CN102583294A - Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst - Google Patents

Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst Download PDF

Info

Publication number
CN102583294A
CN102583294A CN2012100632197A CN201210063219A CN102583294A CN 102583294 A CN102583294 A CN 102583294A CN 2012100632197 A CN2012100632197 A CN 2012100632197A CN 201210063219 A CN201210063219 A CN 201210063219A CN 102583294 A CN102583294 A CN 102583294A
Authority
CN
China
Prior art keywords
sodium
neutralization
nitrate
ammonium nitrate
tripoly phosphate
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.)
Pending
Application number
CN2012100632197A
Other languages
Chinese (zh)
Inventor
宋锡高
程林
祝勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wengfu Group Co Ltd
Original Assignee
Wengfu Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wengfu Group Co Ltd filed Critical Wengfu Group Co Ltd
Priority to CN2012100632197A priority Critical patent/CN102583294A/en
Publication of CN102583294A publication Critical patent/CN102583294A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Catalysts (AREA)

Abstract

The invention discloses a method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst. The method comprises the steps as follows: adding soda and wet process phosphoric acid are in a neutralization agitation tank for neutralization reaction, adding sodium nitrate in the product according to the proportion that 4 to 5 kg of sodium nitrate added in one ton of sodium tripolyphosphate after the neutralization reaction is largely over, boiling for 15 to 20 min to produce sodium orthophosphate neutralization liquid, pumping the sodium orthophosphate neutralization liquid into a neutralization liquid storage tank, and finally pumping the neutralization liquid into a polymerization furnace by a high pressure pump to synthesize sodium tripolyphosphate. The pH value of the neutralization reaction is controlled to be 6.5 to 7.0, the Baume density of neutralization slurry is controlled to be 54 to 56 Degree Baum'e, and the relative density is 1.50 to 1.60. After the method provided by the invention is adopted, the cost for transportation and safety management of nitramine (hazardous chemical substance) can be reduced; and when nitramine is replaced by sodium nitrate, Na<+> ion in Na NO3 can be fully utilized, and the consumption of soda can be reduced, so that the manufacturing cost can be lowered.

Description

Replace an ammonium nitrate to produce the method for catalyzer as tripoly phosphate sodium STPP with SODIUMNITRATE
Technical field
The present invention relates to phosphatic working method, be specifically related to a kind of method of producing catalyzer as tripoly phosphate sodium STPP with SODIUMNITRATE replacement an ammonium nitrate.
Background technology
Tripoly phosphate sodium STPP (Na 5P 3O 10) branch of I type and II type is arranged, industrial tripoly phosphate sodium STPP is actually the mixture of I type and II type.I type dissolution rate is fast, and heat effect is big when hydration generates hexahydrate, in atmosphere, is prone to moisture absorption caking.The II type moisture absorption is slower, prevented from caking.Add the catalyzer that an ammonium nitrate is produced as tripoly phosphate sodium STPP, can accelerate the production rate of tripoly phosphate sodium STPP, can make the I type be converted into the II type simultaneously, reduce I type content.But an ammonium nitrate belongs to the dangerization article, and its transportation, storage and use all must be taked corresponding safe precaution measure, have increased production cost.
Summary of the invention
The purpose of this invention is to provide a kind of method, through the catalyzer that uses SODIUMNITRATE to replace ammonium nitrate to produce, to reduce ammonium nitrate (dangerization article) transportation and security control cost as industrial tripoly phosphate sodium STPP.
Technical scheme of the present invention is: a kind of method that replaces an ammonium nitrate to produce catalyzer as tripoly phosphate sodium STPP with SODIUMNITRATE comprises the steps:
To in steel basin in add soda ash and phosphoric acid by wet process carries out neutralization reaction; When in when this end of reactive group; The product of pressing tripoly phosphate sodium STPP per ton adds the SODIUMNITRATE of 4-5kg, boils 15~20min, makes ortho-phosphoric acid sodium salt neutralizer; And pump in the neutralizer storage tank, at last neutralizer is pumped into synthetic tripoly phosphate sodium STPP in the polymerization furnace through HPP.
The pH value of above-mentioned neutralization reaction is controlled at 6.5~7.0; In and the slip degree Beaume be controlled between 54~56 ° of B é, specific density is 1.50~1.60.
The invention has the beneficial effects as follows:, can reduce ammonium nitrate (dangerization article) transportation and security control cost through the catalyzer that uses SODIUMNITRATE to replace ammonium nitrate to produce as industrial tripoly phosphate sodium STPP; Use SODIUMNITRATE to replace ammonium nitrate can also make full use of NaNO 3In the Na+ ion, can reduce the soda ash usage quantity, thereby reduce production costs.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment
Certain factory only uses ammonium nitrate as the catalyzer supplement production in April, 2011; When 2931.17 tons of monthly outputs; With 8.16 tons of ammonium nitrates, 2478.63 yuan/ton of ammonium nitrate unit prices (not containing tax), actual use cost is 8.16 ÷, 2931.17 * 2478.63=6.90 unit/ton tripoly phosphate sodium STPP;
Take method of the present invention in October, 2011; Only use SODIUMNITRATE as the catalyzer supplement production; When 2748.675 tons of monthly outputs, with 11.3 tons in SODIUMNITRATE, 2965.81 yuan/ton of SODIUMNITRATE unit prices (not containing tax); Use cost is 11.3 ÷, 2748.675 * 2965.81=12.19 unit/ton tripoly phosphate sodium STPP; 11.3 ton SODIUMNITRATE can reduce the usage quantity of 11.3 * 106 * 98% ÷ (85 * 98%)=14.09 ton soda ash, then uses SODIUMNITRATE 14.09 ÷, 2748.675 * 1725.05=8.84 unit/ton tripoly phosphate sodium STPP that can reduce cost October, reality interpolation SODIUMNITRATE cost should be: 12.19-8.84=3.35 unit/ton tripoly phosphate sodium STPP;
Can find out the catalyzer that uses SODIUMNITRATE to replace ammonium nitrate to produce as industrial five sodium from above, producing that five sodium per ton can reduce production costs is 6.90-3.35=3.55 unit.

