CN100467377C - 4A zeolite production technique by bruising process - Google Patents
4A zeolite production technique by bruising process Download PDFInfo
- Publication number
- CN100467377C CN100467377C CNB2007100137451A CN200710013745A CN100467377C CN 100467377 C CN100467377 C CN 100467377C CN B2007100137451 A CNB2007100137451 A CN B2007100137451A CN 200710013745 A CN200710013745 A CN 200710013745A CN 100467377 C CN100467377 C CN 100467377C
- Authority
- CN
- China
- Prior art keywords
- sodium aluminate
- parts
- aluminate solution
- zeolite
- adds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a bruising method of 4A zeolite, which comprises the following steps: (A) allocating 300-500 wt soda and 600-900 wt alumina cement; mixing evenly; inputting into autoclave with 5000-8000 wt water; reacting 10-30 min; controlling temperature at 70-90 deg.c; getting sodium aluminate solution; (B) allocating 4-6 wt sodium aluminate solution, 1 wt liquid soluble glass with module at 2.9-3.2 and solid content at 20-30%; mixing; adding into crystal tank to crystal; adding 0.004-0.006 wt bruising agent; controlling temperature at 70-90 deg.c; reacting 20-30 min; discharging; allocating bulk factor at 1-3 :1 :0.001-0.003= (A) sodium aluminate solution : module at 2.9-3.2 and solid content at 20-30% soluble glass solution : anhydrous alcohol; mixing; heating-up to 70-80 deg.c; reacting 1-2 h; getting bruising agent; (C) filtering; discharging zeolite; (D) drying; storing or packing.
Description
One, technical field
The present invention relates to fine chemistry industry zeolite production technique, relate in particular to a kind of crush method and produce 4A zeolite technology.
Two, background technology
The general technology that adopts of existing synthetic 4A zeolite is: aluminium hydroxide, sodium hydroxide and water are produced sodium aluminate solution earlier, add the pulp of pulp groove with sodium silicate solution then, insert crystallizer tank again, add the directed agents crystallization, more after filtration-process of stirring-filtration-oven dry-packing finishes production.This production technique exists following shortcoming or deficiency: 1. complex process, and crystallization time is long, and yield is low, and the discharging of waste liquid amount is big, influences environmental protection; 2. produce sodium aluminate solution and adopt sodium hydroxide and aluminium hydroxide, investment is big, the expense height.
Three, summary of the invention
The purpose of this invention is to provide a kind of crush method and produce 4A zeolite technology, shortcoming or deficiency that it can overcome effectively or avoid existing in the above-mentioned prior art adopt soda ash and high-alumina cement to produce sodium aluminate, reduce cost effectively, reduce investment, raise the efficiency.
Crush method of the present invention is produced 4A zeolite technology, comprise following processing step: (A) earlier the soda ash of 300～500 parts of weight parts and 600～900 parts high-alumina cement are mixed, put into the reaction kettle for reaction that fills 5000～8000 parts of water, 70～90 ℃ of temperature controls, reacted 10～30 minutes, and made sodium aluminate solution; (B) be 2.9～3.2 with modulus for 4～6 parts with sodium aluminate solution, solid content is 1 part of mixing of liquid sodium silicate of 20～30%, adds the crystallizer tank crystallization; (C) filter out zeolite; (D) oven dry, storage or packing, when (B) step adds the crystallizer tank crystallization, the cracking agent that adds 0.004～0.006 part, 70 ℃～90 ℃ of temperature controls, react discharging after 20～30 minutes, being prepared as of described cracking agent: with volume ratio 1-3: 1: 0.001-0.003=(A) step sodium aluminate solution: modulus is 2.9-3.2, and solid content is 20%～30% sodium silicate solution: after dehydrated alcohol mixes, be warming up to 70 ℃～80 ℃, react and made in 1～2 hour.
Wherein, described (C) step filtrate filtered is back to and continues to participate in producing of sodium aluminate in (A) step.
The present invention has following advantage compared with prior art:
1, add cracking agent post crystallization epigranular, the degree of crystallinity height, less investment, cost is low, produces the 4A zeolite product, compares per ton reducing cost about 600 yuan with adopting aluminium hydrate powder.
