Limit ::; m

NO U15LN I PSG: G: th GHA. 3 Ave.-1, G ..- C

the divided prizes eaten: /: o and l. ls significant pst oh, gi.-cr ../. addition, when saturated:: /; all .- .: .-; u; :.: x; yr -: - 10na from lsC 3L, 1,.:: potassium chloride and oasistor j, j t ;, h with in solution n y; -tz: o -: ts about m .; : 2; holding - .., y. h avoid then: yes.: ,, ,,, -. , .- ;;;, tsentr.diyu: -; and: ..;: t: to ;,,.: .... the concentration of GREECE -..-: -: .L ... CM ..-.

si geni and sr g /; : ь: ;; ::.:. ; ..: g. ... step task, .c i. ,; g - g. , p / Mf: aJi- 33CvTc::; chiom

, | : OL CRM COO: /: NT

to gikh and g: .- g, s: S..z,; k :. /and.

B-i

g 1U .r- IIi

tI-n Ґ

l and to pokszano in the examples: and i l l with -...

0 s sym, however, dosg1,1G.its replacement

stzb1; nlzatsi zh dried protktukt p;

mowing for moisture-inges / .y pi in:; doo.

The following three.

serve to further i /; 3

5 iCHHPi.

fl О and М in О 1 1544 G. ЗС Ч - -:; С-- :;

The solution is heated from the initial temperature 30 ° C to 50 ° C and the zeod of the thermostat in a thermos vacuum tank:.: ooooooo r with me alics. Gu oi fiu ./- - ..., and peg-to and and

01 З --J К IT С. TJ LO, J П T; About j .V.:. J; t -, G; -Q and C; D (I) Ј O G OJ O -1TZ I

EG CD r-v, l ;;: about a 1 |; o .- - - a-.: s P, from w and c goi a 5: ъ -: i with - & B shyu cuQJa and ssh iel with

-n Oh si; - p -1 ev ;; z;,, -t l about -. -g; - -. Sisi zcio-co about 5 N ° -, ° BUT s

X CE -: n b. - | | CJ d -, -.:, Yy p L: N o .., .., O -. G1 L- 1, .TJ ,, .V V n-СCDОО Н Ш-,

and O t-,, Go:.:, -j, h - wg - F,;, - o p: s - c o g: tr.-g-sh JCSU.).-C, 7 o su gogo5 n

g t t s S, 1 | - - s -5 G1 ssg - -§s оg115 1s i

Ј S G, 5 i- ЈЈjс.s-j-g.

- F; - - ° s s, og g3 25-g zs,

OY20: 35 5n L1 ° dZh "1H

s- ..,: t: 9 st, -o - Ј.g o -from, I5

-, Cj-V, -; С 4 - with ОCDП) СГQ) X, -Т Т

S Goo V il lx h; PS - OOJ t-sh -, -, a; .- °: -, -, - J x-3,

 . e --- o -; and-b -: -; sш 5

w .. -r..J-i-- ..-., -;,; -g. 9

zagoavka / g / lsLata kaczci mass relation to singechite 1

3 The method according to PP 1 and 2, which differs with the fact that alcium nitrate in STVIR aimodey is served in the form of this solution

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wasp

51

CafN03) 2KCI

No. p / p

a nail

one

2

3

four

five

German patent

No. 3434590

prototype

ie given

4 Method according to

i

p and i and u and /

with the fact that excreting -i pkzpi is mixed with the supra atom of the kzpia Bt, chiometrically about HHiOdiv, calcium content of n n tk kat IP

a about l and c about 1

NiaCI

ri.O

Cm

28:

G C C p39kl

 h e

Cozepvarinc

yuridz e group

0203 C 2 0: 02

Claims (1)

· - '. ABOUT '·· about • 4.0 / DO /) 3 - '/ ΐ. ·' AXIS / hSD. ; c ~ rgp W3, < boroy-, p, -o a oz ορ about: s а о о 338 (ОНДИПФ ί I Oh ~; anesthesia about him, -13 33 7.: H: /; T ! subscription neoo-yam and o ’,;’