Claims (2)

1. the method that replaces an ammonium nitrate to produce catalyzer as tripoly phosphate sodium STPP with SODIUMNITRATE is characterized in that it comprises the steps:
To in steel basin in add soda ash and phosphoric acid by wet process carries out neutralization reaction; When in when this end of reactive group; The product of pressing tripoly phosphate sodium STPP per ton adds the SODIUMNITRATE of 4-5kg, boils 15~20min, makes ortho-phosphoric acid sodium salt neutralizer; And pump in the neutralizer storage tank, at last neutralizer is pumped into synthetic tripoly phosphate sodium STPP in the polymerization furnace through HPP.
2. the method that SODIUMNITRATE according to claim 1 replaces an ammonium nitrate to produce catalyzer as tripoly phosphate sodium STPP is characterized in that the pH value of said neutralization reaction is controlled at 6.5~7.0; In and the slip degree Beaume be controlled between 54~56 ° of B é, specific density is 1.50~1.60.
CN2012100632197A 2012-03-12 2012-03-12 Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst Pending CN102583294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100632197A CN102583294A (en) 2012-03-12 2012-03-12 Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100632197A CN102583294A (en) 2012-03-12 2012-03-12 Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst

Publications (1)

Publication Number Publication Date
CN102583294A true CN102583294A (en) 2012-07-18

Family

ID=46472660

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100632197A Pending CN102583294A (en) 2012-03-12 2012-03-12 Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst

Country Status (1)

Country Link
CN (1) CN102583294A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103466586A (en) * 2013-09-26 2013-12-25 瓮福(集团)有限责任公司 Method for producing sodium tripolyphosphate by taking mixture of sodium nitrate and ammonium nitrate as catalyst
CN104843662A (en) * 2015-04-15 2015-08-19 绵阳市神龙饲料有限公司 Preparation method for phosphoric acid sodium salts
CN105197908A (en) * 2015-09-15 2015-12-30 湖北兴发化工集团股份有限公司 Production method of sodium tripolyphosphate with high solubility
CN105329871A (en) * 2015-11-02 2016-02-17 湖北兴发化工集团股份有限公司 Production method of quick-dissolving type sodium hexametaphosphate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101597045A (en) * 2009-07-03 2009-12-09 贵州青利集团股份有限公司 The method for preparing tripoly phosphate sodium STPP with composite phosphate dry powder
CN101920949A (en) * 2010-09-19 2010-12-22 湖北兴发化工集团股份有限公司 Method for producing nitrate/nitrite-free sodium tripolyphosphate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101597045A (en) * 2009-07-03 2009-12-09 贵州青利集团股份有限公司 The method for preparing tripoly phosphate sodium STPP with composite phosphate dry powder
CN101920949A (en) * 2010-09-19 2010-12-22 湖北兴发化工集团股份有限公司 Method for producing nitrate/nitrite-free sodium tripolyphosphate