2, reduce temperature of reaction, because original Tc is reduced to 70～90 ℃ than common process energy-conservation 10～50% for 100～140 ℃.
3, filtered filter cake reduces to 30～35% by former water content 40～45%, and water content reduces about 10%, thereby reduces the energy consumption in the drying course, has improved production capacity.
Four, description of drawings
No accompanying drawing.
Five, embodiment
A kind of crush method is produced 4A zeolite technology, comprise following processing step: (A) earlier the soda ash of 300～500 parts of weight parts and 600～900 parts high-alumina cement are mixed, put into the reaction kettle for reaction that fills 5000～8000 parts of water, 70～90 ℃ of temperature controls, reacted 10～30 minutes, and made sodium aluminate solution; (B) be 2.9～3.2 with modulus for 4～6 parts with sodium aluminate solution, solid content is 1 part of mixing of liquid sodium silicate of 20～30%, adds the crystallizer tank crystallization; (C) filter out zeolite; (D) oven dry, storage or packing, when (B) step adds the crystallizer tank crystallization, the cracking agent that adds 0.004～0.006 part, 70 ℃～90 ℃ of temperature controls, react discharging after 20～30 minutes, being prepared as of cracking agent: with volume ratio 1-3: 1: 0.001-0.003=(A) step sodium aluminate solution: modulus is 2.9-3.2, and solid content is 20%～30% sodium silicate solution: after dehydrated alcohol mixes, be warming up to 70 ℃～80 ℃, react and made in 1～2 hour.
(C) the step filtrate filtered is back to and continues to participate in producing of sodium aluminate in (A) step.
Now provide following three specific embodiments:
Embodiment 1:
(A) 300 parts of soda ash weight parts and high-alumina cement mix for 600 parts, join in the reactor that fills 5000 parts of water, and 70 ℃ of temperature controls reacted 10 minutes, made sodium aluminate solution; (B) be 2.9 with modulus for 4 parts with the sodium aluminate solution that makes, solid content is 1 part of mixing of liquid sodium silicate of 20%, adds the crystallizer tank crystallization, adds 0.004 part of cracking agent simultaneously, and 70 ℃ of temperature controls react discharging in 20 minutes; (C) filter out zeolite; (D) oven dry, storage or packing.Being prepared as of cracking agent: with volume ratio 1: 1: 0.001=(A) step sodium aluminate solution: modulus is 2.9, and solid content is 20% sodium silicate solution: dehydrated alcohol mixes, and is warming up to 70 ℃, reacts and makes in 1 hour.
Embodiment two:
(A) soda ash 400 weight parts and high-alumina cement mix for 750 parts, join the reaction kettle for reaction that fills 7000 parts of water, and 80 ℃ of temperature controls reacted 20 minutes, made sodium aluminate solution; (B) sodium aluminate solution that makes is 3.2 with modulus for 5 parts, and solid content is 1 part of mixing of liquid sodium silicate of 25%, adds the crystallizer tank crystallization, adds 0.005 part cracking agent simultaneously, and 80 ℃ of temperature controls react discharging in 25 minutes; (C), (D) step is with embodiment one.Being prepared as of cracking agent: with volume ratio 2: 1: 0.002=(A) step sodium aluminate solution: modulus is 2.9, the sodium silicate solution of solid content 25%: dehydrated alcohol mixes, and is warming up to 75 ℃, reacts and makes in 1.5 hours.
Embodiment three:
(A) soda ash 500 weight parts and high-alumina cement mix for 900 parts, join in the reactor that fills 8000 parts of water, and 90 ℃ of temperature controls reacted 20 minutes, made sodium aluminate solution; (B) sodium aluminate solution that makes is 3.2 with modulus for 6 parts, and solid content is 1 part of mixing of liquid sodium silicate of 30%, adds the crystallizer tank crystallization, adds 0.006 part cracking agent simultaneously, and 90 ℃ of temperature controls react discharging in 30 minutes; (C), (D) step is identical with embodiment one.Being prepared as of cracking agent: with volume ratio 3: 1: 0.003=(A) step sodium aluminate solution: modulus is 3.2, the sodium silicate solution of solid content 30%: dehydrated alcohol mixes, and is warming up to 80 ℃, reacts and makes in 2 hours.