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
陈继善: "中国三聚磷酸钠生产现状及发展对策", 《无机盐工业》 *
黄艳芹: "三聚磷酸钠生产工艺控制探讨", 《河南职技师院学报》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103466586A (en) * 2013-09-26 2013-12-25 瓮福(集团)有限责任公司 Method for producing sodium tripolyphosphate by taking mixture of sodium nitrate and ammonium nitrate as catalyst
CN104843662A (en) * 2015-04-15 2015-08-19 绵阳市神龙饲料有限公司 Preparation method for phosphoric acid sodium salts
CN104843662B (en) * 2015-04-15 2018-02-23 绵阳市神龙重科实业有限公司 A kind of preparation method of sodium ascorbyl phosphate
CN105197908A (en) * 2015-09-15 2015-12-30 湖北兴发化工集团股份有限公司 Production method of sodium tripolyphosphate with high solubility
CN105197908B (en) * 2015-09-15 2017-11-07 湖北兴发化工集团股份有限公司 A kind of production method of high-dissolvability sodium tripolyphosphate
CN105329871A (en) * 2015-11-02 2016-02-17 湖北兴发化工集团股份有限公司 Production method of quick-dissolving type sodium hexametaphosphate

Similar Documents

Publication Publication Date Title
Kushch et al. Hydrogen-generating compositions based on magnesium
CN102417169B (en) Acidolysis method of magnesium-containing phosphate rock
CN103332700B (en) Method for preparing potassium borofluoride through fluorine-containing wastewater
CN102583294A (en) Method for producing sodium tripolyphosphate by replacing ammonium nitrate with sodium nitrate taken as catalyst
CN101898769B (en) Method for producing high-purity ammonium bifluoride
CN103043759B (en) Method for preparing polyaluminium ferric chloride flocculating agent by pickling waste liquid and waste aluminium material
CN104003362A (en) Production method of dipotassium phosphate
CN102603015A (en) Method for producing polymerized iron chloride by utilizing acid-washing waste liquid of steel
CN102408102B (en) Preparation method of nanometer iron phosphate
CN103113139A (en) Method for producing multivariate nitro compound fertilizer from wet-process phosphoric acid purification sludge
CN104229854A (en) Calcium chloride solution producing method
CN102627306B (en) Novel method for preparing solid aluminum sulfate by using waste
CN103011114A (en) Method of producing monopotassium phosphate
CN103466586A (en) Method for producing sodium tripolyphosphate by taking mixture of sodium nitrate and ammonium nitrate as catalyst
CN103570044A (en) Method for processing waste mixed liquid of sodium sulfate and ammonium sulfate by using carbonate
CN104118854A (en) Method for preparing tripolyphosphate and hexametaphosphate products by using byproduct pyrophosphate
CN102431985A (en) Device for producing powdery monoammonium phosphate by using extraction spent acid
CN102556973A (en) Method for producing hydrofluoric acid from fluorite as raw material
CN103011984B (en) Liquid superphosphate active porous agent
CN101602517A (en) A kind for the treatment of agent for molten polyaluminium ferric chloride and preparation method thereof
CN103708524A (en) Method for preparing chemical materials by decomposing potassium-bearing rock by fluorosilicic acid cycling method
CN103738967A (en) Method for production of sodium fluosilicate from fluorine-containing acidic wastewater
CN103420349A (en) Production method of phosphorus pentachloride
CN105540683A (en) Method for preparing FeCl3 in filler tower by using iron-steel hydrochloric acid washing waste liquid
CN202246072U (en) Device for producing powdery monoammonium phosphate by using extract spent acid

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120718