Claims (2)
1, a kind of crush method is produced 4A zeolite technology, comprise following processing step: (A) earlier the soda ash of 300～500 parts of weight parts and 600～900 parts high-alumina cement are mixed, put into the reaction kettle for reaction that fills 5000～8000 parts of water, 70～90 ℃ of temperature controls, reacted 10～30 minutes, and made sodium aluminate solution; (B) be 2.9～3.2 with modulus for 4～6 parts with sodium aluminate solution, solid content is 1 part of mixing of liquid sodium silicate of 20～30%, adds the crystallizer tank crystallization; (C) filter out zeolite; (D) oven dry, storage or packing, it is characterized in that when (B) step adds the crystallizer tank crystallization, the cracking agent that adds 0.004～0.006 part, 70 ℃～90 ℃ of temperature controls, react discharging after 20～30 minutes, being prepared as of described cracking agent: with the sodium aluminate solution of (A) step: modulus is 2.9-3.2, and solid content is 20%～30% sodium silicate solution: dehydrated alcohol is with volume ratio 1-3: 1: after the mixed of 0.001-0.003, be warming up to 70 ℃～80 ℃, react and made in 1～2 hour.
2, crush method according to claim 1 is produced 4A zeolite technology, it is characterized in that described (C) step filtrate filtered is back to continue to participate in producing of sodium aluminate in (A) step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100137451A CN100467377C (en) | 2007-03-06 | 2007-03-06 | 4A zeolite production technique by bruising process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100137451A CN100467377C (en) | 2007-03-06 | 2007-03-06 | 4A zeolite production technique by bruising process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041441A CN101041441A (en) | 2007-09-26 |
| CN100467377C true CN100467377C (en) | 2009-03-11 |
Family
ID=38807272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100137451A Expired - Fee Related CN100467377C (en) | 2007-03-06 | 2007-03-06 | 4A zeolite production technique by bruising process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100467377C (en) |
-
2007
- 2007-03-06 CN CNB2007100137451A patent/CN100467377C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101041441A (en) | 2007-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101367529B (en) | Method for synthesis of 4A molecular sieve with coal ash alkali melting method | |
| CN100434364C (en) | 4A zeolite synthesized from kaolin by low-temperature alkali fusion method | |
| CN102092749A (en) | Preparation method of boehmite | |
| CN101318663A (en) | Method for preparing high-modulus sodium silicate | |
| CN102039197A (en) | Amorphous silicon aluminium and preparation method thereof | |
| CN103101924A (en) | Method for preparing ZSM-22 molecular sieve by using seed crystal synthesis method | |
| CN101723397A (en) | Method for preparing zeolite molecular sieve by using oil shale residues | |
| CN105645446B (en) | Carbonation method prepares the aging method of boehmite | |
| CN102107881B (en) | Method for preparing NaX zeolite | |
| CN102107884A (en) | Method for preparing P type zeolite | |
| CN111704143A (en) | Production process for preparing composite calcium silicate by using rice hull ash | |
| CN101905892B (en) | Process method for preparing 4A zeolite by recycling silica slag and aluminium slag | |
| CN100582004C (en) | Method for preparing high whiteness A-type zeolite from coal gangue | |
| CN102500184B (en) | Closed-circuit recycling process of waste gas and waste residue generated during production of brown fused alumina and calcium carbide | |
| CN106542534A (en) | A kind of method of impurity natrium in de-sodium agent removing afwillite | |
| CN102583541A (en) | Sodium chromate alkali solution impurity removal method and preparation method of chromic oxide | |
| WO2007009377A1 (en) | A process for preparing powdery alumina from low concentration solution by seed decomposition | |
| CN102107880A (en) | Method for preparing zeolite 4A | |
| CN101186324A (en) | Deep decomposition method for sodium aluminate solution | |
| CN101891227A (en) | Silicon-containing sodium aluminate solution deep desiliconization method | |
| CN100467377C (en) | 4A zeolite production technique by bruising process | |
| CN102701232B (en) | Preparation method of NaY molecular sieve | |
| CN101580293A (en) | Decolorization method for sodium aluminate solution | |
| RU2283280C1 (en) | Method of preparing synthetic a-type zeolite | |
| CN101935046B (en) | Alkali catalytic desiliconisation method for kaolin and application of product thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20100306 |